org.caesarj.compiler.aspectj.CaesarPatternParser.java Source code

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Here is the source code for org.caesarj.compiler.aspectj.CaesarPatternParser.java

Source

/*
 * This source file is part of CaesarJ 
 * For the latest info, see http://caesarj.org/
 * 
 * Copyright  2003-2005 
 * Darmstadt University of Technology, Software Technology Group
 * Also see acknowledgements in readme.txt
 * 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 * 
 * $Id: CaesarPatternParser.java,v 1.7 2005-11-02 12:49:57 thiago Exp $
 */

package org.caesarj.compiler.aspectj;

import org.aspectj.weaver.patterns.IToken;
import org.aspectj.weaver.patterns.ITokenSource;
import org.aspectj.weaver.patterns.ParserException;
import org.aspectj.weaver.patterns.PatternParser;

/**
 * @author Karl Klose
 *
 *   This class encapsulates the AspectJ-Patternparser.
 */
public class CaesarPatternParser {
    public class CaesarParserException extends RuntimeException {
        private static final long serialVersionUID = 1L;

        private ParserException e;

        public CaesarParserException(ParserException e) {
            this.e = e;
        }

        public String getMessage() {
            return e.getMessage();
        }
    }

    //Attribute
    private PatternParser patternParser;
    private ITokenSource tokenSource;

    // Counstruction
    public CaesarPatternParser(String input, CaesarSourceContext context) {
        tokenSource = CaesarTokenSource.createTokenSource(input, context);
        patternParser = new CaesarWrapperPatternParser(tokenSource);
    }

    // Interface
    public CaesarDeclare parseDeclare() {
        CaesarDeclare ret;
        try {
            ret = new CaesarDeclare(patternParser.parseDeclare());
        } catch (ParserException ex) {
            throw new CaesarParserException(ex);
        }
        return ret;
    }

    public CaesarPointcut parsePointcut() {
        CaesarPointcut ret;
        try {
            ret = new CaesarPointcut(patternParser.parsePointcut());
        } catch (ParserException ex) {
            throw new CaesarParserException(ex);
        }
        if (tokenSource.peek() != IToken.EOF) {
            throw new CaesarParserException(
                    new ParserException("symbols found after pointcut", tokenSource.peek()));
        }
        return ret;
    }
}