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/*
 * Copyright 2002-2012 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.weblogic;

import java.lang.instrument.ClassFileTransformer;

import org.springframework.instrument.classloading.LoadTimeWeaver;
import org.springframework.util.Assert;
import org.springframework.util.ClassUtils;

/**
 * {@link LoadTimeWeaver} implementation for WebLogic's instrumentable
 * ClassLoader.
 *
 * 

NOTE: Requires BEA WebLogic version 10 or higher. * * @author Costin Leau * @author Juergen Hoeller * @since 2.5 */ public class WebLogicLoadTimeWeaver implements LoadTimeWeaver { private final WebLogicClassLoaderAdapter classLoader; /** * Creates a new instance of the {@link WebLogicLoadTimeWeaver} class using * the default {@link ClassLoader class loader}. * @see org.springframework.util.ClassUtils#getDefaultClassLoader() */ public WebLogicLoadTimeWeaver() { this(ClassUtils.getDefaultClassLoader()); } /** * Creates a new instance of the {@link WebLogicLoadTimeWeaver} class using * the supplied {@link ClassLoader}. * @param classLoader the {@code ClassLoader} to delegate to for * weaving (must not be {@code null}) */ public WebLogicLoadTimeWeaver(ClassLoader classLoader) { Assert.notNull(classLoader, "ClassLoader must not be null"); this.classLoader = new WebLogicClassLoaderAdapter(classLoader); } @Override public void addTransformer(ClassFileTransformer transformer) { this.classLoader.addTransformer(transformer); } @Override public ClassLoader getInstrumentableClassLoader() { return this.classLoader.getClassLoader(); } @Override public ClassLoader getThrowawayClassLoader() { return this.classLoader.getThrowawayClassLoader(); } }





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