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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.tuscany.sca.binding.ws.axis2.provider;
import java.lang.reflect.InvocationTargetException;
import java.util.logging.Logger;
import javax.xml.namespace.QName;
import org.apache.axiom.om.OMElement;
import org.apache.axiom.soap.SOAPHeader;
import org.apache.axis2.AxisFault;
import org.apache.axis2.addressing.AddressingConstants;
import org.apache.axis2.addressing.AddressingFaultsHelper;
import org.apache.axis2.context.MessageContext;
import org.apache.tuscany.sca.assembly.AssemblyFactory;
import org.apache.tuscany.sca.assembly.Endpoint;
import org.apache.tuscany.sca.assembly.EndpointReference;
import org.apache.tuscany.sca.binding.ws.WebServiceBinding;
import org.apache.tuscany.sca.binding.ws.WebServiceBindingFactory;
import org.apache.tuscany.sca.core.ExtensionPointRegistry;
import org.apache.tuscany.sca.core.FactoryExtensionPoint;
import org.apache.tuscany.sca.core.assembly.RuntimeAssemblyFactory;
import org.apache.tuscany.sca.interfacedef.Operation;
import org.apache.tuscany.sca.invocation.Message;
import org.apache.tuscany.sca.invocation.MessageFactory;
import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
public class TuscanyServiceProvider {
private static final Logger logger = Logger.getLogger(TuscanyServiceProvider.class.getName());
public static final QName QNAME_WSA_ADDRESS =
new QName(AddressingConstants.Final.WSA_NAMESPACE, AddressingConstants.EPR_ADDRESS);
public static final QName QNAME_WSA_FROM =
new QName(AddressingConstants.Final.WSA_NAMESPACE, AddressingConstants.WSA_FROM);
public static final QName QNAME_WSA_REPLYTO =
new QName(AddressingConstants.Final.WSA_NAMESPACE, AddressingConstants.WSA_REPLY_TO);
public static final QName QNAME_WSA_REFERENCE_PARAMETERS =
new QName(AddressingConstants.Final.WSA_NAMESPACE, AddressingConstants.EPR_REFERENCE_PARAMETERS);
public static final QName QNAME_WSA_MESSAGEID =
new QName(AddressingConstants.Final.WSA_NAMESPACE, AddressingConstants.WSA_MESSAGE_ID);
private RuntimeEndpoint endpoint;
private WebServiceBinding wsBinding;
private MessageFactory messageFactory;
private FactoryExtensionPoint modelFactories;
private RuntimeAssemblyFactory assemblyFactory;
private WebServiceBindingFactory webServiceBindingFactory;
private Operation operation;
public TuscanyServiceProvider(ExtensionPointRegistry extensionPoints,
RuntimeEndpoint endpoint,
WebServiceBinding wsBinding,
Operation operation) {
this.endpoint = endpoint;
this.wsBinding = wsBinding;
this.operation = operation;
this.modelFactories = extensionPoints.getExtensionPoint(FactoryExtensionPoint.class);
this.messageFactory = modelFactories.getFactory(MessageFactory.class);
this.assemblyFactory = (RuntimeAssemblyFactory)modelFactories.getFactory(AssemblyFactory.class);
this.webServiceBindingFactory = (WebServiceBindingFactory)modelFactories.getFactory(WebServiceBindingFactory.class);
}
// Special WS_Addressing values
private static String WS_ADDR_ANONYMOUS = "http://www.w3.org/2005/08/addressing/anonymous";
private static String WS_ADDR_NONE = "http://www.w3.org/2005/08/addressing/none";
/**
* Check if the received callback address has either of the special WS-Addressing forms which are outlawed by the
* Web Service Binding specification [BWS50004]
* @param callbackAddress - the received callback address
* @param inMC - the Axis message context for the received forward call
* @throws AxisFault - throws a "OnlyNonAnonymousAddressSupportedFault" if the callback address has either of the special forms
*/
private void checkCallbackAddress( String callbackAddress, MessageContext inMC ) throws AxisFault {
// If the address is anonymous or none, throw a SOAP fault...
if( WS_ADDR_ANONYMOUS.equals(callbackAddress) || WS_ADDR_NONE.equals(callbackAddress) ) {
AddressingFaultsHelper.triggerOnlyNonAnonymousAddressSupportedFault(inMC, "wsa:From");
}
} // end method checkCallbackAddress
public OMElement invoke(OMElement requestOM, MessageContext inMC) throws InvocationTargetException, AxisFault {
String callbackAddress = null;
String callbackID = null;
// create a message object and set the args as its body
Message msg = messageFactory.createMessage();
Object[] args = new Object[] {requestOM};
msg.setBody(args);
msg.setOperation(operation);
msg.setBindingContext(inMC);
//FIXME: can we use the Axis2 addressing support for this?
SOAPHeader header = inMC.getEnvelope().getHeader();
if (header != null) {
callbackAddress = handleCallbackAddress( header, msg );
// Retrieve other callback-related headers
handleMessageIDHeader( header, msg );
} // end if
// Create a from EPR to hold the details of the callback endpoint
EndpointReference from = null;
if (callbackAddress != null ) {
// Check for special (& not allowed!) WS_Addressing values
checkCallbackAddress( callbackAddress, inMC );
//
from = assemblyFactory.createEndpointReference();
Endpoint fromEndpoint = assemblyFactory.createEndpoint();
from.setTargetEndpoint(fromEndpoint);
from.setStatus(EndpointReference.Status.WIRED_TARGET_FOUND_AND_MATCHED);
msg.setFrom(from);
Endpoint callbackEndpoint = assemblyFactory.createEndpoint();
//
WebServiceBinding cbBinding = webServiceBindingFactory.createWebServiceBinding();
cbBinding.setURI(callbackAddress);
callbackEndpoint.setBinding(cbBinding);
//
callbackEndpoint.setURI(callbackAddress);
callbackEndpoint.setUnresolved(true);
from.setCallbackEndpoint(callbackEndpoint);
}
Message response = endpoint.invoke(msg);
if(response.isFault()) {
throw new InvocationTargetException((Throwable) response.getBody());
}
return response.getBody();
} // end method
private static String WS_REF_PARMS = "WS_REFERENCE_PARAMETERS";
private String handleCallbackAddress( SOAPHeader header, Message msg ) {
String callbackAddress = null;
OMElement from = header.getFirstChildWithName(QNAME_WSA_FROM);
if( from == null ) from = header.getFirstChildWithName(QNAME_WSA_REPLYTO);
if (from != null) {
OMElement callbackAddrElement = from.getFirstChildWithName(QNAME_WSA_ADDRESS);
if (callbackAddrElement != null) {
if (endpoint.getService().getInterfaceContract().getCallbackInterface() != null) {
callbackAddress = callbackAddrElement.getText();
}
OMElement refParms = from.getFirstChildWithName(QNAME_WSA_REFERENCE_PARAMETERS);
if( refParms != null ) msg.getHeaders().put(WS_REF_PARMS, refParms);
}
} // end if
return callbackAddress;
} // end method handleCallbackAddress
private static String WS_MESSAGE_ID = "WS_MESSAGE_ID";
/**
* Handle a SOAP wsa:MessageID header - place the contents into the Tuscany message for use by any callback
* @param header - the SOAP Headers
* @param msg - the Tuscany Message
*/
private void handleMessageIDHeader( SOAPHeader header, Message msg ) {
if( header == null ) return;
OMElement messageID = header.getFirstChildWithName(QNAME_WSA_MESSAGEID);
if (messageID != null) {
String idValue = messageID.getText();
// Store the value of the message ID element into the message under "WS_MESSAGE_ID"...
msg.getHeaders().put(WS_MESSAGE_ID, idValue);
} // end if
} // end method handleMessageID
}
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