/*
* Copyright 2009 the original author or authors.
*
* 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 de.hybris.yfaces;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Arrays;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import org.apache.log4j.Logger;
import org.apache.log4j.PropertyConfigurator;
import org.springframework.web.context.ConfigurableWebApplicationContext;
import org.springframework.web.context.support.XmlWebApplicationContext;
import de.hybris.yfaces.context.YApplicationContext;
/**
* YFaces startup. Reads configuration and initializes runtime properties.
*
* @author Denny.Strietzbaum
*/
public class YFacesStartupListener implements ServletContextListener {
private static final Logger log = Logger.getLogger(YFacesStartupListener.class);
private static final String PARAM_YFACES_CTX = "yfaces-context";
private static final String DEFAULT_YFACES_CTX = "/META-INF/yfaces-context.xml";
private static final String log4jCfg = "/WEB-INF/yfaces-log4j.properties";
public void contextDestroyed(ServletContextEvent arg0) {
// TODO Auto-generated method stub
}
public void contextInitialized(ServletContextEvent arg0) {
this.configureSpring(arg0);
this.configureLogging(arg0);
}
/**
* Configures Spring.
*/
private void configureSpring(ServletContextEvent arg0) {
ConfigurableWebApplicationContext ctx = new XmlWebApplicationContext();
ctx.setServletContext(arg0.getServletContext());
URL defaultConfig = YFacesStartupListener.class.getResource(DEFAULT_YFACES_CTX);
String[] configs = new String[] { defaultConfig.toExternalForm() };
try {
String yfacesCtx = arg0.getServletContext().getInitParameter(PARAM_YFACES_CTX);
if (yfacesCtx != null) {
URL customConfig = arg0.getServletContext().getResource(yfacesCtx);
configs = new String[] { configs[0], customConfig.toExternalForm() };
}
log.debug("Using spring configuration:" + Arrays.asList(configs));
ctx.setConfigLocations(configs);
ctx.refresh();
new YApplicationContext(ctx);
} catch (MalformedURLException e) {
e.printStackTrace();
}
}
/**
* Configures log4j.
*/
private void configureLogging(ServletContextEvent arg0) {
try {
URL url = arg0.getServletContext().getResource(log4jCfg);
if (url != null) {
System.out.println(log4jCfg
+ " found; this overwrites any previous log4j configurations!");
PropertyConfigurator.configure(url);
}
} catch (MalformedURLException e) {
e.printStackTrace();
}
}
}