enumconverter.java

来自「java css java css java css java css」· Java 代码 · 共 49 行

/*
 * Copyright 2008 Sun Microsystems, Inc.  All Rights Reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code 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 code 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 in the LICENSE file that
 * accompanied this code).
 *
 * 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 USA or visit www.sun.com if you need additional information or
 * have any questions.
 */

package com.sun.stylesheet.types;

import com.sun.stylesheet.*;

/**
 * Converts strings representing enum constants into the actual values.
 *
 *@author Ethan Nicholas
 */
public class EnumConverter implements TypeConverter {
    private Class enumClass;
    
    public EnumConverter(Class enumClass) {
        this.enumClass = enumClass;
    }

    public Object convertFromString(String string) {
        try {
            return Enum.valueOf(enumClass, string);
        }
        catch (IllegalArgumentException e) {
            throw new StylesheetException('"' + string + 
                    "\" is not a valid value for " + enumClass);
        }
    }
}