/*
* ====================================================================
* Licensed to the Apache Software Foundation (ASF) under one
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* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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
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* Unless required by applicable law or agreed to in writing,
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* under the License.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
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*
* Please note methods of this class are not synchronized and therefore may * be threading unsafe. * * @since 4.0 */ public class BasicHttpContext implements HttpContext { private final HttpContext parentContext; private Map map = null; public BasicHttpContext() { this(null); } public BasicHttpContext(final HttpContext parentContext) { super(); this.parentContext = parentContext; } public Object getAttribute(final String id) { if (id == null) { throw new IllegalArgumentException("Id may not be null"); } Object obj = null; if (this.map != null) { obj = this.map.get(id); } if (obj == null && this.parentContext != null) { obj = this.parentContext.getAttribute(id); } return obj; } public void setAttribute(final String id, final Object obj) { if (id == null) { throw new IllegalArgumentException("Id may not be null"); } if (this.map == null) { this.map = new HashMap(); } this.map.put(id, obj); } public Object removeAttribute(final String id) { if (id == null) { throw new IllegalArgumentException("Id may not be null"); } if (this.map != null) { return this.map.remove(id); } else { return null; } } }