| RPCProvider.java |
/*
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 2001-2003 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Axis" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
package org.jboss.axis.providers.java;
import org.jboss.axis.AxisFault;
import org.jboss.axis.MessageContext;
import org.jboss.axis.description.OperationDesc;
import org.jboss.axis.message.SOAPEnvelopeAxisImpl;
import org.jboss.axis.utils.Messages;
import org.jboss.logging.Logger;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
/**
* Implement message processing by walking over RPCElements of the
* envelope body, invoking the appropriate methods on the service object.
*
* @author Doug Davis (dug@us.ibm.com)
*/
public class RPCProvider extends JavaProvider
{
private static Logger log = Logger.getLogger(RPCProvider.class.getName());
/**
* The key for the invocation object in the MessageContext
*/
public final static String RPC_INVOCATION = "axis.provider.java.rpc-invocation";
/**
* Process the current message.
* Result in resEnv.
*
* @param msgContext self-explanatory
* @param reqEnv the request envelope
* @param resEnv the response envelope
* @param obj the service object itself
*/
public void processMessage(MessageContext msgContext, SOAPEnvelopeAxisImpl reqEnv, SOAPEnvelopeAxisImpl resEnv, Object obj)
throws Exception
{
if (log.isDebugEnabled())
{
log.debug("Enter: RPCProvider.processMessage()");
}
RPCInvocation invocation = createRPCInvocation(msgContext, reqEnv, resEnv, obj);
invocation.prepareFromRequestEnvelope();
OperationDesc operation = invocation.getOperation();
Object[] argValues = invocation.getArgValues();
// store it in the messsage context, so that ws4ee handlers
// can pick it up and modify the invocation if neccessary
msgContext.setProperty(RPC_INVOCATION, invocation);
// This is a hack that disables AsString representation of the SOAPPart
// for as long as we are processing the message. WS4EE need access to the SOAPEnvelope's DOM model.
// TDI 15-June-2004
reqEnv.setProcessingRPCInvocation(true);
resEnv.setProcessingRPCInvocation(true);
// OK! Now we can invoke the method
try
{
Object resObj = invokeTarget(invocation);
invocation.prepareResponseEnvelope(resObj);
}
catch (IllegalArgumentException e)
{
String methodSig = operation.toString();
String argClasses = "";
for (int i = 0; i < argValues.length; i++)
{
if (argValues[i] == null)
{
argClasses += "null";
}
else
{
argClasses += argValues[i].getClass().getName();
}
if (i + 1 < argValues.length)
{
argClasses += ",";
}
}
log.info(Messages.getMessage("dispatchIAE00", new String[]{methodSig, argClasses}), e);
throw new AxisFault(Messages.getMessage("dispatchIAE00", new String[]{methodSig, argClasses}), e);
}
finally
{
reqEnv.setProcessingRPCInvocation(false);
resEnv.setProcessingRPCInvocation(false);
}
}
public RPCInvocation createRPCInvocation(MessageContext msgContext, SOAPEnvelopeAxisImpl reqEnv, SOAPEnvelopeAxisImpl resEnv, Object obj)
{
RPCInvocation invocation = new RPCInvocation(this, msgContext, reqEnv, resEnv, obj);
return invocation;
}
/**
* Unwraps the invocation and calls invokeMethod
*
* @param invocation The invocation
* @return Return value from invokeMethod
* @throws Exception Any client Exception
*/
protected Object invokeTarget(RPCInvocation invocation) throws Exception
{
MessageContext msgContext = invocation.getMessageContext();
Object targetObject = invocation.getTargetObject();
Method method = invocation.getOperation().getMethod();
Object[] argValues = invocation.getArgValues();
try
{
Object objRes = invokeMethod(msgContext, method, targetObject, argValues);
return objRes;
}
catch (InvocationTargetException e)
{
if (e.getTargetException() instanceof Exception)
throw (Exception)e.getTargetException();
else
throw e;
}
finally
{
msgContext.setPastPivot(true);
}
}
/**
* This method encapsulates the method invocation.
*
* @param msgContext MessageContext
* @param method the target method.
* @param obj the target object
* @param argValues the method arguments
*/
protected Object invokeMethod(MessageContext msgContext, Method method, Object obj, Object[] argValues)
throws Exception
{
return (method.invoke(obj, argValues));
}
/**
* Throw an AxisFault if the requested method is not allowed.
*
* @param msgContext MessageContext
* @param allowedMethods list of allowed methods
* @param methodName name of target method
*/
protected void checkMethodName(MessageContext msgContext, String allowedMethods, String methodName)
throws Exception
{
// Our version doesn't need to do anything, though inherited ones might.
}
}
| RPCProvider.java |