analysis/org.eclipse.tracecompass.analysis.lami.core/src/org/eclipse/tracecompass/internal/provisional/analysis/lami/core/aspect/LamiGenericAspect.java

   1 /*******************************************************************************
   2  * Copyright (c) 2015, 2016 EfficiOS Inc., Alexandre Montplaisir
   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
  10 package org.eclipse.tracecompass.internal.provisional.analysis.lami.core.aspect;
  11
  12 import java.util.Comparator;
  13
  14 import org.eclipse.jdt.annotation.NonNull;
  15 import org.eclipse.jdt.annotation.Nullable;
  16 import org.eclipse.tracecompass.internal.provisional.analysis.lami.core.module.LamiTableEntry;
  17
  18 /**
  19  * Base class for LAMI table aspects.
  20  *
  21  * @author Alexandre Montplaisir
  22  */
  23 public class LamiGenericAspect extends LamiTableEntryAspect {
  24
  25     private final int fColIndex;
  26     private final boolean fIsContinuous;
  27     private final boolean fIsTimeStamp;
  28
  29     /**
  30      * Constructor
  31      *
  32      * @param aspectName
  33      *            Name of the aspect (name of the column in the UI)
  34      * @param units
  35      *            The units of this column
  36      * @param colIndex
  37      *            Index of this column
  38      * @param isContinuous
  39      *            If the contents of this column are numbers or not
  40      * @param isTimeStamp
  41      *            If the contents of this column are numerical timestamp or not
  42      */
  43     public LamiGenericAspect(String aspectName, @Nullable String units, int colIndex, boolean isContinuous, boolean isTimeStamp) {
  44         super(aspectName, units);
  45         fColIndex = colIndex;
  46         fIsContinuous = isContinuous;
  47         fIsTimeStamp = isTimeStamp;
  48     }
  49
  50     @Override
  51     public boolean isContinuous() {
  52         return fIsContinuous;
  53     }
  54
  55     @Override
  56     public boolean isTimeStamp() {
  57         return fIsTimeStamp;
  58     }
  59
  60     @Override
  61     public @Nullable String resolveString(@NonNull LamiTableEntry entry) {
  62         return entry.getValue(fColIndex).toString();
  63     }
  64
  65     @Override
  66     public @Nullable Double resolveDouble(@NonNull LamiTableEntry entry) {
  67         if (fIsContinuous) {
  68             try {
  69                 if (entry.getValue(fColIndex).toString() != null) {
  70                     return Double.parseDouble(entry.getValue(fColIndex).toString());
  71                 }
  72             } catch (NumberFormatException e) {
  73                 // Fallback to default value below
  74             }
  75         }
  76         return null;
  77     }
  78
  79     @Override
  80     public Comparator<LamiTableEntry> getComparator() {
  81         if (isContinuous()) {
  82             return (o1, o2) -> {
  83                 Double dO1 = resolveDouble(o1);
  84                 Double dO2 = resolveDouble(o2);
  85                 if (dO1 == null || dO2 == null) {
  86                     return 0;
  87                 }
  88
  89                 return dO1.compareTo(dO2);
  90             };
  91         }
  92
  93         /* Use regular string comparison */
  94         return (o1, o2) -> {
  95             String s1 = resolveString(o1);
  96             String s2 = resolveString(o2);
  97
  98             if (s1 == null || s2 == null) {
  99                 return 0;
 100             }
 101
 102             return s1.compareTo(s2);
 103         };
 104     }
 105
 106 }