001/* 002 * Sonar, open source software quality management tool. 003 * Copyright (C) 2008-2012 SonarSource 004 * mailto:contact AT sonarsource DOT com 005 * 006 * Sonar is free software; you can redistribute it and/or 007 * modify it under the terms of the GNU Lesser General Public 008 * License as published by the Free Software Foundation; either 009 * version 3 of the License, or (at your option) any later version. 010 * 011 * Sonar is distributed in the hope that it will be useful, 012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014 * Lesser General Public License for more details. 015 * 016 * You should have received a copy of the GNU Lesser General Public 017 * License along with Sonar; if not, write to the Free Software 018 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02 019 */ 020package org.sonar.duplications.index; 021 022import org.sonar.duplications.CodeFragment; 023 024public class ClonePart implements CodeFragment { 025 026 private final String resourceId; 027 private final int startUnit; 028 private final int startLine; 029 private final int endLine; 030 031 /** 032 * Cache for hash code. 033 */ 034 private int hash; 035 036 public ClonePart(String resourceId, int startUnit, int startLine, int endLine) { 037 this.resourceId = resourceId; 038 this.startUnit = startUnit; 039 this.startLine = startLine; 040 this.endLine = endLine; 041 } 042 043 public String getResourceId() { 044 return resourceId; 045 } 046 047 public int getUnitStart() { 048 return startUnit; 049 } 050 051 public int getStartLine() { 052 return startLine; 053 } 054 055 public int getEndLine() { 056 return endLine; 057 } 058 059 public int getLines() { 060 return endLine - startLine + 1; 061 } 062 063 @Override 064 public boolean equals(Object obj) { 065 if (obj instanceof ClonePart) { 066 ClonePart another = (ClonePart) obj; 067 return another.resourceId.equals(resourceId) 068 && another.startLine == startLine 069 && another.endLine == endLine 070 && another.startUnit == startUnit; 071 } 072 return false; 073 } 074 075 @Override 076 public int hashCode() { 077 int h = hash; 078 if (h == 0) { 079 h = resourceId.hashCode(); 080 h = 31 * h + startLine; 081 h = 31 * h + endLine; 082 h = 31 * h + startUnit; 083 hash = h; 084 } 085 return h; 086 } 087 088 @Override 089 public String toString() { 090 return "'" + resourceId + "':[" + startUnit + "|" + startLine + "-" + endLine + "]"; 091 } 092 093}