/*
* 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 java.util.Map;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
/**
* HttpServletRequest Cookies as Map.
*
* @author Dimitry D'hondt
* @author Anton Koinov
* @version $Revision$ $Date$
*/
public class CookieMap extends AbstractAttributeMap
{
private static final Cookie[] EMPTY_ARRAY = new Cookie[0];
final HttpServletRequest _httpServletRequest;
CookieMap(HttpServletRequest httpServletRequest)
{
_httpServletRequest = httpServletRequest;
}
public void clear()
{
throw new UnsupportedOperationException(
"Cannot clear HttpRequest Cookies");
}
public boolean containsKey(Object key)
{
Cookie[] cookies = _httpServletRequest.getCookies();
if (cookies == null) return false;
for (int i = 0, len = cookies.length; i < len; i++)
{
if (cookies[i].getName().equals(key))
{
return true;
}
}
return false;
}
public boolean containsValue(Object findValue)
{
if (findValue == null)
{
return false;
}
Cookie[] cookies = _httpServletRequest.getCookies();
if (cookies == null) return false;
for (int i = 0, len = cookies.length; i < len; i++)
{
if (findValue.equals(cookies[i]))
{
return true;
}
}
return false;
}
public boolean isEmpty()
{
Cookie[] cookies = _httpServletRequest.getCookies();
return cookies == null || cookies.length == 0;
}
public int size()
{
Cookie[] cookies = _httpServletRequest.getCookies();
return cookies == null ? 0 : cookies.length;
}
public void putAll(Map t)
{
throw new UnsupportedOperationException();
}
protected Object getAttribute(String key)
{
Cookie[] cookies = _httpServletRequest.getCookies();
if (cookies == null) return null;
for (int i = 0, len = cookies.length; i < len; i++)
{
if (cookies[i].getName().equals(key))
{
return cookies[i];
}
}
return null;
}
protected void setAttribute(String key, Object value)
{
throw new UnsupportedOperationException(
"Cannot set HttpRequest Cookies");
}
protected void removeAttribute(String key)
{
throw new UnsupportedOperationException(
"Cannot remove HttpRequest Cookies");
}
protected Enumeration getAttributeNames()
{
Cookie[] cookies = _httpServletRequest.getCookies();
if (cookies == null)
{
return new CookieNameEnumeration(EMPTY_ARRAY);
}
else
{
return new CookieNameEnumeration(cookies);
}
}
private static class CookieNameEnumeration implements Enumeration
{
private final Cookie[] _cookies;
private final int _length;
private int _index;
public CookieNameEnumeration(Cookie[] cookies)
{
_cookies = cookies;
_length = cookies.length;
}
public boolean hasMoreElements()
{
return _index < _length;
}
public Object nextElement()
{
return _cookies[_index++].getName();
}
}
}