Mercurial > hg > truffle
view test/testlibrary/com/oracle/java/testlibrary/JDKToolLauncher.java @ 17513:1d8728efc05f
Added tag hs25-b69 for changeset 32f017489ba5
author | amurillo |
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date | Tue, 28 Jan 2014 15:00:36 -0800 |
parents | b658cfe35857 |
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/* * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code 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 * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.oracle.java.testlibrary; import java.util.ArrayList; import java.util.Arrays; import java.util.List; /** * A utility for constructing command lines for starting JDK tool processes. * * The JDKToolLauncher can in particular be combined with a * java.lang.ProcessBuilder to easily run a JDK tool. For example, the following * code run {@code jmap -heap} against a process with GC logging turned on for * the {@code jmap} process: * * <pre> * {@code * JDKToolLauncher jmap = JDKToolLauncher.create("jmap") * .addVMArg("-XX:+PrintGC"); * .addVMArg("-XX:+PrintGCDetails") * .addToolArg("-heap") * .addToolArg(pid); * ProcessBuilder pb = new ProcessBuilder(jmap.getCommand()); * Process p = pb.start(); * } * </pre> */ public class JDKToolLauncher { private final String executable; private final List<String> vmArgs = new ArrayList<String>(); private final List<String> toolArgs = new ArrayList<String>(); private JDKToolLauncher(String tool, boolean useCompilerJDK) { if (useCompilerJDK) { executable = JDKToolFinder.getJDKTool(tool); } else { executable = JDKToolFinder.getTestJDKTool(tool); } vmArgs.addAll(Arrays.asList(ProcessTools.getPlatformSpecificVMArgs())); } /** * Creates a new JDKToolLauncher for the specified tool. Using tools path * from the compiler JDK. * * @param tool * The name of the tool * @return A new JDKToolLauncher */ public static JDKToolLauncher create(String tool) { return new JDKToolLauncher(tool, true); } /** * Creates a new JDKToolLauncher for the specified tool in the Tested JDK. * * @param tool * The name of the tool * * @return A new JDKToolLauncher */ public static JDKToolLauncher createUsingTestJDK(String tool) { return new JDKToolLauncher(tool, false); } /** * Adds an argument to the JVM running the tool. * * The JVM arguments are passed to the underlying JVM running the tool. * Arguments will automatically be prepended with "-J". * * Any platform specific arguments required for running the tool are * automatically added. * * * @param arg * The argument to VM running the tool * @return The JDKToolLauncher instance */ public JDKToolLauncher addVMArg(String arg) { vmArgs.add(arg); return this; } /** * Adds an argument to the tool. * * @param arg * The argument to the tool * @return The JDKToolLauncher instance */ public JDKToolLauncher addToolArg(String arg) { toolArgs.add(arg); return this; } /** * Returns the command that can be used for running the tool. * * @return An array whose elements are the arguments of the command. */ public String[] getCommand() { List<String> command = new ArrayList<String>(); command.add(executable); // Add -J in front of all vmArgs for (String arg : vmArgs) { command.add("-J" + arg); } command.addAll(toolArgs); return command.toArray(new String[command.size()]); } }