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

   1 /*******************************************************************************
   2  * Copyright (c) 2016 EfficiOS Inc., Philippe Proulx
   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.Nullable;
  15 import org.eclipse.tracecompass.internal.provisional.analysis.lami.core.module.LamiTableEntry;
  16 import org.eclipse.tracecompass.internal.provisional.analysis.lami.core.types.LamiData;
  17 import org.eclipse.tracecompass.internal.provisional.analysis.lami.core.types.LamiProcess;
  18
  19 /**
  20  * Aspect for process PID
  21  *
  22  * @author Philippe Proulx
  23  */
  24 public class LamiProcessPIDAspect extends LamiTableEntryAspect {
  25
  26     private final int fColIndex;
  27
  28     /**
  29      * Constructor
  30      *
  31      * @param colName
  32      *            Column name
  33      * @param colIndex
  34      *            Column index
  35      */
  36     public LamiProcessPIDAspect(String colName, int colIndex) {
  37         super(colName + " (PID)", null); //$NON-NLS-1$
  38         fColIndex = colIndex;
  39     }
  40
  41     @Override
  42     public boolean isContinuous() {
  43         return false;
  44     }
  45
  46     @Override
  47     public boolean isTimeStamp() {
  48         return false;
  49     }
  50
  51     @Override
  52     public @Nullable String resolveString(LamiTableEntry entry) {
  53         LamiData data = entry.getValue(fColIndex);
  54         if (data instanceof LamiProcess) {
  55             Long pid = ((LamiProcess) data).getPID();
  56
  57             if (pid == null) {
  58                 return null;
  59             }
  60
  61             return pid.toString();
  62         }
  63         /* Could be null, unknown, etc. */
  64         return data.toString();
  65     }
  66
  67     @Override
  68     public @Nullable Number resolveNumber(LamiTableEntry entry) {
  69         LamiData data = entry.getValue(fColIndex);
  70         if (data instanceof LamiProcess) {
  71             Long pid = ((LamiProcess) data).getPID();
  72             return pid;
  73         }
  74
  75         return null;
  76     }
  77
  78     @Override
  79     public Comparator<LamiTableEntry> getComparator() {
  80         return (o1, o2) -> {
  81             Number d1 = resolveNumber(o1);
  82             Number d2 = resolveNumber(o2);
  83
  84             if (d1 == null && d2 == null) {
  85                 return 0;
  86             }
  87             if (d1 == null) {
  88                 return 1;
  89             }
  90
  91             if (d2 == null) {
  92                 return -1;
  93             }
  94
  95             return Long.compare(d1.longValue(), d2.longValue());
  96         };
  97     }
  98 }