org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/views/statistics/model/TmfStatisticsTreeRootFactory.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  *   Mathieu Denis      (mathieu.denis@polymtl.ca)  - Initial API
  11  *******************************************************************************/
  12
  13 package org.eclipse.linuxtools.tmf.ui.views.statistics.model;
  14
  15 import java.util.HashMap;
  16 import java.util.Map;
  17
  18 public class TmfStatisticsTreeRootFactory {
  19
  20     // -----------------------------------------------------------------------
  21     // Data
  22     // -----------------------------------------------------------------------
  23     /**
  24      * Contains the experiment name as the key and the traces data
  25      */
  26     private static final Map<String, AbsTmfStatisticsTree> fTreeInstances = new HashMap<String, AbsTmfStatisticsTree>();
  27
  28     // -----------------------------------------------------------------------
  29     // Methods
  30     // -----------------------------------------------------------------------
  31
  32     /**
  33      * Provide a statisticsTree instance per trace
  34      *
  35      * @return the corresponding trace statistics tree
  36      */
  37     public static TmfStatisticsTreeNode getStatTreeRoot(String traceUniqueId) {
  38
  39         AbsTmfStatisticsTree tree = getStatTree(traceUniqueId);
  40         if (tree == null) {
  41             return null;
  42         }
  43         return tree.getOrCreate(AbsTmfStatisticsTree.ROOT);
  44     }
  45
  46     /**
  47      *
  48      * @param traceUniqueId
  49      * @return the corresponding trace statistics tree
  50      */
  51     public static AbsTmfStatisticsTree getStatTree(String traceUniqueId) {
  52         if (traceUniqueId == null)
  53             return null;
  54
  55         AbsTmfStatisticsTree tree = fTreeInstances.get(traceUniqueId);
  56         return tree;
  57     }
  58
  59     /**
  60      * Add the new trace statistics data in the tree. Can be used later on if the same traces is selected back.
  61      *
  62      * @param traceUniqueId
  63      *            the name of the trace which will be used as a key to store the data. Must be different for each traces, otherwise the traces might
  64      *            be overwritten which would trigger a reload of the same trace.
  65      * @param statsData
  66      *            the information about the trace
  67      */
  68     public static void addStatsTreeRoot(String traceUniqueId, AbsTmfStatisticsTree statsData) {
  69         if (traceUniqueId == null || statsData == null)
  70             return;
  71
  72         fTreeInstances.put(traceUniqueId, statsData);
  73         // if called for the first time, create the root node
  74         statsData.getOrCreate(AbsTmfStatisticsTree.ROOT);
  75     }
  76
  77     /**
  78      *
  79      * @param traceUniqueId
  80      * @return true if the trace id is known
  81      */
  82     public static boolean containsTreeRoot(String traceUniqueId) {
  83         return fTreeInstances.containsKey(traceUniqueId);
  84     }
  85
  86     /**
  87      * Remove previously registered statistics tree.
  88      *
  89      * @param traceUniqueId
  90      */
  91     public static void removeStatTreeRoot(String traceUniqueId) {
  92         if (traceUniqueId != null && fTreeInstances.containsKey(traceUniqueId)) {
  93             fTreeInstances.remove(traceUniqueId);
  94         }
  95     }
  96
  97     /**
  98      * Remove all tree and root instances
  99      */
 100     public static void removeAll() {
 101         fTreeInstances.clear();
 102     }
 103 }