/*
* Copyright (c) 2008, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
*
* Licensed 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.wso2.carbon.bpel.ode.integration.utils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.axis2.description.AxisService;
import org.apache.axis2.description.OutOnlyAxisOperation;
import org.apache.axis2.description.OutInAxisOperation;
import org.apache.axis2.engine.AxisConfiguration;
import org.apache.axis2.AxisFault;
import org.apache.axis2.client.ServiceClient;
import org.wso2.carbon.bpel.ode.integration.config.EndpointConfiguration;
import javax.xml.namespace.QName;
/**
* This utility class is inspired by Apache Synapse AnonymousServiceFactory.
*
* Responsible for creating AxisServices to send out messages
*/
public class AnonymousServiceFactory {
private static Log log = LogFactory.getLog(AnonymousServiceFactory.class);
/**
* Create AxisService for the requested endpoint config to sending out messages to external services.
*
* @param serviceName External service QName
* @param servicePort service port
* @param axisConfig AxisConfiguration object
* @return AxisService
*/
public static AxisService getAnonymousService(QName serviceName, String servicePort,
AxisConfiguration axisConfig) {
String serviceKey = "axis_service_for_" + serviceName.getLocalPart() + "#" + servicePort;
try {
AxisService service = axisConfig.getService(serviceKey);
if (service == null) {
synchronized (AnonymousServiceFactory.class) {
/* Fix for bugs due to high concurrency. If there are number of service calls to same service from
* different process instances, two process instances will try to add same service to axis config.
*/
service = axisConfig.getService(serviceKey);
if (service != null) {
return service;
}
service = createAnonymousService(axisConfig, serviceKey);
}
}
return service;
} catch (AxisFault axisFault) {
handleException("Error retrieving service for key " + serviceKey, axisFault);
}
return null;
}
private static void handleException(String msg, Exception e) {
log.error(msg, e);
throw new RuntimeException(msg, e);
}
private static AxisService createAnonymousService(AxisConfiguration axisCfg, String serviceKey) {
try {
OutOnlyAxisOperation outOnlyOperation = new OutOnlyAxisOperation(ServiceClient.ANON_OUT_ONLY_OP);
OutInAxisOperation outInOperation = new OutInAxisOperation(ServiceClient.ANON_OUT_IN_OP);
AxisService axisAnonymousService = new AxisService(serviceKey);
axisAnonymousService.addOperation(outOnlyOperation);
axisAnonymousService.addOperation(outInOperation);
// set a right default action *after* operations have been added to the service.
outOnlyOperation.setSoapAction("");
outInOperation.setSoapAction("");
if (log.isDebugEnabled()) {
log.debug("Creating Client Service: " + serviceKey);
}
axisAnonymousService.setClientSide(true);
axisCfg.addService(axisAnonymousService);
return axisAnonymousService;
} catch (AxisFault axisFault) {
handleException("Adding service to axis configuration failed.", axisFault);
}
return null;
}
}