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package com.sun.enterprise.webservice;
import java.lang.reflect.Method;
import java.rmi.UnmarshalException;
import javax.xml.namespace.QName;
import javax.xml.rpc.JAXRPCException;
import javax.xml.rpc.handler.Handler;
import javax.xml.rpc.handler.GenericHandler;
import javax.xml.rpc.handler.HandlerInfo;
import javax.xml.rpc.handler.MessageContext;
import com.sun.enterprise.Switch;
import com.sun.ejb.Container;
import com.sun.ejb.Invocation;
import com.sun.enterprise.InvocationManager;
import java.util.logging.Logger;
import java.util.logging.Level;
import com.sun.logging.LogDomains;
/**
* This handler is inserted last in the handler chain for an
* ejb web service endpoint. It ensures that the application handlers
* did not change anything in the soap message that would change the
* dispatch method.
*
* @author Kenneth Saks
*/
public class EjbContainerPostHandler extends GenericHandler {
private static Logger logger =
LogDomains.getLogger(LogDomains.EJB_LOGGER);
private WsUtil wsUtil = new WsUtil();
public EjbContainerPostHandler() {}
public QName[] getHeaders() {
return new QName[0];
}
public boolean handleRequest(MessageContext context) {
Invocation inv = null;
boolean continueProcessing = true;
try {
Switch theSwitch = Switch.getSwitch();
InvocationManager invManager = theSwitch.getInvocationManager();
inv = (Invocation) invManager.getCurrentInvocation();
Container container = (Container) inv.container;
Method webServiceMethodInPreHandler = inv.getWebServiceMethod();
if( webServiceMethodInPreHandler != null ) {
// Now that application handlers have run, do another method
// lookup and compare the results with the original one. This
// ensures that the application handlers have not changed
// the message context in any way that would impact which
// method is invoked.
Method postHandlerMethod =
wsUtil.getInvMethod(inv.getWebServiceTie(), context);
if( !webServiceMethodInPreHandler.equals(postHandlerMethod) ) {
inv.exception = new UnmarshalException
("Original method " + webServiceMethodInPreHandler +
" does not match post-handler method " +
postHandlerMethod);
}
}
} catch(Exception e) {
String errorMsg = "Exception while getting method for " +
((inv != null ) ?
((Container) inv.container).getEjbDescriptor().getName() : "");
inv.exception = new UnmarshalException(errorMsg);
inv.exception.initCause(e);
}
if( inv.exception != null ) {
logger.log(Level.WARNING, "postEjbHandlerError", inv.exception);
wsUtil.throwSOAPFaultException(inv.exception.getMessage(),
context);
}
return true;
}
}