在WSO2 ESB 4.8.1中使用VFS编写文本文件 [英] Writing on a text file using VFS in WSO2 ESB 4.8.1
问题描述
我正在使用VFS传输来轮询简单的文本文件，然后将文件的文本发送到队列.此流程工作正常，但是在执行故障序列时出现错误情况的情况下，我想将错误消息写入一个简单的文本文件中，并且它不起作用.
I am using VFS transport to poll a simple text file and then i send the text of a file to a queue. This flow works fine but in case of error scenario when fault sequence is executed , i want to write my error message to a simple text file and it is not Working.
注意:
我正在使用WSO2 ESB版本4.8.1. 我在"axis2.xml"文件中启用了VFS传输. 我还尝试了
I am using WSO2 ESB Version 4.8.1. I have enabled the VFS transport in my "axis2.xml" file. I have also tried all the solutions provided in this question which is related to mine.
我的服务代码:
<?xml version="1.0" encoding="UTF-8"?>
<proxy xmlns="http://ws.apache.org/ns/synapse"
name="FileWriteTest"
transports="vfs"
statistics="disable"
trace="disable"
startOnLoad="true">
<target>
<inSequence>
<log level="full"
separator="******************FileWrite In Sequence Start*************"/>
</inSequence>
<outSequence/>
<faultSequence>
<payloadFactory media-type="xml">
<format>
<MessageFormat xmlns="">
<ECode>$1</ECode>
<EMsg>$2</EMsg>
<EDetail>$3</EDetail>
<EException>$4</EException>
</MessageFormat>
</format>
<args>
<arg evaluator="xml" expression="get-property('ERROR_CODE')"/>
<arg evaluator="xml" expression="get-property('ERROR_MESSAGE')"/>
<arg evaluator="xml" expression="get-property('ERROR_DETAIL')"/>
<arg evaluator="xml" expression="get-property('ERROR_EXCEPTION')"/>
</args>
</payloadFactory>
<property name="OUT_ONLY" value="true" scope="default" type="STRING"/>
<property name="ClientApiNonBlocking" scope="axis2" action="remove"/>
<send>
<endpoint>
<address uri="vfs:file:///home/omerkhalid/Documents/WSO2Test/FileWrite/Errorlog.txt"/>
</endpoint>
</send>
</faultSequence>
<endpoint>
<address uri="jms:/FileWriterResponse?transport.jms.ConnectionFactoryJNDIName=QueueConnectionFactory&java.naming.factory.initial=org.apache.activemq.jndi.ActiveMQInitialContextFactory&java.naming.provider.url=tcp://localhost:6616&transport.jms.DestinationType=queue"/>
</endpoint>
</target>
<parameter name="transport.PollInterval">10</parameter>
<parameter name="transport.vfs.FileURI">file://home/omerkhalid/Documents/WSO2Test/FileWrite/InTest</parameter>
<parameter name="transport.vfs.MoveAfterProcess">file://home/omerkhalid/Documents/WSO2Test/FileWrite/DoneTest</parameter>
<parameter name="transport.vfs.FileNamePattern">.*.txt</parameter>
<parameter name="transport.vfs.ContentType">text/plain</parameter>
<parameter name="transport.vfs.ActionAfterFailure">MOVE</parameter>
<parameter name="serviceType">proxy</parameter>
<description/>
</proxy>
问题区域:
问题出在以下代码区域，我在其中为故障序列定义端点.它确实在该特定位置创建了一个文件，但是该文件仍然为空.
Problem Area:
The problem is in the following area of code, where i am defining my endpoint for Fault Sequence. It does create an file on that particular location but that file remains empty.
<send>
<endpoint>
<address uri="vfs:file:///home/omerkhalid/Documents/WSO2Test/FileWrite/Errorlog.txt"/>
</endpoint>
</send>
例外:
org.apache.axis2.AxisFault: The system cannot infer the transport information from the file:///home/omerkhalid/Documents/WSO2Test/FileWrite/Errorlog.txt URL.
at org.apache.axis2.description.ClientUtils.inferOutTransport(ClientUtils.java:81)
at org.apache.axis2.client.OperationClient.prepareMessageContext(OperationClient.java:288)
at org.apache.axis2.description.OutOnlyAxisOperationClient.executeImpl(OutOnlyAxisOperation.java:249)
at org.apache.axis2.client.OperationClient.execute(OperationClient.java:149)
at org.apache.synapse.core.axis2.Axis2FlexibleMEPClient.send(Axis2FlexibleMEPClient.java:482)
at org.apache.synapse.core.axis2.Axis2Sender.sendOn(Axis2Sender.java:59)
at org.apache.synapse.core.axis2.Axis2SynapseEnvironment.send(Axis2SynapseEnvironment.java:338)
at org.apache.synapse.endpoints.AbstractEndpoint.send(AbstractEndpoint.java:333)
at org.apache.synapse.endpoints.AddressEndpoint.send(AddressEndpoint.java:59)
at org.apache.synapse.mediators.builtin.SendMediator.mediate(SendMediator.java:97)
at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:77)
at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:47)
at org.apache.synapse.mediators.base.SequenceMediator.mediate(SequenceMediator.java:131)
at org.apache.synapse.mediators.MediatorFaultHandler.onFault(MediatorFaultHandler.java:85)
at org.apache.synapse.FaultHandler.handleFault(FaultHandler.java:54)
at org.apache.synapse.endpoints.AbstractEndpoint.invokeNextFaultHandler(AbstractEndpoint.java:640)
at org.apache.synapse.endpoints.AbstractEndpoint.onFault(AbstractEndpoint.java:475)
at org.apache.synapse.endpoints.AddressEndpoint.onFault(AddressEndpoint.java:43)
at org.apache.synapse.FaultHandler.handleFault(FaultHandler.java:102)
at org.apache.synapse.core.axis2.AsyncCallback.onError(AsyncCallback.java:67)
at org.apache.axis2.engine.AxisEngine$TransportNonBlockingInvocationWorker.run(AxisEngine.java:643)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
推荐答案
从您的faultSequence中更改有效负载工厂中的消息:
邮件的根节点必须为:<text xmlns="http://ws.apache.org/commons/ns/payload">
Change your message in payloadFactory from your faultSequence :
The root node of your message must be : <text xmlns="http://ws.apache.org/commons/ns/payload">
，此节点的内容将是发送到您文件的文本值
and the content of this node will be the text value sent to your file
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