1/*
2 * Copyright (c) 2015, 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 common;
25
26import java.nio.file.Path;
27import java.nio.file.Paths;
28import jdk.test.lib.Platform;
29
30/**
31 * A tool, such as jstat, jmap, etc Specific tools are defined as subclasses
32 * parameterized by their corresponding ToolResults subclasses
33 */
34public abstract class TmTool<T extends ToolResults> {
35
36    private final Class<T> resultsClz;
37    private final String cmdLine;
38
39    public TmTool(Class<T> resultsClz, String toolName, String otherArgs) {
40        this.resultsClz = resultsClz;
41        this.cmdLine = adjustForTestJava(toolName) + " " + otherArgs;
42    }
43
44    /**
45     * Runs the tool to completion and returns the results
46     *
47     * @return the tool results
48     * @throws Exception if anything goes wrong
49     */
50    public T measure() throws Exception {
51        ToolRunner runner = new ToolRunner(cmdLine);
52        ToolResults rawResults = runner.runToCompletion();
53        System.out.println("Process output: " + rawResults);
54        return resultsClz.getDeclaredConstructor(ToolResults.class).newInstance(rawResults);
55    }
56
57    private String adjustForTestJava(String toolName) {
58        // We need to make sure we are running the tol from the JDK under testing
59        String jdkPath = System.getProperty("test.jdk");
60        if (jdkPath == null || !Paths.get(jdkPath).toFile().exists()) {
61            throw new RuntimeException("property test.jdk not not set");
62        }
63        Path toolPath = Paths.get("bin", toolName + (Platform.isWindows() ? ".exe" : ""));
64        return Paths.get(jdkPath, toolPath.toString()).toString();
65    }
66
67}
68