1 /*
   2  * Copyright (c) 2014, 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.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 import java.util.Arrays;
  27 
  28 import jdk.testlibrary.JDKToolLauncher;
  29 import jdk.testlibrary.OutputAnalyzer;
  30 import jdk.testlibrary.ProcessTools;
  31 
  32 /**
  33  *  The helper class for running jinfo utility.
  34  */
  35 public final class JInfoHelper {
  36 
  37     /**
  38      * Print configuration information for the current process
  39      *
  40      * @param toolArgs List of jinfo options
  41      */
  42     public static OutputAnalyzer jinfo(String... toolArgs) throws Exception {
  43         return jinfo(true, toolArgs);
  44     }
  45 
  46     /**
  47      * Print usage information
  48      *
  49      * @param toolArgs List of jinfo options
  50      */
  51     public static OutputAnalyzer jinfoNoPid(String... toolArgs) throws Exception {
  52         return jinfo(false, toolArgs);
  53     }
  54 
  55     private static OutputAnalyzer jinfo(boolean toPid, String... toolArgs) throws Exception {
  56         JDKToolLauncher launcher = JDKToolLauncher.createUsingTestJDK("jinfo");
  57         if (toolArgs != null) {
  58             for (String toolArg : toolArgs) {
  59                 launcher.addToolArg(toolArg);
  60             }
  61         }
  62         if (toPid) {
  63             launcher.addToolArg(Long.toString(ProcessTools.getProcessId()));
  64         }
  65 
  66         ProcessBuilder processBuilder = new ProcessBuilder(launcher.getCommand());
  67         System.out.println(Arrays.toString(processBuilder.command().toArray()).replace(",", ""));
  68         OutputAnalyzer output = ProcessTools.executeProcess(processBuilder);
  69         System.out.println(output.getOutput());
  70 
  71         return output;
  72     }
  73 
  74 }