update local entry in wso2 esb via servce

问题

Is there any way by which, I can update local entry from esb service. I have to store a token in global variable and need to update it when it is expired. I want to keep it in local entry. Looks like I can not update it from ESB service/sequence.

<localEntry key="TestLocalEntry" xmlns="http://ws.apache.org/ns/synapse"><![CDATA[TestValue]]></localEntry>

回答1:

If you requirement is to store a global variable and not really update a local entry, you can use esb registry

Try this js to create / update an entry in governance registry (and store current payload xml in this sample) :

<script language="js"><![CDATA[         
    importPackage(Packages.org.apache.synapse.config);          
    mc.getConfiguration().getRegistry().newResource("gov:/trunk/test/MyEntry.xml",false);
    mc.getConfiguration().getRegistry().updateResource("gov:/trunk/test/MyEntry.xml",mc.getPayloadXML().toString());    
]]></script>

Try this xpath expression in your mediation to read the entry :

get-property('gov:/trunk/test/MyEntry.xml')

回答2:

I have managed to fix this problem with java script.

To get property value use :

  <script language="js"><![CDATA[var Token = mc.getEnvironment().getServerContextInformation().getProperty("TokenVal");
     mc.setProperty("TokenVal",Token);]]></script>
<property expression="$ctx:TokenVal" name="TokenValue"
        type="STRING" xmlns:ns="http://org.apache.synapse/xsd"/>

and to update value use:

 <script language="js"><![CDATA[var TokenValue = mc.getProperty("TokenValue");
        mc.getEnvironment().getServerContextInformation().addProperty("TokenVal",TokenValue);
        ]]></script>

but even then, I want to use registry resources if we have any in wso2 esb

来源：https://stackoverflow.com/questions/46542477/update-local-entry-in-wso2-esb-via-servce

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