/*
* 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.synapse.core.axis2;
import org.apache.axiom.soap.SOAPEnvelope;
import org.apache.axis2.AxisFault;
import org.apache.axis2.Constants;
import org.apache.axis2.addressing.EndpointReference;
import org.apache.axis2.addressing.RelatesTo;
import org.apache.axis2.client.OperationClient;
import org.apache.axis2.client.Options;
import org.apache.axis2.context.ConfigurationContext;
import org.apache.axis2.context.MessageContext;
import org.apache.axis2.context.ServiceContext;
import org.apache.axis2.description.ClientUtils;
import org.apache.axis2.description.OutInAxisOperation;
import org.apache.axis2.description.TransportOutDescription;
import org.apache.axis2.engine.AxisEngine;
import org.apache.axis2.i18n.Messages;
import org.apache.axis2.transport.TransportUtils;
import org.apache.axis2.util.TargetResolver;
import org.apache.axis2.wsdl.WSDLConstants;
import org.apache.synapse.SynapseConstants;
import org.apache.synapse.transport.nhttp.NhttpConstants;
import javax.xml.namespace.QName;
/**
* DynamicAxisOperation which switch dynamically between MEPs
*/
public class DynamicAxisOperation extends OutInAxisOperation {
public DynamicAxisOperation() {
super();
}
public DynamicAxisOperation(QName name) {
super(name);
}
public OperationClient createClient(ServiceContext sc, Options options) {
return new DynamicOperationClient(this, sc, options);
}
static class DynamicOperationClient extends OperationClient {
DynamicOperationClient(OutInAxisOperation axisOp, ServiceContext sc, Options options) {
super(axisOp, sc, options);
}
/**
* same as OutInAxisOperationClient
*/
public void addMessageContext(MessageContext mc) throws AxisFault {
mc.setServiceContext(sc);
if (mc.getMessageID() == null) {
setMessageID(mc);
}
axisOp.registerOperationContext(mc, oc);
}
/**
* same as OutInAxisOperationClient
*/
public MessageContext getMessageContext(String messageLabel) throws AxisFault {
return oc.getMessageContext(messageLabel);
}
public void executeImpl(boolean block) throws AxisFault {
// if the MEP is completed, throw a fault
if (completed) {
throw new AxisFault(Messages.getMessage("mepiscomplted"));
}
// if the OUT message is not set on the operation context, throw a fault
MessageContext outMsgCtx = oc.getMessageContext(WSDLConstants.MESSAGE_LABEL_OUT_VALUE);
if (outMsgCtx == null) {
throw new AxisFault(Messages.getMessage("outmsgctxnull"));
}
ConfigurationContext cfgCtx = sc.getConfigurationContext();
// set ClientOptions to the current outgoing message
outMsgCtx.setOptions(options);
// do Target Resolution
TargetResolver tr = cfgCtx.getAxisConfiguration().getTargetResolverChain();
if (tr != null) {
tr.resolveTarget(outMsgCtx);
}
// if the transport to use for sending is not specified, try to find it from the URL
TransportOutDescription transportOut = options.getTransportOut();
if (transportOut == null) {
EndpointReference toEPR =
(options.getTo() != null) ? options.getTo() : outMsgCtx.getTo();
transportOut =
ClientUtils.inferOutTransport(cfgCtx.getAxisConfiguration(), toEPR, outMsgCtx);
}
outMsgCtx.setTransportOut(transportOut);
if (options.getTransportIn() == null && outMsgCtx.getTransportIn() == null) {
outMsgCtx.setTransportIn(ClientUtils.inferInTransport(
cfgCtx.getAxisConfiguration(), options, outMsgCtx));
} else if (outMsgCtx.getTransportIn() == null) {
outMsgCtx.setTransportIn(options.getTransportIn());
}
// add reference parameters to To EPR
addReferenceParameters(outMsgCtx);
if (options.isUseSeparateListener()) {
options.setTransportIn(outMsgCtx.getConfigurationContext()
.getAxisConfiguration().getTransportIn(Constants.TRANSPORT_HTTP));
SynapseCallbackReceiver callbackReceiver =
(SynapseCallbackReceiver) axisOp.getMessageReceiver();
((Axis2MessageContext)((AsyncCallback)
axisCallback).getSynapseOutMsgCtx()).getAxis2MessageContext().setProperty(
NhttpConstants.IGNORE_SC_ACCEPTED, Constants.VALUE_TRUE);
callbackReceiver.addCallback(outMsgCtx.getMessageID(), axisCallback);
EndpointReference replyToFromTransport = outMsgCtx.getConfigurationContext()
.getListenerManager().getEPRforService(sc.getAxisService().getName(),
axisOp.getName().getLocalPart(), outMsgCtx.getTransportOut().getName());
if (outMsgCtx.getReplyTo() == null) {
outMsgCtx.setReplyTo(replyToFromTransport);
} else {
outMsgCtx.getReplyTo().setAddress(replyToFromTransport.getAddress());
}
outMsgCtx.getConfigurationContext().registerOperationContext(
outMsgCtx.getMessageID(), oc);
AxisEngine.send(outMsgCtx);
// Options object reused so soapAction needs to be removed so
// that soapAction+wsa:Action on response don't conflict
options.setAction("");
} else {
SynapseCallbackReceiver callbackReceiver =
(SynapseCallbackReceiver) axisOp.getMessageReceiver();
callbackReceiver.addCallback(outMsgCtx.getMessageID(), axisCallback);
send(outMsgCtx);
}
}
private void send(MessageContext msgctx) throws AxisFault {
// create the responseMessageContext and set that its related to the current outgoing
// message, so that it could be tied back to the original request even if the response
// envelope does not contain addressing headers
MessageContext responseMessageContext = new MessageContext();
responseMessageContext.setMessageID(msgctx.getMessageID());
responseMessageContext.setProperty(
SynapseConstants.RELATES_TO_FOR_POX, msgctx.getMessageID());
responseMessageContext.setOptions(options);
responseMessageContext.setServerSide(true);
addMessageContext(responseMessageContext);
responseMessageContext.setProperty("synapse.send", "true");
AxisEngine.send(msgctx);
// did the engine receive a immediate synchronous response?
// e.g. sometimes the transport sender may listen for a syncronous reply
if (msgctx.getProperty(MessageContext.TRANSPORT_IN) != null) {
responseMessageContext.setOperationContext(msgctx.getOperationContext());
responseMessageContext.setAxisMessage(
msgctx.getOperationContext().getAxisOperation().
getMessage(WSDLConstants.MESSAGE_LABEL_IN_VALUE));
responseMessageContext.setAxisService(msgctx.getAxisService());
responseMessageContext.setProperty(MessageContext.TRANSPORT_OUT,
msgctx.getProperty(MessageContext.TRANSPORT_OUT));
responseMessageContext.setProperty(org.apache.axis2.Constants.OUT_TRANSPORT_INFO,
msgctx.getProperty(org.apache.axis2.Constants.OUT_TRANSPORT_INFO));
responseMessageContext.setProperty(
org.apache.synapse.SynapseConstants.ISRESPONSE_PROPERTY, Boolean.TRUE);
responseMessageContext.setTransportIn(msgctx.getTransportIn());
responseMessageContext.setTransportOut(msgctx.getTransportOut());
// If request is REST assume that the responseMessageContext is REST too
responseMessageContext.setDoingREST(msgctx.isDoingREST());
responseMessageContext.setProperty(MessageContext.TRANSPORT_IN,
msgctx.getProperty(MessageContext.TRANSPORT_IN));
responseMessageContext.setTransportIn(msgctx.getTransportIn());
responseMessageContext.setTransportOut(msgctx.getTransportOut());
// Options object reused above so soapAction needs to be removed so
// that soapAction+wsa:Action on response don't conflict
responseMessageContext.setSoapAction("");
if (responseMessageContext.getEnvelope() == null) {
// If request is REST we assume the responseMessageContext is
// REST, so set the variable
Options options = responseMessageContext.getOptions();
if (options != null) {
RelatesTo relatesTo = options.getRelatesTo();
if (relatesTo != null) {
relatesTo.setValue(msgctx.getMessageID());
} else {
options.addRelatesTo(new RelatesTo(msgctx.getMessageID()));
}
}
SOAPEnvelope resenvelope =
TransportUtils.createSOAPMessage(responseMessageContext);
if (resenvelope != null) {
responseMessageContext.setEnvelope(resenvelope);
AxisEngine.receive(responseMessageContext);
if (responseMessageContext.getReplyTo() != null) {
sc.setTargetEPR(responseMessageContext.getReplyTo());
}
complete(msgctx);
} else {
throw new AxisFault(
Messages.getMessage("blockingInvocationExpectsResponse"));
}
}
}
}
}
}