mirror of
https://github.com/mistergibson/gxg-framework.git
synced 2026-08-15 03:46:00 -07:00
3092 lines
124 KiB
Ruby
3092 lines
124 KiB
Ruby
# PeristedArray Code:
|
|
module GxG
|
|
module Database
|
|
#
|
|
class DetachedArray
|
|
#
|
|
private
|
|
#
|
|
def element_destroy(indexer=nil)
|
|
# Review : develop on-server element destroy command path ??
|
|
end
|
|
# Note: property_read handled by load_property_links
|
|
def element_write(indexer=nil)
|
|
# Review : not needed on webclient version ??
|
|
end
|
|
#
|
|
def load_element_links
|
|
# Review : not needed on webclient version ??
|
|
end
|
|
#
|
|
def refresh_ordinals()
|
|
new_links = []
|
|
@element_links.each_with_index do |the_key, ordinal|
|
|
@element_links[(ordinal)][:record][:ordinal] = ordinal
|
|
new_links << @element_links[(ordinal)]
|
|
end
|
|
@element_links = new_links
|
|
end
|
|
#
|
|
public
|
|
#
|
|
def self.create()
|
|
result = ::GxG::Database::DetachedArray.new
|
|
result.uuid = ::GxG::uuid_generate.to_sym
|
|
result.title = "Untitled #{new_object.uuid.to_s}"
|
|
result
|
|
end
|
|
#
|
|
def self.create_constrained(the_format=nil)
|
|
result = ::GxG::Database::DetachedArray::create()
|
|
format_record = nil
|
|
if ::GxG::valid_uuid?(the_format)
|
|
format_record = ::GxG::DB[:roles][:formats].format_load({:uuid => the_format})
|
|
else
|
|
format_record = ::GxG::DB[:roles][:formats].format_load({:ufs => the_format})
|
|
end
|
|
if format_record
|
|
#
|
|
unless ::GxG::DB_SAFETY.synchronize { GxG::DB[:formats][(format_record[:uuid].to_s.to_sym)] }
|
|
::GxG::DB_SAFETY.synchronize { GxG::DB[:formats][(format_record[:uuid].to_s.to_sym)] = format_record }
|
|
end
|
|
#
|
|
result.constraint = format_record[:uuid].to_s.to_sym
|
|
end
|
|
result
|
|
end
|
|
#
|
|
def assimilate_detached(detached_object=nil)
|
|
result = false
|
|
if detached_object.is_a?(::GxG::Database::DetachedArray)
|
|
# Review : ?? the ability to ingest a detached_object's data while retaining self's identity data. worth it ??
|
|
object_db = [{:destination => self, :source => detached_object}]
|
|
while object_db.size > 0 do
|
|
pair = object_db.shift
|
|
if pair
|
|
pair[:source].search do |item, selector, container|
|
|
if item.is_any?(::GxG::Database::DetachedArray, ::GxG::Database::DetachedHash)
|
|
if item.is_a?(::GxG::Database::DetachedHash)
|
|
unless pair[:destination][(selector)].is_a?(::GxG::Database::PersistedHash)
|
|
pair[:destination][(selector)] = @db_address[:database].try_persist({}, @credential, {:with_uuid => item.uuid.to_s, :with_title => item.title.to_s, :with_version => item.version, :with_format => item.format})
|
|
end
|
|
object_db << [{:destination => pair[:destination][(selector)], :source => item}]
|
|
else
|
|
if item.is_a?(::GxG::Database::DetachedArray)
|
|
unless pair[:destination][(selector)].is_a?(::GxG::Database::PersistedArray)
|
|
pair[:destination][(selector)] = @db_address[:database].try_persist([], @credential, {:with_uuid => item.uuid.to_s, :with_title => item.title.to_s, :with_version => item.version, :with_constraint => item.constraint})
|
|
end
|
|
object_db << [{:destination => pair[:destination][(selector)], :source => item}]
|
|
end
|
|
end
|
|
#
|
|
else
|
|
pair[:destination][(selector)] = item
|
|
end
|
|
end
|
|
end
|
|
end
|
|
#
|
|
result = true
|
|
end
|
|
result
|
|
end
|
|
#
|
|
def detach()
|
|
::GxG::Database::detached_import(self.export())
|
|
end
|
|
#
|
|
def emit_structures(preference=false)
|
|
@as_structures = preference
|
|
preference
|
|
end
|
|
#
|
|
def uuid()
|
|
@uuid.clone
|
|
end
|
|
#
|
|
def uuid=(the_uuid=nil)
|
|
if GxG::valid_uuid?(the_uuid)
|
|
@uuid = the_uuid.to_s.to_sym
|
|
end
|
|
end
|
|
#
|
|
def title()
|
|
@title.clone
|
|
end
|
|
#
|
|
def title=(the_title=nil)
|
|
if the_title
|
|
@title = the_title.to_s[0..255]
|
|
self.increment_version
|
|
end
|
|
end
|
|
#
|
|
def version()
|
|
@version.clone
|
|
end
|
|
#
|
|
def version=(the_version=nil)
|
|
if the_version.is_a?(::Numeric)
|
|
@version = the_version.to_s("F").to_d
|
|
end
|
|
end
|
|
#
|
|
def element_version(index=nil)
|
|
result = 0.0
|
|
if index.is_a?(::Numeric)
|
|
#
|
|
if @element_links[(index)]
|
|
result = @element_links[(index)][:record][:version]
|
|
else
|
|
result = 0.0
|
|
end
|
|
#
|
|
end
|
|
result
|
|
end
|
|
#
|
|
def set_element_version(element_index, the_version=nil)
|
|
result = false
|
|
if @element_links[(element_index)]
|
|
if the_version.is_a?(::Numeric)
|
|
@element_links[(element_index)][:record][:version] = (((the_version.to_f) * 10000.0).to_i.to_f / 10000.0)
|
|
result = true
|
|
else
|
|
log_warning("Attempted to set version to an invalid version value #{the_version.inspect} for index #{element_index.inspect} on Object #{@uuid.inspect}")
|
|
end
|
|
else
|
|
log_warning("Attempted to set version with an invalid index #{element_index.inspect} on Object #{@uuid.inspect}")
|
|
end
|
|
result
|
|
end
|
|
#
|
|
def constraint()
|
|
@constraint.clone
|
|
end
|
|
#
|
|
def constraint=(the_format=nil)
|
|
if GxG::valid_uuid?(the_format)
|
|
@constraint = the_format.to_s.to_sym
|
|
end
|
|
end
|
|
#
|
|
def parent()
|
|
@parent
|
|
end
|
|
#
|
|
def parent=(object=nil)
|
|
if object.is_any?([::GxG::Database::DetachedHash, ::GxG::Database::DetachedArray])
|
|
# Review : parent can only be set once -- is this best??
|
|
unless @parent
|
|
@parent = object
|
|
end
|
|
end
|
|
end
|
|
# Permission Management:
|
|
def get_permissions()
|
|
# Review : not needed on webclient version ??
|
|
end
|
|
#
|
|
def set_permissions(credential=nil, the_permission=nil)
|
|
# Review : not needed on webclient version ??
|
|
end
|
|
#
|
|
def reservation()
|
|
# Review : not needed on webclient version ??
|
|
end
|
|
#
|
|
def write_permission?()
|
|
true
|
|
end
|
|
#
|
|
def write_reserved?()
|
|
true
|
|
end
|
|
#
|
|
def release_reservation()
|
|
true
|
|
end
|
|
#
|
|
def get_reservation()
|
|
true
|
|
end
|
|
#
|
|
def wait_for_reservation(timeout=nil)
|
|
true
|
|
end
|
|
#
|
|
def get_delegate()
|
|
# Review : not needed on webclient version ??
|
|
end
|
|
#
|
|
def set_delegate(the_delegate=nil)
|
|
# Review : not needed on webclient version ??
|
|
end
|
|
#
|
|
def increment_version()
|
|
if self.alive?
|
|
if self.write_reserved?()
|
|
@version = (((@version + 0.0001) * 10000.0).to_i.to_f / 10000.0)
|
|
end
|
|
end
|
|
end
|
|
#
|
|
def save_version()
|
|
# Review : not needed on webclient version ??
|
|
end
|
|
#
|
|
def clear_constraint()
|
|
if self.alive?
|
|
if @constraint
|
|
@constraint = nil
|
|
end
|
|
end
|
|
true
|
|
end
|
|
#
|
|
def constraint()
|
|
@constraint.clone
|
|
end
|
|
#
|
|
def ufs()
|
|
if @format
|
|
record = GxG::DB[:formats][(@format.to_s.to_sym)]
|
|
if record
|
|
record[:ufs].to_s.to_sym
|
|
else
|
|
""
|
|
end
|
|
else
|
|
""
|
|
end
|
|
end
|
|
#
|
|
def refresh_links()
|
|
# Review : not needed on webclient ??
|
|
end
|
|
#
|
|
def initialize()
|
|
# Review : !
|
|
@as_structures = false
|
|
@active = true
|
|
@uuid = nil
|
|
@title = nil
|
|
@version = 0.0
|
|
@constraint = nil
|
|
@parent = nil
|
|
@data = []
|
|
@element_links = []
|
|
self
|
|
end
|
|
#
|
|
def inspect()
|
|
# FORNOW: make re-entrant (yes, I know!) Fortunately, circular links are impossible with DetachedArray.
|
|
# TODO: make interative instead of re-entrant.
|
|
result = "["
|
|
@element_links.each_index do |element_index|
|
|
result = result + @element_links[(element_index)][:content].inspect
|
|
# if @element_links[(element_index)].is_a?(::Hash)
|
|
# result = result + @element_links[(element_index)][:content].inspect
|
|
# else
|
|
# result = result + "(Not Loaded)"
|
|
# end
|
|
unless element_index == (@element_links.size - 1)
|
|
result = result + ", "
|
|
end
|
|
end
|
|
result = result + "]"
|
|
result
|
|
end
|
|
#
|
|
def alive?()
|
|
@active
|
|
end
|
|
#
|
|
def db_address()
|
|
nil
|
|
end
|
|
#
|
|
def save()
|
|
# Review : create a save-to-server command path here.
|
|
end
|
|
#
|
|
def deactivate()
|
|
::GxG::DB_SAFETY.synchronize { ::GxG::DB[:cache].delete(@uuid) }
|
|
@active = false
|
|
true
|
|
end
|
|
#
|
|
def destroy()
|
|
result = false
|
|
if self.alive?
|
|
result = self.deactivate
|
|
end
|
|
result
|
|
end
|
|
#
|
|
def size()
|
|
@element_links.size
|
|
end
|
|
#
|
|
def structure_attached?()
|
|
# Review : not needed on webclient ??
|
|
false
|
|
end
|
|
def structure_detach()
|
|
# Review : not needed on webclient ??
|
|
true
|
|
end
|
|
#
|
|
def []=(indexer=nil, value=nil)
|
|
# Only works with Integer indexes.
|
|
unless self.alive?()
|
|
raise Exception, "Attempted to alter a defunct structure"
|
|
end
|
|
result = nil
|
|
if indexer.is_a?(::Integer)
|
|
if value.is_a?(::OpenStruct)
|
|
value = value.table
|
|
end
|
|
# Review : rewrite ????
|
|
if value.is_any?(::GxG::Database::valid_field_classes()) || value.is_any?(::GxG::Database::DetachedHash, ::GxG::Database::DetachedArray, ::Hash, ::Array)
|
|
unless self.write_reserved?()
|
|
self.get_reservation()
|
|
end
|
|
if self.write_reserved?()
|
|
# Further screen value provided:
|
|
# ### Check provided DetachedHashes and DetachedArrays
|
|
# ### Check provided Hashes and Arrays
|
|
if value.is_any?(::Hash, ::Array)
|
|
value.search do |the_value, the_selector, the_container|
|
|
unless the_value.is_any?(::GxG::Database::valid_field_classes()) || the_value.is_any?(::GxG::Database::DetachedHash, ::GxG::Database::DetachedArray, ::Hash, ::Array)
|
|
raise Exception, "The structure you are attaching has an unpersistable item within it (not supported)."
|
|
end
|
|
end
|
|
end
|
|
# ### Property Exists?
|
|
if @element_links[(indexer)]
|
|
# set property to value
|
|
operation = :set_value
|
|
else
|
|
if @constraint
|
|
raise Exception, "Formatted - the structure cannot be altered"
|
|
else
|
|
# add property : value pair
|
|
operation = :add_value
|
|
end
|
|
end
|
|
# ### Prepare new value
|
|
new_value = {
|
|
:linkid => nil,
|
|
:content => nil,
|
|
:loaded => false,
|
|
:state => 0,
|
|
:record => {
|
|
:parent_uuid => @uuid.to_s,
|
|
:ordinal => 0,
|
|
:version => 0.0,
|
|
:element => "element_boolean",
|
|
:element_boolean => -1,
|
|
:element_integer => 0,
|
|
:element_float => 0.0,
|
|
:element_bigdecimal => ::BigDecimal.new("0.0"),
|
|
:element_datetime => ::Time.now,
|
|
:time_offset => 0.0,
|
|
:time_prior => 0.0,
|
|
:time_after => 0.0,
|
|
:length => 0,
|
|
:element_text => "",
|
|
:element_binary => nil,
|
|
:element_array => nil,
|
|
:element_hash => nil
|
|
}
|
|
}
|
|
#
|
|
if value.is_any?(::GxG::Database::DetachedHash, ::GxG::Database::DetachedArray)
|
|
# ### Assimilate DetachedHash or DetachedArray
|
|
new_value[:content] = value
|
|
new_value[:loaded] = true
|
|
new_value[:state] = new_value[:content].hash
|
|
# Note: version is sync'd here, but don't rely upon property version with linked structures, but use structure's version method.
|
|
new_value[:record][:version] = new_value[:content].version()
|
|
if value.is_a?(::GxG::Database::DetachedHash)
|
|
new_value[:record][:element] = "element_hash"
|
|
new_value[:record][:element_hash] = value
|
|
else
|
|
new_value[:record][:element] = "element_array"
|
|
new_value[:record][:element_array] = value
|
|
end
|
|
else
|
|
# ### Persist Hashes and Arrays
|
|
if value.is_any?(::Hash, ::Array)
|
|
new_value[:content] = ::GxG::Database::iterative_detached_persist(value)
|
|
new_value[:loaded] = true
|
|
new_value[:state] = new_value[:content].hash
|
|
# Note: version is sync'd here, but don't rely upon property version with linked structures, but use structure's version method.
|
|
new_value[:record][:version] = new_value[:content].version()
|
|
if value.is_a?(::Hash)
|
|
new_value[:record][:element] = "element_hash"
|
|
new_value[:record][:element_hash] = new_value[:content]
|
|
else
|
|
new_value[:record][:element] = "element_array"
|
|
new_value[:record][:element_array] = new_value[:content]
|
|
end
|
|
else
|
|
# ### Persist Base Element Values
|
|
new_value[:record][:element] = ::GxG::Database::element_table_for_instance(value).to_s
|
|
case new_value[:record][:element]
|
|
when "element_boolean"
|
|
case value.class
|
|
when ::NilClass
|
|
new_value[:record][:element_boolean] = -1
|
|
new_value[:content] = nil
|
|
when ::FalseClass
|
|
new_value[:record][:element_boolean] = 0
|
|
new_value[:content] = false
|
|
when ::TrueClass
|
|
new_value[:record][:element_boolean] = 1
|
|
new_value[:content] = true
|
|
end
|
|
when "element_integer"
|
|
new_value[:record][:element_integer] = value
|
|
new_value[:content] = value
|
|
when "element_float"
|
|
new_value[:record][:element_float] = value
|
|
new_value[:content] = value
|
|
when "element_bigdecimal"
|
|
new_value[:record][:element_bigdecimal] = ::BigDecimal.new(value.to_s)
|
|
new_value[:content] = new_value[:record][:element_bigdecimal]
|
|
when "element_datetime"
|
|
new_value[:record][:element_datetime] = value
|
|
new_value[:content] = value
|
|
when "element_text"
|
|
new_value[:record][:element_text] = value
|
|
new_value[:record][:length] = value.size
|
|
new_value[:content] = value
|
|
when "element_binary"
|
|
# Note: be sure to keep version & length sync'd with linked binary element record
|
|
if operation == :set_value
|
|
new_value[:record][:version] = @element_links[(indexer)][:record][:version]
|
|
new_value[:record][:element_binary_uuid] = @element_links[(indexer)][:record][:element_binary_uuid]
|
|
end
|
|
new_value[:record][:length] = value.size
|
|
new_value[:content] = value
|
|
else
|
|
raise Exception, "Unable to map an element type for value: #{value.inspect}"
|
|
end
|
|
end
|
|
end
|
|
# ### Commit Changes
|
|
case operation
|
|
when :set_value
|
|
# Note: Set In-memory value only, don't save unless you have to.
|
|
if new_value[:content].is_a?(@element_links[(indexer)][:content].class) || ([true, false, nil].include?(new_value[:content]) && [true, false, nil].include?(@element_links[(indexer)][:content]))
|
|
# Replace value directly, but don't save yet unless you have to (:state refers to the last 'loaded-in-from-db' state of the data).
|
|
new_value[:linkid] = @element_links[(indexer)][:linkid]
|
|
if new_value[:content].is_any?(::GxG::Database::DetachedHash, ::GxG::Database::DetachedArray)
|
|
new_value[:record][:version] = new_value[:content].version()
|
|
else
|
|
new_value[:record][:version] = (((@element_links[(indexer)][:record][:version].to_f + 0.0001) * 10000.0).to_i.to_f / 10000.0)
|
|
end
|
|
new_value[:record][:ordinal] = @element_links[(indexer)][:record][:ordinal]
|
|
new_value[:loaded] = true
|
|
new_value[:state] = @element_links[(indexer)][:state]
|
|
#
|
|
if new_value[:content].is_a?(::String)
|
|
@element_links[(indexer)] = new_value
|
|
end
|
|
#
|
|
else
|
|
# Other class value being substituted.
|
|
if new_value[:content].is_any?(::GxG::Database::DetachedHash, ::GxG::Database::DetachedArray)
|
|
new_value[:record][:version] = new_value[:content].version()
|
|
else
|
|
new_value[:record][:version] = (((@element_links[(indexer)][:record][:version].to_f + 0.0001) * 10000.0).to_i.to_f / 10000.0)
|
|
end
|
|
new_value[:record][:ordinal] = @element_links[(indexer)][:record][:ordinal]
|
|
new_value[:loaded] = true
|
|
#
|
|
@element_links[(indexer)] = new_value
|
|
end
|
|
#
|
|
when :add_value
|
|
# Note: set in-memory value and save.
|
|
if new_value[:content].is_any?(::GxG::Database::DetachedHash, ::GxG::Database::DetachedArray)
|
|
new_value[:record][:version] = new_value[:content].version()
|
|
else
|
|
new_value[:record][:version] = 0.0
|
|
end
|
|
new_value[:record][:ordinal] = @element_links.size
|
|
new_value[:loaded] = true
|
|
#
|
|
@element_links[(indexer)] = new_value
|
|
end
|
|
# ### Handle coordination between persisted objects:
|
|
if @element_links[(indexer)][:content].is_any?(::GxG::Database::DetachedHash, ::GxG::Database::DetachedArray)
|
|
@element_links[(indexer)][:content].parent = (self)
|
|
end
|
|
#
|
|
self.increment_version()
|
|
result = @element_links[(indexer)][:content]
|
|
#
|
|
else
|
|
raise Exception, "You do not have sufficient privileges to make this change. (write-reservation)"
|
|
end
|
|
else
|
|
raise Exception, "The value is not persistable."
|
|
end
|
|
else
|
|
raise Exception, "You must provide a index in the form of an Integer."
|
|
end
|
|
result
|
|
end
|
|
#
|
|
#
|
|
def [](indexer=nil)
|
|
result = nil
|
|
# if exists
|
|
# if is not loaded, load element (if String or ByteArray)
|
|
if self.alive?()
|
|
if indexer.is_a?(::Integer)
|
|
if @element_links[(indexer)]
|
|
result = @element_links[(indexer)][:content]
|
|
if @as_structures == true
|
|
if result.is_a?(::GxG::Database::PersistedHash)
|
|
result = ::OpenStruct.new(result)
|
|
end
|
|
end
|
|
end
|
|
else
|
|
raise ArgumentError, "You must specify with an Integer, not a #{indexer.class.inspect}"
|
|
end
|
|
else
|
|
raise Exception, "Attempted to access a defunct structure"
|
|
end
|
|
result
|
|
end
|
|
#
|
|
def delete_at(indexer=nil)
|
|
result = nil
|
|
# if exists
|
|
# if is not loaded, load element
|
|
if self.alive?()
|
|
if indexer.is_a?(::Integer)
|
|
if self.write_reserved?()
|
|
#
|
|
if @element_links[(indexer)]
|
|
# This will load the unloaded prior to separation.
|
|
result = self[(indexer)]
|
|
if @as_structures == true
|
|
if result.is_a?(::GxG::Database::PersistedHash)
|
|
result = ::OpenStruct.new(result)
|
|
end
|
|
end
|
|
the_link = @element_links.delete_at(indexer)
|
|
# Review : element-unlink on server side ??
|
|
if the_link[:content].is_any?(::GxG::Database::DetachedHash, ::GxG::Database::DetachedArray)
|
|
the_link[:content].save
|
|
end
|
|
self.increment_version()
|
|
end
|
|
#
|
|
else
|
|
raise Exception, "You do not have sufficient privileges to make this change"
|
|
end
|
|
else
|
|
raise ArgumentError, "You must specify with a Symbol, not a #{key.class.inspect}"
|
|
end
|
|
else
|
|
raise Exception, "Attempted to access a defunct structure"
|
|
end
|
|
result
|
|
end
|
|
#
|
|
def <<(*args)
|
|
if args.size > 0
|
|
args.each do |item|
|
|
self[(@element_links.size)] = item
|
|
end
|
|
end
|
|
self
|
|
end
|
|
#
|
|
def push(*args)
|
|
if args.size > 0
|
|
args.each do |item|
|
|
self << item
|
|
end
|
|
end
|
|
self
|
|
end
|
|
#
|
|
def pop()
|
|
self.delete_at((@element_links.size - 1))
|
|
end
|
|
#
|
|
def shift()
|
|
self.delete_at(0)
|
|
end
|
|
#
|
|
def insert(the_index=nil, the_object=nil)
|
|
# resovle the_index : the_index < 0 : the_index = (size - the_index)
|
|
# if the_index == 0 : @element_links.unshift(nil-record); self[0] = the_object
|
|
# if the_index > size-1 : push(the_object)
|
|
# else: @element_links.insert(the_index, nil-record); self[(the_index)] = the_object
|
|
# vette the_object --> persistable?
|
|
if ::GxG::Database::persistable?(the_object)
|
|
new_value = {
|
|
:linkid => nil,
|
|
:content => nil,
|
|
:loaded => false,
|
|
:state => 0,
|
|
:record => {
|
|
:parent_uuid => @uuid.to_s,
|
|
:ordinal => 0,
|
|
:version => ::BigDecimal.new("0.0"),
|
|
:element => "element_boolean",
|
|
:element_boolean => -1,
|
|
:element_integer => 0,
|
|
:element_float => 0.0,
|
|
:element_bigdecimal => ::BigDecimal.new("0.0"),
|
|
:element_datetime => ::DateTime.now,
|
|
:time_offset => 0.0,
|
|
:time_prior => 0.0,
|
|
:time_after => 0.0,
|
|
:length => 0,
|
|
:element_text => "",
|
|
:element_text_uuid => "",
|
|
:element_binary_uuid => "",
|
|
:element_array_uuid => "",
|
|
:element_hash_uuid => ""
|
|
}
|
|
}
|
|
the_index = the_index.to_i
|
|
if the_index < 0
|
|
the_index = (self.size - the_index)
|
|
end
|
|
if the_index == 0
|
|
new_value[:record][:ordinal] = the_index
|
|
@element_links.unshift(new_value)
|
|
refresh_ordinals
|
|
self[0] = the_object
|
|
else
|
|
if the_index > (self.size - 1)
|
|
self.push(the_object)
|
|
else
|
|
new_value[:record][:ordinal] = the_index
|
|
@element_links.insert(the_index, new_value)
|
|
refresh_ordinals
|
|
self[(the_index)] = the_object
|
|
end
|
|
end
|
|
end
|
|
self
|
|
end
|
|
# ???? def insert - ::GxG::Database::persistable?(the_object)
|
|
def unshift(the_object=nil)
|
|
self.insert(0,the_object)
|
|
end
|
|
#
|
|
def swap(first_index=nil, last_index=nil)
|
|
result = false
|
|
if first_index && last_index
|
|
if (0..(self.size - 1)).include?(first_index.to_i) && (0..(self.size - 1)).include?(last_index.to_i)
|
|
if first_index.to_i != last_index.to_i
|
|
record = @element_links[(first_index)]
|
|
@element_links[(first_index)] = @element_links[(last_index)]
|
|
@element_links[(last_index)] = record
|
|
result = true
|
|
end
|
|
end
|
|
end
|
|
result
|
|
end
|
|
#
|
|
def include?(the_value)
|
|
result = false
|
|
if the_value.is_a?(::OpenStruct)
|
|
the_value = the_value.table
|
|
end
|
|
@element_links.each do |element|
|
|
if element[:content] == the_value
|
|
result = true
|
|
break
|
|
end
|
|
end
|
|
result
|
|
end
|
|
#
|
|
def find_index(the_value)
|
|
result = nil
|
|
if the_value.is_a?(::OpenStruct)
|
|
the_value = the_value.table
|
|
end
|
|
@element_links.each_with_index do |element, indexer|
|
|
if element[:content] == the_value
|
|
result = indexer
|
|
break
|
|
end
|
|
end
|
|
result
|
|
end
|
|
#
|
|
def export(options={:exclude_file_segments=>false})
|
|
if self.alive?
|
|
exclude_file_segments = (options[:exclude_file_segments] || false)
|
|
if options[:clone] == true
|
|
# Review : why are cloned objects unconstrained? sync issues??
|
|
result = {:type => :element_array, :uuid => GxG::uuid_generate.to_s.to_sym, :title => @title.clone, :version => @version.clone, :content => []}
|
|
else
|
|
result = {:type => :element_array, :uuid => @uuid.clone, :title => @title.clone, :version => @version.clone, :constraint => @constraint.clone, :content => []}
|
|
end
|
|
export_db = [{:parent => nil, :parent_selector => nil, :object => self, :record => result}]
|
|
children_of = Proc.new do |the_parent=nil|
|
|
list = []
|
|
export_db.each do |node|
|
|
if node[:parent].object_id == the_parent.object_id
|
|
list << node
|
|
end
|
|
end
|
|
list
|
|
end
|
|
# Build up export_db:
|
|
self.search do |the_value, the_selector, the_container|
|
|
if the_value.is_a?(::GxG::Database::DetachedHash)
|
|
if options[:clone] == true
|
|
the_uuid = GxG::uuid_generate.to_s.to_sym
|
|
else
|
|
the_uuid = the_value.uuid().clone
|
|
end
|
|
if (exclude_file_segments == true) && (the_selector == :file_segments || the_selector == :segments || the_selector == :portions)
|
|
export_db << {:parent => the_container, :parent_selector => the_selector.clone, :object => {}, :record => {:type => :element_hash, :uuid => the_uuid, :title => the_value.title().clone, :version => the_value.version().clone, :format => the_value.format().clone, :content => {}}}
|
|
else
|
|
export_db << {:parent => the_container, :parent_selector => the_selector.clone, :object => the_value, :record => {:type => :element_hash, :uuid => the_uuid, :title => the_value.title().clone, :version => the_value.version().clone, :format => the_value.format().clone, :content => {}}}
|
|
end
|
|
end
|
|
if the_value.is_a?(::GxG::Database::DetachedArray)
|
|
if options[:clone] == true
|
|
the_uuid = GxG::uuid_generate.to_s.to_sym
|
|
else
|
|
the_uuid = the_value.uuid().clone
|
|
end
|
|
if (exclude_file_segments == true) && (the_selector == :file_segments || the_selector == :segments || the_selector == :portions)
|
|
export_db << {:parent => the_container, :parent_selector => the_selector.clone, :object => [], :record => {:type => :element_array, :uuid => the_uuid, :title => the_value.title().clone, :version => the_value.version().clone, :constraint => the_value.constraint().clone, :content => []}}
|
|
else
|
|
export_db << {:parent => the_container, :parent_selector => the_selector.clone, :object => the_value, :record => {:type => :element_array, :uuid => the_uuid, :title => the_value.title().clone, :version => the_value.version().clone, :constraint => the_value.constraint().clone, :content => []}}
|
|
end
|
|
end
|
|
if the_value.is_any?(::GxG::Database::valid_field_classes())
|
|
data_type = GxG::Database::element_table_for_instance(the_value)
|
|
case data_type
|
|
when :element_bigdecimal
|
|
data = the_value.to_s
|
|
when :element_datetime
|
|
data = the_value.iso8601.to_s
|
|
when :element_binary
|
|
data = the_value.to_s.encode64
|
|
when :element_text
|
|
data = the_value.to_s
|
|
else
|
|
data = the_value
|
|
end
|
|
export_db << {:parent => the_container, :parent_selector => the_selector.clone, :object => the_value, :record => {:type => data_type, :version => (the_container.version(the_selector) || 0.0), :content => data}}
|
|
end
|
|
end
|
|
# Collect children export content:
|
|
link_db = [(export_db[0])]
|
|
while link_db.size > 0 do
|
|
entry = link_db.shift
|
|
children_of.call(entry[:object]).each do |the_child|
|
|
entry[:record][:content][(the_child[:parent_selector])] = the_child[:record]
|
|
if the_child[:object].is_any?(::GxG::Database::DetachedHash, ::GxG::Database::DetachedArray)
|
|
link_db << the_child
|
|
end
|
|
end
|
|
end
|
|
else
|
|
result = nil
|
|
end
|
|
result
|
|
end
|
|
#
|
|
def export_package(options={:exclude_file_segments=>false})
|
|
result = {:formats => {}, :records => []}
|
|
object_record = self.export(options)
|
|
object_record.search do |item,selector,container|
|
|
if selector == :format || selector == :constraint
|
|
if item.to_s.size > 0
|
|
format_uuid = item
|
|
unless result[:formats][(format_uuid.to_s.to_sym)].is_a?(::Hash)
|
|
format_sample = ::GxG::DB[:roles][:formats].format_load({:uuid => format_uuid.to_s.to_sym})
|
|
format_sample[:content] = format_sample[:content].gxg_export()
|
|
result[:formats][(format_uuid.to_s.to_sym)] = format_sample
|
|
end
|
|
end
|
|
end
|
|
end
|
|
result[:records] << object_record
|
|
result
|
|
end
|
|
#
|
|
def first()
|
|
if @element_links.size > 0
|
|
self[0]
|
|
else
|
|
nil
|
|
end
|
|
end
|
|
#
|
|
def last()
|
|
if @element_links.size > 0
|
|
self[(@element_links.size - 1)]
|
|
else
|
|
nil
|
|
end
|
|
end
|
|
#
|
|
def each(&block)
|
|
if block.respond_to?(:call)
|
|
load_element_links
|
|
if @element_links.size > 0
|
|
@element_links.each_index do |index|
|
|
block.call(self[(index)])
|
|
end
|
|
end
|
|
self
|
|
else
|
|
self.to_enum(:each)
|
|
end
|
|
end
|
|
#
|
|
def each_index(&block)
|
|
if block.respond_to?(:call)
|
|
load_element_links
|
|
if @element_links.size > 0
|
|
@element_links.each_index do |index|
|
|
block.call(index)
|
|
end
|
|
end
|
|
self
|
|
else
|
|
self.to_enum(:each_index)
|
|
end
|
|
end
|
|
#
|
|
def each_with_index(offset=0,&block)
|
|
if block.respond_to?(:call)
|
|
load_element_links
|
|
if @element_links.size > 0
|
|
@element_links.to_enum(:each).with_index(offset).each do |entry, index|
|
|
block.call(self[(index)], index)
|
|
end
|
|
end
|
|
self
|
|
else
|
|
self.to_enum(:each_with_index,offset)
|
|
end
|
|
end
|
|
#
|
|
def iterative(options={:include_inactive => true}, &block)
|
|
result = []
|
|
visit = Proc.new do |the_node=nil, accumulator=[]|
|
|
node_stack = []
|
|
if the_node
|
|
node_stack << ({:parent => nil, :parent_selector => nil, :object => (the_node)})
|
|
while (node_stack.size > 0) do
|
|
a_node = node_stack.shift
|
|
#
|
|
if a_node[:object].is_a?(::GxG::Database::DetachedHash)
|
|
if a_node[:object].alive?
|
|
a_node[:object].each_pair do |the_key, the_value|
|
|
node_stack << ({:parent => a_node[:object], :parent_selector => the_key, :object => the_value})
|
|
end
|
|
else
|
|
if options[:include_inactive]
|
|
accumulator << a_node
|
|
end
|
|
end
|
|
end
|
|
if a_node[:object].is_a?(::GxG::Database::DetachedArray)
|
|
if a_node[:object].alive?
|
|
a_node[:object].each_with_index do |the_value, the_index|
|
|
node_stack << ({:parent => a_node[:object], :parent_selector => the_index, :object => the_value})
|
|
end
|
|
else
|
|
if options[:include_inactive]
|
|
accumulator << a_node
|
|
end
|
|
end
|
|
end
|
|
#
|
|
if a_node.alive? || options[:include_inactive]
|
|
accumulator << a_node
|
|
end
|
|
end
|
|
end
|
|
accumulator
|
|
end
|
|
#
|
|
children_of = Proc.new do |the_db=[], the_parent=nil|
|
|
list = []
|
|
the_db.each do |node|
|
|
if node[:parent].object_id == the_parent.object_id
|
|
list << node
|
|
end
|
|
end
|
|
list
|
|
end
|
|
#
|
|
begin
|
|
database = visit.call(self,[])
|
|
link_db = children_of.call(database, self)
|
|
if block.respond_to?(:call)
|
|
while (link_db.size > 0) do
|
|
entry = link_db.shift
|
|
unless entry[:object].object_id == self.object_id
|
|
# calls with parameters: the_value, the_key/the_index (the_selector), the_container
|
|
raw_result = block.call(entry[:object], entry[:parent_selector], entry[:parent])
|
|
if raw_result
|
|
result << raw_result
|
|
end
|
|
end
|
|
if entry[:object].object_id != nil.object_id
|
|
children = children_of.call(database, entry[:object])
|
|
children.each do |child|
|
|
link_db << child
|
|
end
|
|
end
|
|
end
|
|
end
|
|
#
|
|
rescue Exception => the_error
|
|
log_error({:error => the_error, :parameters => {}})
|
|
end
|
|
#
|
|
result
|
|
end
|
|
#
|
|
def process!(options={:include_inactive => true}, &block)
|
|
self.iterative(options, &block)
|
|
self
|
|
end
|
|
#
|
|
def search(options={:include_inactive => true}, &block)
|
|
results = []
|
|
if block.respond_to?(:call)
|
|
results = self.iterative(options, &block)
|
|
end
|
|
results
|
|
end
|
|
#
|
|
def paths_to(the_object=nil,base_path="")
|
|
# new idea here:
|
|
if the_object.is_a?(::OpenStruct)
|
|
the_object = the_object.table
|
|
end
|
|
search_results = []
|
|
unless base_path[0] == "/"
|
|
base_path = ("/" << base_path)
|
|
end
|
|
if base_path.size > 1
|
|
path_stack = base_path.split("/")[1..-1].reverse
|
|
else
|
|
path_stack = []
|
|
end
|
|
origin = self.get_at_path(base_path)
|
|
container_stack = [{:selector => nil, :container => origin}]
|
|
find_container = Proc.new do |the_container|
|
|
result = nil
|
|
container_stack.each_with_index do |entry, index|
|
|
if entry[:container] == the_container
|
|
result = entry
|
|
break
|
|
end
|
|
end
|
|
result
|
|
end
|
|
last_container = origin
|
|
found = false
|
|
# tester = {:a=>1, :b=>2, :c=>[0, 5], :testing=>{:d=>4.0, :e=>0.9, :f => nil}}
|
|
if origin.is_any?(::Hash, ::Array, ::Struct, ::GxG::Database::DetachedHash, ::GxG::Database::DetachedArray)
|
|
origin.process! do |the_value, selector, container|
|
|
if last_container.object_id != container.object_id
|
|
container_record = find_container.call(container)
|
|
if container_record
|
|
path_stack = container_record[:prefix].split("/").reverse
|
|
if path_stack.size == 0
|
|
path_stack << ""
|
|
end
|
|
end
|
|
last_container = container
|
|
end
|
|
if selector.is_a?(Symbol)
|
|
safe_key = (":" + selector.to_s)
|
|
else
|
|
safe_key = selector.to_s
|
|
end
|
|
safe_key.gsub!("/","%2f")
|
|
path_stack.unshift(safe_key)
|
|
# compare the_value
|
|
found = false
|
|
if (the_value == the_object)
|
|
found = true
|
|
end
|
|
if found
|
|
search_results << ("/" << path_stack.reverse.join("/"))
|
|
end
|
|
#
|
|
if the_value.is_any?(::Array, ::Hash, ::Struct, ::GxG::Database::DetachedHash, ::GxG::Database::DetachedArray)
|
|
container_stack.unshift({:selector => selector, :container => the_value, :prefix => (path_stack.reverse.join("/"))})
|
|
end
|
|
path_stack.shift
|
|
#
|
|
nil
|
|
end
|
|
else
|
|
search_results << ("/" << path_stack.join("/"))
|
|
end
|
|
search_results
|
|
end
|
|
#
|
|
def get_at_path(the_path="/")
|
|
# /^(?:[0-9])*[0-9](?:[0-9])*$/ = nil if an alpha present there, else 0 only numeric
|
|
# Attribution : http://stackoverflow.com/questions/1240674/regex-match-a-string-containing-numbers-and-letters-but-not-a-string-of-just-nu
|
|
#
|
|
# if ":" detected do: (str.gsub("%2f","/").to_sym) as key else (str.gsub("%2f","/"))
|
|
result = nil
|
|
if the_path == "/"
|
|
result = self
|
|
else
|
|
object_stack = [(self)]
|
|
path_stack = the_path.split("/")
|
|
path_stack.to_enum.each do |path_element|
|
|
element = nil
|
|
if path_element.size > 0
|
|
if (path_element =~ /^(?:[0-9])*[0-9](?:[0-9])*$/) == 0
|
|
element = path_element.to_i
|
|
else
|
|
element = path_element
|
|
element.gsub!("%2f","/")
|
|
if element[0] == ":"
|
|
element = element[(1..-1)].to_sym
|
|
end
|
|
end
|
|
end
|
|
if element
|
|
result = object_stack.first[(element)]
|
|
if result.is_a?(NilClass)
|
|
break
|
|
else
|
|
object_stack.unshift(result)
|
|
end
|
|
else
|
|
# ignore double slashes? '//'
|
|
# break
|
|
end
|
|
end
|
|
end
|
|
result
|
|
end
|
|
#
|
|
def set_at_path(the_path="/",the_value=nil)
|
|
result = nil
|
|
if the_path != "/"
|
|
container = self.get_at_path(::File::dirname(the_path))
|
|
if container
|
|
raw_selector = ::File::basename(the_path)
|
|
selector = nil
|
|
if raw_selector.size > 0
|
|
if (raw_selector =~ /^(?:[0-9])*[0-9](?:[0-9])*$/) == 0
|
|
selector = raw_selector.to_i
|
|
else
|
|
selector = raw_selector
|
|
selector.gsub!("%2f","/")
|
|
if selector[0] == ":"
|
|
selector = selector[(1..-1)].to_sym
|
|
end
|
|
end
|
|
end
|
|
if selector
|
|
container[(selector)] = the_value
|
|
result = container[(selector)]
|
|
else
|
|
# ignore double slashes? '//'
|
|
# break
|
|
end
|
|
#
|
|
end
|
|
end
|
|
result
|
|
end
|
|
#
|
|
def unpersist()
|
|
result = []
|
|
if self.alive?
|
|
#
|
|
export_db = [{:parent => nil, :parent_selector => nil, :object => self, :record => result}]
|
|
children_of = Proc.new do |the_parent=nil|
|
|
list = []
|
|
export_db.each do |node|
|
|
if node[:parent].object_id == the_parent.object_id
|
|
list << node
|
|
end
|
|
end
|
|
list
|
|
end
|
|
# Build up export_db:
|
|
self.search do |the_value, the_selector, the_container|
|
|
if the_value.is_a?(::GxG::Database::DetachedHash)
|
|
export_db << {:parent => the_container, :parent_selector => the_selector.clone, :object => the_value, :record => {}}
|
|
else
|
|
if the_value.is_a?(::GxG::Database::DetachedArray)
|
|
export_db << {:parent => the_container, :parent_selector => the_selector.clone, :object => the_value, :record => []}
|
|
else
|
|
export_db << {:parent => the_container, :parent_selector => the_selector.clone, :object => the_value, :record => the_value}
|
|
end
|
|
end
|
|
end
|
|
# Collect children export content:
|
|
link_db =[(export_db[0])]
|
|
while link_db.size > 0 do
|
|
entry = link_db.shift
|
|
children_of.call(entry[:object]).each do |the_child|
|
|
entry[:record][(the_child[:parent_selector])] = the_child[:record]
|
|
if the_child[:object].is_any?(::GxG::Database::DetachedHash, ::GxG::Database::DetachedArray)
|
|
link_db << the_child
|
|
end
|
|
end
|
|
end
|
|
#
|
|
end
|
|
result
|
|
end
|
|
#
|
|
end
|
|
#
|
|
class PersistedArray
|
|
#
|
|
private
|
|
#
|
|
def element_destroy(indexer=nil)
|
|
# Destroy database property record, but leave in-memory property intact - for now. (preserves key-ordinal position)
|
|
result = false
|
|
if indexer
|
|
if @element_links[(indexer)]
|
|
element = @element_links[(indexer)]
|
|
# ### Delete sub-object linked to.
|
|
the_table = nil
|
|
the_uuid = nil
|
|
if element[:record][:element_text_uuid].size > 0
|
|
the_table = :element_text
|
|
the_uuid = property[:record][:element_text_uuid]
|
|
end
|
|
if element[:record][:element_binary_uuid].size > 0
|
|
the_table = :element_binary
|
|
the_uuid = element[:record][:element_binary_uuid]
|
|
end
|
|
if element[:record][:element_array_uuid].size > 0
|
|
the_table = :element_array
|
|
the_uuid = element[:record][:element_array_uuid]
|
|
end
|
|
if element[:record][:element_hash_uuid].size > 0
|
|
the_table = :element_hash
|
|
the_uuid = element[:record][:element_hash_uuid]
|
|
end
|
|
case the_table
|
|
when :element_text
|
|
the_temp_record = @db_address[:database].connector()[:element_text].select(:dbid).where({:uuid => the_uuid}).first
|
|
if the_temp_record
|
|
@db_address[:database].element_destroy(@credential, :element_text, the_temp_record[:dbid])
|
|
end
|
|
when :element_binary
|
|
the_temp_record = @db_address[:database].connector()[:element_binary].select(:dbid).where({:uuid => the_uuid}).first
|
|
if the_temp_record
|
|
@db_address[:database].element_destroy(@credential, :element_binary, the_temp_record[:dbid])
|
|
end
|
|
when :element_array, :element_hash
|
|
@db_address[:database].destroy_by_uuid(@credential, the_uuid)
|
|
end
|
|
# ### Delete property record.
|
|
@db_address[:database].connector()[:array_elements].filter({:dbid => element[:linkid]}).delete
|
|
result = true
|
|
end
|
|
end
|
|
result
|
|
end
|
|
# Note: property_read handled by load_property_links
|
|
def element_write(indexer=nil)
|
|
result = false
|
|
if indexer
|
|
if @element_links[(indexer)]
|
|
element = @element_links[(indexer)]
|
|
# Save out text and binary pages if needed.
|
|
if element[:content].is_a?(::String)
|
|
if element[:content].size > 256
|
|
unless element[:record][:element_text_uuid].size > 0
|
|
# create text header
|
|
the_uuid = ::GxG::uuid_generate
|
|
while @db_address[:database].connector()[:element_text].filter({:uuid => the_uuid.to_s}).count > 0 do
|
|
the_uuid = ::GxG::uuid_generate
|
|
end
|
|
element[:record][:length] = element[:content].size
|
|
the_dbid = @db_address[:database].connector()[:element_text].insert({:uuid => the_uuid.to_s, :version => element[:record][:version], :length => element[:record][:length]})
|
|
#
|
|
element[:record][:element_text_uuid] = the_uuid
|
|
end
|
|
end
|
|
else
|
|
if element[:content].is_a?(::GxG::ByteArray)
|
|
unless element[:record][:element_binary_uuid].size > 0
|
|
# create binary header
|
|
the_uuid = ::GxG::uuid_generate
|
|
while @db_address[:database].connector()[:element_binary].filter({:uuid => the_uuid.to_s}).count > 0 do
|
|
the_uuid = ::GxG::uuid_generate
|
|
end
|
|
element[:record][:length] = element[:content].size
|
|
# format field??
|
|
the_dbid = @db_address[:database].connector()[:element_binary].insert({:uuid => the_uuid.to_s, :version => element[:record][:version], :length => element[:record][:length]})
|
|
#
|
|
element[:record][:element_binary_uuid] = the_uuid
|
|
end
|
|
end
|
|
end
|
|
# Store text pages
|
|
if element[:record][:element_text_uuid].size > 0
|
|
header_record = @db_address[:database].connector()[:element_text].filter({:uuid => element[:record][:element_text_uuid].to_s}).first
|
|
if header_record
|
|
old_segments = []
|
|
@db_address[:database].connector()[:text_page].filter({:parent_uuid => header_record[:uuid].to_s}).order(:ordinal).each do |entry|
|
|
old_segments << entry[:dbid]
|
|
end
|
|
if element[:content].size == 0
|
|
# delete all text_pages if count > 0
|
|
if old_segments.size > 0
|
|
@db_address[:database].connector()[:text_page].filter({:parent_uuid => (header_record[:uuid])}).order(:ordinal).delete
|
|
end
|
|
else
|
|
new_segments = ::GxG::apportioned_ranges(element[:content].size, 4096)
|
|
if old_segments.size > new_segments.size
|
|
the_count = old_segments.size
|
|
else
|
|
the_count = new_segments.size
|
|
end
|
|
manifest = []
|
|
(0..(the_count - 1)).each do |the_ordinal|
|
|
if new_segments[(the_ordinal)] and old_segments[(the_ordinal)]
|
|
#overwrite with new segment range
|
|
manifest << {:operation => :overwrite, :dbid => (old_segments[(the_ordinal)]), :ordinal => (the_ordinal), :portion => (new_segments[(the_ordinal)])}
|
|
else
|
|
if new_segments[(the_ordinal)]
|
|
# create new segment at this ordinal
|
|
manifest << {:operation => :create, :ordinal => (the_ordinal), :portion => (new_segments[(the_ordinal)])}
|
|
else
|
|
# delete old segment
|
|
manifest << {:operation => :delete, :dbid => (old_segments[(the_ordinal)])}
|
|
end
|
|
end
|
|
end
|
|
#
|
|
manifest.each do |action|
|
|
case action[:operation]
|
|
when :overwrite
|
|
@db_address[:database].element_update(:text_page,{:dbid => action[:dbid]},{:parent_uuid => header_record[:uuid], :ordinal => action[:ordinal], :length => element[:content][(action[:portion])].size, :content => element[:content][(action[:portion])]})
|
|
# @db_address[:database].connector()[:text_page].filter({:dbid => (action[:dbid])}).update({:ordinal => (action[:ordinal]), :length => (@content[(action[:portion])].size), :content => (@content[(action[:portion])])})
|
|
when :create
|
|
new_dbid = @db_address[:database].element_create(:text_page,{:parent_uuid => header_record[:uuid], :ordinal => action[:ordinal], :length => element[:content][(action[:portion])].size, :content => element[:content][(action[:portion])]})
|
|
# @db_address[:database].connector()[:text_page].insert({:parent_uuid => (record[:uuid]), :ordinal => (action[:ordinal]), :length => (@content[(action[:portion])].size), :content => (@content[(action[:portion])])})
|
|
when :delete
|
|
@db_address[:database].element_destroy(@credential,:text_page,action[:dbid])
|
|
# @db_address[:database].connector()[:text_page].filter({:dbid => (action[:dbid])}).delete
|
|
end
|
|
end
|
|
#
|
|
end
|
|
end
|
|
else
|
|
if element[:record][:element_binary_uuid].size > 0
|
|
header_record = @db_address[:database].connector()[:element_binary].filter({:uuid => element[:record][:element_binary_uuid].to_s}).first
|
|
if header_record
|
|
old_segments = []
|
|
@db_address[:database].connector()[:binary_page].filter({:parent_uuid => header_record[:uuid].to_s}).order(:ordinal).each do |entry|
|
|
old_segments << entry[:dbid]
|
|
end
|
|
if element[:content].size == 0
|
|
# delete all text_pages if count > 0
|
|
if old_segments.size > 0
|
|
@db_address[:database].connector()[:binary_page].filter({:parent_uuid => (header_record[:uuid])}).order(:ordinal).delete
|
|
end
|
|
else
|
|
new_segments = ::GxG::apportioned_ranges(element[:content].size, 65536)
|
|
if old_segments.size > new_segments.size
|
|
the_count = old_segments.size
|
|
else
|
|
the_count = new_segments.size
|
|
end
|
|
manifest = []
|
|
(0..(the_count - 1)).each do |the_ordinal|
|
|
if new_segments[(the_ordinal)] and old_segments[(the_ordinal)]
|
|
#overwrite with new segment range
|
|
manifest << {:operation => :overwrite, :dbid => (old_segments[(the_ordinal)]), :ordinal => (the_ordinal), :portion => (new_segments[(the_ordinal)])}
|
|
else
|
|
if new_segments[(the_ordinal)]
|
|
# create new segment at this ordinal
|
|
manifest << {:operation => :create, :ordinal => (the_ordinal), :portion => (new_segments[(the_ordinal)])}
|
|
else
|
|
# delete old segment
|
|
manifest << {:operation => :delete, :dbid => (old_segments[(the_ordinal)])}
|
|
end
|
|
end
|
|
end
|
|
#
|
|
manifest.each do |action|
|
|
case action[:operation]
|
|
when :overwrite
|
|
@db_address[:database].element_update(:binary_page,{:dbid => action[:dbid]},{:parent_uuid => header_record[:uuid], :ordinal => action[:ordinal], :length => element[:content][(action[:portion])].size, :content => element[:content][(action[:portion])]})
|
|
# @db_address[:database].connector()[:text_page].filter({:dbid => (action[:dbid])}).update({:ordinal => (action[:ordinal]), :length => (@content[(action[:portion])].size), :content => (@content[(action[:portion])])})
|
|
when :create
|
|
new_dbid = @db_address[:database].element_create(:binary_page,{:parent_uuid => header_record[:uuid], :ordinal => action[:ordinal], :length => element[:content][(action[:portion])].size, :content => element[:content][(action[:portion])]})
|
|
# @db_address[:database].connector()[:text_page].insert({:parent_uuid => (record[:uuid]), :ordinal => (action[:ordinal]), :length => (@content[(action[:portion])].size), :content => (@content[(action[:portion])])})
|
|
when :delete
|
|
@db_address[:database].element_destroy(@credential,:binary_page,action[:dbid])
|
|
# @db_address[:database].connector()[:text_page].filter({:dbid => (action[:dbid])}).delete
|
|
end
|
|
end
|
|
#
|
|
end
|
|
end
|
|
end
|
|
end
|
|
# ### Create new property record if missing: otherwise just update it.
|
|
if element[:linkid] == nil || element[:linkid] == 0
|
|
element[:linkid] = @db_address[:database].connector()[:array_elements].insert(element[:record])
|
|
else
|
|
@db_address[:database].connector()[:array_elements].filter({:dbid => element[:linkid]}).update(element[:record])
|
|
end
|
|
#
|
|
element[:state] = element[:content].hash
|
|
result = true
|
|
end
|
|
end
|
|
result
|
|
end
|
|
#
|
|
def load_element_links
|
|
#
|
|
result = true
|
|
begin
|
|
if @db_address
|
|
if @db_address[:database].is_a?(::GxG::Database::Database)
|
|
if @db_address[:database].open?()
|
|
new_links = []
|
|
the_records = @db_address[:database].connector()[:array_elements].filter({:parent_uuid => @uuid.to_s}).order(:ordinal)
|
|
the_records.each_with_index do |entry, indexer|
|
|
# (element indexer) => {:linkid => 0, :content => nil, :loaded => false, :state => 0, :record => {}}
|
|
new_links[(indexer)] = {:linkid => entry.delete(:dbid), :content => nil, :loaded => false, :state => 0, :record => entry}
|
|
# Load indicated :content
|
|
case new_links[(indexer)][:record][:element]
|
|
when "element_boolean"
|
|
case new_links[(indexer)][:record][:element_boolean]
|
|
when -1
|
|
new_links[(indexer)][:content] = nil
|
|
new_links[(indexer)][:loaded] = true
|
|
when 0
|
|
new_links[(indexer)][:content] = false
|
|
new_links[(indexer)][:loaded] = true
|
|
when 1
|
|
new_links[(indexer)][:content] = true
|
|
new_links[(indexer)][:loaded] = true
|
|
end
|
|
when "element_integer"
|
|
new_links[(indexer)][:content] = new_links[(indexer)][:record][:element_integer]
|
|
new_links[(indexer)][:loaded] = true
|
|
when "element_float"
|
|
new_links[(indexer)][:content] = new_links[(indexer)][:record][:element_float]
|
|
new_links[(indexer)][:loaded] = true
|
|
when "element_bigdecimal"
|
|
new_links[(indexer)][:content] = ::BigDecimal.new(new_links[(indexer)][:record][:element_bigdecimal].to_s)
|
|
new_links[(indexer)][:loaded] = true
|
|
when "element_datetime"
|
|
new_links[(indexer)][:content] = new_links[(indexer)][:record][:element_datetime]
|
|
if new_links[(indexer)][:content].is_a?(::Time)
|
|
new_links[(indexer)][:content] = new_links[(indexer)][:content].to_datetime()
|
|
end
|
|
new_links[(indexer)][:loaded] = true
|
|
when "element_text"
|
|
if new_links[(indexer)][:record][:element_text_uuid].size > 0
|
|
# Load full text content from pages
|
|
new_links[(indexer)][:content] = ""
|
|
@db_address[:database].connector()[:text_page].filter({:parent_uuid => new_links[(indexer)][:record][:element_text_uuid].to_s}).order(:ordinal).each do |text_page|
|
|
new_links[(indexer)][:content] << text_page[:content]
|
|
end
|
|
else
|
|
new_links[(indexer)][:content] = new_links[(indexer)][:record][:element_text]
|
|
end
|
|
new_links[(indexer)][:loaded] = true
|
|
when "element_binary"
|
|
# Load binary data
|
|
new_links[(indexer)][:content] = ::GxG::ByteArray.new
|
|
new_links[(indexer)][:loaded] = false
|
|
# Review : support on-read segment loading and element unloading. (thinking of large binary files here)
|
|
when "element_array"
|
|
# Load PersistedArray
|
|
new_links[(indexer)][:content] = @db_address[:database].retrieve_by_uuid(new_links[(indexer)][:record][:element_array_uuid].to_s.to_sym, @credential, (@reservation || @delegate))
|
|
if new_links[(indexer)][:content].is_a?(::GxG::Database::PersistedArray)
|
|
new_links[(indexer)][:loaded] = true
|
|
new_links[(indexer)][:state] = new_links[(indexer)][:content].hash
|
|
new_links[(indexer)][:content].set_parent(self)
|
|
else
|
|
new_links[(indexer)][:loaded] = false
|
|
end
|
|
when "element_hash"
|
|
# Load PersistedHash
|
|
new_links[(indexer)][:content] = @db_address[:database].retrieve_by_uuid(new_links[(indexer)][:record][:element_hash_uuid].to_s.to_sym, @credential, (@reservation || @delegate))
|
|
if new_links[(indexer)][:content].is_a?(::GxG::Database::PersistedHash)
|
|
new_links[(indexer)][:loaded] = true
|
|
new_links[(indexer)][:state] = new_links[(indexer)][:content].hash
|
|
new_links[(indexer)][:content].set_parent(self)
|
|
else
|
|
new_links[(indexer)][:loaded] = false
|
|
end
|
|
end
|
|
end
|
|
@element_links = new_links
|
|
else
|
|
raise Exception, "Database not available"
|
|
end
|
|
else
|
|
raise Exception, "Invalid Database object"
|
|
end
|
|
else
|
|
# Deactivated
|
|
result = false
|
|
end
|
|
rescue Exception => the_error
|
|
result = false
|
|
log_error({:error => the_error})
|
|
end
|
|
result
|
|
end
|
|
#
|
|
def refresh_ordinals()
|
|
if self.alive?
|
|
if @db_address[:database].open?
|
|
@element_links.each_with_index do |the_key, ordinal|
|
|
@element_links[(ordinal)][:record][:ordinal] = ordinal
|
|
@db_address[:database].connector()[:array_elements].filter({:dbid => @element_links[(ordinal)][:linkid]}).update({:ordinal => (ordinal)})
|
|
end
|
|
end
|
|
end
|
|
end
|
|
#
|
|
public
|
|
#
|
|
def emit_structures(preference=false)
|
|
@as_structures = preference
|
|
preference
|
|
end
|
|
# Supplimental Supports
|
|
def element_byte_map(class_filter = ::GxG::ByteArray)
|
|
result = []
|
|
manifest = []
|
|
@element_links.each_with_index do |record, index|
|
|
element_type = nil
|
|
if class_filter
|
|
if record[:content].is_a?(class_filter)
|
|
element_type = @db_address[:database].element_table_for_instance(record[:content]).to_s
|
|
end
|
|
else
|
|
element_type = @db_address[:database].element_table_for_instance(record[:content]).to_s
|
|
end
|
|
if element_type
|
|
manifest << {:index => index, :type => element_type}
|
|
end
|
|
end
|
|
manifest.each do |reference|
|
|
record = @db_address[:database].connector()[:array_elements].filter({:parent_uuid => @uuid.to_s, :element => reference[:type], :ordinal => reference[:index]}).first
|
|
if record
|
|
result << {:index => record[:ordinal], :size => record[:length]}
|
|
end
|
|
end
|
|
result
|
|
end
|
|
# Permission Management:
|
|
def get_permissions()
|
|
@permission.clone
|
|
end
|
|
#
|
|
def set_permissions(credential=nil, the_permission=nil)
|
|
if self.alive?
|
|
if credential.is_a?(::Hash) && the_permission.is_a?(::Hash)
|
|
if credential[:user]
|
|
if credential[:user] == "public" || credential[:user] == "Public"
|
|
credential = "00000000-0000-4000-0000-000000000000"
|
|
else
|
|
credential = (@db_address[:database].user_fetch({:user_id => credential[:user].to_s}) || {})[:uuid]
|
|
end
|
|
if credential
|
|
credential = credential.to_s.to_sym
|
|
end
|
|
else
|
|
if credential[:group]
|
|
credential = @db_address[:database].group_credential(credential)
|
|
else
|
|
credential = nil
|
|
end
|
|
end
|
|
else
|
|
if credential.is_a?(::Hash) && the_permission == nil
|
|
the_permission = credential
|
|
credential = @credential
|
|
else
|
|
unless credential
|
|
credential = @credential
|
|
end
|
|
end
|
|
end
|
|
if the_permission.is_a?(::Hash) && ::GxG::valid_uuid?(credential)
|
|
manifest = []
|
|
structures = [{:table => @db_address[:table], :dbid => @db_address[:dbid]}]
|
|
while structures.size > 0 do
|
|
entry = structures[0]
|
|
@db_address[:database].element_manifest(entry[:table],entry[:dbid]).each do |record|
|
|
if [:element_hash, :element_array].include?(record[:table])
|
|
unless structures.include?(record)
|
|
structures << record
|
|
end
|
|
else
|
|
# Review - only set/get/check permissions on persisted arrays/hashes
|
|
# unless manifest.include?(record)
|
|
# manifest << record
|
|
# end
|
|
end
|
|
end
|
|
manifest << structures.shift
|
|
end
|
|
manifest.each do |entry|
|
|
@db_address[:database].assign_element_permission(entry[:table], entry[:dbid], credential, the_permission)
|
|
end
|
|
#
|
|
true
|
|
else
|
|
log_error({:error => Exception.new("You MUST provide a valid permissions Hash."), :parameters => {:credential => credential, :permission => the_permission}})
|
|
false
|
|
end
|
|
end
|
|
end
|
|
#
|
|
def reservation()
|
|
if self.alive?
|
|
if @reservation.is_any?(::String, ::Symbol)
|
|
@reservation.clone
|
|
end
|
|
end
|
|
end
|
|
#
|
|
def write_permission?()
|
|
@permission[:write]
|
|
end
|
|
#
|
|
def write_reserved?()
|
|
if @reservation or @delegate
|
|
true
|
|
else
|
|
false
|
|
end
|
|
end
|
|
#
|
|
def release_reservation()
|
|
if self.alive?()
|
|
if @reservation
|
|
@db_address[:database].release_element_locks(@reservation)
|
|
@reservation = nil
|
|
end
|
|
if @delegate
|
|
@delegate = nil
|
|
end
|
|
# release write-locks of all sub-items
|
|
@element_links.each_index do |ordinal|
|
|
if @element_links[(ordinal)][:content].is_any?([::GxG::Database::PersistedHash, ::GxG::Database::PersistedArray])
|
|
@element_links[(ordinal)][:content].release_reservation
|
|
end
|
|
end
|
|
end
|
|
true
|
|
end
|
|
#
|
|
def get_reservation()
|
|
result = false
|
|
# Review : Experimental design change - deprecate @delegate use, require entire structure (and sub-structures) to get solid @reservation (all of them) or this fails.
|
|
# Note : keep your structures small as this opens the door for stack-depth exceptions if it is nested too deep. (say 256 or less layers deep??)
|
|
if @reservation
|
|
result = true
|
|
else
|
|
if self.alive?
|
|
if @permission[:write]
|
|
clean_up_list = []
|
|
# Review : efficiency - write locks only apply to PersistedHashes and PersistedArrays so do we need a full manifest??
|
|
the_reservation = @db_address[:database].reserve_element_locks(@credential, (@db_address[:database].element_manifest(@db_address[:table], @db_address[:dbid])), :write)
|
|
if the_reservation
|
|
@element_links.each_index do |ordinal|
|
|
if @element_links[(ordinal)][:content].is_any?([::GxG::Database::PersistedHash, ::GxG::Database::PersistedArray])
|
|
clean_up_list << @element_links[(ordinal)][:content]
|
|
unless @element_links[(ordinal)][:content].get_reservation()
|
|
@db_address[:database].release_element_locks(the_reservation)
|
|
the_reservation = nil
|
|
break
|
|
end
|
|
end
|
|
end
|
|
#
|
|
end
|
|
if the_reservation
|
|
@reservation = the_reservation
|
|
result = true
|
|
else
|
|
clean_up_list.each do |the_object|
|
|
the_object.release_reservation
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
# xxx keep old code for now
|
|
# if (@reservation || @delegate)
|
|
# result = true
|
|
# else
|
|
# if self.alive?
|
|
# if @permission[:write]
|
|
# @reservation = @db_address[:database].reserve_element_locks(@credential, (@db_address[:database].element_manifest(@db_address[:table], @db_address[:dbid])), :write)
|
|
# if @reservation
|
|
# @element_links.each_index do |ordinal|
|
|
# if @element_links[(ordinal)][:content].is_any?([::GxG::Database::PersistedHash, ::GxG::Database::PersistedArray])
|
|
# @element_links[(ordinal)][:content].set_delegate((@reservation || @delegate))
|
|
# end
|
|
# end
|
|
# result = true
|
|
# end
|
|
# #
|
|
# end
|
|
# end
|
|
# end
|
|
# xxx end old code
|
|
result
|
|
end
|
|
#
|
|
def wait_for_reservation(timeout=nil)
|
|
result = true
|
|
the_timeout = Time.now.to_f + (timeout || 30.0).to_f
|
|
until self.get_reservation() == true do
|
|
sleep 1.0
|
|
if Time.now.to_f >= the_timeout
|
|
result = false
|
|
break
|
|
end
|
|
end
|
|
result
|
|
end
|
|
#
|
|
def get_delegate()
|
|
if self.alive?
|
|
if @delegate.is_any?(::String, ::Symbol)
|
|
@delegate.clone
|
|
end
|
|
end
|
|
end
|
|
#
|
|
def set_delegate(the_delegate=nil)
|
|
if self.alive?
|
|
if the_delegate.is_any?([::String, ::Symbol])
|
|
@delegate = the_delegate.to_sym
|
|
end
|
|
end
|
|
end
|
|
#
|
|
def uuid()
|
|
@uuid.clone
|
|
end
|
|
#
|
|
def version(input=nil)
|
|
@version.clone
|
|
end
|
|
#
|
|
def version=(the_version=nil)
|
|
if the_version.is_a?(::Numeric)
|
|
@version = ::BigDecimal.new(the_version.to_s)
|
|
end
|
|
end
|
|
#
|
|
def element_version(index=nil)
|
|
result = 0.0
|
|
if index.is_a?(::Numeric)
|
|
if @element_links[(index)]
|
|
result = @element_links[(index)][:record][:version]
|
|
end
|
|
#
|
|
end
|
|
result
|
|
end
|
|
#
|
|
def set_element_version(element_index, the_version=nil)
|
|
result = false
|
|
if @element_links[(element_index)]
|
|
if the_version.is_a?(::Numeric)
|
|
@element_links[(element_index)][:record][:version] = the_version.to_s("F").to_d
|
|
result = true
|
|
else
|
|
log_warning("Attempted to set version to an invalid version value #{the_version.inspect} for index #{element_index.inspect} on Object #{@uuid.inspect}")
|
|
end
|
|
else
|
|
log_warning("Attempted to set version with an invalid index #{element_index.inspect} on Object #{@uuid.inspect}")
|
|
end
|
|
result
|
|
end
|
|
#
|
|
def increment_version()
|
|
if self.alive?
|
|
if @db_address[:database].open?
|
|
if self.write_reserved?()
|
|
@version += 0.0001
|
|
end
|
|
end
|
|
end
|
|
end
|
|
#
|
|
def save_version()
|
|
@db_address[:database].connector()[:element_array].filter({:dbid => @db_address[:dbid]}).update({:version => @version})
|
|
end
|
|
#
|
|
def set_version(the_version=0.0)
|
|
if self.write_reserved?()
|
|
@version = the_version.to_s("F").to_d
|
|
self.save_version
|
|
end
|
|
end
|
|
#
|
|
def title()
|
|
@title.clone
|
|
end
|
|
#
|
|
def set_title(the_title=nil)
|
|
if self.alive?
|
|
if @db_address[:database].open?
|
|
if self.write_reserved?()
|
|
if the_title
|
|
@title = the_title.to_s[0..256]
|
|
@db_address[:database].connector()[:element_array].filter({:dbid => @db_address[:dbid]}).update({:title => @title})
|
|
self.increment_version
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
alias :title= :set_title
|
|
#
|
|
def set_constraint(format_uuid=nil)
|
|
if self.alive?
|
|
unless @constraint
|
|
if ::GxG::valid_uuid?(format_uuid)
|
|
@constraint = format_uuid.to_sym
|
|
@db_address[:database].connector()[:element_array].filter({:dbid => (@db_address[:dbid])}).update({:constraint => (@constraint.to_s)})
|
|
end
|
|
end
|
|
end
|
|
end
|
|
alias :constraint= :set_constraint
|
|
#
|
|
def clear_constraint()
|
|
if self.alive?
|
|
if @constraint
|
|
@constraint = nil
|
|
@db_address[:database].connector()[:element_array].filter({:dbid => (@db_address[:dbid])}).update({:constraint => ""})
|
|
end
|
|
end
|
|
true
|
|
end
|
|
#
|
|
def constraint()
|
|
@constraint.clone
|
|
end
|
|
#
|
|
def ufs()
|
|
if @constraint
|
|
record = @db_address[:database].format_load({:uuid => @constraint.to_s})
|
|
if record
|
|
record[:ufs]
|
|
else
|
|
""
|
|
end
|
|
else
|
|
""
|
|
end
|
|
end
|
|
#
|
|
def parent()
|
|
@parent
|
|
end
|
|
#
|
|
def set_parent(object=nil)
|
|
if self.alive?
|
|
if object.is_any?([::GxG::Database::PersistedHash, ::GxG::Database::PersistedArray])
|
|
unless @parent
|
|
@parent = object
|
|
end
|
|
end
|
|
end
|
|
end
|
|
#
|
|
def refresh_links()
|
|
if self.alive?()
|
|
unless @db_address[:database].element_in_use?(@db_address[:table], @db_address[:dbid])
|
|
@parent = nil
|
|
end
|
|
end
|
|
end
|
|
#
|
|
def initialize(settings = {}, options={})
|
|
# mount element: {:database => <database>, :uuid => <uuid>, :credential => <uuid>, :delegate => nil/<uuid>, :parent => nil/<an-object>}
|
|
# create element: {:database => <database>, :credential => <uuid>, :delegate => nil/<uuid>, :parent => nil/<an-object>}
|
|
#
|
|
if settings.is_a?(::Hash)
|
|
unless ::GxG::valid_uuid?(settings[:credential])
|
|
raise ArgumentError, "You must supply a valid credential UUID (37 character limit) as a String or Symbol"
|
|
end
|
|
@as_structures = false
|
|
@quick = settings[:quick]
|
|
@credential = settings[:credential].to_sym
|
|
@reservation = nil
|
|
@delegate = settings[:delegate]
|
|
if settings[:parent].is_any?(::GxG::Database::PersistedHash, ::GxG::Database::PersistedArray)
|
|
@parent = settings[:parent]
|
|
else
|
|
@parent = nil
|
|
end
|
|
@constraint = settings[:constraint]
|
|
unless @constraint
|
|
if options[:with_constraint]
|
|
@constraint = options[:with_constraint]
|
|
end
|
|
end
|
|
if settings[:database].is_a?(::GxG::Database::Database)
|
|
if settings[:database].open?()
|
|
the_uuid = settings[:uuid]
|
|
if the_uuid.is_a?(::Symbol)
|
|
the_uuid = the_uuid.to_s
|
|
end
|
|
# TODO: validate uuid pattern
|
|
if settings[:title].is_a?(::String)
|
|
the_title = settings[:title]
|
|
else
|
|
if options[:with_title]
|
|
the_title = options[:with_title]
|
|
else
|
|
the_title = ("Untitled PersistedArray " << (settings[:database].connector()[:element_array].count.to_s))
|
|
end
|
|
end
|
|
unless ::GxG::valid_uuid?(the_uuid)
|
|
# without specifying a uuid, the implied intent is to create a new PersistedArray
|
|
if ::GxG::valid_uuid?(options[:with_uuid])
|
|
the_uuid = options[:with_uuid].to_s
|
|
else
|
|
the_uuid = ::GxG::uuid_generate()
|
|
while ((settings[:database].connector()[:element_array].filter({:uuid => the_uuid}).count > 0) or (settings[:database].connector()[:element_array].filter({:uuid => the_uuid}).count > 0))
|
|
the_uuid = ::GxG::uuid_generate()
|
|
end
|
|
end
|
|
# create blank array record
|
|
new_dbid = settings[:database].connector()[:element_array].insert({:uuid => (the_uuid), :title => (the_title), :constraint => (@constraint.to_s), :version => (options[:with_version] || BigDecimal.new("0.0"))})
|
|
#
|
|
@db_address = {:database => (settings[:database]), :table => :element_array, :dbid => (new_dbid)}
|
|
if @parent
|
|
@permission = @parent.get_permissions()
|
|
# settings[:database].enforce_permission_policy({:action => :extend, :credential => @credential, :source => settings[:parent], :destination => self})
|
|
# settings[:database].extend_element_permissions(settings[:parent].db_address()[:table], settings[:parent].db_address()[:dbid], :element_array, new_dbid)
|
|
else
|
|
# create raw permissions for this element
|
|
@permission = {:execute => false, :rename => true, :move => true, :destroy => true, :create => true, :write => true, :read => true}
|
|
# settings[:database].assign_element_permission(:element_array, new_dbid, @credential, {:execute => false, :rename => true, :move => true, :destroy => true, :create => true, :write => true, :read => true})
|
|
# settings[:database].enforce_permission_policy({:action => :extend, :credential => @credential, :source => self, :destination => self})
|
|
end
|
|
settings[:database].assign_element_permission(:element_array, new_dbid, @credential, @permission)
|
|
end
|
|
# mount according to uuid
|
|
if the_uuid
|
|
# mount
|
|
record = settings[:database].connector()[:element_array].filter({:uuid => (the_uuid)}).first
|
|
if record
|
|
@uuid = the_uuid.to_sym
|
|
@title = record[:title].to_s
|
|
@version = record[:version]
|
|
@db_address = {:database => (settings[:database]), :table => :element_array, :dbid => (record[:dbid])}
|
|
@element_links = []
|
|
if record[:constraint].to_s.size > 0
|
|
@constraint = record[:constraint].to_sym
|
|
else
|
|
@constraint = nil
|
|
end
|
|
unless @permission
|
|
@permission = @db_address[:database].effective_element_permission(@db_address[:table], @db_address[:dbid], @credential)
|
|
end
|
|
# @read_reservation = @db_address[:database].reserve_element_locks(@credential, (@db_address[:database].element_manifest(@db_address[:table], @db_address[:dbid])), :read)
|
|
#
|
|
load_element_links
|
|
#
|
|
else
|
|
raise Exception, "Unable to mount the PersistedArray record"
|
|
end
|
|
else
|
|
raise Exception, "Unable to mount the PersistedArray record"
|
|
end
|
|
#
|
|
else
|
|
raise Exception, "Database not available for storage"
|
|
end
|
|
#
|
|
else
|
|
raise Exception, "Invalid Database object"
|
|
end
|
|
#
|
|
else
|
|
raise ArgumentError, "You must supply a hash of details"
|
|
end
|
|
#
|
|
end
|
|
#
|
|
def inspect()
|
|
# FORNOW: make re-entrant (yes, I know!) Fortunately, circular links are impossible with PersistedArray.
|
|
# TODO: make interative instead of re-entrant.
|
|
result = "(Not Loaded)"
|
|
if @db_address
|
|
if @db_address[:database].element_byte_size(@db_address[:table], @db_address[:dbid]) <= 10485760
|
|
# smaller than 10MB
|
|
result = "["
|
|
@element_links.each_index do |element_index|
|
|
if @element_links[(element_index)].is_a?(::Hash)
|
|
result << @element_links[(element_index)][:content].inspect
|
|
else
|
|
result << "(Not Loaded)"
|
|
end
|
|
unless element_index == (@element_links.size - 1)
|
|
result << ", "
|
|
end
|
|
end
|
|
result << "]"
|
|
else
|
|
result = "(Too Damned Big)"
|
|
end
|
|
#
|
|
end
|
|
result
|
|
end
|
|
#
|
|
def alive?()
|
|
if @db_address
|
|
if @db_address[:database].element_exists?(@db_address[:table],@db_address[:dbid])
|
|
true
|
|
else
|
|
false
|
|
end
|
|
else
|
|
false
|
|
end
|
|
end
|
|
#
|
|
def db_address()
|
|
@db_address
|
|
end
|
|
#
|
|
def deactivate()
|
|
if self.alive?()
|
|
@element_links.each_index do |index|
|
|
element = @element_links[(index)][:content]
|
|
if element.is_any?(::GxG::Database::PersistedHash, ::GxG::Database::PersistedArray)
|
|
containers = [(element)]
|
|
element.search({:include_inactive => false}) do |the_value, the_selector, the_container|
|
|
if the_value.alive?
|
|
the_value.deactivate
|
|
end
|
|
if the_container.alive?
|
|
unless containers.include?(the_container)
|
|
containers.unshift(the_container)
|
|
end
|
|
end
|
|
nil
|
|
end
|
|
containers.each do |the_container|
|
|
the_container.deactivate
|
|
end
|
|
end
|
|
end
|
|
if self.write_reserved?()
|
|
self.release_reservation()
|
|
end
|
|
@element_links = []
|
|
@db_address = nil
|
|
end
|
|
true
|
|
end
|
|
#
|
|
def save()
|
|
result = false
|
|
if self.alive?
|
|
begin
|
|
if @db_address[:database].open?()
|
|
@element_links.each_index do |index|
|
|
# Note: only save property data and header if: a) data is still loaded and b) state has changed.
|
|
if @element_links[(index)][:loaded] == true
|
|
if @element_links[(index)][:state] != @element_links[(index)][:content].hash
|
|
@element_links[(index)][:record][:version] = (@element_links[(index)][:record][:version].to_s("F").to_d + 0.0001)
|
|
element_write(index)
|
|
end
|
|
end
|
|
#
|
|
end
|
|
else
|
|
raise Exception, "Database not available"
|
|
end
|
|
self.save_version
|
|
result = true
|
|
rescue Exception => the_error
|
|
log_error({:error => the_error})
|
|
end
|
|
end
|
|
result
|
|
end
|
|
#
|
|
def destroy()
|
|
result = false
|
|
if self.alive?
|
|
begin
|
|
unless self.write_reserved?()
|
|
raise Exception, "You do not have a write-lock for this element"
|
|
end
|
|
unless @permission[:destroy]
|
|
raise Exception, "You do not have permission to destory this element"
|
|
end
|
|
if @db_address[:database].open?()
|
|
if @db_address[:database].element_in_use?(@db_address[:table], @db_address[:dbid])
|
|
raise Exception, "Element is still linked to a structure. Use <PersistedHash>.delete(<key>).destroy or <PersistedArray>.delete_at(<index>).destroy"
|
|
else
|
|
if self.write_reserved?()
|
|
address = @db_address
|
|
self.deactivate
|
|
address[:database].element_destroy(@credential, address[:table],address[:dbid])
|
|
# Review : consider either emptying the db trash now, or adding a flag to manifest records to prevent future loading.
|
|
result = true
|
|
else
|
|
raise Exception, "You do not have sufficient privileges to make this change"
|
|
end
|
|
end
|
|
else
|
|
raise Exception, "Database not available"
|
|
end
|
|
rescue Exception => the_error
|
|
log_error({:error => the_error})
|
|
end
|
|
end
|
|
result
|
|
end
|
|
#
|
|
def size()
|
|
@element_links.size
|
|
end
|
|
#
|
|
def structure_attached?()
|
|
@db_address[:database].structure_attached?(@uuid.to_s)
|
|
end
|
|
def structure_detach()
|
|
@db_address[:database].structure_detach(@uuid.to_s)
|
|
end
|
|
#
|
|
def []=(indexer=nil, value=nil)
|
|
# Only works with Integer indexes.
|
|
unless self.alive?()
|
|
raise Exception, "Attempted to alter a defunct structure"
|
|
end
|
|
unless @db_address[:database].open?()
|
|
raise Exception, "Database not available"
|
|
end
|
|
result = nil
|
|
if value.is_a?(::OpenStruct)
|
|
value = value.table
|
|
end
|
|
if indexer.is_a?(::Integer)
|
|
# Review : rewrite ????
|
|
if value.is_any?(::GxG::Database::Database::valid_field_classes()) || value.is_any?(::GxG::Database::PersistedHash, ::GxG::Database::PersistedArray, ::Hash, ::Array)
|
|
unless self.write_reserved?()
|
|
self.get_reservation()
|
|
end
|
|
if self.write_reserved?()
|
|
# Further screen value provided:
|
|
# ### Check provided PersistedHashes and PersistedArrays
|
|
if value.is_any?(::GxG::Database::PersistedHash, ::GxG::Database::PersistedArray)
|
|
unless value.db_address()
|
|
raise Exception, "The structure you are attaching is Deactivated (not supported)."
|
|
end
|
|
if value.structure_attached?()
|
|
# Review : experimental - auto-detach from prior structural relationship and reassign here.
|
|
# raise Exception, "Cross linked structures not supported"
|
|
value.structure_detach
|
|
end
|
|
value.search do |the_value, the_selector, the_container|
|
|
if the_value.is_any?(::GxG::Database::PersistedHash, ::GxG::Database::PersistedArray)
|
|
unless the_value.db_address()
|
|
raise Exception, "The structure you are attaching has a Deactivated item within it (not supported)."
|
|
end
|
|
end
|
|
end
|
|
end
|
|
# ### Check provided Hashes and Arrays
|
|
if value.is_any?(::Hash, ::Array)
|
|
value.search do |the_value, the_selector, the_container|
|
|
if the_value.is_any?(::GxG::Database::PersistedHash, ::GxG::Database::PersistedArray)
|
|
unless the_value.db_address()
|
|
raise Exception, "The structure you are attaching has a Deactivated item within it (not supported)."
|
|
end
|
|
if @db_address[:database].structure_attached?(the_value.uuid.to_s) && the_container.is_any?(::Hash, ::Array)
|
|
raise Exception, "The structure you are attaching has a cross-linked structure within it (cross linked structures not supported)."
|
|
end
|
|
end
|
|
unless the_value.is_any?(::GxG::Database::Database::valid_field_classes()) || the_value.is_any?(::GxG::Database::PersistedHash, ::GxG::Database::PersistedArray, ::Hash, ::Array)
|
|
raise Exception, "The structure you are attaching has an unpersistable item within it (not supported)."
|
|
end
|
|
end
|
|
end
|
|
# ### Property Exists?
|
|
if @element_links[(indexer)]
|
|
# set property to value
|
|
operation = :set_value
|
|
else
|
|
if @format
|
|
raise Exception, "Formatted - the structure cannot be altered"
|
|
else
|
|
# add property : value pair
|
|
operation = :add_value
|
|
end
|
|
end
|
|
# ### Prepare new value
|
|
new_value = {
|
|
:linkid => nil,
|
|
:content => nil,
|
|
:loaded => false,
|
|
:state => 0,
|
|
:record => {
|
|
:parent_uuid => @uuid.to_s,
|
|
:ordinal => 0,
|
|
:version => ::BigDecimal.new("0.0"),
|
|
:element => "element_boolean",
|
|
:element_boolean => -1,
|
|
:element_integer => 0,
|
|
:element_float => 0.0,
|
|
:element_bigdecimal => ::BigDecimal.new("0.0"),
|
|
:element_datetime => ::DateTime.now,
|
|
:time_offset => 0.0,
|
|
:time_prior => 0.0,
|
|
:time_after => 0.0,
|
|
:length => 0,
|
|
:element_text => "",
|
|
:element_text_uuid => "",
|
|
:element_binary_uuid => "",
|
|
:element_array_uuid => "",
|
|
:element_hash_uuid => ""
|
|
}
|
|
}
|
|
#
|
|
if value.is_any?(::GxG::Database::PersistedHash, ::GxG::Database::PersistedArray)
|
|
# ### Assimilate PersistedHash or PersistedArray
|
|
new_value[:content] = value
|
|
new_value[:loaded] = true
|
|
new_value[:state] = new_value[:content].hash
|
|
# Note: version is sync'd here, but don't rely upon property version with linked structures, but use structure's version method.
|
|
new_value[:record][:version] = new_value[:content].version()
|
|
if value.is_a?(::GxG::Database::PersistedHash)
|
|
new_value[:record][:element] = "element_hash"
|
|
new_value[:record][:element_hash_uuid] = value.uuid.to_s
|
|
else
|
|
new_value[:record][:element] = "element_array"
|
|
new_value[:record][:element_array_uuid] = value.uuid.to_s
|
|
end
|
|
else
|
|
# ### Persist Hashes and Arrays
|
|
if value.is_any?(::Hash, ::Array)
|
|
new_value[:content] = @db_address[:database].iterative_persist(value,@credential)
|
|
new_value[:loaded] = true
|
|
new_value[:state] = new_value[:content].hash
|
|
# Note: version is sync'd here, but don't rely upon property version with linked structures, but use structure's version method.
|
|
new_value[:record][:version] = new_value[:content].version()
|
|
if value.is_a?(::Hash)
|
|
new_value[:record][:element] = "element_hash"
|
|
new_value[:record][:element_hash_uuid] = new_value[:content].uuid.to_s
|
|
else
|
|
new_value[:record][:element] = "element_array"
|
|
new_value[:record][:element_array_uuid] = new_value[:content].uuid.to_s
|
|
end
|
|
else
|
|
# ### Persist Base Element Values
|
|
new_value[:record][:element] = ::GxG::Database::Database::element_table_for_instance(value).to_s
|
|
case new_value[:record][:element]
|
|
when "element_boolean"
|
|
case value.class
|
|
when ::NilClass
|
|
new_value[:record][:element_boolean] = -1
|
|
new_value[:content] = nil
|
|
when ::FalseClass
|
|
new_value[:record][:element_boolean] = 0
|
|
new_value[:content] = false
|
|
when ::TrueClass
|
|
new_value[:record][:element_boolean] = 1
|
|
new_value[:content] = true
|
|
end
|
|
when "element_integer"
|
|
new_value[:record][:element_integer] = value
|
|
new_value[:content] = value
|
|
when "element_float"
|
|
new_value[:record][:element_float] = value
|
|
new_value[:content] = value
|
|
when "element_bigdecimal"
|
|
new_value[:record][:element_bigdecimal] = ::BigDecimal.new(value.to_s)
|
|
new_value[:content] = new_value[:record][:element_bigdecimal]
|
|
when "element_datetime"
|
|
new_value[:record][:element_datetime] = value
|
|
new_value[:content] = value
|
|
when "element_text"
|
|
if value.size > 256
|
|
# Note: be sure to keep text version & length sync'd with linked text element record
|
|
if operation == :set_value
|
|
new_value[:record][:version] = @element_links[(indexer)][:record][:version]
|
|
new_value[:record][:element_text_uuid] = @element_links[(indexer)][:record][:element_text_uuid]
|
|
end
|
|
new_value[:record][:length] = value.size
|
|
else
|
|
new_value[:record][:element_text] = value
|
|
new_value[:record][:length] = value.size
|
|
end
|
|
new_value[:content] = value
|
|
when "element_binary"
|
|
# Note: be sure to keep version & length sync'd with linked binary element record
|
|
if operation == :set_value
|
|
new_value[:record][:version] = @element_links[(indexer)][:record][:version]
|
|
new_value[:record][:element_binary_uuid] = @element_links[(indexer)][:record][:element_binary_uuid]
|
|
end
|
|
new_value[:record][:length] = value.size
|
|
new_value[:content] = value
|
|
else
|
|
raise Exception, "Unable to map an element type for value: #{value.inspect}"
|
|
end
|
|
end
|
|
end
|
|
# ### Commit Changes
|
|
case operation
|
|
when :set_value
|
|
# Note: Set In-memory value only, don't save unless you have to.
|
|
if new_value[:content].is_a?(@element_links[(indexer)][:content].class) || ([true, false, nil].include?(new_value[:content]) && [true, false, nil].include?(@element_links[(indexer)][:content]))
|
|
# Replace value directly, but don't save yet unless you have to (:state refers to the last 'loaded-in-from-db' state of the data).
|
|
new_value[:linkid] = @element_links[(indexer)][:linkid]
|
|
if new_value[:content].is_any?(::GxG::Database::PersistedHash, ::GxG::Database::PersistedArray)
|
|
new_value[:record][:version] = new_value[:content].version()
|
|
else
|
|
new_value[:record][:version] = (@element_links[(indexer)][:record][:version] + 0.0001)
|
|
end
|
|
new_value[:record][:ordinal] = @element_links[(indexer)][:record][:ordinal]
|
|
new_value[:loaded] = true
|
|
new_value[:state] = @element_links[(indexer)][:state]
|
|
# ### Did string grow or shrink crossing the threshold??
|
|
if new_value[:content].is_a?(::String)
|
|
if (@element_links[(indexer)][:content].size > 256 && new_value[:content].size <= 256)
|
|
# shrank - delete text object and pages as well as property record (slow)
|
|
element_destroy(indexer)
|
|
@element_links[(indexer)] = new_value
|
|
element_write(indexer)
|
|
else
|
|
if (@element_links[(indexer)][:content].size <= 256 && new_value[:content].size > 256)
|
|
# grew - create text object and pages (a little less slow)
|
|
@element_links[(indexer)] = new_value
|
|
element_write(indexer)
|
|
else
|
|
# N/A
|
|
@element_links[(indexer)] = new_value
|
|
end
|
|
end
|
|
else
|
|
# N/A
|
|
@element_links[(indexer)] = new_value
|
|
end
|
|
if new_value[:content].is_any?(::GxG::Database::PersistedHash, ::GxG::Database::PersistedArray)
|
|
# Note: this ensures attachment to this object
|
|
property_write(property_key)
|
|
end
|
|
#
|
|
else
|
|
# Other class value being substituted.
|
|
if new_value[:content].is_any?(::GxG::Database::PersistedHash, ::GxG::Database::PersistedArray)
|
|
new_value[:record][:version] = new_value[:content].version()
|
|
else
|
|
new_value[:record][:version] = (@element_links[(indexer)][:record][:version] + 0.0001)
|
|
end
|
|
new_value[:record][:ordinal] = @element_links[(indexer)][:record][:ordinal]
|
|
new_value[:loaded] = true
|
|
# Destroy old property record on db, and associated linked objects.
|
|
# Review : this is slow - look into optimizations here.
|
|
if @element_links[(indexer)][:content].is_any?(::GxG::Database::PersistedHash, ::GxG::Database::PersistedArray, ::GxG::ByteArray, ::String)
|
|
if @element_links[(indexer)][:content].is_a?(::String)
|
|
if (@element_links[(indexer)][:content].size > 256 && new_value[:content].size <= 256) || (@element_links[(indexer)][:content].size <= 256 && new_value[:content].size > 256)
|
|
element_destroy(indexer)
|
|
end
|
|
else
|
|
element_destroy(indexer)
|
|
end
|
|
end
|
|
#
|
|
@element_links[(indexer)] = new_value
|
|
element_write(indexer)
|
|
end
|
|
#
|
|
when :add_value
|
|
# Note: set in-memory value and save.
|
|
if new_value[:content].is_any?(::GxG::Database::PersistedHash, ::GxG::Database::PersistedArray)
|
|
new_value[:record][:version] = new_value[:content].version()
|
|
else
|
|
new_value[:record][:version] = ::BigDecimal.new("0.0")
|
|
end
|
|
new_value[:record][:ordinal] = @element_links.size
|
|
new_value[:loaded] = true
|
|
#
|
|
@element_links[(indexer)] = new_value
|
|
# Review : is this wise to do this here??
|
|
element_write(indexer)
|
|
end
|
|
# ### Handle coordination between persisted objects:
|
|
if @element_links[(indexer)][:content].is_any?(::GxG::Database::PersistedHash, ::GxG::Database::PersistedArray)
|
|
# ### Extend Reservation to persisted objects ( Review : does this slow it down too much?? )
|
|
@element_links[(indexer)][:content].release_reservation
|
|
@db_address[:database].reservation_add_element((@reservation || @delegate), (@element_links[(indexer)][:content].db_address()[:table]), @element_links[(indexer)][:content].db_address()[:dbid])
|
|
@element_links[(indexer)][:content].set_delegate((@reservation || @delegate))
|
|
# ### Extend Permissions to persisted object
|
|
@db_address[:database].extend_element_permissions(@db_address[:table],@db_address[:dbid],@element_links[(indexer)][:content].db_address()[:table],@element_links[(indexer)][:content].db_address()[:dbid])
|
|
@db_address[:database].enforce_permission_policy({:action => :extend, :credential => @credential, :source => self, :destination => @element_links[(indexer)][:content]})
|
|
#
|
|
@element_links[(indexer)][:content].set_parent(self)
|
|
end
|
|
#
|
|
self.increment_version()
|
|
result = @element_links[(indexer)][:content]
|
|
#
|
|
else
|
|
raise Exception, "You do not have sufficient privileges to make this change. (write-reservation)"
|
|
end
|
|
else
|
|
raise Exception, "The value is not persistable."
|
|
end
|
|
else
|
|
raise Exception, "You must provide a index in the form of an Integer."
|
|
end
|
|
result
|
|
end
|
|
#
|
|
def unload(indexer=nil)
|
|
result = false
|
|
# if key exists
|
|
# if key is loaded, unload element (if String or ByteArray)
|
|
if self.alive?()
|
|
if @db_address[:database].open?()
|
|
if indexer.is_a?(::Integer)
|
|
if @element_links[(indexer)]
|
|
if @element_links[(indexer)][:content].is_any?(::String, ::GxG::ByteArray)
|
|
if @element_links[(indexer)][:loaded] == true
|
|
# ### Unload Base Element contents from memory, leaving reference harness intact and active.
|
|
@element_links[(indexer)][:content].clear
|
|
@element_links[(indexer)][:loaded] = false
|
|
end
|
|
end
|
|
result = true
|
|
end
|
|
else
|
|
raise ArgumentError, "You must specify with an Integer, not a #{indexer.class.inspect}"
|
|
end
|
|
else
|
|
raise Exception, "Database not available"
|
|
end
|
|
else
|
|
raise Exception, "Attempted to access a defunct structure"
|
|
end
|
|
result
|
|
end
|
|
#
|
|
def [](indexer=nil)
|
|
result = nil
|
|
# if exists
|
|
# if is not loaded, load element (if String or ByteArray)
|
|
if self.alive?()
|
|
if @db_address[:database].open?()
|
|
if indexer.is_a?(::Integer)
|
|
if @element_links[(indexer)]
|
|
if @element_links[(indexer)][:content].is_any?(::String, ::GxG::ByteArray)
|
|
unless @element_links[(indexer)][:loaded] == true
|
|
# ### Load Base Element contents from the database.
|
|
if @element_links[(indexer)][:content].is_a?(::String)
|
|
if @element_links[(indexer)][:record][:element_text_uuid].to_s.size > 0
|
|
@db_address[:database].connector()[:text_page].filter({:parent_uuid => @element_links[(indexer)][:record][:element_text_uuid].to_s}).order(:ordinal).each do |text_page|
|
|
@element_links[(indexer)][:content] << text_page[:content]
|
|
end
|
|
else
|
|
@element_links[(indexer)][:content] = @element_links[(indexer)][:record][:element_text].to_s
|
|
end
|
|
else
|
|
@db_address[:database].connector()[:binary_page].filter({:parent_uuid => @element_links[(indexer)][:record][:element_binary_uuid].to_s}).order(:ordinal).each do |binary_page|
|
|
@element_links[(indexer)][:content] << binary_page[:content]
|
|
end
|
|
end
|
|
@element_links[(indexer)][:loaded] = true
|
|
end
|
|
end
|
|
result = @element_links[(indexer)][:content]
|
|
if @as_structures == true
|
|
if result.is_a?(::GxG::Database::PersistedHash)
|
|
result = ::OpenStruct.new(result)
|
|
end
|
|
end
|
|
end
|
|
else
|
|
raise ArgumentError, "You must specify with an Integer, not a #{indexer.class.inspect}"
|
|
end
|
|
else
|
|
raise Exception, "Database not available"
|
|
end
|
|
else
|
|
raise Exception, "Attempted to access a defunct structure"
|
|
end
|
|
result
|
|
end
|
|
#
|
|
def delete_at(indexer=nil)
|
|
result = nil
|
|
# if exists
|
|
# if is not loaded, load element
|
|
if self.alive?()
|
|
if @db_address[:database].open?()
|
|
if indexer.is_a?(::Integer)
|
|
if self.write_reserved?()
|
|
property_key = key.to_s.to_sym
|
|
#
|
|
if @element_links[(indexer)]
|
|
# This will load the unloaded prior to separation.
|
|
result = self[(indexer)]
|
|
if @as_structures == true
|
|
if result.is_a?(::GxG::Database::PersistedHash)
|
|
result = ::OpenStruct.new(result)
|
|
end
|
|
end
|
|
the_link = @element_links.delete_at(indexer)
|
|
if the_link[:content].is_any?(::GxG::Database::PersistedHash, ::GxG::Database::PersistedArray)
|
|
the_link[:content].save
|
|
the_link[:content].release_reservation()
|
|
@db_address[:database].reservation_remove_element((@reservation || @delegate), the_link[:content].db_address()[:table], the_link[:content].db_address()[:dbid])
|
|
else
|
|
# Eliminate orphaned text and binary objects in the database. They will exist only in memory.
|
|
if the_link[:content].is_any?(::String, ::GxG::ByteArray)
|
|
if the_link[:content].is_a?(::String)
|
|
if the_link[:content].size > 256
|
|
# eliminate text object and pages.
|
|
the_temp_record = @db_address[:database].connector()[:element_text].select(:dbid).where({:uuid => the_link[:record][:element_text_uuid]}).first
|
|
if the_temp_record
|
|
@db_address[:database].element_destroy(@credential, :element_text, the_temp_record[:dbid])
|
|
end
|
|
end
|
|
end
|
|
if the_link[:content].is_a?(::GxG::ByteArray)
|
|
# eliminate binary object and pages.
|
|
the_temp_record = @db_address[:database].connector()[:element_binary].select(:dbid).where({:uuid => the_link[:record][:element_binary_uuid]}).first
|
|
if the_temp_record
|
|
@db_address[:database].element_destroy(@credential, :element_binary, the_temp_record[:dbid])
|
|
end
|
|
end
|
|
end
|
|
end
|
|
@db_address[:database].connector()[:array_elements].filter({:dbid => the_link[:linkid]}).delete
|
|
refresh_ordinals
|
|
self.increment_version()
|
|
end
|
|
#
|
|
else
|
|
raise Exception, "You do not have sufficient privileges to make this change"
|
|
end
|
|
else
|
|
raise ArgumentError, "You must specify with a Symbol, not a #{key.class.inspect}"
|
|
end
|
|
else
|
|
raise Exception, "Database not available"
|
|
end
|
|
else
|
|
raise Exception, "Attempted to access a defunct structure"
|
|
end
|
|
result
|
|
end
|
|
#
|
|
def <<(*args)
|
|
if args.size > 0
|
|
args.each do |item|
|
|
self[(@element_links.size)] = item
|
|
end
|
|
end
|
|
self
|
|
end
|
|
#
|
|
def push(*args)
|
|
if args.size > 0
|
|
args.each do |item|
|
|
self << item
|
|
end
|
|
end
|
|
self
|
|
end
|
|
#
|
|
def pop()
|
|
self.delete_at((@element_links.size - 1))
|
|
end
|
|
#
|
|
def shift()
|
|
self.delete_at(0)
|
|
end
|
|
#
|
|
def insert(the_index=nil, the_object=nil)
|
|
# resovle the_index : the_index < 0 : the_index = (size - the_index)
|
|
# if the_index == 0 : @element_links.unshift(nil-record); self[0] = the_object
|
|
# if the_index > size-1 : push(the_object)
|
|
# else: @element_links.insert(the_index, nil-record); self[(the_index)] = the_object
|
|
# vette the_object --> persistable?
|
|
if @db_address
|
|
if @db_address[:database].persistable?(the_object)
|
|
new_value = {
|
|
:linkid => nil,
|
|
:content => nil,
|
|
:loaded => false,
|
|
:state => 0,
|
|
:record => {
|
|
:parent_uuid => @uuid.to_s,
|
|
:ordinal => 0,
|
|
:version => ::BigDecimal.new("0.0"),
|
|
:element => "element_boolean",
|
|
:element_boolean => -1,
|
|
:element_integer => 0,
|
|
:element_float => 0.0,
|
|
:element_bigdecimal => ::BigDecimal.new("0.0"),
|
|
:element_datetime => ::DateTime.now,
|
|
:time_offset => 0.0,
|
|
:time_prior => 0.0,
|
|
:time_after => 0.0,
|
|
:length => 0,
|
|
:element_text => "",
|
|
:element_text_uuid => "",
|
|
:element_binary_uuid => "",
|
|
:element_array_uuid => "",
|
|
:element_hash_uuid => ""
|
|
}
|
|
}
|
|
the_index = the_index.to_i
|
|
if the_index < 0
|
|
the_index = (self.size - the_index)
|
|
end
|
|
if the_index == 0
|
|
new_value[:record][:ordinal] = the_index
|
|
@element_links.unshift(new_value)
|
|
element_write(the_index)
|
|
refresh_ordinals
|
|
self[0] = the_object
|
|
else
|
|
if the_index > (self.size - 1)
|
|
self.push(the_object)
|
|
else
|
|
new_value[:record][:ordinal] = the_index
|
|
@element_links.insert(the_index, new_value)
|
|
element_write(the_index)
|
|
refresh_ordinals
|
|
self[(the_index)] = the_object
|
|
end
|
|
end
|
|
else
|
|
log_warning("Ignoring attempt to insert a non-persistable object.")
|
|
end
|
|
end
|
|
self
|
|
end
|
|
#
|
|
def unshift(the_object=nil)
|
|
self.insert(0,the_object)
|
|
end
|
|
#
|
|
def swap(first_index=nil, last_index=nil)
|
|
result = false
|
|
if first_index && last_index
|
|
if (0..(self.size - 1)).include?(first_index.to_i) && (0..(self.size - 1)).include?(last_index.to_i)
|
|
if first_index.to_i != last_index.to_i
|
|
record = @element_links[(first_index)]
|
|
@element_links[(first_index)] = @element_links[(last_index)]
|
|
@element_links[(last_index)] = record
|
|
refresh_ordinals
|
|
result = true
|
|
end
|
|
end
|
|
end
|
|
result
|
|
end
|
|
#
|
|
def include?(the_value)
|
|
result = false
|
|
if the_value.is_a?(::OpenStruct)
|
|
the_value = the_value.table
|
|
end
|
|
@element_links.each do |element|
|
|
if element[:content] == the_value
|
|
result = true
|
|
break
|
|
end
|
|
end
|
|
result
|
|
end
|
|
#
|
|
def find_index(the_value)
|
|
result = nil
|
|
if the_value.is_a?(::OpenStruct)
|
|
the_value = the_value.table
|
|
end
|
|
@element_links.each_with_index do |element, indexer|
|
|
if element[:content] == the_value
|
|
result = indexer
|
|
break
|
|
end
|
|
end
|
|
result
|
|
end
|
|
#
|
|
def export(options={:exclude_file_segments=>false})
|
|
if self.alive?
|
|
exclude_file_segments = (options[:exclude_file_segments] || false)
|
|
if options[:clone] == true
|
|
# Review : why are cloned objects unconstrained? sync issues??
|
|
result = {:type => :element_array, :uuid => GxG::uuid_generate.to_s.to_sym, :title => @title.clone, :version => @version.to_s("F"), :content => []}
|
|
else
|
|
result = {:type => :element_array, :uuid => @uuid.clone, :title => @title.clone, :version => @version.to_s("F"), :constraint => @constraint.clone, :content => []}
|
|
end
|
|
export_db = [{:parent => nil, :parent_selector => nil, :object => self, :record => result}]
|
|
children_of = Proc.new do |the_parent=nil|
|
|
list = []
|
|
export_db.each do |node|
|
|
if node[:parent].object_id == the_parent.object_id
|
|
list << node
|
|
end
|
|
end
|
|
list
|
|
end
|
|
# Build up export_db:
|
|
self.search do |the_value, the_selector, the_container|
|
|
if the_value.is_a?(::GxG::Database::PersistedHash)
|
|
if options[:clone] == true
|
|
the_uuid = GxG::uuid_generate.to_s.to_sym
|
|
else
|
|
the_uuid = the_value.uuid().clone
|
|
end
|
|
if (exclude_file_segments == true) && (the_selector == :file_segments || the_selector == :segments || the_selector == :portions)
|
|
export_db << {:parent => the_container, :parent_selector => the_selector.clone, :object => {}, :record => {:type => :element_hash, :uuid => the_uuid, :title => the_value.title().clone, :version => ::BigDecimal.new(the_value.version().to_s).to_s("F"), :format => the_value.format().clone, :content => {}}}
|
|
else
|
|
export_db << {:parent => the_container, :parent_selector => the_selector.clone, :object => the_value, :record => {:type => :element_hash, :uuid => the_uuid, :title => the_value.title().clone, :version => ::BigDecimal.new(the_value.version().to_s).to_s("F"), :format => the_value.format().clone, :content => {}}}
|
|
end
|
|
end
|
|
if the_value.is_a?(::GxG::Database::PersistedArray)
|
|
if options[:clone] == true
|
|
the_uuid = GxG::uuid_generate.to_s.to_sym
|
|
else
|
|
the_uuid = the_value.uuid().clone
|
|
end
|
|
if (exclude_file_segments == true) && (the_selector == :file_segments || the_selector == :segments || the_selector == :portions)
|
|
export_db << {:parent => the_container, :parent_selector => the_selector.clone, :object => [], :record => {:type => :element_array, :uuid => the_uuid, :title => the_value.title().clone, :version => ::BigDecimal.new(the_value.version().to_s).to_s("F"), :constraint => the_value.constraint().clone, :content => []}}
|
|
else
|
|
export_db << {:parent => the_container, :parent_selector => the_selector.clone, :object => the_value, :record => {:type => :element_array, :uuid => the_uuid, :title => the_value.title().clone, :version => ::BigDecimal.new(the_value.version().to_s).to_s("F"), :constraint => the_value.constraint().clone, :content => []}}
|
|
end
|
|
end
|
|
if the_value.is_any?(::GxG::Database::Database::valid_field_classes())
|
|
data_type = GxG::Database::Database::element_table_for_instance(the_value)
|
|
case data_type
|
|
when :element_bigdecimal
|
|
data = the_value.to_s
|
|
when :element_datetime
|
|
data = the_value.to_s
|
|
when :element_binary
|
|
data = the_value.to_s.encode64
|
|
when :element_text
|
|
data = the_value.to_s
|
|
else
|
|
data = the_value
|
|
end
|
|
export_db << {:parent => the_container, :parent_selector => the_selector.clone, :object => the_value, :record => {:type => data_type, :version => (::BigDecimal.new(the_container.version(the_selector).to_s) || ::BigDecimal.new("0.0")).to_s("F"), :content => data}}
|
|
end
|
|
end
|
|
# Collect children export content:
|
|
link_db = [(export_db[0])]
|
|
while link_db.size > 0 do
|
|
entry = link_db.shift
|
|
children_of.call(entry[:object]).each do |the_child|
|
|
entry[:record][:content][(the_child[:parent_selector])] = the_child[:record]
|
|
if the_child[:object].is_any?(::GxG::Database::PersistedHash, ::GxG::Database::PersistedArray)
|
|
link_db << the_child
|
|
end
|
|
end
|
|
end
|
|
else
|
|
result = nil
|
|
end
|
|
result
|
|
end
|
|
#
|
|
def export_package(options={:exclude_file_segments=>false})
|
|
self.save
|
|
result = {:formats => {}, :records => []}
|
|
object_record = self.export(options)
|
|
object_record.search do |item,selector,container|
|
|
if selector == :format || selector == :constraint
|
|
if item.to_s.size > 0
|
|
format_uuid = item
|
|
unless result[:formats][(format_uuid.to_s.to_sym)].is_a?(::Hash)
|
|
format_sample = @db_address[:database].format_load({:uuid => format_uuid.to_s.to_sym})
|
|
format_sample[:content] = format_sample[:content].gxg_export()
|
|
result[:formats][(format_uuid.to_s.to_sym)] = format_sample
|
|
end
|
|
end
|
|
end
|
|
end
|
|
result[:records] << object_record
|
|
result
|
|
end
|
|
#
|
|
def first()
|
|
if @element_links.size > 0
|
|
self[0]
|
|
else
|
|
nil
|
|
end
|
|
end
|
|
#
|
|
def last()
|
|
if @element_links.size > 0
|
|
self[(@element_links.size - 1)]
|
|
else
|
|
nil
|
|
end
|
|
end
|
|
#
|
|
def each(&block)
|
|
if block.respond_to?(:call)
|
|
load_element_links
|
|
if @element_links.size > 0
|
|
@element_links.each_index do |index|
|
|
block.call(self[(index)])
|
|
end
|
|
end
|
|
self
|
|
else
|
|
self.to_enum(:each)
|
|
end
|
|
end
|
|
#
|
|
def each_index(&block)
|
|
if block.respond_to?(:call)
|
|
load_element_links
|
|
if @element_links.size > 0
|
|
@element_links.each_index do |index|
|
|
block.call(index)
|
|
end
|
|
end
|
|
self
|
|
else
|
|
self.to_enum(:each_index)
|
|
end
|
|
end
|
|
#
|
|
def each_with_index(offset=0,&block)
|
|
if block.respond_to?(:call)
|
|
load_element_links
|
|
if @element_links.size > 0
|
|
@element_links.to_enum(:each).with_index(offset).each do |entry, index|
|
|
block.call(self[(index)], index)
|
|
end
|
|
end
|
|
self
|
|
else
|
|
self.to_enum(:each_with_index,offset)
|
|
end
|
|
end
|
|
#
|
|
def iterative(options={:include_inactive => true}, &block)
|
|
result = []
|
|
visit = Proc.new do |the_node=nil, accumulator=[]|
|
|
node_stack = []
|
|
if the_node
|
|
node_stack << ({:parent => nil, :parent_selector => nil, :object => (the_node)})
|
|
while (node_stack.size > 0) do
|
|
a_node = node_stack.shift
|
|
#
|
|
if a_node[:object].is_a?(::GxG::Database::PersistedHash)
|
|
if a_node[:object].alive?
|
|
a_node[:object].each_pair do |the_key, the_value|
|
|
node_stack << ({:parent => a_node[:object], :parent_selector => the_key, :object => the_value})
|
|
end
|
|
else
|
|
if options[:include_inactive]
|
|
accumulator << a_node
|
|
end
|
|
end
|
|
end
|
|
if a_node[:object].is_a?(::GxG::Database::PersistedArray)
|
|
if a_node[:object].alive?
|
|
a_node[:object].each_with_index do |the_value, the_index|
|
|
node_stack << ({:parent => a_node[:object], :parent_selector => the_index, :object => the_value})
|
|
end
|
|
else
|
|
if options[:include_inactive]
|
|
accumulator << a_node
|
|
end
|
|
end
|
|
end
|
|
#
|
|
if a_node.alive? || options[:include_inactive]
|
|
accumulator << a_node
|
|
end
|
|
end
|
|
end
|
|
accumulator
|
|
end
|
|
#
|
|
children_of = Proc.new do |the_db=[], the_parent=nil|
|
|
list = []
|
|
the_db.each do |node|
|
|
if node[:parent].object_id == the_parent.object_id
|
|
list << node
|
|
end
|
|
end
|
|
list
|
|
end
|
|
#
|
|
begin
|
|
database = visit.call(self,[])
|
|
link_db = children_of.call(database, self)
|
|
if block.respond_to?(:call)
|
|
while (link_db.size > 0) do
|
|
entry = link_db.shift
|
|
unless entry[:object].object_id == self.object_id
|
|
# calls with parameters: the_value, the_key/the_index (the_selector), the_container
|
|
raw_result = block.call(entry[:object], entry[:parent_selector], entry[:parent])
|
|
if raw_result
|
|
result << raw_result
|
|
end
|
|
end
|
|
if entry[:object].object_id != nil.object_id
|
|
children = children_of.call(database, entry[:object])
|
|
children.each do |child|
|
|
link_db << child
|
|
end
|
|
end
|
|
end
|
|
end
|
|
#
|
|
rescue Exception => the_error
|
|
log_error({:error => the_error, :parameters => {}})
|
|
end
|
|
#
|
|
result
|
|
end
|
|
alias :process :iterative
|
|
#
|
|
def process!(options={:include_inactive => true}, &block)
|
|
self.iterative(options, &block)
|
|
self
|
|
end
|
|
#
|
|
def search(options={:include_inactive => true}, &block)
|
|
results = []
|
|
if block.respond_to?(:call)
|
|
results = self.iterative(options, &block)
|
|
end
|
|
results
|
|
end
|
|
#
|
|
def paths_to(the_object=nil,base_path="")
|
|
# new idea here:
|
|
search_results = []
|
|
unless base_path[0] == "/"
|
|
base_path = ("/" << base_path)
|
|
end
|
|
if base_path.size > 1
|
|
path_stack = base_path.split("/")[1..-1].reverse
|
|
else
|
|
path_stack = []
|
|
end
|
|
origin = self.get_at_path(base_path)
|
|
container_stack = [{:selector => nil, :container => origin}]
|
|
find_container = Proc.new do |the_container|
|
|
result = nil
|
|
container_stack.each_with_index do |entry, index|
|
|
if entry[:container] == the_container
|
|
result = entry
|
|
break
|
|
end
|
|
end
|
|
result
|
|
end
|
|
last_container = origin
|
|
found = false
|
|
# tester = {:a=>1, :b=>2, :c=>[0, 5], :testing=>{:d=>4.0, :e=>0.9, :f => nil}}
|
|
if origin.is_any?(::Hash, ::Array, ::Struct, ::GxG::Database::PersistedHash, ::GxG::Database::PersistedArray)
|
|
origin.process! do |the_value, selector, container|
|
|
if last_container.object_id != container.object_id
|
|
container_record = find_container.call(container)
|
|
if container_record
|
|
path_stack = container_record[:prefix].split("/").reverse
|
|
if path_stack.size == 0
|
|
path_stack << ""
|
|
end
|
|
end
|
|
last_container = container
|
|
end
|
|
if selector.is_a?(Symbol)
|
|
safe_key = (":" + selector.to_s)
|
|
else
|
|
safe_key = selector.to_s
|
|
end
|
|
safe_key.gsub!("/","%2f")
|
|
path_stack.unshift(safe_key)
|
|
# compare the_value
|
|
found = false
|
|
if (the_value == the_object)
|
|
found = true
|
|
end
|
|
if found
|
|
search_results << ("/" << path_stack.reverse.join("/"))
|
|
end
|
|
#
|
|
if the_value.is_any?(::Array, ::Hash, ::Struct, ::GxG::Database::PersistedHash, ::GxG::Database::PersistedArray)
|
|
container_stack.unshift({:selector => selector, :container => the_value, :prefix => (path_stack.reverse.join("/"))})
|
|
end
|
|
path_stack.shift
|
|
#
|
|
nil
|
|
end
|
|
else
|
|
search_results << ("/" << path_stack.join("/"))
|
|
end
|
|
search_results
|
|
end
|
|
#
|
|
def get_at_path(the_path="/")
|
|
# /^(?:[0-9])*[0-9](?:[0-9])*$/ = nil if an alpha present there, else 0 only numeric
|
|
# Attribution : http://stackoverflow.com/questions/1240674/regex-match-a-string-containing-numbers-and-letters-but-not-a-string-of-just-nu
|
|
#
|
|
# if ":" detected do: (str.gsub("%2f","/").to_sym) as key else (str.gsub("%2f","/"))
|
|
result = nil
|
|
if the_path == "/"
|
|
result = self
|
|
else
|
|
object_stack = [(self)]
|
|
path_stack = the_path.split("/")
|
|
path_stack.to_enum.each do |path_element|
|
|
element = nil
|
|
if path_element.size > 0
|
|
if (path_element =~ /^(?:[0-9])*[0-9](?:[0-9])*$/) == 0
|
|
element = path_element.to_i
|
|
else
|
|
element = path_element
|
|
element.gsub!("%2f","/")
|
|
if element[0] == ":"
|
|
element = element[(1..-1)].to_sym
|
|
end
|
|
end
|
|
end
|
|
if element
|
|
result = object_stack.first[(element)]
|
|
if result.is_a?(NilClass)
|
|
break
|
|
else
|
|
object_stack.unshift(result)
|
|
end
|
|
else
|
|
# ignore double slashes? '//'
|
|
# break
|
|
end
|
|
end
|
|
end
|
|
result
|
|
end
|
|
#
|
|
def set_at_path(the_path="/",the_value=nil)
|
|
result = nil
|
|
if the_path != "/"
|
|
container = self.get_at_path(::File::dirname(the_path))
|
|
if container
|
|
raw_selector = ::File::basename(the_path)
|
|
selector = nil
|
|
if raw_selector.size > 0
|
|
if (raw_selector =~ /^(?:[0-9])*[0-9](?:[0-9])*$/) == 0
|
|
selector = raw_selector.to_i
|
|
else
|
|
selector = raw_selector
|
|
selector.gsub!("%2f","/")
|
|
if selector[0] == ":"
|
|
selector = selector[(1..-1)].to_sym
|
|
end
|
|
end
|
|
end
|
|
if selector
|
|
container[(selector)] = the_value
|
|
result = container[(selector)]
|
|
else
|
|
# ignore double slashes? '//'
|
|
# break
|
|
end
|
|
#
|
|
end
|
|
end
|
|
result
|
|
end
|
|
#
|
|
def unpersist()
|
|
result = []
|
|
if self.alive?
|
|
#
|
|
export_db = [{:parent => nil, :parent_selector => nil, :object => self, :record => result}]
|
|
children_of = Proc.new do |the_parent=nil|
|
|
list = []
|
|
export_db.each do |node|
|
|
if node[:parent].object_id == the_parent.object_id
|
|
list << node
|
|
end
|
|
end
|
|
list
|
|
end
|
|
# Build up export_db:
|
|
self.search do |the_value, the_selector, the_container|
|
|
if the_value.is_a?(::GxG::Database::PersistedHash)
|
|
export_db << {:parent => the_container, :parent_selector => the_selector.clone, :object => the_value, :record => {}}
|
|
else
|
|
if the_value.is_a?(::GxG::Database::PersistedArray)
|
|
export_db << {:parent => the_container, :parent_selector => the_selector.clone, :object => the_value, :record => []}
|
|
else
|
|
export_db << {:parent => the_container, :parent_selector => the_selector.clone, :object => the_value, :record => the_value}
|
|
end
|
|
end
|
|
end
|
|
# Collect children export content:
|
|
link_db =[(export_db[0])]
|
|
while link_db.size > 0 do
|
|
entry = link_db.shift
|
|
children_of.call(entry[:object]).each do |the_child|
|
|
entry[:record][(the_child[:parent_selector])] = the_child[:record]
|
|
if the_child[:object].is_any?(::GxG::Database::PersistedHash, ::GxG::Database::PersistedArray)
|
|
link_db << the_child
|
|
end
|
|
end
|
|
end
|
|
#
|
|
end
|
|
result
|
|
end
|
|
#
|
|
end
|
|
end
|
|
end
|