org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/views/synchronization/TmfSynchronizationView.java

   1 /*******************************************************************************
   2  * Copyright (c) 2013 École Polytechnique de Montréal
   3  *
   4  * All rights reserved. This program and the accompanying materials are made
   5  * 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  *   Geneviève Bastien - Initial implementation and API
  11  *******************************************************************************/
  12
  13 package org.eclipse.linuxtools.tmf.ui.views.synchronization;
  14
  15 import java.util.Map;
  16
  17 import org.eclipse.linuxtools.internal.tmf.ui.Activator;
  18 import org.eclipse.linuxtools.tmf.core.exceptions.TmfTraceException;
  19 import org.eclipse.linuxtools.tmf.core.signal.TmfSignalHandler;
  20 import org.eclipse.linuxtools.tmf.core.signal.TmfTraceSelectedSignal;
  21 import org.eclipse.linuxtools.tmf.core.signal.TmfTraceSynchronizedSignal;
  22 import org.eclipse.linuxtools.tmf.core.synchronization.SynchronizationAlgorithm;
  23 import org.eclipse.linuxtools.tmf.core.trace.ITmfTrace;
  24 import org.eclipse.linuxtools.tmf.core.trace.TmfExperiment;
  25 import org.eclipse.linuxtools.tmf.core.trace.TmfTraceManager;
  26 import org.eclipse.linuxtools.tmf.ui.views.TmfView;
  27 import org.eclipse.swt.SWT;
  28 import org.eclipse.swt.widgets.Composite;
  29 import org.eclipse.swt.widgets.Display;
  30 import org.eclipse.swt.widgets.Tree;
  31 import org.eclipse.swt.widgets.TreeColumn;
  32 import org.eclipse.swt.widgets.TreeItem;
  33
  34 /**
  35  * Small view to display statistics about a synchronization
  36  *
  37  * @author Geneviève Bastien
  38  * @since 3.0
  39  */
  40 public class TmfSynchronizationView extends TmfView {
  41
  42     /**
  43      * The ID corresponds to the package in which this class is embedded.
  44      */
  45     public static final String ID = "org.eclipse.linuxtools.tmf.ui.views.synchronization"; //$NON-NLS-1$
  46
  47     /**
  48      * The view name.
  49      */
  50     public static final String TMF_SYNCHRONIZATION_VIEW = "SynchronizationView"; //$NON-NLS-1$
  51
  52     /**
  53      * The synchronization algorithm to display stats for
  54      */
  55     private SynchronizationAlgorithm fAlgoSync;
  56
  57     private Tree fTree;
  58
  59     /**
  60      * Default constructor
  61      */
  62     public TmfSynchronizationView() {
  63         super(TMF_SYNCHRONIZATION_VIEW);
  64     }
  65
  66     @Override
  67     public void createPartControl(Composite parent) {
  68         fTree = new Tree(parent, SWT.NONE);
  69         TreeColumn nameCol = new TreeColumn(fTree, SWT.NONE, 0);
  70         TreeColumn valueCol = new TreeColumn(fTree, SWT.NONE, 1);
  71         nameCol.setText(Messages.TmfSynchronizationView_NameColumn);
  72         valueCol.setText(Messages.TmfSynchronizationView_ValueColumn);
  73
  74         fTree.setItemCount(0);
  75
  76         fTree.setHeaderVisible(true);
  77         nameCol.pack();
  78         valueCol.pack();
  79
  80         ITmfTrace trace = TmfTraceManager.getInstance().getActiveTrace();
  81         if (trace != null) {
  82             traceSelected(new TmfTraceSelectedSignal(this, trace));
  83         }
  84     }
  85
  86     private void updateTable() {
  87         fTree.setItemCount(0);
  88         if (fAlgoSync == null) {
  89             return;
  90         }
  91
  92         for (Map.Entry<String, Map<String, Object>> entry : fAlgoSync.getStats().entrySet()) {
  93             TreeItem item = new TreeItem(fTree, SWT.NONE);
  94             item.setText(0, entry.getKey().toString());
  95             item.setText(1, entry.getValue().toString());
  96
  97             for (Map.Entry<String, Object> subentry : entry.getValue().entrySet()) {
  98                 TreeItem subitem = new TreeItem(item, SWT.NONE);
  99                 subitem.setText(0, subentry.getKey().toString());
 100                 subitem.setText(1, subentry.getValue().toString());
 101             }
 102         }
 103
 104         /* Expand the tree items */
 105         for (int i = 0; i < fTree.getItemCount(); i++) {
 106             fTree.getItem(i).setExpanded(true);
 107         }
 108
 109         for (TreeColumn column : fTree.getColumns()) {
 110             column.pack();
 111         }
 112     }
 113
 114     @Override
 115     public void setFocus() {
 116         fTree.setFocus();
 117     }
 118
 119     /**
 120      * Handler called when a trace is selected
 121      *
 122      * @param signal
 123      *            Contains information about the selected trace
 124      * @since 3.1
 125      */
 126     @TmfSignalHandler
 127     public void traceSelected(TmfTraceSelectedSignal signal) {
 128         fAlgoSync = null;
 129         if (signal.getTrace() instanceof TmfExperiment) {
 130             try {
 131                 fAlgoSync = ((TmfExperiment) signal.getTrace()).synchronizeTraces();
 132             } catch (TmfTraceException e) {
 133                 Activator.getDefault().logError("Error while getting the synchronization data of experiment", e); //$NON-NLS-1$
 134             }
 135         }
 136         Display.getDefault().asyncExec(new Runnable() {
 137             @Override
 138             public void run() {
 139                 updateTable();
 140             }
 141         });
 142     }
 143
 144     /**
 145      * Handler called when traces are synchronized
 146      *
 147      * @param signal
 148      *            Contains the information about the selection.
 149      */
 150     @TmfSignalHandler
 151     public void traceSynchronized(TmfTraceSynchronizedSignal signal) {
 152         if (signal.getSyncAlgo() != fAlgoSync) {
 153             fAlgoSync = signal.getSyncAlgo();
 154             Display.getDefault().asyncExec(new Runnable() {
 155                 @Override
 156                 public void run() {
 157                     updateTable();
 158                 }
 159             });
 160         }
 161     }
 162 }