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     @Override
  53     public boolean test(Object receiver, String property, Object[] args, Object expectedValue) {
  54
  55         // Check if the selected elements are in the trace folder
  56         if (IS_IN_TRACE_FOLDER.equals(property)) {
  57             if (receiver != null && receiver instanceof IStructuredSelection) {
  58                 Iterator<?> iter = ((IStructuredSelection) receiver).iterator();
  59                 while (iter.hasNext()) {
  60                     Object item = iter.next();
  61                     if (item instanceof TmfTraceElement) {
  62                         TmfTraceElement trace = (TmfTraceElement) item;
  63                         if (!(trace.getParent() instanceof TmfTraceFolder)) {
  64                             return false;
  65                         }
  66                     } else {
  67                         return false;
  68                     }
  69                 }
  70                 return true;
  71             }
  72         }
  73
  74         // Check if the parent of a trace element is an experiment
  75         if (IS_EXPERIMENT_TRACE.equals(property)) {
  76             if (receiver != null && receiver instanceof TmfTraceElement) {
  77                 TmfTraceElement trace = (TmfTraceElement) receiver;
  78                 return trace.getParent() instanceof TmfExperimentElement;
  79             }
  80             return false;
  81         }
  82
  83         // Check if traces has supplementary files
  84         if (HAS_SUPPLEMENTARY_FILES.equals(property)) {
  85             if (receiver == null) {
  86                 return false;
  87             }
  88
  89             if (receiver instanceof TmfTraceElement) {
  90                 TmfTraceElement trace = (TmfTraceElement) receiver;
  91                 return trace.hasSupplementaryResources();
  92             } else if (receiver instanceof TmfExperimentElement) {
  93                 TmfExperimentElement trace = (TmfExperimentElement) receiver;
  94                 boolean hasHistory = false;
  95                 for (TmfTraceElement aTrace : trace.getTraces()) {
  96                     hasHistory |= aTrace.hasSupplementaryResources();
  97                 }
  98                 hasHistory |= trace.hasSupplementaryResources();
  99                 return hasHistory;
 100             }
 101             return false;
 102         }
 103
 104         // Check if the trace element is of a specific trace type
 105         if (TRACE_TYPE.equals(property)) {
 106             if (receiver != null && receiver instanceof TmfTraceElement) {
 107                 TmfTraceElement trace = (TmfTraceElement) receiver;
 108                 if (expectedValue instanceof String && expectedValue.equals(trace.getTraceType())) {
 109                     return true;
 110                 }
 111             }
 112             return false;
 113         }
 114
 115         return false;
 116     }
 117
 118 }