001    /*
002     * Sonar, open source software quality management tool.
003     * Copyright (C) 2009 SonarSource SA
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    
029    public class BytecodeVisitorNotifier {
030    
031      private final AsmClass asmClass;
032      private final BytecodeVisitor[] bytecodeVisitors;
033    
034      public BytecodeVisitorNotifier(AsmClass asmClass, BytecodeVisitor[] bytecodeVisitors) {
035        this.asmClass = asmClass;
036        this.bytecodeVisitors = new BytecodeVisitor[bytecodeVisitors.length];
037        System.arraycopy(bytecodeVisitors, 0, this.bytecodeVisitors, 0, bytecodeVisitors.length);
038      }
039    
040      public void notifyVisitors() {
041        callVisitClass();
042        callVisitMethodAndFieldAndEdge();
043        callLeaveClass();
044      }
045    
046      private void callVisitMethodAndFieldAndEdge() {
047        callVisitEdgeForSpecificAsmResource(asmClass);
048        for (AsmMethod method : asmClass.getMethods()) {
049          callVisitMethod(method);
050          callVisitEdgeForSpecificAsmResource(method);
051        }
052        for (AsmField field : asmClass.getFields()) {
053          callVisitField(field);
054          callVisitEdgeForSpecificAsmResource(field);
055        }
056      }
057    
058      private void callVisitEdgeForSpecificAsmResource(AsmResource resource) {
059        for (AsmEdge edge : resource.getOutgoingEdges()) {
060          for (BytecodeVisitor visitor : bytecodeVisitors) {
061            visitor.visitEdge(edge);
062          }
063        }
064      }
065    
066      private void callVisitMethod(AsmMethod asmMethod) {
067        for (BytecodeVisitor visitor : bytecodeVisitors) {
068          visitor.visitMethod(asmMethod);
069        }
070      }
071    
072      private void callVisitField(AsmField asmField) {
073        for (BytecodeVisitor visitor : bytecodeVisitors) {
074          visitor.visitField(asmField);
075        }
076      }
077    
078      private void callVisitClass() {
079        for (BytecodeVisitor visitor : bytecodeVisitors) {
080          visitor.visitClass(asmClass);
081        }
082      }
083    
084      private void callLeaveClass() {
085        for (BytecodeVisitor visitor : bytecodeVisitors) {
086          visitor.leaveClass(asmClass);
087        }
088      }
089    }