#
#--
# Copyright (c) 2007-2008, John Mettraux, OpenWFE.org
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# . Redistributions of source code must retain the above copyright notice, this
#   list of conditions and the following disclaimer.
#
# . Redistributions in binary form must reproduce the above copyright notice,
#   this list of conditions and the following disclaimer in the documentation
#   and/or other materials provided with the distribution.
#
# . Neither the name of the "OpenWFE" nor the names of its contributors may be
#   used to endorse or promote products derived from this software without
#   specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#++
#

#
# "made in Japan"
#
# John Mettraux at openwfe.org
#

require 'yaml'


module OpenWFE

  #
  # reopening some classes in order to facilitate their
  # yaml serialization
  #

  #
  # opening for tuning yaml persistence
  #
  class FlowExpression

    def to_yaml_properties

      l = super

      l.delete("@application_context")

      #l.delete("@timeout_job_id")
      #l.delete("@scheduler_job_id")
        # scheduler ids should not get persisted

      l
    end
  end

  #
  # making sure that the FlowExpressionId is serialized as a unique String
  #
  class FlowExpressionId

    yaml_as "tag:ruby.yaml.org,2002:#{self}"

    #--
    #def to_yaml (opts={})
    #  @s = to_s
    #  super
    #end
    #def to_yaml_properties
    #  [ "@s" ]
    #end
    #++

    def to_yaml (opts={})

      YAML::quick_emit(self.object_id, opts) do |out|
        out.map(taguri) do |map|
          map.add "s", to_s
        end
      end
    end

    def FlowExpressionId.yaml_new (klass, tag, val)

      s = val["s"]
      begin
        FlowExpressionId.to_fei s
      rescue Exception => e
        raise "failed to decode FlowExpressionId out of '#{s}'"
      end
    end
  end
end