| /* |
| * ==================================================================== |
| * 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.hc.client5.http.impl.cache; |
| |
| import java.util.Date; |
| import java.util.Map; |
| |
| import org.apache.hc.client5.http.cache.HttpCacheEntry; |
| import org.apache.hc.core5.http.HttpHost; |
| import org.apache.hc.core5.http.HttpRequest; |
| import org.apache.hc.core5.http.HttpResponse; |
| import org.apache.hc.core5.util.ByteArrayBuffer; |
| |
| interface HttpCache { |
| |
| String generateKey (HttpHost host, HttpRequest request, HttpCacheEntry cacheEntry); |
| |
| /** |
| * Clear all matching {@link HttpCacheEntry}s. |
| */ |
| void flushCacheEntriesFor(HttpHost host, HttpRequest request); |
| |
| /** |
| * Flush {@link HttpCacheEntry}s invalidated by the given request |
| */ |
| void flushCacheEntriesInvalidatedByRequest(HttpHost host, HttpRequest request); |
| |
| /** |
| * Flush {@link HttpCacheEntry}s invalidated by the given message exchange. |
| */ |
| void flushCacheEntriesInvalidatedByExchange(HttpHost host, HttpRequest request, HttpResponse response); |
| |
| /** |
| * Retrieve matching {@link HttpCacheEntry} from the cache if it exists. |
| */ |
| HttpCacheEntry getCacheEntry(HttpHost host, HttpRequest request); |
| |
| /** |
| * Retrieve all variants from the cache, if there are no variants then an empty |
| * {@link Map} is returned |
| */ |
| Map<String,Variant> getVariantCacheEntriesWithEtags(HttpHost host, HttpRequest request); |
| |
| /** |
| * Store a {@link HttpResponse} in the cache if possible, and return |
| */ |
| HttpCacheEntry createCacheEntry( |
| HttpHost host, |
| HttpRequest request, |
| HttpResponse originResponse, |
| ByteArrayBuffer content, |
| Date requestSent, |
| Date responseReceived); |
| |
| /** |
| * Update a {@link HttpCacheEntry} using a 304 {@link HttpResponse}. |
| */ |
| HttpCacheEntry updateCacheEntry( |
| HttpHost host, |
| HttpRequest request, |
| HttpCacheEntry stale, |
| HttpResponse originResponse, |
| Date requestSent, |
| Date responseReceived); |
| |
| /** |
| * Update a specific {@link HttpCacheEntry} representing a cached variant |
| * using a 304 {@link HttpResponse}. |
| */ |
| HttpCacheEntry updateVariantCacheEntry( |
| HttpHost host, |
| HttpRequest request, |
| HttpResponse originResponse, |
| Variant variant, |
| Date requestSent, |
| Date responseReceived); |
| |
| /** |
| * Specifies cache should reuse the given cached variant to satisfy |
| * requests whose varying headers match those of the given client request. |
| */ |
| void reuseVariantEntryFor( |
| HttpHost host, |
| HttpRequest request, |
| Variant variant); |
| } |