org.eclipse.linuxtools.tmf/src/org/eclipse/linuxtools/tmf/trace/TmfLocation.java

   1 /*******************************************************************************
   2  * Copyright (c) 2009, 2010 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.trace;
  14
  15 import java.lang.reflect.Method;
  16
  17 /**
  18  * <b><u>TmfLocation</u></b>
  19  * <p>
  20  * A generic implementation of ITmfLocation
  21  */
  22 public class TmfLocation<L> implements ITmfLocation<L> {
  23
  24         private L fLocation;
  25
  26         @SuppressWarnings("unused")
  27         private TmfLocation() {
  28         }
  29
  30         public TmfLocation(L location) {
  31                 fLocation = location;
  32         }
  33
  34         public TmfLocation(TmfLocation<L> other) {
  35         if (other == null)
  36                 throw new IllegalArgumentException();
  37         fLocation = other.fLocation;
  38         }
  39
  40         public void setLocation(L location) {
  41                 fLocation = location;
  42         }
  43
  44         public L getLocation() {
  45                 return fLocation;
  46         }
  47
  48         // ------------------------------------------------------------------------
  49     // Object
  50     // ------------------------------------------------------------------------
  51
  52         @Override
  53     public int hashCode() {
  54             if (fLocation == null)
  55                 return -1;
  56                 return fLocation.hashCode();
  57     }
  58
  59     @Override
  60     public boolean equals(Object other) {
  61         if (!(other instanceof TmfLocation<?>))
  62                 return false;
  63         TmfLocation<?> o = (TmfLocation<?>) other;
  64         if (fLocation == null)
  65             return (o.fLocation == null);
  66         return fLocation.equals(o.fLocation);
  67     }
  68
  69         @Override
  70         public String toString() {
  71             if (fLocation == null)
  72                 return "null";
  73                 return fLocation.toString();
  74         }
  75
  76         @SuppressWarnings("unchecked")
  77         @Override
  78         public TmfLocation<L> clone() {
  79                 TmfLocation<L> clone = null;
  80                 try {
  81                         clone = (TmfLocation<L>) super.clone();
  82                         if (this.fLocation != null) {
  83                             Class<?> clazz  = this.fLocation.getClass();
  84                             Method   method = clazz.getMethod("clone", new Class[0]);
  85                             Object   duplic = method.invoke(this.fLocation, new Object[0]);
  86                             clone.fLocation = (L) duplic;
  87                         }
  88                 } catch (NoSuchMethodException e) {
  89                       // exception suppressed
  90                 } catch (Exception e) {
  91                         throw new InternalError(e.toString());
  92                 }
  93                 return clone;
  94         }
  95
  96 }