001    /*
002     * Copyright (C) 2006-2007 the original author or authors.
003     *
004     * Licensed under the Apache License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at
007     *
008     *     http://www.apache.org/licenses/LICENSE-2.0
009     *
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     * See the License for the specific language governing permissions and
014     * limitations under the License.
015     */
016    
017    package org.codehaus.gmaven.runtime.support.stubgen.parser;
018    
019    /**
020     * Thrown to indicate a parsing failure.
021     *
022     * @version $Id: ParseException.java 18 2009-07-16 09:39:40Z user57 $
023     * @author <a href="mailto:jason@planet57.com">Jason Dillon</a>
024     */
025    public class ParseException
026        extends Exception
027    {
028        private Location location;
029    
030        public ParseException(final Throwable cause) {
031            super(cause);
032        }
033    
034        public ParseException(final Throwable cause, final Location location) {
035            super(cause);
036    
037            assert location != null;
038            
039            this.location = location;
040        }
041    
042        public ParseException(final String message, final Location location) {
043            super(message);
044    
045            assert location != null;
046    
047            this.location = location;
048        }
049    
050        public Location getLocation() {
051            return location;
052        }
053    
054        public String getMessage() {
055            if (location == null) {
056                return super.getMessage();
057            }
058    
059            return super.getMessage() + " - " + location;
060        }
061    
062        public static class Location
063        {
064            public final int line;
065    
066            public final int column;
067    
068            public final String fileName;
069    
070            public Location(final int line, final int column, final String fileName) {
071                assert line > 0;
072                assert column > 0;
073                assert fileName != null;
074    
075                this.line = line;
076                this.column = column;
077                this.fileName = fileName;
078            }
079    
080            public String toString() {
081                return fileName + "[" + line + ":" + column + "]";
082            }
083        }
084    }