CODEWITHSUNDEEP
wso2wso2-enterprise-integratorwso2-esb
Tech Fiddler
Tech Fiddler

Reputation: 49

WSO2 ESB FileConnector MergeFiles does not produce expected results

I am working with the WSO2 ESB 6.5.0 and am using the fileconnector-2.0.21 version for file operations. The proxy service that I'm building is intended to read the files from a certain source path and merge the contents into a file at the destination path.

The content of the proxy service artifact is below

<?xml version="1.0" encoding="UTF-8"?>
<proxy name="FileMergeProxy" startOnLoad="true" transports="http https" xmlns="http://ws.apache.org/ns/synapse">
    <target>
        <inSequence>
            <log description="Combine files" level="custom" separator="| ">
                <property name="statusMessage" value="Processing complete"/>
                <property name="fileCreation" value="Initiating file merge"/>
                <property expression="$ctx:mergeDirPath" name="sourceDir"/>
                <property expression="$ctx:finalDirPath" name="destDir"/>
                <property expression="$ctx:outputFilePattern" name="pattern"/>
                <property expression="fn:concat('file:///', $ctx:mergeDirPath)" name="sourceDir1" scope="default" type="STRING"/>
                property expression="fn:concat('file:///', $ctx:finalDirPath)" name="destDir1" scope="default" type="STRING"/>
                </log>
                <fileconnector.mergeFiles>
                    <source>{$ctx:mergeDirPath}</source>
                    <destination>{$ctx:finalDirPath}</destination>
                    <filePattern>{$ctx:outputFilePattern}</filePattern>
                </fileconnector.mergeFiles>
                <log description="Processing complete" level="custom" separator="| ">
                    <property name="doneMessage" value="File merge processing complete"/>
                </log>
        </inSequence>
        <outSequence/>
        <faultSequence>
            <log level="custom">
                <property name="text" value="An unexpected error occured"/>
                <property expression="get-property('ERROR_MESSAGE')" name="message"/>
                <property expression="get-property('ERROR_DETAIL')" name="errordetail"/>
            </log>
            <send description="Send Error Information"/>
        </faultSequence>
    </target>
</proxy>

I'm invoking the service with the following parameters as a JSON file

{
  "mergeDirPath": "C://temp//merge//",
  "finalDirPath": "C://temp//final//finalcontent.txt",
  "outputFilePattern": "\\*txt"
}

When I call the service after deploying the artifacts to the ESB engine, it creates an empty file in the destination path without merging the contents of the files in the source directory. This is the extract from the WSO2 logs.

[2020-03-23 12:48:36,683] []  INFO - LogMediator To: /services/FileMergeProxy,MessageID: urn:uuid:b569ec6a-d4fe-4763-a0ca-fb2eb868a31e correlation_id : a1c542bb-7fac-4e0b-9582-8cb1a605f618,Direction: request,Payload: { "mergeDirPath": "C://temp//merge//",  "finalDirPath": "C://temp//final//finalcontent.txt",  "outputFilePattern": "\\*txt" }
[2020-03-23 12:49:00,422] []  INFO - LogMediator statusMessage = Combine files| fileCreation = Initiating file merge| sourceDir = C://temp//merge//| destDir = C://temp//final//finalcontent.txt| pattern = \*txt| sourceDir1 = file:///C://temp//merge//| destDir1 = file:///C://temp//final//finalcontent.txt
[2020-03-23 12:49:02,943] []  INFO - LogMediator doneMessage = File merge processing complete

Unless I'm missing something here, shouldn't the mergeFiles be doing exactly that - merge the contents of files in a specified directory ? Any helpful suggestions or pointers are welcome. Thanks in advance.

Upvotes: 0

Views: 143

Answers (1)

dilmi dulanjali
dilmi dulanjali

Reputation: 61

According to the proxy you have shared, you have defined properties inside the log mediator. Define the properties outside the log mediator.

Upvotes: 2

Related Questions