001/*
002 * (C) Copyright 2006-2011 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     bstefanescu
018 */
019package org.nuxeo.ecm.webengine.jaxrs.servlet.config;
020
021import javax.servlet.ServletContextListener;
022
023import org.nuxeo.common.xmap.annotation.XNode;
024import org.nuxeo.common.xmap.annotation.XObject;
025import org.nuxeo.ecm.webengine.jaxrs.BundleNotFoundException;
026import org.nuxeo.ecm.webengine.jaxrs.Utils;
027import org.nuxeo.ecm.webengine.jaxrs.Utils.ClassRef;
028
029/**
030 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a>
031 */
032@XObject("listener")
033public class ListenerDescriptor {
034
035    @XNode("@class")
036    protected String classRef;
037
038    private ClassRef ref;
039
040    public ClassRef getClassRef() throws ClassNotFoundException, BundleNotFoundException {
041        if (ref == null) {
042            ref = Utils.getClassRef(classRef);
043        }
044        return ref;
045    }
046
047    public ServletContextListener getListener() throws ReflectiveOperationException, BundleNotFoundException {
048        return (ServletContextListener) getClassRef().get().newInstance();
049    }
050
051    @Override
052    public String toString() {
053        return classRef;
054    }
055
056}