001/* Copyright (C) 2013 TU Dortmund 002 * This file is part of AutomataLib, http://www.automatalib.net/. 003 * 004 * AutomataLib is free software; you can redistribute it and/or 005 * modify it under the terms of the GNU Lesser General Public 006 * License version 3.0 as published by the Free Software Foundation. 007 * 008 * AutomataLib is distributed in the hope that it will be useful, 009 * but WITHOUT ANY WARRANTY; without even the implied warranty of 010 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 011 * Lesser General Public License for more details. 012 * 013 * You should have received a copy of the GNU Lesser General Public 014 * License along with AutomataLib; if not, see 015 * http://www.gnu.de/documents/lgpl.en.html. 016 */ 017package net.automatalib.words.impl; 018 019import java.util.List; 020 021import net.automatalib.words.abstractimpl.AbstractAlphabet; 022 023public class ListAlphabet<I> extends AbstractAlphabet<I> { 024 025 private final List<? extends I> list; 026 027 public ListAlphabet(List<? extends I> list) { 028 this.list = list; 029 } 030 031 @Override 032 public I getSymbol(int index) throws IllegalArgumentException { 033 return list.get(index); 034 } 035 036 @Override 037 public int getSymbolIndex(I symbol) throws IllegalArgumentException { 038 int idx = list.indexOf(symbol); 039 if(idx == -1) 040 throw new IllegalArgumentException("Symbol " + symbol + " is not contained in the alphabet"); 041 return idx; 042 } 043 044 @Override 045 public I get(int index) { 046 return list.get(index); 047 } 048 049 @Override 050 public int size() { 051 return list.size(); 052 } 053 054}