Java tutorial
/* * ==================================================================== * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * 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 * * 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. * ==================================================================== * * This software consists of voluntary contributions made by many * individuals on behalf of the Apache Software Foundation. For more * information on the Apache Software Foundation, please see * <http://www.apache.org/>. * */ package org.apache.http.client.cache; import org.apache.http.annotation.NotThreadSafe; import org.apache.http.client.protocol.HttpClientContext; import org.apache.http.protocol.BasicHttpContext; import org.apache.http.protocol.HttpContext; /** * @since 4.3 */ @NotThreadSafe public class HttpCacheContext extends HttpClientContext { /** * This is the name under which the {@link CacheResponseStatus} of a request * (for example, whether it resulted in a cache hit) will be recorded if an * {@link HttpContext} is provided during execution. */ public static final String CACHE_RESPONSE_STATUS = "http.cache.response.status"; public static HttpCacheContext adapt(final HttpContext context) { if (context instanceof HttpCacheContext) { return (HttpCacheContext) context; } else { return new HttpCacheContext(context); } } public static HttpCacheContext create() { return new HttpCacheContext(new BasicHttpContext()); } public HttpCacheContext(final HttpContext context) { super(context); } public HttpCacheContext() { super(); } public CacheResponseStatus getCacheResponseStatus() { return getAttribute(CACHE_RESPONSE_STATUS, CacheResponseStatus.class); } }