<?xml version="1.0" encoding="UTF-8"?>

<!--
FILE INFORMATION

Description
   This XML file contains a WS-BPEL 2.0 abstract process for a PAL Rule
   defined as part of the PDE enabler.

Version: 1.0  
Date:    01 March 2011

OMA Permanent Document
   File: OMA-SUP-XML_pde_prIsContactable-V1_0-20110301-A
   Type: text/xml

Public Reachable Information
   Path: http://www.openmobilealliance.org/tech/profiles/rules
   Name: pde_prIsContactable-v1_0.xml

NORMATIVE INFORMATION

Information about this file can be found in the latest revision of the specification
OMA-DDS-PAL_Data_Ext-V1_0 available at
   http://www.openmobilealliance.org/

Send comments to technical-comments@mail.openmobilealliance.org
	
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-->

<bpel:process name="isContactable"
         targetNamespace="oma:prs:pal:rules"
         suppressJoinFailure="yes"
         xmlns:tns="oma:prs:pal:rules" 
         xmlns:pdf="urn:ietf:params:xml:ns:pidf"
         xmlns:rpid="urn:ietf:params:xml:ns:pidf:rpid"
         xmlns:prs="urn:oma:xml:prs:pidf:oma-pres"
         xmlns:bpt="urn:oma:xml:prs:pal:base-policy-type:1.0"
         xmlns:mpa="urn:oma:xml:prs:pal:payloads:1.0"
         xmlns:pal="urn:oma:xml:prs:pal:types:1.0"
         xmlns:bpel="http://docs.oasis-open.org/wsbpel/2.0/process/abstract"
		 xmlns:xsd="http://www.w3.org/2001/XMLSchema"
         abstractProcessProfile="http://docs.oasis-open.org/wsbpel/2.0/process/abstract/simple-template/2006/08"
		 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
         xsi:schemaLocation="http://docs.oasis-open.org/wsbpel/2.0/process/abstract http://docs.oasis-open.org/wsbpel/2.0/CS01/process/abstract/ws-bpel_abstract_common_base.xsd">

        
    <!-- ================================================================= -->         
    <!-- PARTNERLINKS                                                      -->
    <!-- List of services participating in this BPEL process               -->
    <!-- ================================================================= -->         
    <bpel:partnerLinks>
        <!-- The 'client' role represents the requester of this service. -->
        <bpel:partnerLink name="client" partnerLinkType="tns:isContactable"/>
    </bpel:partnerLinks>
  
    <!-- ================================================================= -->         
    <!-- VARIABLES                                                         -->
    <!-- List of messages and XML documents used within this BPEL process  -->
    <!-- ================================================================= -->         
    <bpel:variables>
        <!-- Reference to the message passed as input during initiation -->
        <bpel:variable name="contactEval" type="pal:receiveContactableMessage"/>
        <bpel:variable name="theResult"   type="pal:replyContactableMessage"/>
        <bpel:variable name="prsInfo"     type="pdf:presence"/>
	    <bpel:variable name="svcID"       type="xsd:anyURI"/>
	    <bpel:variable name="devID"       type="xsd:anyURI"/>
	    <bpel:variable name="cm"          type="xsd:token"/>
	    <bpel:variable name="optIn"       type="bpt:UndefWillingnessType"/>
	    <bpel:variable name="avail"       type="xsd:boolean"/> 
	    <bpel:variable name="boolTmp"     type="xsd:boolean"/>                         
    </bpel:variables>

    <!-- ================================================================= -->         
    <!-- ORCHESTRATION LOGIC                                               -->
    <!-- Set of activities coordinating the flow of messages across the    -->
    <!-- services integrated within this business process                  -->
    <!-- ================================================================= -->         
    <bpel:sequence>
        
        <!-- Receive input from requester. 
             Note: This maps to operation defined in isContactable.wsdl 
             -->
        <bpel:receive name="receiveInput" partnerLink="client"
                 operation="ContactRequest" variable="contactEval"/>
        <bpel:assign validate="no">
            <bpel:documentation>
                Establish the following local variables:
                   - ServiceID from 'contactEval'
                   - Presence document (PIDF) from 'contactEval'.
            </bpel:documentation>

            <bpel:copy>
                <bpel:from>
                     bpel:getVariableProperty("contactEval" "xsd:anyURI")
                </bpel:from> 
                <bpel:to>$svcID</bpel:to> 
            </bpel:copy>

            <bpel:copy>
                <bpel:from>
			         bpel:getVariableProperty("contactEval" "pdf:presence")
			    </bpel:from>
                <bpel:to>$prsInfo</bpel:to> 
            </bpel:copy>
            
            <bpel:copy>
                <bpel:from>boolean(0)</bpel:from>
                <bpel:to>$boolTmp</bpel:to> 
            </bpel:copy>
        </bpel:assign>
        
        <bpel:invoke partnerLink="client" operation="hasOptedInForService" 
		        inputVariable="prsInfo" outputVariable="optIn"/>
		<bpel:invoke partnerLink="client" operation="isAvailable"
		        inputVariable="prsInfo" outputVariable="avail"/>
		        
		<bpel:if xmlns:bpel2="http://docs.oasis-open.org/wsbpel/2.0/process/executable">
            <bpel:condition>
                <![CDATA[exists($optIn) and $avail = "TRUE"]]>
            </bpel:condition>
            <bpel:flow>
            
                  <bpel:opaqueActivity name="findContactMeans">
                      <bpel:documentation>
                          Find applicable contact means $cm in $prsInfo (i.e. service)
						  tuple corresponding to $svcID
                      </bpel:documentation>
                  </bpel:opaqueActivity>
            
                  <bpel:if xmlns:bpel2="http://docs.oasis-open.org/wsbpel/2.0/process/executable">
                      <bpel:condition>
                          <![CDATA[exists($cm)]]>
                      </bpel:condition>
                      <bpel:flow>
                         
                          <bpel:opaqueActivity name="establishApplicableContactMeans">
                              <bpel:documentation>
                                  Establish $theResult with isContactable='open'
								  and a valid ContactMeans based on $cm, for $svcID 
								  utilizing validity period established from $optIn.
				                  - $boolTmp is set to the value 'true' on 
								    successful completion of this activity
                              </bpel:documentation>
                          </bpel:opaqueActivity>  
                        
                      </bpel:flow>
                  </bpel:if>
                  
            </bpel:flow>
        </bpel:if>
        
        <bpel:if xmlns:bpel2="http://docs.oasis-open.org/wsbpel/2.0/process/executable">
            <bpel:condition><![CDATA[not($boolTmp)]]></bpel:condition>
            
            <bpel:flow>
                <bpel:opaqueActivity name="establishUndefinedContactMeans">
                    <bpel:documentation>
                         Establish $theResult with attribute isContactable='closed' and 
                         undefined ContactMeans, and validity period.
                     </bpel:documentation>
                </bpel:opaqueActivity>
			</bpel:flow>
            
        </bpel:if>
                  
        <!-- Generate reply to synchronous request -->
        <bpel:reply name="ReplyResponseToPartner" partnerLink="client" 
             operation="ContactSubmit" variable="theResult"/>
    </bpel:sequence>
</bpel:process>