/* | |
* 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.struts2.osgi; | |
import org.apache.logging.log4j.Logger; | |
import org.apache.logging.log4j.LogManager; | |
import org.apache.struts2.StrutsException; | |
import org.apache.struts2.osgi.host.OsgiHost; | |
import javax.servlet.ServletContext; | |
import javax.servlet.ServletContextEvent; | |
import javax.servlet.ServletContextListener; | |
/** | |
* ServletContextListener that starts Osgi host | |
*/ | |
public class StrutsOsgiListener implements ServletContextListener { | |
public static final String OSGI_HOST = "__struts_osgi_host"; | |
public static final String PLATFORM_KEY = "struts.osgi.host"; | |
private static final Logger LOG = LogManager.getLogger(StrutsOsgiListener.class); | |
private OsgiHost osgiHost; | |
public void contextInitialized(ServletContextEvent sce) { | |
ServletContext servletContext = sce.getServletContext(); | |
String platform = servletContext.getInitParameter(PLATFORM_KEY); | |
LOG.debug("Defined OSGi platform as [{}] via context-param [{}]", platform, PLATFORM_KEY); | |
osgiHost = OsgiHostFactory.createOsgiHost(platform); | |
servletContext.setAttribute(OSGI_HOST, osgiHost); | |
try { | |
osgiHost.init(servletContext); | |
} catch (Exception e) { | |
throw new StrutsException("Cannot init OSGi platform!", e); | |
} | |
} | |
public void contextDestroyed(ServletContextEvent sce) { | |
try { | |
osgiHost.destroy(); | |
} catch (Exception e) { | |
throw new StrutsException("Cannot stop OSGi platform!", e); | |
} | |
} | |
} |