001/*
002 * (C) Copyright 2010 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 *     Nuxeo - initial API and implementation
016 */
017
018package org.nuxeo.runtime.management.metrics;
019
020import org.nuxeo.runtime.api.Framework;
021
022public class NuxeoClassLoaderInjector {
023
024    protected static final ThreadLocal<ClassLoader> ctx = new ThreadLocal<ClassLoader>();
025
026    public static void replace() {
027        if (ctx.get() != null) {
028            return;
029        }
030        ctx.set(Thread.currentThread().getContextClassLoader());
031        Thread.currentThread().setContextClassLoader(Framework.class.getClassLoader());
032    }
033
034    public static void restore() {
035        Thread.currentThread().setContextClassLoader(ctx.get());
036        ctx.remove();
037    }
038
039}