Method 1: Using the org.openspml.v2.transport.RPCRouterServlet Servlet

As with SPML 1.0, you can enable tracing for SPML 2.0 when initializing the org.openspml.v2.transport.RPCRouterServlet class, which controls the output of RPC traffic information for the servlet handling SPML 2.0 requests.

To enable this tracing method, add the following to the WEB-INF/web.xml file:

<servlet>
    <servlet-name>openspmlRouter</servlet-name>
    <display-name>OpenSPML SOAP Router</display-name>
    <description>A router of RPC traffic - nominally SPML 2.0 over SOAP</description>
    <servlet-class>
        org.openspml.v2.transport.RPCRouterServlet
    </servlet-class>
    <init-param>
      <param-name>trace</param-name>
      <param-value>true</param-value>
    </init-param>
    ...
  </servlet>

The following example illustrates output from an rpcrouter servlet trace:

RPCRouterServlet:
<?xml version='1.0' encoding='UTF-8'?><SOAP-ENV:Envelope
xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"><SOAP-ENV:Header/>
<SOAP-ENV:Body><lookupRequest
xmlns='urn:oasis:names:tc:SPML:2:0' requestID='random name' executionMode='synchronous'
returnData='everything'>
<openspml:operationalNameValuePair xmlns:openspml='urn:org:openspml:v2:util:xml' name='
session'value=session token'/>
<psoID ID='random name' targetID='spml2-DSML-Target'/>
</lookupRequest>
</SOAP-ENV:Body></SOAP-ENV:Envelope>

RPCRouterServlet:  response:
<?xml version='1.0' encoding='UTF-8'?>
<SOAP-ENV:Envelope

  xmlns:SOAP-ENV='http://schemas.xmlsoap.org/soap/envelope/'>
<SOAP-ENV:Body>
<lookupResponse xmlns='urn:oasis:names:tc:SPML:2:0' status='failure' requestID='random 
name'error='noSuchIdentifier'>
<openspml:operationalNameValuePair xmlns:openspml='urn:org:openspml:v2:util:xml' 
name='session'

value=session token/>
<errorMessage>Item User:random name was not found in the repository, it may have been 
deleted in another session.</errorMessage>
</lookupResponse>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>

For more information see Method 2: Initializing the org.openspml.server.SOAPRouter Servlet, in the To Enable Tracing for SPML 1.0 section.