/* * Copyright 2017 NAVER Corp. * * 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 com.navercorp.pinpoint.profiler.instrument.classloading; import java.io.InputStream; import com.navercorp.pinpoint.exception.PinpointException; import com.navercorp.pinpoint.profiler.instrument.BootstrapPackage; import com.navercorp.pinpoint.profiler.instrument.classloading.ClassInjector; /** * @author Woonduk Kang(emeroad) */ public class DebugTransformerClassInjector implements ClassInjector { private final BootstrapPackage bootstrapPackage = new BootstrapPackage(); public DebugTransformerClassInjector() { } @Override @SuppressWarnings("unchecked") public <T> Class<? extends T> injectClass(ClassLoader classLoader, String className) { ClassLoader targetClassLoader = getClassLoader(classLoader); targetClassLoader = filterBootstrapPackage(targetClassLoader, className); try { return (Class<? extends T>) targetClassLoader.loadClass(className); } catch (ClassNotFoundException e) { throw new PinpointException("ClassNo class " + className + " with classLoader " + classLoader, e); } } @Override public InputStream getResourceAsStream(ClassLoader classLoader, String classPath) { ClassLoader targetClassLoader = getClassLoader(classLoader); targetClassLoader = filterBootstrapPackage(targetClassLoader, classPath); return targetClassLoader.getResourceAsStream(classPath); } private static ClassLoader getClassLoader(ClassLoader classLoader) { if (classLoader == null) { return ClassLoader.getSystemClassLoader(); } return classLoader; } private ClassLoader filterBootstrapPackage(ClassLoader classLoader, String classPath) { if (bootstrapPackage.isBootstrapPackage(classPath)) { return ClassLoader.getSystemClassLoader(); } return classLoader; } }