001 /* 002 * Sonar, open source software quality management tool. 003 * Copyright (C) 2008-2011 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.duplications.java; 021 022 import java.util.List; 023 024 import org.sonar.duplications.statement.matcher.TokenMatcher; 025 import org.sonar.duplications.token.Token; 026 import org.sonar.duplications.token.TokenQueue; 027 028 public class BridgeWithExceptionTokenMatcher extends TokenMatcher { 029 030 private final String lToken; 031 private final String rToken; 032 private final String except; 033 034 public BridgeWithExceptionTokenMatcher(String lToken, String rToken, String except) { 035 if (lToken == null || rToken == null || except == null) { 036 throw new IllegalArgumentException(); 037 } 038 this.lToken = lToken; 039 this.rToken = rToken; 040 this.except = except; 041 } 042 043 @Override 044 public boolean matchToken(TokenQueue tokenQueue, List<Token> matchedTokenList) { 045 if (!tokenQueue.isNextTokenValue(lToken)) { 046 return false; 047 } 048 int stack = 0; 049 while (tokenQueue.peek() != null) { 050 Token token = tokenQueue.poll(); 051 matchedTokenList.add(token); 052 if (lToken.equals(token.getValue())) { 053 stack++; 054 } else if (rToken.equals(token.getValue())) { 055 stack--; 056 } else if (except.equals(token.getValue())) { 057 return false; 058 } 059 if (stack == 0) { 060 return true; 061 } 062 } 063 return false; 064 } 065 066 }