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| <title>The SOAP Monitor Module</title> |
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| <h1>Using the SOAP Monitor</h1> |
| |
| <p>Web service developers often have the need to see the SOAP messages being |
| used to invoke Web services along with the results of those messages. The |
| goal of the SOAP Monitor utility is to provide a way for these developers to |
| monitor the SOAP messages being used without requiring any special |
| configuration or restarting of the server.</p> |
| |
| <p>In this utility, a handler has been written and added to the global |
| handler chain. As SOAP requests and responses are received, the SOAP message |
| information is forwarded to a SOAP monitor service where it can be displayed |
| using a Web browser interface. The SOAP message information is accessed by a |
| Web browser by going to http://localhost:8080/axis2/SOAPMonitor (where 8080 |
| is the port number where the application server is running). The SOAP message |
| information is displayed through a Web browser by using an applet that opens |
| a socket connection to the SOAP monitor service. This applet requires a Java |
| plug-in 1.3 or higher to be installed in your browser. If you do not have a |
| correct plug-in, the browser should prompt you to install one. The port used |
| by the SOAP monitor service to communicate with applets is configurable. Edit |
| the web.xml file to change the port used by Axis2 Web application.</p> |
| |
| <p>The SOAP Monitor module (soapmonitor.mar) is available in the axis2.war |
| but it is not engaged by default. The SOAP Monitor is NOT enabled by default |
| for security reasons.</p> |
| |
| <p>The SOAP Monitor can be engaged by inserting the following in the |
| axis2.xml file.</p> |
| <source><pre> <module ref="soapmonitor"/></pre> |
| </source> |
| <p>Then in the axis2.xml file define your phase orders for 'soapmonitorPhase' |
| referenced in the module.xml of soapmonitor.mars. Below is an example which |
| should NOT be copied exactly, since the default phases change occasionally. |
| The important point here is that 'soapmonitorPhase' should be placed under |
| the 'user can add his own phases to this area' comment in the 'inflow', |
| 'outflow', 'INfaultflow', and 'Outfaultflow' sections.</p> |
| <pre> <phaseOrder type="inflow"> |
| <!--System pre defined phases--> |
| <phase name="TransportIn"/> |
| <phase name="PreDispatch"/> |
| <phase name="Dispatch" class="org.apache.axis2.engine.DispatchPhase"> |
| <handler name="AddressingBasedDispatcher" |
| class="org.apache.axis2.engine.AddressingBasedDispatcher"> |
| <order phase="Dispatch"/> |
| </handler> |
| <handler name="RequestURIBasedDispatcher" |
| class="org.apache.axis2.engine.RequestURIBasedDispatcher"> |
| <order phase="Dispatch"/> |
| </handler> |
| <handler name="SOAPActionBasedDispatcher" |
| class="org.apache.axis2.engine.SOAPActionBasedDispatcher"> |
| <order phase="Dispatch"/> |
| </handler> |
| <handler name="SOAPMessageBodyBasedDispatcher" |
| class="org.apache.axis2.engine.SOAPMessageBodyBasedDispatcher"> |
| <order phase="Dispatch"/> |
| </handler> |
| <handler name="InstanceDispatcher" |
| class="org.apache.axis2.engine.InstanceDispatcher"> |
| <order phase="PostDispatch"/> |
| </handler> |
| </phase> |
| <!--System pre defined phases--> |
| <!--After Postdispatch phase module author or or service author can add any phase he want--> |
| <phase name="userphase1"/> |
| <phase name="soapmonitorPhase"/> |
| </phaseOrder> |
| <phaseOrder type="outflow"> |
| <!--user can add his own phases to this area--> |
| <phase name="userphase1"/> |
| <phase name="soapmonitorPhase"/> |
| <!--system predefined phase--> |
| <!--these phase will run irrespective of the service--> |
| <phase name="PolicyDetermination"/> |
| <phase name="MessageOut"/> |
| </phaseOrder> |
| <phaseOrder type="INfaultflow"> |
| <!--user can add his own phases to this area--> |
| <phase name="userphase1"/> |
| <phase name="soapmonitorPhase"/> |
| </phaseOrder> |
| <phaseOrder type="Outfaultflow"> |
| <!--user can add his own phases to this area--> |
| <phase name="userphase1"/> |
| <phase name="soapmonitorPhase"/> |
| <phase name="PolicyDetermination"/> |
| <phase name="MessageOut"/> |
| </phaseOrder></pre> |
| |
| <p>To configure the servlet to communicate with the applet, add the following |
| to web.xml (the SOAPMonitorPort is configurable): </p> |
| <pre> <servlet> |
| <servlet-name>SOAPMonitorService</servlet-name> |
| <display-name>SOAPMonitorService</display-name> |
| <servlet-class> |
| org.apache.axis2.soapmonitor.servlet.SOAPMonitorService |
| </servlet-class> |
| <init-param> |
| <param-name>SOAPMonitorPort</param-name> |
| <param-value>5001</param-value> |
| </init-param> |
| <load-on-startup>1</load-on-startup> |
| </servlet> |
| |
| <servlet-mapping> |
| <servlet-name>SOAPMonitorService</servlet-name> |
| <url-pattern>/SOAPMonitor</url-pattern> |
| </servlet-mapping></pre> |
| |
| <p>Finally, compile the applet classes and place them at the root of the war |
| - for example axis2/SOAPMonitorApplet*.class/WEB-INF :</p> |
| <pre>javac -classpath axis2-soapmonitor.jar SOAPMonitorApplet.java</pre> |
| |
| <p>You can find the SOAPMonitorApplet.java in the source distribution. </p> |
| |
| <p>Alternatively, you can get the compiled applet classes from the |
| axis2-soapmonitor-*.jar from inside the expanded axis2.war under WEB-INF/lib |
| . Simply execute 'jar -xf axis2-soapmonitor-*.jar' and place the applet |
| classes as axis2/SOAPMonitorApplet*.class/WEB-INF. </p> |
| |
| <p>Using a Web browser, go to http[s]://host[:port][/webapp]/SOAPMonitor |
| (e.g.http://localhost:8080/axis2/SOAPMonitor) substituting the correct |
| values for your Web application. This will show the SOAP Monitor applet for |
| viewing service requests and responses. Any requests to services that have |
| been configured and deployed correctly should show up in the applet.</p> |
| |
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