attributesmap.java

是离开的肌肤了卡机是离开的就富利卡及是了的开发及拉考试及的福利科技阿斯利康的肌肤莱卡及时的离开福建阿斯顿发

//========================================================================
//$Id: AttributesMap.java,v 1.3 2005/11/14 17:45:52 gregwilkins Exp $
//Copyright 2004-2005 Mort Bay Consulting Pty. Ltd.
//------------------------------------------------------------------------
//Licensed under the Apache License, Version 2.0 (the "License");
//you may not use this file except in compliance with the License.
//You may obtain a copy of the License at 
//http://www.apache.org/licenses/LICENSE-2.0
//Unless required by applicable law or agreed to in writing, software
//distributed under the License is distributed on an "AS IS" BASIS,
//WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//See the License for the specific language governing permissions and
//limitations under the License.
//========================================================================

package org.mortbay.util;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Map;

/* ------------------------------------------------------------ */
/** AttributesMap.
 * @author gregw
 *
 */
public class AttributesMap implements Attributes
{
    Map _map;

    /* ------------------------------------------------------------ */
    public AttributesMap()
    {
        _map=new HashMap();
    }
    
    /* ------------------------------------------------------------ */
    public AttributesMap(Map map)
    {
        _map=map;
    }
    
    /* ------------------------------------------------------------ */
    /* 
     * @see org.mortbay.util.Attributes#removeAttribute(java.lang.String)
     */
    public void removeAttribute(String name)
    {
        _map.remove(name);
    }

    /* ------------------------------------------------------------ */
    /* 
     * @see org.mortbay.util.Attributes#setAttribute(java.lang.String, java.lang.Object)
     */
    public void setAttribute(String name, Object attribute)
    {
        if (attribute==null)
            _map.remove(name);
        else
            _map.put(name, attribute);
    }

    /* ------------------------------------------------------------ */
    /* 
     * @see org.mortbay.util.Attributes#getAttribute(java.lang.String)
     */
    public Object getAttribute(String name)
    {
        return _map.get(name);
    }

    /* ------------------------------------------------------------ */
    /* 
     * @see org.mortbay.util.Attributes#getAttributeNames()
     */
    public Enumeration getAttributeNames()
    {
        return Collections.enumeration(_map.keySet());
    }

    /* ------------------------------------------------------------ */
    /* 
     * @see org.mortbay.util.Attributes#getAttributeNames()
     */
    public static Enumeration getAttributeNamesCopy(Attributes attrs)
    {
        if (attrs instanceof AttributesMap)
            return Collections.enumeration(((AttributesMap)attrs)._map.keySet());
        ArrayList names = new ArrayList();
        Enumeration e = attrs.getAttributeNames();
        while (e.hasMoreElements())
            names.add(e.nextElement());
        return Collections.enumeration(names);
    }

    /* ------------------------------------------------------------ */
    /* 
     * @see org.mortbay.util.Attributes#clear()
     */
    public void clearAttributes()
    {
        _map.clear();
    }

    /* ------------------------------------------------------------ */
    public String toString()
    {
        return _map.toString();
    }
    

}