Class: RestfulX::AMF::Pure::RxAMFSerializer

Inherits:
Object
  • Object
show all
Includes:
WriteIOHelpers
Defined in:
lib/restfulx/amf/pure/serializer.rb

Instance Method Summary collapse

Methods included from WriteIOHelpers

#byte_order, #byte_order_little?, #pack_double, #pack_int16_network, #pack_int8, #pack_integer, #pack_word32_network

Constructor Details

#initialize ⇒ RxAMFSerializer

Returns a new instance of RxAMFSerializer.



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# File 'lib/restfulx/amf/pure/serializer.rb', line 45

def initialize()
  @stream = ""
  @string_cache = SerializerCache.new
  @object_cache = SerializerCache.new
end

Instance Method Details

#serialize_errors(errors) ⇒ Object 



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# File 'lib/restfulx/amf/pure/serializer.rb', line 120

def serialize_errors(errors)
  @stream << AMF3_OBJECT_MARKER << AMF3_XML_DOC_MARKER
  write_vr('org.restfulx.messaging.io.ServiceErrors')
  serialize_property(errors)
  @stream << AMF3_CLOSE_DYNAMIC_OBJECT
  self
end

#serialize_models_array(records, options = {}) ⇒ Object 



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# File 'lib/restfulx/amf/pure/serializer.rb', line 102

def serialize_models_array(records, options = {})
  @stream << AMF3_OBJECT_MARKER << AMF3_XML_DOC_MARKER
  write_vr('org.restfulx.messaging.io.ModelsCollection')
  @object_cache.cache_index += 2

  serialize_records(records, options)      
end

#serialize_property(prop) ⇒ Object 



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# File 'lib/restfulx/amf/pure/serializer.rb', line 78

def serialize_property(prop)
  if prop.is_a?(NilClass)
    write_null
  elsif prop.is_a?(TrueClass)
    write_true
  elsif prop.is_a?(FalseClass)
    write_false
  elsif prop.is_a?(Float) || prop.is_a?(Bignum) || prop.is_a?(BigDecimal)
    write_float(prop)
  elsif prop.is_a?(Integer)
    write_integer(prop)
  elsif prop.is_a?(Symbol) || prop.is_a?(String)
    write_string(prop.to_s)
  elsif prop.is_a?(Time) || prop.is_a?(DateTime)
    write_time(prop)
  elsif prop.is_a?(Date)
    write_date(prop)
  elsif prop.is_a?(Hash)
    write_hash(prop)
  end
  
  self
end

#serialize_record(record, serializable_names = nil, options = {}, &block) ⇒ Object 



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# File 'lib/restfulx/amf/pure/serializer.rb', line 128

def serialize_record(record, serializable_names = nil, options = {}, &block)
  @stream << AMF3_OBJECT_MARKER
  record_id = record.respond_to?(:unique_id) ? record.unique_id : record.object_id

  partials = {}

  if @object_cache[record_id] != nil
    write_reference(@object_cache[record_id])
  else
    # Cache object
    @object_cache.cache(record_id)

    # Always serialize things as dynamic objects
    @stream << AMF3_DYNAMIC_OBJECT

    # Write class name/anonymous
    class_name = RestfulX::AMF::ClassMapper.get_as_class_name(record)
    if class_name
      write_vr(class_name)
    else
      @stream << AMF3_ANONYMOUS_OBJECT
    end

    serializable_names.each do |prop|
      if prop.is_a?(Hash)
        record_name = prop[:name]
        record_value = record[record_name]
        ref_name = prop[:ref_name]
        ref_class = prop[:ref_class]
        
        if ref_class == "polymorphic"
          ref_class_name = record["#{prop[:orig_ref_name]}_type"]
          ref_class = ref_class_name.constantize
        else
          ref_class_name = ref_class.class_name
        end
        
        result_id = "#{ref_class_name}_#{record_value}" if record_value

        write_vr(ref_name)
        if result_id               
          if @object_cache[result_id]
            @stream << AMF3_OBJECT_MARKER
            write_reference(@object_cache[result_id])
          else
            partials[ref_name.to_s] = ref_class_name
            unless partial = options[:cached_instances][ref_class_name]
              options[:cached_instances][ref_class_name] = ref_class.new
              partial = options[:cached_instances][ref_class_name]
            end
            partial.id = record_value
            serialize_record(partial, ['id'])
          end
        else
          write_null
        end
      else
        write_vr(prop.to_s.camelize(:lower))
        serialize_property(record[prop])
      end
    end

    write_vr("partials")
    serialize_property(partials)

    block.call(self) if block_given?

    # Write close
    @stream << AMF3_CLOSE_DYNAMIC_OBJECT
  end
  self
end

#serialize_typed_array(records, options = {}) ⇒ Object 



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# File 'lib/restfulx/amf/pure/serializer.rb', line 110

def serialize_typed_array(records, options = {})
  @stream << AMF3_OBJECT_MARKER << AMF3_XML_DOC_MARKER
  write_vr('org.restfulx.messaging.io.TypedArray')
  @object_cache.cache_index += 1
  serialize_property(options[:attributes])
  @object_cache.cache_index += 1

  serialize_records(records, options)      
end

#to_s ⇒ Object 



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# File 'lib/restfulx/amf/pure/serializer.rb', line 55

def to_s
  @stream
end

#version ⇒ Object 



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# File 'lib/restfulx/amf/pure/serializer.rb', line 51

def version
  3
end

#write_vr(name) ⇒ Object 



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# File 'lib/restfulx/amf/pure/serializer.rb', line 59

def write_vr(name)
  if name == ''
    @stream << AMF3_EMPTY_STRING
  elsif @string_cache[name] != nil
    write_reference(@string_cache[name])
  else
    # Cache string
    @string_cache.cache(name)

    # Build AMF string
    header = name.length << 1 # make room for a low bit of 1
    header = header | 1 # set the low bit to 1
    @stream << pack_integer(header)
    @stream << name
  end
  
  nil
end