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.java.bytecode.asm;
021
022import org.sonar.squid.api.SourceCodeEdgeUsage;
023
024public class AsmEdge {
025
026  private final AsmResource from;
027  private final AsmResource to;
028  private final SourceCodeEdgeUsage usage;
029  private int sourceLineNumber = 0;
030
031  AsmEdge(AsmResource from, AsmResource to, SourceCodeEdgeUsage usage) {
032    this.from = from;
033    this.to = to;
034    this.usage = usage;
035    to.setUsed(true);
036  }
037
038  AsmEdge(AsmResource from, AsmResource to, SourceCodeEdgeUsage usage, int sourceLineNumber) {
039    this(from, to, usage);
040    this.sourceLineNumber = sourceLineNumber;
041  }
042
043  public int getSourceLineNumber() {
044    return sourceLineNumber;
045  }
046
047  public AsmClass getTargetAsmClass() {
048    if (getTo().getParent() != null) {
049      return getTo().getParent();
050    } else {
051      return (AsmClass) getTo();
052    }
053  }
054
055  public AsmResource getFrom() {
056    return from;
057  }
058
059  public AsmResource getTo() {
060    return to;
061  }
062
063  public SourceCodeEdgeUsage getUsage() {
064    return usage;
065  }
066
067  @Override
068  public boolean equals(Object obj) {
069    if ( !(obj instanceof AsmEdge)) {
070      return false;
071    }
072    AsmEdge edge = (AsmEdge) obj;
073    return from.equals(edge.from) && to.equals(edge.to);
074  }
075
076  @Override
077  public int hashCode() {
078    return from.hashCode() + to.hashCode() + usage.hashCode();
079  }
080}