org.eclipse.linuxtools.tmf.core/src/org/eclipse/linuxtools/tmf/core/event/TmfSimpleTimestamp.java

   1 /*******************************************************************************
   2  * Copyright (c) 2012 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  *   Francois Chouinard - Initial API and implementation
  11  *******************************************************************************/
  12
  13 package org.eclipse.linuxtools.tmf.core.event;
  14
  15 /**
  16  * A simplified timestamp where scale and precision are set to 0.
  17  *
  18  * @version 1.0
  19  * @author Francois Chouinard
  20  */
  21 public class TmfSimpleTimestamp extends TmfTimestamp implements Cloneable {
  22
  23     // ------------------------------------------------------------------------
  24     // Constructors
  25     // ------------------------------------------------------------------------
  26
  27     /**
  28      * Default constructor (value = 0)
  29      */
  30     public TmfSimpleTimestamp() {
  31         this(0);
  32     }
  33
  34     /**
  35      * Full constructor
  36      *
  37      * @param value the timestamp value
  38      */
  39     public TmfSimpleTimestamp(final long value) {
  40         super(value, 0, 0);
  41     }
  42
  43     /**
  44      * Copy constructor
  45      *
  46      * @param timestamp the timestamp to copy
  47      */
  48     public TmfSimpleTimestamp(final ITmfTimestamp timestamp) {
  49         if (timestamp == null || timestamp.getScale() != 0 || timestamp.getPrecision() != 0) {
  50             throw new IllegalArgumentException();
  51         }
  52         setValue(timestamp.getValue(), 0, 0);
  53     }
  54
  55     // ------------------------------------------------------------------------
  56     // ITmfTimestamp
  57     // ------------------------------------------------------------------------
  58
  59     /* (non-Javadoc)
  60      * @see org.eclipse.linuxtools.tmf.core.event.TmfTimestamp#normalize(long, int)
  61      */
  62     @Override
  63     public ITmfTimestamp normalize(final long offset, final int scale) {
  64         if (scale == 0) {
  65             return new TmfSimpleTimestamp(getValue() + offset);
  66         }
  67         return super.normalize(offset, scale);
  68     }
  69
  70     /* (non-Javadoc)
  71      * @see org.eclipse.linuxtools.tmf.core.event.TmfTimestamp#compareTo(org.eclipse.linuxtools.tmf.core.event.ITmfTimestamp, boolean)
  72      */
  73     @Override
  74     public int compareTo(final ITmfTimestamp ts, final boolean withinPrecision) {
  75         if (ts instanceof TmfSimpleTimestamp) {
  76             final long delta = getValue() - ts.getValue();
  77             return (delta == 0) ? 0 : (delta > 0) ? 1 : -1;
  78         }
  79         return super.compareTo(ts, withinPrecision);
  80     }
  81
  82     /* (non-Javadoc)
  83      * @see org.eclipse.linuxtools.tmf.core.event.TmfTimestamp#getDelta(org.eclipse.linuxtools.tmf.core.event.ITmfTimestamp)
  84      */
  85     @Override
  86     public ITmfTimestamp getDelta(final ITmfTimestamp ts) {
  87         if (ts instanceof TmfSimpleTimestamp) {
  88             return new TmfSimpleTimestamp(getValue() - ts.getValue());
  89         }
  90         return super.getDelta(ts);
  91     }
  92
  93     // ------------------------------------------------------------------------
  94     // Cloneable
  95     // ------------------------------------------------------------------------
  96
  97     /* (non-Javadoc)
  98      * @see org.eclipse.linuxtools.tmf.core.event.TmfTimestamp#clone()
  99      */
 100     @Override
 101     public TmfSimpleTimestamp clone() {
 102         return (TmfSimpleTimestamp) super.clone();
 103     }
 104
 105     // ------------------------------------------------------------------------
 106     // Object
 107     // ------------------------------------------------------------------------
 108
 109     /* (non-Javadoc)
 110      * @see org.eclipse.linuxtools.tmf.core.event.TmfTimestamp#hashCode()
 111      */
 112     @Override
 113     public int hashCode() {
 114         return super.hashCode();
 115     }
 116
 117     /* (non-Javadoc)
 118      * @see org.eclipse.linuxtools.tmf.core.event.TmfTimestamp#equals(java.lang.Object)
 119      */
 120     @Override
 121     public boolean equals(final Object other) {
 122         if (this == other) {
 123             return true;
 124         }
 125         if (other == null) {
 126             return false;
 127         }
 128         if (!(other instanceof TmfSimpleTimestamp)) {
 129             return super.equals(other);
 130         }
 131         final TmfSimpleTimestamp ts = (TmfSimpleTimestamp) other;
 132
 133         return compareTo(ts, false) == 0;
 134     }
 135
 136     /* (non-Javadoc)
 137      * @see org.eclipse.linuxtools.tmf.core.event.TmfTimestamp#toString()
 138      */
 139     @Override
 140     @SuppressWarnings("nls")
 141     public String toString() {
 142         return "TmfSimpleTimestamp [fValue=" + getValue() + "]";
 143     }
 144
 145 }