abstractclassloaderisolatedtestcase.java

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/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2007, Red Hat Middleware LLC or third-party contributors as
 * indicated by the @author tags or express copyright attribution
 * statements applied by the authors.  All third-party contributions are
 * distributed under license by Red Hat Middleware LLC.
 *
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution; if not, write to:
 * Free Software Foundation, Inc.
 * 51 Franklin Street, Fifth Floor
 * Boston, MA  02110-1301  USA
 */
package org.hibernate.junit;

/**
 * A specialized TestCase for running tests in an isolated class-loader
 *
 * @author Steve Ebersole
 */
public abstract class AbstractClassLoaderIsolatedTestCase extends UnitTestCase {
	private ClassLoader parentLoader;
	private ClassLoader isolatedLoader;

	public AbstractClassLoaderIsolatedTestCase(String string) {
		super( string );
	}

	protected void setUp() throws Exception {
		parentLoader = Thread.currentThread().getContextClassLoader();
		isolatedLoader = buildIsolatedClassLoader( parentLoader );
		Thread.currentThread().setContextClassLoader( isolatedLoader );
		super.setUp();
	}

	protected void tearDown() throws Exception {
		super.tearDown();
		Thread.currentThread().setContextClassLoader( parentLoader );
		releaseIsolatedClassLoader( isolatedLoader );
		parentLoader = null;
		isolatedLoader = null;
	}

	protected abstract ClassLoader buildIsolatedClassLoader(ClassLoader parent);

	protected abstract void releaseIsolatedClassLoader(ClassLoader isolatedLoader);
}