org.eclipse.linuxtools.lttng2.kernel.ui/src/org/eclipse/linuxtools/internal/lttng2/kernel/ui/views/resources/ResourcesEntry.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  *   Patrick Tasse - Initial API and implementation
  11  *******************************************************************************/
  12
  13 package org.eclipse.linuxtools.internal.lttng2.kernel.ui.views.resources;
  14
  15 import java.util.ArrayList;
  16 import java.util.Iterator;
  17 import java.util.List;
  18
  19 import org.eclipse.linuxtools.lttng2.kernel.core.trace.LttngKernelTrace;
  20 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.model.EventIterator;
  21 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.model.ITimeEvent;
  22 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.model.ITimeGraphEntry;
  23
  24 /**
  25  * An entry, or row, in the resource view
  26  *
  27  * @author Patrick Tasse
  28  */
  29 public class ResourcesEntry implements ITimeGraphEntry {
  30
  31     /** Type of resource */
  32     public static enum Type {
  33         /** Null resources (filler rows, etc.) */
  34         NULL,
  35         /** Entries for CPUs */
  36         CPU,
  37         /** Entries for IRQs */
  38         IRQ,
  39         /** Entries for Soft IRQ */
  40         SOFT_IRQ }
  41
  42     private final int fQuark;
  43     private final LttngKernelTrace fTrace;
  44     private ITimeGraphEntry fParent = null;
  45     private final List<ITimeGraphEntry> children = null;
  46     private final String fName;
  47     private final Type fType;
  48     private final int fId;
  49     private long fStartTime;
  50     private long fEndTime;
  51     private List<ITimeEvent> fEventList = new ArrayList<ITimeEvent>();
  52     private List<ITimeEvent> fZoomedEventList = null;
  53
  54     /**
  55      * Standard constructor
  56      *
  57      * @param quark
  58      *            The quark of the state system attribute whose state is shown
  59      *            on this row
  60      * @param trace
  61      *            The trace that this view is talking about
  62      * @param type
  63      *            Type of entry, see the Type enum
  64      * @param id
  65      *            The integer id associated with this entry or row
  66      */
  67     public ResourcesEntry(int quark, LttngKernelTrace trace, Type type, int id) {
  68         fQuark = quark;
  69         fTrace = trace;
  70         fType = type;
  71         fId = id;
  72         fName = type.toString() + ' ' + Integer.toString(id);
  73     }
  74
  75     @Override
  76     public ITimeGraphEntry getParent() {
  77         return fParent;
  78     }
  79
  80     @Override
  81     public boolean hasChildren() {
  82         return children != null && children.size() > 0;
  83     }
  84
  85     @Override
  86     public List<ITimeGraphEntry> getChildren() {
  87         return children;
  88     }
  89
  90     @Override
  91     public String getName() {
  92         return fName;
  93     }
  94
  95     @Override
  96     public long getStartTime() {
  97         return fStartTime;
  98     }
  99
 100     @Override
 101     public long getEndTime() {
 102         return fEndTime;
 103     }
 104
 105     @Override
 106     public boolean hasTimeEvents() {
 107         return true;
 108     }
 109
 110     @Override
 111     public Iterator<ITimeEvent> getTimeEventsIterator() {
 112         return new EventIterator(fEventList, fZoomedEventList);
 113     }
 114
 115     @Override
 116     public Iterator<ITimeEvent> getTimeEventsIterator(long startTime, long stopTime, long visibleDuration) {
 117         return new EventIterator(fEventList, fZoomedEventList, startTime, stopTime);
 118     }
 119
 120     /**
 121      * Assign a parent entry to this one, to organize them in a tree in the
 122      * view.
 123      *
 124      * @param parent
 125      *            The parent entry
 126      */
 127     public void setParent(ITimeGraphEntry parent) {
 128         fParent = parent;
 129     }
 130
 131     /**
 132      * Retrieve the attribute quark that's represented by this entry.
 133      *
 134      * @return The integer quark
 135      */
 136     public int getQuark() {
 137         return fQuark;
 138     }
 139
 140     /**
 141      * Retrieve the trace that is associated to this Resource view.
 142      *
 143      * @return The LTTng 2 kernel trace
 144      */
 145     public LttngKernelTrace getTrace() {
 146         return fTrace;
 147     }
 148
 149     /**
 150      * Get the entry Type of this entry. Uses the inner Type enum.
 151      *
 152      * @return The entry type
 153      */
 154     public Type getType() {
 155         return fType;
 156     }
 157
 158     /**
 159      * Get the integer ID associated with this entry.
 160      *
 161      * @return The ID
 162      */
 163     public int getId() {
 164         return fId;
 165     }
 166
 167     /**
 168      * Assign the target event list to this view.
 169      *
 170      * @param eventList
 171      *            The list of time events
 172      */
 173     public void setEventList(List<ITimeEvent> eventList) {
 174         fEventList = eventList;
 175         if (eventList != null && eventList.size() > 0) {
 176             fStartTime = eventList.get(0).getTime();
 177             ITimeEvent lastEvent = eventList.get(eventList.size() - 1);
 178             fEndTime = lastEvent.getTime() + lastEvent.getDuration();
 179         }
 180     }
 181
 182     /**
 183      * Assign the zoomed event list to this view.
 184      *
 185      * @param eventList
 186      *            The list of "zoomed" time events
 187      */
 188     public void setZoomedEventList(List<ITimeEvent> eventList) {
 189         fZoomedEventList = eventList;
 190     }
 191 }