org.eclipse.linuxtools.lttng.core/src/org/eclipse/linuxtools/lttng/event/LttngLocation.java

   1 package org.eclipse.linuxtools.lttng.event;
   2
   3 import org.eclipse.linuxtools.tmf.trace.ITmfLocation;
   4
   5
   6 public class LttngLocation implements ITmfLocation<LttngTimestamp>, Comparable<LttngLocation> {
   7
   8         private final static long DEFAULT_CURR_TIME =  0L;
   9
  10         private boolean isLastOperationParse = false ;
  11         private boolean isLastOperationReadNext = false;
  12         private boolean isLastOperationSeek = false;
  13
  14         private LttngTimestamp operationTime = null;
  15
  16         public LttngLocation() {
  17                 this( DEFAULT_CURR_TIME );
  18         }
  19
  20         public LttngLocation(long newCurrentTimestampValue) {
  21                 isLastOperationParse = false;
  22                 isLastOperationReadNext = false;
  23                 isLastOperationSeek = false;
  24                 operationTime = new LttngTimestamp(newCurrentTimestampValue);
  25         }
  26
  27         public LttngLocation(LttngTimestamp newCurrentTimestamp) {
  28                 isLastOperationParse = false;
  29                 isLastOperationReadNext = false;
  30                 isLastOperationSeek = false;
  31                 operationTime = new LttngTimestamp(newCurrentTimestamp);
  32         }
  33
  34
  35         public LttngLocation(LttngLocation oldLocation) {
  36                 this.isLastOperationParse = oldLocation.isLastOperationParse;
  37                 this.isLastOperationReadNext = oldLocation.isLastOperationReadNext;
  38                 this.isLastOperationSeek = oldLocation.isLastOperationSeek;
  39                 this.operationTime = oldLocation.operationTime;
  40         }
  41
  42         @Override
  43         public LttngLocation clone() {
  44
  45                 LttngLocation newLocation = null;
  46
  47                 try {
  48                         newLocation = (LttngLocation)super.clone();
  49
  50                         // *** IMPORTANT ***
  51                         // Basic type in java are immutable!
  52                         // Thus, using assignation ("=") on basic type is VALID.
  53                         newLocation.isLastOperationParse = this.isLastOperationParse;
  54                         newLocation.isLastOperationReadNext = this.isLastOperationReadNext;
  55                         newLocation.isLastOperationSeek = this.isLastOperationSeek;
  56
  57                         // For other type, we need to create a new timestamp
  58                         newLocation.operationTime  = new LttngTimestamp( this.operationTime );
  59                 }
  60                 catch (CloneNotSupportedException e) {
  61                         System.out.println("Cloning failed with : " + e.getMessage()); //$NON-NLS-1$
  62                 }
  63
  64                 return newLocation;
  65         }
  66
  67         public LttngTimestamp getOperationTime() {
  68                 return operationTime;
  69         }
  70
  71         public long getOperationTimeValue() {
  72                 return operationTime.getValue();
  73         }
  74
  75         public void setOperationTime(LttngTimestamp newOperationTime) {
  76                 this.operationTime.setValue(newOperationTime.getValue());
  77         }
  78
  79         public void setOperationTime(Long newOperationTimeValue) {
  80                 this.operationTime.setValue(newOperationTimeValue);
  81         }
  82
  83
  84         public void setLastOperationParse() {
  85                 isLastOperationParse = true;
  86                 isLastOperationReadNext  = false;
  87                 isLastOperationSeek  = false;
  88         }
  89
  90         public boolean isLastOperationParse() {
  91                 return isLastOperationParse;
  92         }
  93
  94
  95         public void setLastOperationReadNext() {
  96                 isLastOperationParse = false;
  97                 isLastOperationReadNext  = true;
  98                 isLastOperationSeek  = false;
  99         }
 100
 101         public boolean isLastOperationReadNext() {
 102                 return isLastOperationReadNext;
 103         }
 104
 105
 106         public void setLastOperationSeek() {
 107                 isLastOperationParse = false;
 108                 isLastOperationReadNext  = false;
 109                 isLastOperationSeek  = true;
 110         }
 111
 112         public boolean isLastOperationSeek() {
 113                 return isLastOperationSeek;
 114         }
 115
 116         public void resetLocationState() {
 117                 isLastOperationParse = false;
 118                 isLastOperationReadNext = false;
 119                 isLastOperationSeek = false;
 120         }
 121
 122         // ------------------------------------------------------------------------
 123         // Object
 124         // ------------------------------------------------------------------------
 125
 126         @Override
 127         public boolean equals(Object other) {
 128         if (!(other instanceof LttngLocation)) {
 129                 return false;
 130         }
 131         LttngLocation o = (LttngLocation) other;
 132         return (operationTime.equals(o.operationTime)) && (isLastOperationParse == o.isLastOperationParse) &&
 133                    (isLastOperationReadNext == o.isLastOperationReadNext) && (isLastOperationSeek == o.isLastOperationSeek);
 134         }
 135
 136         @Override
 137         public String toString() {
 138 //              return "\tLttngLocation[ P/R/S : "  + isLastOperationParse + "/" + isLastOperationReadNext + "/" + isLastOperationSeek + "  Current : " + operationTime + " ]";
 139                 return operationTime.toString();
 140         }
 141
 142         // ------------------------------------------------------------------------
 143         // ITmfLocation
 144         // ------------------------------------------------------------------------
 145
 146         @Override
 147         public void setLocation(LttngTimestamp location) {
 148                 operationTime  = (LttngTimestamp)location;
 149         }
 150
 151         @Override
 152         public LttngTimestamp getLocation() {
 153                 return new LttngTimestamp ( operationTime );
 154         }
 155
 156         @Override
 157         public int compareTo(LttngLocation o) {
 158                 return operationTime.compareTo(o.operationTime);
 159         }
 160
 161 }