Question

我希望使用故障序列处理错误但我希望使用删除操作自定义它我的情况是，当我插入2个表时，如果第二个表插入错误，我需要删除第一行插入，我的配置在下面

<proxy xmlns="http://ws.apache.org/ns/synapse" name="ErrorHandling" transports="https,http" statistics="disable" trace="disable" startOnLoad="true">
   <target >
      <inSequence onError="fault">
         <property name="eno" expression="//eno/text()" scope="default" type="STRING"/>
         <property name="ename" expression="//ename/text()" scope="default" type="STRING"/>
         <property name="esal" expression="//esal/text()" scope="default" type="STRING"/>
         <property name="deptname" expression="//deptname/text()" scope="default" type="STRING"/>
         <property name="deptid" expression="//deptid/text()" scope="default" type="STRING"/>
         <payloadFactory>
            <format>
               <p:insert_emp_operation xmlns:p="http://ws.wso2.org/dataservice">
                  <xs:eno xmlns:xs="http://ws.wso2.org/dataservice">$1</xs:eno>
                  <xs:ename xmlns:xs="http://ws.wso2.org/dataservice">$2</xs:ename>
                  <xs:esal xmlns:xs="http://ws.wso2.org/dataservice">$3</xs:esal>
               </p:insert_emp_operation>
            </format>
            <args>
               <arg expression="get-property('eno')"/>
               <arg expression="get-property('ename')"/>
               <arg expression="get-property('esal')"/>
            </args>
         </payloadFactory>
         <send receive="Error_Seq">
            <endpoint>
               <address uri="http://localhost:9764/services/emp_DataService/" format="soap11"/>
            </endpoint>
         </send>
         <log level="full"/>
      </inSequence>
      <outSequence  onError="fault">
         <send/>
         <log level="full"/>
      </outSequence>
   </target>
   <description></description>
</proxy>

和序列就是这样

<sequence xmlns="http://ws.apache.org/ns/synapse" name="Error_Seq" onError="fault">
   <property xmlns:f="http://ws.wso2.org/dataservice" xmlns:ns="http://org.apache.synapse/xsd" name="ID" expression="//f:ID/text()" scope="default" type="STRING"/>
   <log>
      <property xmlns:ns="http://org.apache.synapse/xsd" name="faisal" expression="get-property('ID')"/>
   </log>
   <payloadFactory>
      <format>
         <p:insert_dept_operation xmlns:p="http://ws.wso2.org/dataservice">
            <xs:deptno xmlns:xs="http://ws.wso2.org/dataservice">$1</xs:deptno>
            <xs:deptname xmlns:xs="http://ws.wso2.org/dataservice">$2</xs:deptname>
            <xs:deptid xmlns:xs="http://ws.wso2.org/dataservice">$3</xs:deptid>
         </p:insert_dept_operation>
      </format>
      <args>
         <arg xmlns:ns="http://org.apache.synapse/xsd" expression="get-property('ID')"/>
         <arg xmlns:ns="http://org.apache.synapse/xsd" expression="get-property('deptname')"/>
         <arg xmlns:ns="http://org.apache.synapse/xsd" expression="get-property('deptid')"/>
      </args>
   </payloadFactory>
   <send>
      <endpoint>
         <address uri="http://localhost:9764/services/dept_DataService/" format="soap11"/>
      </endpoint>
   </send>
</sequence>

故障序列就像这样

<sequence xmlns="http://ws.apache.org/ns/synapse" name="fault">
   <property xmlns:ns="http://org.apache.synapse/xsd" name="ID" expression="get-property('ID')" scope="default" type="STRING"/>
   <log level="full">
      <property name="MESSAGE" value="Executing default 'fault' sequence"/>
      <property xmlns:ns="http://org.apache.synapse/xsd" name="ERROR_CODE" expression="get-property('ERROR_CODE')"/>
      <property xmlns:ns="http://org.apache.synapse/xsd" name="ERROR_MESSAGE" expression="get-property('ERROR_MESSAGE')"/>
      <property xmlns:ns="http://org.apache.synapse/xsd" name="Property" expression="get-property('ID')"/>
   </log>
   <payloadFactory>
      <format>
         <p:Delete_Op xmlns:p="http://ws.wso2.org/dataservice">
            <xs:eno xmlns:xs="http://ws.wso2.org/dataservice">$1</xs:eno>
         </p:Delete_Op>
      </format>
   </payloadFactory>
   <send>
      <endpoint>
         <address uri="http://localhost:9764/services/dept_DataService/" format="soap11"/>
      </endpoint>
   </send>
</sequence>

但是当DSS处于OFF模式时它无法正常工作让我知道DSS处于运行模式时如何删除第一个表行

Answer 1

在DSS中更新失败的情况下，它会将SOAP错误发送回ESB。由于ESB这仍然只是另一个消息响应，并且它不会转到故障序列，除非您明确检查消息并执行必要的操作。所以你必须声明comming消息是一个SOAP_FAULT，所以你要说它是一个SOAP_FAULT并强迫它出错。这在[1]中有解释。

[1] http://maharachchi.blogspot.com/2012/09/now-you-can-send-soapfaults-to-fault.html

如何处理WSO2ESB中的错误序列

1 个答案: