1 
   2 /*
   3  * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This code is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 only, as
   8  * published by the Free Software Foundation.
   9  *
  10  * This code is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * version 2 for more details (a copy is included in the LICENSE file that
  14  * accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  */
  24 
  25 import nsk.share.*;
  26 import nsk.share.jpda.*;
  27 import nsk.share.jdi.*;
  28 
  29 import java.nio.file.FileSystems;
  30 import java.nio.file.Path;
  31 
  32 /**
  33  * Launches a new Java process that uses a communication pipe to interact
  34  * with the test.
  35  */
  36 
  37 public class TestProcessLauncher {
  38 
  39     protected static final Path USER_DIR = FileSystems.getDefault().getPath(System.getProperty("user.dir", "."));
  40     protected static final Path TEST_CLASSES_DIR = FileSystems.getDefault().getPath(System.getProperty("test.classes"));
  41 
  42     protected final String className;
  43     private final ArgumentHandler argHandler;
  44 
  45     private IOPipe pipe;
  46 
  47     public TestProcessLauncher(String className, ArgumentHandler argHandler) {
  48         this.className = className;
  49         this.argHandler = argHandler;
  50     }
  51 
  52     public TestProcessLauncher(String className) {
  53         this(className, new ArgumentHandler(new String[0]));
  54     }
  55 
  56     public Process launch() {
  57 
  58         String java = argHandler.getLaunchExecPath();
  59 
  60         Log log = new Log(System.out, argHandler);
  61         Binder binder = new Binder(argHandler, log);
  62         binder.prepareForPipeConnection(argHandler);
  63 
  64         String cmd = prepareLaunch(java, argHandler.getPipePort());
  65 
  66         Debugee debuggee = binder.startLocalDebugee(cmd);
  67         debuggee.redirectOutput(log);
  68 
  69         pipe = new IOPipe(debuggee);
  70 
  71         String line = pipe.readln();
  72         if (!"ready".equals(line)) {
  73             System.out.println("Wrong reply received:" + line);
  74         }
  75         return debuggee.getProcess();
  76     }
  77 
  78     public void quit() {
  79         if (pipe != null) {
  80             pipe.println("quit");
  81         }
  82     }
  83 
  84     protected String prepareLaunch(String javaExec, String pipePort) {
  85         return  javaExec + " " + className + " -pipe.port=" + pipePort;
  86     }
  87 
  88 }