org.apache.catalina.core.JasperListener Maven / Gradle / Ivy
/*
* 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.catalina.core;
import org.apache.catalina.Lifecycle;
import org.apache.catalina.LifecycleEvent;
import org.apache.catalina.LifecycleListener;
import org.apache.juli.logging.Log;
import org.apache.juli.logging.LogFactory;
import org.apache.tomcat.util.ExceptionUtils;
import org.apache.tomcat.util.res.StringManager;
/**
* This listener is designed to initialize Jasper before any web applications are
* started.
*
* @author Remy Maucherat
* @version $Id: JasperListener.java 1026801 2010-10-24 14:04:56Z markt $
* @since 4.1
*/
public class JasperListener
implements LifecycleListener {
private static final Log log = LogFactory.getLog(JasperListener.class);
/**
* The string manager for this package.
*/
protected static final StringManager sm =
StringManager.getManager(Constants.Package);
// ---------------------------------------------- LifecycleListener Methods
/**
* Primary entry point for startup and shutdown events.
*
* @param event The event that has occurred
*/
@Override
public void lifecycleEvent(LifecycleEvent event) {
if (Lifecycle.BEFORE_INIT_EVENT.equals(event.getType())) {
try {
// Set JSP factory
Class.forName("org.apache.jasper.compiler.JspRuntimeContext",
true,
this.getClass().getClassLoader());
} catch (Throwable t) {
ExceptionUtils.handleThrowable(t);
// Should not occur, obviously
log.warn("Couldn't initialize Jasper", t);
}
// Another possibility is to do directly:
// JspFactory.setDefaultFactory(new JspFactoryImpl());
}
}
}