/*
* Copyright 2002-2009 the original author or authors.
*
* Licensed 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.springframework.instrument.classloading.jboss;
import java.lang.instrument.ClassFileTransformer;
import org.springframework.instrument.classloading.LoadTimeWeaver;
import org.springframework.instrument.classloading.SimpleThrowawayClassLoader;
import org.springframework.util.Assert;
import org.springframework.util.ClassUtils;
/**
* {@link LoadTimeWeaver} implementation for JBoss's instrumentable ClassLoader.
*
* <p><b>NOTE:</b> Requires JBoss AS version 5.0.0 or higher.
*
* <p>Thanks to Ales Justin and Marius Bogoevici for the initial prototype.</p>
*
* @author Costin Leau
* @since 3.0
*/
public class JBossLoadTimeWeaver implements LoadTimeWeaver {
private final JBossClassLoaderAdapter classLoader;
/**
* Create a new instance of the {@link JBossLoadTimeWeaver} class using
* the default {@link ClassLoader class loader}.
* @see org.springframework.util.ClassUtils#getDefaultClassLoader()
*/
public JBossLoadTimeWeaver() {
this(ClassUtils.getDefaultClassLoader());
}
/**
* Create a new instance of the {@link JBossLoadTimeWeaver} class using
* the supplied {@link ClassLoader}.
* @param classLoader the <code>ClassLoader</code> to delegate to for
* weaving (must not be <code>null</code>)
*/
public JBossLoadTimeWeaver(ClassLoader classLoader) {
Assert.notNull(classLoader, "ClassLoader must not be null");
this.classLoader = new JBossClassLoaderAdapter(classLoader);
}
public void addTransformer(ClassFileTransformer transformer) {
this.classLoader.addTransformer(transformer);
}
public ClassLoader getInstrumentableClassLoader() {
return this.classLoader.getClassLoader();
}
public ClassLoader getThrowawayClassLoader() {
return new SimpleThrowawayClassLoader(getInstrumentableClassLoader());
}
}
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