Mercurial > hg > release > thermostat-1.6
view vm-profiler/jvm-agent/src/main/java/com/redhat/thermostat/vm/profiler/agent/jvm/ProfilerInstrumentor.java @ 2049:a92d602216ad
Update copyright license headers for 2017
PR3290
Reviewed-by: jerboaa
Review-thread: http://icedtea.classpath.org/pipermail/thermostat/2017-January/021974.html
author | Andrew Azores <aazores@redhat.com> |
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date | Tue, 17 Jan 2017 12:19:56 -0500 |
parents | 95d4e43f484f |
children |
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/* * Copyright 2012-2017 Red Hat, Inc. * * This file is part of Thermostat. * * Thermostat is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published * by the Free Software Foundation; either version 2, or (at your * option) any later version. * * Thermostat 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 * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with Thermostat; see the file COPYING. If not see * <http://www.gnu.org/licenses/>. * * Linking this code with other modules is making a combined work * based on this code. Thus, the terms and conditions of the GNU * General Public License cover the whole combination. * * As a special exception, the copyright holders of this code give * you permission to link this code with independent modules to * produce an executable, regardless of the license terms of these * independent modules, and to copy and distribute the resulting * executable under terms of your choice, provided that you also * meet, for each linked independent module, the terms and conditions * of the license of that module. An independent module is a module * which is not derived from or based on this code. If you modify * this code, you may extend this exception to your version of the * library, but you are not obligated to do so. If you do not wish * to do so, delete this exception statement from your version. */ package com.redhat.thermostat.vm.profiler.agent.jvm; import java.lang.instrument.ClassFileTransformer; import java.lang.instrument.IllegalClassFormatException; import java.security.ProtectionDomain; import java.util.ArrayList; import java.util.List; import java.util.regex.Pattern; public abstract class ProfilerInstrumentor implements ClassFileTransformer { private static List<Pattern> ignorePackageRegexps = new ArrayList<Pattern>(); static { // jdk packages ignorePackageRegexps.add(Pattern.compile("java\\..*")); ignorePackageRegexps.add(Pattern.compile("javax\\..*")); ignorePackageRegexps.add(Pattern.compile("com\\.sun\\..*")); ignorePackageRegexps.add(Pattern.compile("sun\\..*")); ignorePackageRegexps.add(Pattern.compile("jdk\\..*")); // this class ignorePackageRegexps.add(Pattern.compile("com\\.redhat\\.thermostat\\.vm\\.profiler\\.agent\\.jvm\\..*")); // our dependencies: shaded asm ignorePackageRegexps.add(Pattern.compile("com\\.redhat\\.thermostat\\.vm\\.profiler\\.agent\\.asm\\..*")); } @Override public byte[] transform(ClassLoader loader, String className, Class<?> classBeingRedefined, ProtectionDomain protectionDomain, byte[] classfileBuffer) throws IllegalClassFormatException { if (!loader.equals(classBeingRedefined.getClassLoader())) { String message = "ERROR: classloader " + loader + " didn't load " + className; Debug.println(message); throw new AssertionError(message); } className = className.replace('/', '.'); if (!shouldInstrument(className)) { return null; } // System.out.println("transforming '" + className + "'"); return transform(loader, className, classfileBuffer); } public boolean shouldInstrument(Class<?> clazz) { if (clazz.isArray()) { return false; } // TODO what to do with anonymous classes? return shouldInstrument(clazz.getName()); } public boolean shouldInstrument(String className) { if (className == null) { return true; } for (Pattern packagePattern : ignorePackageRegexps) { if (packagePattern.matcher(className).matches()) { return false; } } if (className.startsWith(ProfilerInstrumentor.class.getName())) { return false; } return true; } public abstract byte[] transform(ClassLoader cl, String className, byte[] classBytes); }