100 lines
3.4 KiB
Java
100 lines
3.4 KiB
Java
/*
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* Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.util.ArrayList;
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import java.util.Enumeration;
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import java.util.List;
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import java.util.jar.JarEntry;
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import java.util.jar.JarFile;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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abstract class Task<T> implements Runnable {
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private transient boolean working = true;
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private final List<T> methods;
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private final Thread thread;
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Task(List<T> methods) {
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this.methods = methods;
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this.thread = new Thread(this);
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this.thread.start();
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}
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boolean isAlive() {
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return this.thread.isAlive();
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}
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boolean isWorking() {
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boolean working = this.working && this.thread.isAlive();
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this.working = false;
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return working;
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}
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@Override
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public void run() {
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long time = -System.currentTimeMillis();
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for (T method : this.methods) {
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this.working = true;
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try {
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for (int i = 0; i < 100; i++) {
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process(method);
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}
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} catch (NoSuchMethodException ignore) {
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}
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}
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time += System.currentTimeMillis();
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print("thread done in " + time / 1000 + " seconds");
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}
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protected abstract void process(T method) throws NoSuchMethodException;
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static synchronized void print(Object message) {
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System.out.println(message);
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System.out.flush();
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}
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static List<Class<?>> getClasses(int count) throws Exception {
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String resource = ClassLoader.getSystemClassLoader().getResource("java/lang/Object.class").toString();
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Pattern pattern = Pattern.compile("jar:file:(.*)!.*");
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Matcher matcher = pattern.matcher(resource);
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matcher.matches();
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resource = matcher.group(1);
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List<Class<?>> classes = new ArrayList<>();
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try (JarFile jarFile = new JarFile(resource)) {
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Enumeration<JarEntry> entries = jarFile.entries();
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while (entries.hasMoreElements()) {
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String name = entries.nextElement().getName();
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if (name.startsWith("java") && name.endsWith(".class")) {
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classes.add(Class.forName(name.substring(0, name.indexOf(".")).replace('/', '.')));
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if (count == classes.size()) {
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break;
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}
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}
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}
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}
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return classes;
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}
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}
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