/*
* 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.axis2.AxisFault;
import org.apache.axis2.wsdl.WSDLConstants;
import org.apache.axis2.description.AxisService;
import org.apache.axis2.description.AxisMessage;
import org.apache.axis2.description.OutOnlyAxisOperation;
import org.apache.axis2.engine.AxisConfiguration;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.synapse.SynapseConstants;
import org.apache.synapse.SynapseException;
import org.apache.synapse.config.SynapseConfiguration;
import javax.xml.namespace.QName;
/**
* Returns an anonymous service for the given QoS. If an instance does not already
* exist, create one and set it to the Axis configuration
*/
public class AnonymousServiceFactory {
private static final Log log = LogFactory.getLog(AnonymousServiceFactory.class);
private static final String NONE = "__NONE__";
private static final String ADDR_ONLY = "__ADDR_ONLY__";
private static final String RM_AND_ADDR = "__RM_AND_ADDR__";
private static final String SEC_AND_ADDR = "__SEC_AND_ADDR__";
private static final String RM_SEC_AND_ADDR = "__RM_SEC_AND_ADDR__";
public static final String OUT_IN_OPERATION = "__OUT_IN_OPERATION__";
public static final String OUT_ONLY_OPERATION = "__OUT_ONLY_OPERATION__";
private static SynapseCallbackReceiver synapseCallbackReceiver = null;
/**
* Creates an AxisService for the requested QoS for sending out messages
* Callers must guarantee that if wsRMon or wsSecOn is required, that wsAddrOn is also set
* @param axisCfg Axis2 configuration
* @param wsAddrOn
* @param wsRMOn
* @param wsSecOn
* @return An Axis service for the requested QoS
*/
public static AxisService getAnonymousService(SynapseConfiguration synCfg,
AxisConfiguration axisCfg, boolean wsAddrOn,
boolean wsRMOn, boolean wsSecOn) {
String servicekey = null;
if (!wsAddrOn) {
servicekey = NONE;
} else {
if (!wsSecOn && !wsRMOn) {
servicekey = ADDR_ONLY;
} else if (wsRMOn && !wsSecOn) {
servicekey = RM_AND_ADDR;
} else if (wsSecOn && !wsRMOn) {
servicekey = SEC_AND_ADDR;
} else {
servicekey = RM_SEC_AND_ADDR;
}
}
try {
AxisService service = axisCfg.getService(servicekey);
if (service == null) {
synchronized (AnonymousServiceFactory.class) {
// fix with double locking, issue found on performance test
service = axisCfg.getService(servicekey);
if (service != null) {
return service;
}
service = createAnonymousService(synCfg, axisCfg, servicekey);
if (wsAddrOn) {
service.engageModule(axisCfg.getModule(
SynapseConstants.ADDRESSING_MODULE_NAME), axisCfg);
if (wsRMOn) {
service.engageModule(axisCfg.getModule(
SynapseConstants.SANDESHA2_MODULE_NAME), axisCfg);
}
if (wsSecOn) {
service.engageModule(axisCfg.getModule(
SynapseConstants.RAMPART_MODULE_NAME), axisCfg);
}
}
// if WS-A is off, WS-Sec and WS-RM should be too
}
}
return service;
} catch (AxisFault e) {
handleException("Error retrieving anonymous service for QoS : " + servicekey, e);
}
return null;
}
private static void handleException(String msg, Exception e) {
log.error(msg, e);
throw new SynapseException(msg, e);
}
/**
* Create a new Anonymous Axis service for OUT-IN as default MEP
* @param axisCfg the Axis2 configuration
* @return an anonymous service named with the given QoS key
*/
private static AxisService createAnonymousService(SynapseConfiguration synCfg,
AxisConfiguration axisCfg, String serviceKey) {
try {
DynamicAxisOperation dynamicOperation =
new DynamicAxisOperation(new QName(OUT_IN_OPERATION));
dynamicOperation.setMessageReceiver(getCallbackReceiver(synCfg));
AxisMessage inMsg = new AxisMessage();
inMsg.setName("in-message");
inMsg.setParent(dynamicOperation);
AxisMessage outMsg = new AxisMessage();
outMsg.setName("out-message");
outMsg.setParent(dynamicOperation);
dynamicOperation.addMessage(inMsg, WSDLConstants.MESSAGE_LABEL_OUT_VALUE);
dynamicOperation.addMessage(outMsg, WSDLConstants.MESSAGE_LABEL_IN_VALUE);
OutOnlyAxisOperation asyncOperation =
new OutOnlyAxisOperation(new QName(OUT_ONLY_OPERATION));
asyncOperation.setMessageReceiver(getCallbackReceiver(synCfg));
AxisMessage outOnlyMsg = new AxisMessage();
outOnlyMsg.setName("out-message");
outOnlyMsg.setParent(asyncOperation);
asyncOperation.addMessage(outMsg, WSDLConstants.MESSAGE_LABEL_OUT_VALUE);
AxisService axisAnonymousService = new AxisService(serviceKey);
axisAnonymousService.addOperation(dynamicOperation);
axisAnonymousService.addOperation(asyncOperation);
axisCfg.addService(axisAnonymousService);
axisCfg.getPhasesInfo().setOperationPhases(dynamicOperation);
return axisAnonymousService;
} catch (AxisFault e) {
handleException(
"Error occured while creating an anonymous service for QoS : " +
serviceKey, e);
}
return null;
}
/**
* Create a single callback receiver if required, and return its reference
* @param synCfg the Synapse configuration
* @return the callback receiver thats created or now exists
*/
private static synchronized SynapseCallbackReceiver getCallbackReceiver(
SynapseConfiguration synCfg) {
if (synapseCallbackReceiver == null) {
synapseCallbackReceiver = new SynapseCallbackReceiver(synCfg);
}
return synapseCallbackReceiver;
}
}