| 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 | |
| 16 | /** |
| 17 | * <b><u>TmfContext</u></b> |
| 18 | * <p> |
| 19 | * Trace context structure. It ties a trace location to an event rank. The |
| 20 | * context should be enough to restore the trace state so the corresponding |
| 21 | * event can be read. |
| 22 | */ |
| 23 | public class TmfContext implements ITmfContext, Cloneable { |
| 24 | |
| 25 | private ITmfLocation<?> fLocation; |
| 26 | private long fRank; |
| 27 | |
| 28 | // ------------------------------------------------------------------------ |
| 29 | // Constructors |
| 30 | // ------------------------------------------------------------------------ |
| 31 | |
| 32 | public TmfContext(ITmfLocation<?> loc, long rank) { |
| 33 | fLocation = loc; |
| 34 | fRank = rank; |
| 35 | } |
| 36 | |
| 37 | public TmfContext(ITmfLocation<?> location) { |
| 38 | this(location, 0); |
| 39 | } |
| 40 | |
| 41 | public TmfContext(TmfContext other) { |
| 42 | this(other.fLocation, other.fRank); |
| 43 | } |
| 44 | |
| 45 | public TmfContext() { |
| 46 | this(null, 0); |
| 47 | } |
| 48 | |
| 49 | // ------------------------------------------------------------------------ |
| 50 | // ITmfContext |
| 51 | // ------------------------------------------------------------------------ |
| 52 | |
| 53 | public void setLocation(ITmfLocation<?> location) { |
| 54 | fLocation = location; |
| 55 | } |
| 56 | |
| 57 | public ITmfLocation<?> getLocation() { |
| 58 | return fLocation; |
| 59 | } |
| 60 | |
| 61 | public void setRank(long rank) { |
| 62 | fRank = rank; |
| 63 | } |
| 64 | |
| 65 | public long getRank() { |
| 66 | return fRank; |
| 67 | } |
| 68 | |
| 69 | public void updateRank(int delta) { |
| 70 | if (fRank != UNKNOWN_RANK) |
| 71 | fRank += delta; |
| 72 | } |
| 73 | |
| 74 | // ------------------------------------------------------------------------ |
| 75 | // Object |
| 76 | // ------------------------------------------------------------------------ |
| 77 | |
| 78 | @Override |
| 79 | public int hashCode() { |
| 80 | int result = 17; |
| 81 | result = 37 * result + fLocation.hashCode(); |
| 82 | result = 37 * result + (int) (fRank ^ (fRank >>> 32)); |
| 83 | return result; |
| 84 | } |
| 85 | |
| 86 | @Override |
| 87 | public boolean equals(Object other) { |
| 88 | if (!(other instanceof TmfContext)) { |
| 89 | return false; |
| 90 | } |
| 91 | TmfContext o = (TmfContext) other; |
| 92 | return fLocation.equals(o.fLocation) && (fRank == o.fRank); |
| 93 | } |
| 94 | |
| 95 | @Override |
| 96 | public String toString() { |
| 97 | return "[TmfContext(" + fLocation.toString() + "," + fRank + ")]"; |
| 98 | } |
| 99 | |
| 100 | @Override |
| 101 | public TmfContext clone() { |
| 102 | TmfContext clone = null; |
| 103 | try { |
| 104 | clone = (TmfContext) super.clone(); |
| 105 | clone.fLocation = fLocation.clone(); |
| 106 | clone.fRank = fRank; |
| 107 | } catch (CloneNotSupportedException e) { |
| 108 | } |
| 109 | return clone; |
| 110 | } |
| 111 | |
| 112 | } |