RequestParameterValuesMap.java

/*
 * Copyright 2004 The Apache Software Foundation.
 * 
 * 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.apache.myfaces.context.servlet;

import java.util.Enumeration;

import javax.servlet.ServletRequest;

/**
 * ServletRequest multi-value parameters as Map.
 * 
 * @author Anton Koinov (latest modification by $Author$)
 * @version $Revision$ $Date$
 */
public class RequestParameterValuesMap extends AbstractAttributeMap
{
    private final ServletRequest _servletRequest;

    RequestParameterValuesMap(ServletRequest servletRequest)
    {
        _servletRequest = servletRequest;
    }

    protected Object getAttribute(String key)
    {
        return _servletRequest.getParameterValues(key);
    }

    protected void setAttribute(String key, Object value)
    {
        throw new UnsupportedOperationException(
            "Cannot set ServletRequest ParameterValues");
    }

    protected void removeAttribute(String key)
    {
        throw new UnsupportedOperationException(
            "Cannot remove ServletRequest ParameterValues");
    }

    protected Enumeration getAttributeNames()
    {
        return _servletRequest.getParameterNames();
    }
}