parseexception.java

来自「cqME :java framework for TCK test.」· Java 代码 · 共 68 行

/*
 * $Id$
 *
 * Copyright 1996-2007 Sun Microsystems, Inc. All Rights Reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License version
 * 2 only, as published by the Free Software Foundation.
 *
 * 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 version 2 for more details (a copy is
 * included at /legal/license.txt).
 *
 * You should have received a copy of the GNU General Public License
 * version 2 along with this work; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA
 *
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
 * Clara, CA 95054 or visit www.sun.com if you need additional
 * information or have any questions.
 *
 */

package com.sun.tck.j2me.utils.javasourcemodel;

/**
 * Exception thrown by a parser to indicate that the provided input is invalid.
 */
public class ParseException extends RuntimeException {
    
    /**
     * Constructs a ParseException with the specified detail message.
     */
    public ParseException(String message) {
        super(message);
        token = null;
    }
    
    /**
     * Constructs a ParseException with the specified detail message and
     * encountered token which caused error.
     */
    public ParseException(String message, String token) {
        super(message);
        this.token = token;
    }
    
    /**
     * Gets the error message. If this instance was constructed with
     * specifying erroneous token, information about token is added to
     * the message.
     */
    public String getMessage() {
        String msg = super.getMessage();
        
        if (token != null) {
            msg += " Unexpected token: \"" + token + "\"";
        }
        return msg;
    }

    private String token;
}