Policy


1   /*******************************************************************************
2    * Copyright (c) 2000, 2005 IBM Corporation and others.
3    * All rights reserved. This program and the accompanying materials
4    * are made available under the terms of the Eclipse Public License v1.0
5    * which accompanies this distribution, and is available at
6    * http://www.eclipse.org/legal/epl-v10.html
7    * 
8    * Contributors:
9    *     IBM Corporation - initial API and implementation
10   *******************************************************************************/
11  package org.eclipse.core.internal.runtime;
12  
13  import java.util.Date  ;
14  import org.eclipse.core.runtime.*;
15  
16  public class Policy {
17  
18      public static IProgressMonitor monitorFor(IProgressMonitor monitor) {
19          if (monitor == null)
20              return new NullProgressMonitor();
21          return monitor;
22      }
23  
24      public static IProgressMonitor subMonitorFor(IProgressMonitor monitor, int ticks) {
25          if (monitor == null)
26              return new NullProgressMonitor();
27          if (monitor instanceof NullProgressMonitor)
28              return monitor;
29          return new SubProgressMonitor(monitor, ticks);
30      }
31  
32      public static IProgressMonitor subMonitorFor(IProgressMonitor monitor, int ticks, int style) {
33          if (monitor == null)
34              return new NullProgressMonitor();
35          if (monitor instanceof NullProgressMonitor)
36              return monitor;
37          return new SubProgressMonitor(monitor, ticks, style);
38      }
39  
40      /**
41       * Print a debug message to the console. 
42       * Pre-pend the message with the current date and the name of the current thread.
43       */
44      public static void debug(String   message) {
45          StringBuffer   buffer = new StringBuffer  ();
46          buffer.append(new Date  (System.currentTimeMillis()));
47          buffer.append(" - ["); //$NON-NLS-1$
48          buffer.append(Thread.currentThread().getName());
49          buffer.append("] "); //$NON-NLS-1$
50          buffer.append(message);
51          System.out.println(buffer.toString());
52      }
53  }
54
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