| 1 | /******************************************************************************* |
| 2 | * Copyright (c) 2012 Ericsson |
| 3 | * |
| 4 | * All rights reserved. This program and the accompanying materials are made |
| 5 | * 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: Matthew Khouzam - Initial API and implementation |
| 10 | *******************************************************************************/ |
| 11 | package org.eclipse.linuxtools.tmf.core.ctfadaptor; |
| 12 | |
| 13 | import org.eclipse.linuxtools.tmf.core.event.ITmfTimestamp; |
| 14 | import org.eclipse.linuxtools.tmf.core.trace.ITmfLocation; |
| 15 | |
| 16 | /** |
| 17 | * The ctflocation is the nugget of information that is unique to a location in a trace. |
| 18 | * it can be copied and used to restore a position in a given trace. |
| 19 | */ |
| 20 | public class CtfLocation implements ITmfLocation<Long> { |
| 21 | |
| 22 | public static final Long INVALID_LOCATION = -1L; |
| 23 | |
| 24 | /** |
| 25 | * Constructor for CtfLocation. |
| 26 | * @param location Long |
| 27 | */ |
| 28 | public CtfLocation(Long location) { |
| 29 | setLocation(location); |
| 30 | } |
| 31 | |
| 32 | /** |
| 33 | * Constructor for CtfLocation. |
| 34 | * @param timestamp ITmfTimestamp |
| 35 | */ |
| 36 | public CtfLocation(ITmfTimestamp timestamp) { |
| 37 | setLocation(timestamp.getValue()); |
| 38 | } |
| 39 | |
| 40 | private Long fTimestamp; |
| 41 | |
| 42 | /** |
| 43 | * Method setLocation. |
| 44 | * @param location Long |
| 45 | */ |
| 46 | public void setLocation(Long location) { |
| 47 | this.fTimestamp = location; |
| 48 | } |
| 49 | |
| 50 | /** |
| 51 | * Method getLocation. |
| 52 | * @return Long |
| 53 | * @see org.eclipse.linuxtools.tmf.core.trace.ITmfLocation#getLocation() |
| 54 | */ |
| 55 | @Override |
| 56 | public Long getLocation() { |
| 57 | return this.fTimestamp; |
| 58 | } |
| 59 | |
| 60 | /** |
| 61 | * Method clone. |
| 62 | * @return CtfLocation |
| 63 | * @see org.eclipse.linuxtools.tmf.core.trace.ITmfLocation#clone() |
| 64 | */ |
| 65 | @Override |
| 66 | public CtfLocation clone() { |
| 67 | return new CtfLocation(getLocation()); |
| 68 | } |
| 69 | |
| 70 | /* (non-Javadoc) |
| 71 | * @see java.lang.Object#hashCode() |
| 72 | */ |
| 73 | @Override |
| 74 | public int hashCode() { |
| 75 | final int prime = 31; |
| 76 | int result = 1; |
| 77 | result = (prime * result) |
| 78 | + ((fTimestamp == null) ? 0 : fTimestamp.hashCode()); |
| 79 | return result; |
| 80 | } |
| 81 | |
| 82 | /* (non-Javadoc) |
| 83 | * @see java.lang.Object#equals(java.lang.Object) |
| 84 | */ |
| 85 | @Override |
| 86 | public boolean equals(Object obj) { |
| 87 | if (this == obj) { |
| 88 | return true; |
| 89 | } |
| 90 | if (obj == null) { |
| 91 | return false; |
| 92 | } |
| 93 | if (!(obj instanceof CtfLocation)) { |
| 94 | return false; |
| 95 | } |
| 96 | CtfLocation other = (CtfLocation) obj; |
| 97 | if (fTimestamp == null) { |
| 98 | if (other.fTimestamp != null) { |
| 99 | return false; |
| 100 | } |
| 101 | } else if (!fTimestamp.equals(other.fTimestamp)) { |
| 102 | return false; |
| 103 | } |
| 104 | return true; |
| 105 | } |
| 106 | |
| 107 | } |