/*
* Copyright 2013 Red Hat Inc. and/or its affiliates and other contributors.
*
* 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.switchyard.deployment;
import org.jboss.logging.Logger;
import org.switchyard.standalone.SwitchYard;
import org.switchyard.deploy.internal.AbstractDeployment;
import javax.servlet.ServletContext;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import java.io.IOException;
import java.io.InputStream;
/**
* SwitchYard Web Application Deployer.
* <p/>
* {@link ServletContextListener} implementation that allows SwitchYard be deployed as part of
* a JEE Web Application.
*
* @author <a href="mailto:tom.fennelly@gmail.com">tom.fennelly@gmail.com</a>
*/
public class WebApplicationDeployer implements ServletContextListener {
private static Logger _logger = Logger.getLogger(WebApplicationDeployer.class);
private SwitchYard _switchyard;
@Override
public void contextInitialized(ServletContextEvent sce) {
ServletContext servletContext = sce.getServletContext();
InputStream switchYardConfig = servletContext.getResourceAsStream("WEB-INF/classes/" + AbstractDeployment.SWITCHYARD_XML);
if (switchYardConfig != null) {
try {
_switchyard = new SwitchYard(switchYardConfig);
_switchyard.start();
} catch (IOException e) {
_logger.debug("Error deploying SwitchYard within Web Application '" + servletContext.getServletContextName() + "'. SwitchYard not deployed.", e);
}
} else {
_logger.debug("No SwitchYard configuration found at '" + AbstractDeployment.SWITCHYARD_XML + "' in Web Application '" + servletContext.getServletContextName() + "'. SwitchYard not deployed.");
}
}
@Override
public void contextDestroyed(ServletContextEvent sce) {
if (_switchyard != null) {
_switchyard.stop();
}
}
}