org.eclipse.linuxtools.lttng.ui.tests/src/org/eclipse/linuxtools/lttng/ui/tests/control/model/component/TraceControlTestFacility.java

   1 /*******************************************************************************
   2  * Copyright (c) 2011 Ericsson
   3  *
   4  * All rights reserved. This program and the accompanying materials are
   5  * made available under the terms of the Eclipse Public License v1.0 which
   6  * accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *   Bernd Hufmann - Initial API and implementation
  11  *******************************************************************************/
  12 package org.eclipse.linuxtools.lttng.ui.tests.control.model.component;
  13
  14 import org.eclipse.core.runtime.jobs.Job;
  15 import org.eclipse.linuxtools.lttng.ui.views.control.ControlView;
  16 import org.eclipse.swt.widgets.Display;
  17 import org.eclipse.ui.IViewPart;
  18 import org.eclipse.ui.PartInitException;
  19 import org.eclipse.ui.PlatformUI;
  20
  21 /**
  22  *  Singleton class to facilitate the test cases. Creates UML2SD view and loader objects as well as provides
  23  *  utility methods for interacting with the loader/view.
  24  */
  25 public class TraceControlTestFacility {
  26
  27     // ------------------------------------------------------------------------
  28     // Constants
  29     // ------------------------------------------------------------------------
  30
  31     final static public int WAIT_FOR_JOBS_DELAY = 1000;
  32     final static public int GUI_REFESH_DELAY = 500;
  33
  34     // ------------------------------------------------------------------------
  35     // Attributes
  36     // ------------------------------------------------------------------------
  37     private static TraceControlTestFacility fInstance = null;
  38     private ControlView fControlView = null;
  39     private boolean fIsInitialized = false;
  40
  41     // ------------------------------------------------------------------------
  42     // Constructors
  43     // ------------------------------------------------------------------------
  44     private TraceControlTestFacility() {
  45     }
  46
  47     // ------------------------------------------------------------------------
  48     // Operations
  49     // ------------------------------------------------------------------------
  50     public static TraceControlTestFacility getInstance() {
  51         if (fInstance == null) {
  52             fInstance = new TraceControlTestFacility();
  53         }
  54         return fInstance;
  55     }
  56
  57     /**
  58      * Initial the test facility.
  59      */
  60     public void init() {
  61
  62         if (!fIsInitialized) {
  63
  64             IViewPart view;
  65             try {
  66                 view = PlatformUI.getWorkbench()
  67                                  .getActiveWorkbenchWindow()
  68                                  .getActivePage()
  69                                  .showView(ControlView.ID);
  70
  71             } catch (PartInitException e) {
  72                 throw new RuntimeException(e);
  73             }
  74
  75             fControlView = (ControlView) view;
  76
  77             delay(3000);
  78             fIsInitialized = true;
  79         }
  80     }
  81
  82
  83     public void dispose() {
  84         if (fIsInitialized) {
  85             waitForJobs();
  86
  87             PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().hideView(fControlView);
  88             fIsInitialized = false;
  89         }
  90     }
  91
  92     public void delay(long waitTimeMillis) {
  93         Display display = Display.getCurrent();
  94         if (display != null) {
  95             long endTimeMillis = System.currentTimeMillis() + waitTimeMillis;
  96             while(System.currentTimeMillis() < endTimeMillis) {
  97                 if (!display.readAndDispatch()) {
  98                     display.sleep();
  99                 }
 100                 display.update();
 101             }
 102         } else {
 103             try {
 104                 Thread.sleep(waitTimeMillis);
 105             } catch (InterruptedException e) {
 106                 // Ignored
 107             }
 108         }
 109     }
 110
 111     /**
 112      * Waits for all Eclipse jobs to finish
 113      */
 114     public void waitForJobs() {
 115         while (!Job.getJobManager().isIdle()) {
 116             delay(WAIT_FOR_JOBS_DELAY);
 117         }
 118     }
 119
 120
 121     /**
 122      * @return current control view
 123      */
 124     public ControlView getControlView() {
 125         return fControlView;
 126     }
 127 }