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     */
020    package org.sonar.java.bytecode;
021    
022    import org.sonar.java.bytecode.asm.AsmClass;
023    import org.sonar.java.bytecode.asm.AsmEdge;
024    import org.sonar.java.bytecode.asm.AsmField;
025    import org.sonar.java.bytecode.asm.AsmMethod;
026    import org.sonar.java.bytecode.asm.AsmResource;
027    import org.sonar.java.bytecode.visitor.BytecodeVisitor;
028    import org.sonar.squid.indexer.SquidIndex;
029    
030    public class BytecodeVisitorNotifier {
031    
032      private final AsmClass asmClass;
033      private final BytecodeVisitor[] bytecodeVisitors;
034    
035      public BytecodeVisitorNotifier(AsmClass asmClass, BytecodeVisitor[] bytecodeVisitors) {
036        this.asmClass = asmClass;
037        this.bytecodeVisitors = new BytecodeVisitor[bytecodeVisitors.length];
038        System.arraycopy(bytecodeVisitors, 0, this.bytecodeVisitors, 0, bytecodeVisitors.length);
039      }
040    
041      public void notifyVisitors(SquidIndex indexer) {
042        for (BytecodeVisitor visitor : bytecodeVisitors) {
043          visitor.setSquidIndex(indexer);
044        }
045        callVisitClass();
046        callVisitMethodAndFieldAndEdge();
047        callLeaveClass();
048      }
049    
050      private void callVisitMethodAndFieldAndEdge() {
051        callVisitEdgeForSpecificAsmResource(asmClass);
052        for (AsmMethod method : asmClass.getMethods()) {
053          callVisitMethod(method);
054          callVisitEdgeForSpecificAsmResource(method);
055        }
056        for (AsmField field : asmClass.getFields()) {
057          callVisitField(field);
058          callVisitEdgeForSpecificAsmResource(field);
059        }
060      }
061    
062      private void callVisitEdgeForSpecificAsmResource(AsmResource resource) {
063        for (AsmEdge edge : resource.getOutgoingEdges()) {
064          for (BytecodeVisitor visitor : bytecodeVisitors) {
065            visitor.visitEdge(edge);
066          }
067        }
068      }
069    
070      private void callVisitMethod(AsmMethod asmMethod) {
071        for (BytecodeVisitor visitor : bytecodeVisitors) {
072          visitor.visitMethod(asmMethod);
073        }
074      }
075    
076      private void callVisitField(AsmField asmField) {
077        for (BytecodeVisitor visitor : bytecodeVisitors) {
078          visitor.visitField(asmField);
079        }
080      }
081    
082      private void callVisitClass() {
083        for (BytecodeVisitor visitor : bytecodeVisitors) {
084          visitor.visitClass(asmClass);
085        }
086      }
087    
088      private void callLeaveClass() {
089        for (BytecodeVisitor visitor : bytecodeVisitors) {
090          visitor.leaveClass(asmClass);
091        }
092      }
093    }