ping.bpel

bpel执行引擎用来执行bpel业务流程

<?xml version="1.0" encoding="UTF-8"?>
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  ~ or more contributor license agreements.  See the NOTICE file
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  ~ to you under the Apache License, Version 2.0 (the
  ~ "License"); you may not use this file except in compliance
  ~ with the License.  You may obtain a copy of the License at
  ~
  ~    http://www.apache.org/licenses/LICENSE-2.0
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  ~ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  ~ KIND, either express or implied.  See the License for the
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  -->
<process
        name="Ping"
        xmlns="http://docs.oasis-open.org/wsbpel/2.0/process/executable"
        targetNamespace="urn:/Ping.bpel"
        xmlns:xsd="http://www.w3.org/2001/XMLSchema"
        xmlns:tns="urn:/Ping.bpel"
        xmlns:ping="urn:/Ping.wsdl"
        xmlns:pong="urn:/Pong.wsdl"
        expressionLanguage="urn:oasis:names:tc:wsbpel:2.0:sublang:xpath1.0">

    <import location="Ping.wsdl"
            namespace="urn:/Ping.wsdl"
            importType="http://schemas.xmlsoap.org/wsdl/" />

    <import location="Pong.wsdl"
            namespace="urn:/Pong.wsdl"
            importType="http://schemas.xmlsoap.org/wsdl/" />

    <partnerLinks>
        <partnerLink name="PingPartnerLink"
                partnerLinkType="ping:PingPartnerLinkType"
                myRole="Provider" />
        <partnerLink name="PongPartnerLink"
                partnerLinkType="pong:PongPartnerLinkType"
                partnerRole="Provider"
                initializePartnerRole="yes" />
    </partnerLinks>

    <variables>
        <variable messageType="ping:PingRequest" name="pingRequest"/>
        <variable messageType="ping:PingResponse" name="pingResponse"/>
        <variable messageType="pong:PongRequest" name="pongRequest"/>
        <variable messageType="pong:PongResponse" name="pongResponse"/>
        <variable type="xsd:string" name="text" />
    </variables>

    <sequence name="Main">
        <receive name="pingReceive"
                createInstance="yes"
                operation="Ping"
                partnerLink="PingPartnerLink"
                portType="ping:PingPortType"
                variable="pingRequest"/>

        <assign name="assignPongRequest">
            <!-- add "ping" text to the input text -->
            <copy>
                <from>concat($pingRequest.body/ping:text, ' ping')</from>
                <to variable="text"/>
            </copy>
            <!-- initialize pongRequest -->
            <copy>
                <from>
                    <literal>
                        <pong:PongRequest>
                            <pong:text/>
                        </pong:PongRequest>
                    </literal>
                </from>
                <to>$pongRequest.body</to>
            </copy>
            <!-- copy new text into pongRequest -->
            <copy>
                <from>$text</from>
                <to>$pongRequest.body/pong:text</to>
            </copy>
        </assign>
        
        <invoke name="invokePong"
                operation="Pong"
                inputVariable="pongRequest"
                outputVariable="pongResponse"
                partnerLink="PongPartnerLink"
                portType="pong:PongPortType"/>
        
        <assign name="assignPingResponse">
            <copy>
                <from>$pongResponse.body/pong:text</from>
                <to>$text</to>
            </copy>
            <!-- initialize pingResponse -->
            <copy>
                <from>
                    <literal>
                        <ping:PingResponse>
                            <ping:text/>
                        </ping:PingResponse>
                    </literal>
                </from>
                <to>$pingResponse.body</to>
            </copy>
            <!-- copy new text into pingResponse -->
            <copy>
                <from>$text</from>
                <to>$pingResponse.body/ping:text</to>
            </copy>
        </assign>

        <reply name="pingReply"
                partnerLink="PingPartnerLink"
                portType="ping:PingPortType"
                operation="Ping"
                variable="pingResponse"/>
    </sequence>
</process>