001/*
002 * (C) Copyright 2006-2008 Nuxeo SAS (http://nuxeo.com/) and contributors.
003 *
004 * All rights reserved. This program and the accompanying materials
005 * are made available under the terms of the GNU Lesser General Public License
006 * (LGPL) version 2.1 which accompanies this distribution, and is available at
007 * http://www.gnu.org/licenses/lgpl.html
008 *
009 * This library is distributed in the hope that it will be useful,
010 * but WITHOUT ANY WARRANTY; without even the implied warranty of
011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
012 * Lesser General Public License for more details.
013 *
014 * Contributors:
015 *     bstefanescu
016 */
017package org.nuxeo.ecm.webengine.loader;
018
019import java.io.InputStream;
020import java.net.URL;
021
022import org.nuxeo.ecm.webengine.loader.store.ResourceStore;
023import org.nuxeo.ecm.webengine.loader.store.ResourceStoreClassLoader;
024
025/**
026 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a>
027 */
028public class ReloadingClassLoader extends ClassLoader {
029
030    private final ClassLoader parent;
031
032    private volatile ResourceStoreClassLoader delegate;
033
034    public ReloadingClassLoader(final ClassLoader pParent) {
035        super(pParent);
036        parent = pParent;
037        delegate = new ResourceStoreClassLoader(parent);
038    }
039
040    public void addResourceStore(final ResourceStore store) {
041        delegate.addStore(store);
042    }
043
044    public boolean removeResourceStore(final ResourceStore store) {
045        return delegate.removeStore(store);
046    }
047
048    public synchronized void reload() {
049        delegate = delegate.clone();
050    }
051
052    @Override
053    public void clearAssertionStatus() {
054        delegate.clearAssertionStatus();
055    }
056
057    @Override
058    public URL getResource(String name) {
059        return delegate.getResource(name);
060    }
061
062    @Override
063    public InputStream getResourceAsStream(String name) {
064        return delegate.getResourceAsStream(name);
065    }
066
067    @Override
068    public Class<?> loadClass(String name) throws ClassNotFoundException {
069        return delegate.loadClass(name);
070    }
071
072    @Override
073    public synchronized Class<?> loadClass(String name, boolean resolve) throws ClassNotFoundException {
074        return delegate.loadClass(name, resolve);
075    }
076
077    @Override
078    public void setClassAssertionStatus(String className, boolean enabled) {
079        delegate.setClassAssertionStatus(className, enabled);
080    }
081
082    @Override
083    public void setDefaultAssertionStatus(boolean enabled) {
084        delegate.setDefaultAssertionStatus(enabled);
085    }
086
087    @Override
088    public void setPackageAssertionStatus(String packageName, boolean enabled) {
089        delegate.setPackageAssertionStatus(packageName, enabled);
090    }
091
092}