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

   1 /*******************************************************************************
   2  * Copyright (c) 2012, 2013 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 final static String IS_IN_TRACE_FOLDER = "isInTraceFolder"; //$NON-NLS-1$
  34     private final static String IS_EXPERIMENT_TRACE = "isExperimentTrace"; //$NON-NLS-1$
  35     private final static String HAS_SUPPLEMENTARY_FILES = "hasSupplementaryFiles"; //$NON-NLS-1$
  36     private final static String TRACE_TYPE = "traceType"; //$NON-NLS-1$
  37
  38     // ------------------------------------------------------------------------
  39     // Constructor
  40     // ------------------------------------------------------------------------
  41
  42     /**
  43      * Default constructor
  44      */
  45     public TracePropertyTester() {
  46     }
  47
  48     // ------------------------------------------------------------------------
  49     // IPropertyTester
  50     // ------------------------------------------------------------------------
  51
  52     /* (non-Javadoc)
  53      * @see org.eclipse.core.expressions.IPropertyTester#test(java.lang.Object, java.lang.String, java.lang.Object[], java.lang.Object)
  54      */
  55     @Override
  56     public boolean test(Object receiver, String property, Object[] args, Object expectedValue) {
  57
  58         // Check if the selected elements are in the trace folder
  59         if (IS_IN_TRACE_FOLDER.equals(property)) {
  60             if (receiver != null && receiver instanceof IStructuredSelection) {
  61                 Iterator<?> iter = ((IStructuredSelection) receiver).iterator();
  62                 while (iter.hasNext()) {
  63                     Object item = iter.next();
  64                     if (item instanceof TmfTraceElement) {
  65                         TmfTraceElement trace = (TmfTraceElement) item;
  66                         if (!(trace.getParent() instanceof TmfTraceFolder)) {
  67                             return false;
  68                         }
  69                     } else {
  70                         return false;
  71                     }
  72                 }
  73                 return true;
  74             }
  75         }
  76
  77         // Check if the parent of a trace element is an experiment
  78         if (IS_EXPERIMENT_TRACE.equals(property)) {
  79             if (receiver != null && receiver instanceof TmfTraceElement) {
  80                 TmfTraceElement trace = (TmfTraceElement) receiver;
  81                 return trace.getParent() instanceof TmfExperimentElement;
  82             }
  83             return false;
  84         }
  85
  86         // Check if traces has supplementary files
  87         if (HAS_SUPPLEMENTARY_FILES.equals(property)) {
  88             if (receiver == null) {
  89                 return false;
  90             }
  91
  92             if (receiver instanceof TmfTraceElement) {
  93                 TmfTraceElement trace = (TmfTraceElement) receiver;
  94                 return trace.hasSupplementaryResources();
  95             } else if (receiver instanceof TmfExperimentElement) {
  96                 TmfExperimentElement trace = (TmfExperimentElement) receiver;
  97                 boolean hasHistory = false;
  98                 for (TmfTraceElement aTrace : trace.getTraces()) {
  99                     hasHistory |= aTrace.hasSupplementaryResources();
 100                 }
 101                 return hasHistory;
 102             }
 103             return false;
 104         }
 105
 106         // Check if the trace element is of a specific trace type
 107         if (TRACE_TYPE.equals(property)) {
 108             if (receiver != null && receiver instanceof TmfTraceElement) {
 109                 TmfTraceElement trace = (TmfTraceElement) receiver;
 110                 if (expectedValue instanceof String && expectedValue.equals(trace.getTraceType())) {
 111                     return true;
 112                 }
 113             }
 114             return false;
 115         }
 116
 117         return false;
 118     }
 119
 120 }