Page Speed Optimization Libraries  1.3.25.1
net/instaweb/http/public/write_through_http_cache.h
Go to the documentation of this file.
00001 /*
00002  * Copyright 2011 Google Inc.
00003  *
00004  * Licensed under the Apache License, Version 2.0 (the "License");
00005  * you may not use this file except in compliance with the License.
00006  * You may obtain a copy of the License at
00007  *
00008  *      http:///www.apache.org/licenses/LICENSE-2.0
00009  *
00010  * Unless required by applicable law or agreed to in writing, software
00011  * distributed under the License is distributed on an "AS IS" BASIS,
00012  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  * See the License for the specific language governing permissions and
00014  * limitations under the License.
00015  */
00016 
00018 
00019 #ifndef NET_INSTAWEB_HTTP_PUBLIC_WRITE_THROUGH_HTTP_CACHE_H_
00020 #define NET_INSTAWEB_HTTP_PUBLIC_WRITE_THROUGH_HTTP_CACHE_H_
00021 
00022 #include <cstddef>
00023 
00024 #include "net/instaweb/http/public/http_cache.h"
00025 #include "net/instaweb/util/public/basictypes.h"
00026 #include "net/instaweb/util/public/scoped_ptr.h"
00027 #include "net/instaweb/util/public/string.h"
00028 
00029 namespace net_instaweb {
00030 
00031 class CacheInterface;
00032 class Hasher;
00033 class HTTPValue;
00034 class MessageHandler;
00035 class Statistics;
00036 class Timer;
00037 
00039 class WriteThroughHTTPCache : public HTTPCache {
00040  public:
00041   static const size_t kUnlimited;
00042 
00044   WriteThroughHTTPCache(CacheInterface* cache1, CacheInterface* cache2,
00045                         Timer* timer, Hasher* hasher, Statistics* statistics);
00046 
00047   virtual ~WriteThroughHTTPCache();
00048 
00050   virtual void SetIgnoreFailurePuts();
00051 
00053   virtual void Find(const GoogleString& key, MessageHandler* handler,
00054                     Callback* callback);
00055 
00057   virtual void Delete(const GoogleString& key);
00058 
00060   virtual void set_force_caching(bool force);
00061 
00063   virtual void set_hasher(Hasher* hasher) {
00064     cache1_->set_hasher(hasher);
00065     cache2_->set_hasher(hasher);
00066   }
00067 
00069   virtual void set_disable_html_caching_on_https(bool x);
00070 
00072   virtual void set_remember_not_cacheable_ttl_seconds(int64 value);
00073 
00075   virtual void set_remember_fetch_failed_ttl_seconds(int64 value);
00076 
00078   virtual void set_remember_fetch_dropped_ttl_seconds(int64 value);
00079 
00081   virtual void set_max_cacheable_response_content_length(int64 value);
00082 
00084   virtual void RememberNotCacheable(const GoogleString& key,
00085                                     bool is_200_status_code,
00086                                     MessageHandler * handler);
00087 
00089   virtual void RememberFetchFailed(const GoogleString& key,
00090                                    MessageHandler * handler);
00091 
00093   virtual void RememberFetchDropped(const GoogleString& key,
00094                                     MessageHandler * handler);
00095 
00100   void set_cache1_limit(size_t limit) { cache1_size_limit_ = limit; }
00101 
00102   virtual const char* Name() const { return name_.c_str(); }
00103 
00104  protected:
00106   virtual void PutInternal(const GoogleString& key, int64 start_us,
00107                            HTTPValue* value);
00108 
00109  private:
00110   void PutInCache1(const GoogleString& key, HTTPValue* value);
00111 
00112   scoped_ptr<HTTPCache> cache1_;
00113   scoped_ptr<HTTPCache> cache2_;
00114   size_t cache1_size_limit_;
00115   GoogleString name_;
00116 
00117   DISALLOW_COPY_AND_ASSIGN(WriteThroughHTTPCache);
00118 };
00119 
00120 }  
00121 
00122 #endif  ///< NET_INSTAWEB_HTTP_PUBLIC_WRITE_THROUGH_HTTP_CACHE_H_
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Defines