AbstractStarter


1   /*
2    * All content copyright (c) 2003-2006 Terracotta, Inc., except as may otherwise be noted in a separate copyright notice.  All rights reserved.
3    */
4   package com.tc.aspectwerkz.hook;
5   
6   import java.io.File  ;
7   import java.io.IOException  ;
8   
9   /**
10   * Base class for JVM Process based starter. <p/>Base implementation to lauch a JVM given java options, main class and
11   * args in a separate process.
12   *
13   * @author <a HREF="mailto:alex@gnilux.com">Alexandre Vasseur </a>
14   */
15  abstract class AbstractStarter {
16    protected String   opt;
17  
18    protected String   main;
19  
20    protected AbstractStarter(String   opt, String   main) {
21      this.opt = opt;
22      this.main = main;
23    }
24  
25    /**
26     * return command line that launched the target process
27     */
28    public String   getCommandLine() {
29      StringBuffer   command = new StringBuffer  ();
30      command.append(System.getProperty("java.home"));
31      command.append(File.separatorChar).append("bin").append(File.separatorChar).append("java");
32      command.append(" ").append(opt);
33      command.append(" ").append(main);
34      return command.toString();
35    }
36  
37    /**
38     * launchs target process
39     */
40    public Process   launchVM() throws IOException   {
41      System.out.println(getCommandLine());
42      return Runtime.getRuntime().exec(getCommandLine());
43    }
44  }

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