JcmdExecutor.java revision 2224:2a8815d86b93 
1/*
2 * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24package jdk.test.lib.dcmd;
25
26import jdk.test.lib.JDKToolFinder;
27import jdk.test.lib.process.OutputAnalyzer;
28import jdk.test.lib.process.ProcessTools;
29
30import java.util.List;
31
32/**
33 * Base class for Diagnostic Command Executors using the jcmd tool
34 */
35public abstract class JcmdExecutor extends CommandExecutor {
36    protected String jcmdBinary;
37
38    protected abstract List<String> createCommandLine(String cmd) throws CommandExecutorException;
39
40    protected JcmdExecutor() {
41        jcmdBinary = JDKToolFinder.getJDKTool("jcmd");
42    }
43
44    protected OutputAnalyzer executeImpl(String cmd) throws CommandExecutorException {
45        List<String> commandLine = createCommandLine(cmd);
46
47        try {
48            System.out.printf("Executing command '%s'%n", commandLine);
49            OutputAnalyzer output = ProcessTools.executeProcess(new ProcessBuilder(commandLine));
50            System.out.printf("Command returned with exit code %d%n", output.getExitValue());
51
52            return output;
53        } catch (Exception e) {
54            String message = String.format("Caught exception while executing '%s'", commandLine);
55            throw new CommandExecutorException(message, e);
56        }
57    }
58}
59