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MQSeries.net Forum Index » WebSphere Process Server (WID/WPS/WAS+) » Service Gateway route on payload data?

Service Gateway route on payload data?

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eskil

Posted: Mon Nov 23, 2009 1:11 am Post subject: Service Gateway route on payload data?

Novice

Joined: 25 Nov 2008
Posts: 14

Anyone have experience on how to get the ServiceGateWay to route on the payload data? Binding is SOAP/HTTP 1.1 and I want to route on the operation and namespace of the request (i.e "getData" + "http://namespace.to.route.on" in the example below)

Code:

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:isn="http://namespace.to.route.on">
<soapenv:Header>
...
</soapenv:Header>
<soapenv:Body>
<isn:getData>
...
</isn:getData>
</soapenv:Body>
</soapenv:Envelope>

When the message reaches the mediation flow in the SGW module the data in the body of the SMO is named "message" (type: anyType) and the namespace is set to the one defined in the interface of the SGW which in a way make sense.

Not sure how to solve this, but is there any way to not "type" the incoming message, or to read the source XML instead?

eskil

Posted: Wed Nov 25, 2009 1:52 am Post subject:

Novice

Joined: 25 Nov 2008
Posts: 14

After hours of testing and pulling my hair I solved it. Perhaps someone else will stumble upon this problem later on so here is how I solved it.

The ServiceGateway is generated from the wizard (binding: HTTP/SOAP 1.1)

Created a business object (i.e "CommonData") that had a string called "compositeKey". Added the CommonData BO as the correlation context on the input primitive in the mediation flow.

After LogMessage I added a Custom Mediation primitive with the following code:

Java Imports:

Code:

import com.ibm.ws.webservices.engine.utils.XMLUtils;
import org.w3c.dom.Document;
import java.io.StringReader;
import org.xml.sax.InputSource;

Java Code:

Code:

/**
* GENERATED COMMENT - DO NOT MODIFY
* Variables: for output terminals - out (com.ibm.wsspi.sibx.mediation.OutputTerminal)
* for user properties - <No user properties defined>
* Inputs: inputTerminal (com.ibm.wsspi.sibx.mediation.InputTerminal), smo (com.ibm.websphere.sibx.smobo.ServiceMessageObject)
* Exceptions: com.ibm.wsspi.sibx.mediation.MediationConfigurationException, com.ibm.wsspi.sibx.mediation.MediationBusinessException
*/

Document bodyDoc;
String operation;
String namespace;

try {
bodyDoc = XMLUtils.newDocument(new InputSource(new StringReader(smo.getString("/body/message/value"))));
operation = bodyDoc.getDocumentElement().getNodeName();
namespace = bodyDoc.getDocumentElement().getNamespaceURI();
} catch(Exception e) {
operation = "";
namespace = "";
}

// Remove namespace prefix
if(operation.indexOf(":") > -1) {
operation = operation.substring(operation.indexOf(":")+1);
}

// Set composite key string (used by Database Lookup)
smo.setString("/context/correlation/compositeKey", namespace + "|" + operation);

out.fire(smo); // propagate the service message object to the primitive that is wired to the 'out' terminal

Then configure the Database Lookup to use "/context/correlation/compositeKey" when querying the database table.

You might want to remove or change the try/catch so you get a proper exception that you can return to the consumer.

Hope this might help someone.. GL!

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