124 lines
4.0 KiB
Java
124 lines
4.0 KiB
Java
/*
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* Copyright (c) 2013, 2016, 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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package toolbox;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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/**
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* A task to configure and run the disassembler tool, javap.
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*/
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public class JavapTask extends AbstractTask<JavapTask> {
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private String classpath;
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private List<String> options;
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private List<String> classes;
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/**
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* Create a task to execute {@code javap} using {@code CMDLINE} mode.
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* @param toolBox the {@code ToolBox} to use
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*/
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public JavapTask(ToolBox toolBox) {
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super(toolBox, Task.Mode.CMDLINE);
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}
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/**
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* Sets the classpath.
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* @param classpath the classpath
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* @return this task object
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*/
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public JavapTask classpath(String classpath) {
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this.classpath = classpath;
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return this;
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}
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/**
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* Sets the options.
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* @param options the options
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* @return this task object
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*/
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public JavapTask options(String... options) {
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this.options = Arrays.asList(options);
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return this;
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}
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/**
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* Sets the classes to be analyzed.
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* @param classes the classes
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* @return this task object
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*/
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public JavapTask classes(String... classes) {
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this.classes = Arrays.asList(classes);
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return this;
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}
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/**
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* {@inheritDoc}
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* @return the name "javap"
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*/
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@Override
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public String name() {
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return "javap";
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}
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/**
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* Calls the javap tool with the arguments as currently configured.
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* @return a Result object indicating the outcome of the task
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* and the content of any output written to stdout, stderr, or the
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* main stream.
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* @throws TaskError if the outcome of the task is not as expected.
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*/
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@Override
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public Task.Result run() {
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List<String> args = new ArrayList<>();
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if (options != null)
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args.addAll(options);
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if (classpath != null) {
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args.add("-classpath");
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args.add(classpath);
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}
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if (classes != null)
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args.addAll(classes);
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AbstractTask.WriterOutput direct = new AbstractTask.WriterOutput();
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// These are to catch output to System.out and System.err,
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// in case these are used instead of the primary streams
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AbstractTask.StreamOutput sysOut = new AbstractTask.StreamOutput(System.out, System::setOut);
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AbstractTask.StreamOutput sysErr = new AbstractTask.StreamOutput(System.err, System::setErr);
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int rc;
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Map<Task.OutputKind, String> outputMap = new HashMap<>();
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try {
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rc = com.sun.tools.javap.Main.run(args.toArray(new String[args.size()]), direct.pw);
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} finally {
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outputMap.put(Task.OutputKind.STDOUT, sysOut.close());
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outputMap.put(Task.OutputKind.STDERR, sysErr.close());
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outputMap.put(Task.OutputKind.DIRECT, direct.close());
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}
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return checkExit(new Task.Result(toolBox, this, rc, outputMap));
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}
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}
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