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 */ 020 021 package org.sonar.duplications.statement; 022 023 import java.util.List; 024 025 import org.sonar.duplications.token.Token; 026 import org.sonar.duplications.token.TokenQueue; 027 028 public class StatementChannelDisptacher { 029 030 private final StatementChannel[] channels; 031 032 public StatementChannelDisptacher(List<StatementChannel> channels) { 033 this.channels = channels.toArray(new StatementChannel[channels.size()]); 034 } 035 036 public boolean consume(TokenQueue tokenQueue, List<Statement> statements) { 037 Token nextToken = tokenQueue.peek(); 038 while (nextToken != null) { 039 boolean channelConsumed = false; 040 for (StatementChannel channel : channels) { 041 if (channel.consume(tokenQueue, statements)) { 042 channelConsumed = true; 043 break; 044 } 045 } 046 if (!channelConsumed) { 047 throw new IllegalStateException("None of the statement channel has been able to consume token: " + nextToken); 048 } 049 nextToken = tokenQueue.peek(); 050 } 051 return true; 052 } 053 054 }