illegalpropertyaccessexception.java

大名鼎鼎的java动态脚本语言。已经通过了sun的认证

/*
$Id: IllegalPropertyAccessException.java,v 1.1 2005/02/24 13:10:12 blackdrag Exp $

Copyright 2003 (C) James Strachan and Bob Mcwhirter. All Rights Reserved.

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*/
package groovy.lang;

import java.lang.reflect.Field;
import java.lang.reflect.Modifier;

/**
 * An exception occurred if a dynamic property dispatch fails with a 
 * field not accessible.
 * 
 * @author <a href="mailto:[e-mail]">Jochen Theodorou</a>
 * @version $Revision: 1.1 $
 */
public class IllegalPropertyAccessException extends MissingPropertyException {
    
    private static String makeMessage(String propertyName, Class clazz, int modifiers, boolean isField) {
        String access = "private";
        if (Modifier.isProtected(modifiers)) access = "protected";
        if (Modifier.isPublic(modifiers)) access = "public";
        String propertyType = "property";
        if (isField) propertyType = "field";
        return  "Can not access the "+access+" "+propertyType+" "+propertyName+" in class "+clazz.getName();
    }
    
    public IllegalPropertyAccessException(String propertyName, Class clazz, int modifiers) {
        super(makeMessage(propertyName,clazz,modifiers,false),propertyName,clazz);
    }
    
    public IllegalPropertyAccessException(Field field, Class clazz) {
        super(makeMessage(field.getName(),clazz,field.getModifiers(),true),field.getName(),clazz);
    }
    
}