org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/internal/tmf/ui/project/handlers/TracePropertyTester.java

   1 /*******************************************************************************
   2  * Copyright (c) 2012 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  *   Francois Chouinard - Initial API and implementation
  11  *******************************************************************************/
  12
  13 package org.eclipse.linuxtools.internal.tmf.ui.project.handlers;
  14
  15 import java.util.Iterator;
  16
  17 import org.eclipse.core.expressions.PropertyTester;
  18 import org.eclipse.jface.viewers.IStructuredSelection;
  19 import org.eclipse.linuxtools.tmf.ui.project.model.TmfExperimentElement;
  20 import org.eclipse.linuxtools.tmf.ui.project.model.TmfTraceElement;
  21 import org.eclipse.linuxtools.tmf.ui.project.model.TmfTraceFolder;
  22
  23 /**
  24  * <b><u>TracePropertyTester</u></b>
  25  * <p>
  26  */
  27 public class TracePropertyTester extends PropertyTester {
  28
  29     // ------------------------------------------------------------------------
  30     // Constants
  31     // ------------------------------------------------------------------------
  32
  33     private static String isInTraceFolder = "isInTraceFolder"; //$NON-NLS-1$
  34     private static String isExperimentTrace = "isExperimentTrace"; //$NON-NLS-1$
  35     private static String hasSupplementaryFiles = "hasSupplementaryFiles"; //$NON-NLS-1$
  36
  37     // ------------------------------------------------------------------------
  38     // Constructor
  39     // ------------------------------------------------------------------------
  40
  41     /**
  42      * Default constructor
  43      */
  44     public TracePropertyTester() {
  45     }
  46
  47     // ------------------------------------------------------------------------
  48     // IPropertyTester
  49     // ------------------------------------------------------------------------
  50
  51     /* (non-Javadoc)
  52      * @see org.eclipse.core.expressions.IPropertyTester#test(java.lang.Object, java.lang.String, java.lang.Object[], java.lang.Object)
  53      */
  54     @Override
  55     public boolean test(Object receiver, String property, Object[] args, Object expectedValue) {
  56
  57         // Check if the selected elements are in the trace folder
  58         if (isInTraceFolder.equals(property)) {
  59             if (receiver != null && receiver instanceof IStructuredSelection) {
  60                 Iterator<?> iter = ((IStructuredSelection) receiver).iterator();
  61                 while (iter.hasNext()) {
  62                     Object item = iter.next();
  63                     if (item instanceof TmfTraceElement) {
  64                         TmfTraceElement trace = (TmfTraceElement) item;
  65                         if (!(trace.getParent() instanceof TmfTraceFolder)) {
  66                             return false;
  67                         }
  68                     } else {
  69                         return false;
  70                     }
  71                 }
  72                 return true;
  73             }
  74         }
  75
  76         // Check if the parent of a trace element is an experiment
  77         if (isExperimentTrace.equals(property)) {
  78             if (receiver != null && receiver instanceof TmfTraceElement) {
  79             TmfTraceElement trace = (TmfTraceElement) receiver;
  80                 return trace.getParent() instanceof TmfExperimentElement;
  81             }
  82             return false;
  83         }
  84
  85         // Check if traces has supplementary files
  86         if (hasSupplementaryFiles.equals(property)) {
  87             if (receiver == null) {
  88                 return false;
  89             }
  90
  91             if (receiver instanceof TmfTraceElement) {
  92                 TmfTraceElement trace = (TmfTraceElement) receiver;
  93                 return trace.hasSupplementaryResources();
  94             } else if (receiver instanceof TmfExperimentElement) {
  95                 TmfExperimentElement trace = (TmfExperimentElement) receiver;
  96                 boolean hasHistory = false;
  97                 for (TmfTraceElement aTrace : trace.getTraces()) {
  98                     hasHistory |= aTrace.hasSupplementaryResources();
  99                 }
 100                 return hasHistory;
 101             }
 102             return false;
 103         }
 104
 105         return false;
 106     }
 107
 108 }