#
# Copyright (c) 2005-2006, 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.
#
# $Id: workitem.rb 3555 2006-11-13 00:47:53Z jmettraux $
#

#
# "hecho en Costa Rica"
# enhanced in Japan
#
# john.mettraux@openwfe.org
#

require 'base64'

require 'definitions'


module OpenWFE

    #
    # FlowExpressionId
    #
    class FlowExpressionId

        attr_accessor \
            :owfeVersion, \
            :engineId, \
            :initialEngineId, \
            :workflowDefinitionUrl, \
            :workflowDefinitionName, \
            :workflowDefinitionRevision, \
            :workflowInstanceId, \
            :expressionName, \
            :expressionId

        #
        # overrides the classical to_s()
        #
        def to_s ()
            return "(fei #{@owfeVersion} #{@engineId}/#{@initialEngineId} #{@workflowDefinitionUrl} #{@workflowDefinitionName} #{@workflowDefinitionRevision} #{@workflowInstanceId} #{@expressionName} #{@expressionId} )"
        end

        #
        # This class method parses a string into a FlowExpressionId instance
        #
        def FlowExpressionId.strToFei (string)

            fei = FlowExpressionId.new()

            ss = string.split(" ")

            fei.owfeVersion = ss[2]

            ssRawEngineId = ss[3].split("/")
            fei.engineId= ssRawEngineId[0]
            fei.initialEngineId= ssRawEngineId[1]

            fei.workflowDefinitionUrl = ss[4]
            fei.workflowDefinitionName = ss[5]
            fei.workflowDefinitionRevision = ss[6]
            fei.workflowInstanceId = ss[7]
            fei.expressionName = ss[8]
            fei.expressionId = ss[9]

            return fei
        end

        def hash ()
            return to_s().hash()
        end

        def == (other)
            return false if not other.kind_of?(FlowExpressionId)

            @owfeVersion == other.owfeVersion and 
            @engineId == other.engineId and 
            @initialEngineId == other.initialEngineId and
            @workflowDefinitionUrl == other.workflowDefinitionUrl and
            @workflowDefinitionName == other.workflowDefinitionName and
            @workflowDefinitionRevision == other.workflowDefinitionRevision and
            @workflowInstanceId == other.workflowInstanceId and
            @expressionName == other.expressionName and
            @expressionId == other.expressionId
        end

        def dup
            n = FlowExpressionId.new
            n.owfeVersion = @owfeVersion.dup
            n.engineId = @engineId.dup
            n.initialEngineId = @initialEngineId.dup
            n.workflowDefinitionUrl = @workflowDefinitionUrl.dup
            n.workflowDefinitionName = @workflowDefinitionName.dup
            n.workflowDefinitionRevision = @workflowDefinitionRevision.dup
            n.workflowInstanceId = @workflowInstanceId.dup
            n.expressionName = @expressionName.dup
            n.expressionId = @expressionId.dup
            return n
        end

        alias eql? ==

        #alias to_debug_s to_s
        def to_debug_s
            "#{to_s}  (h#{hash}) (i#{object_id})"
        end
    end

end