Page Speed Optimization Libraries  1.4.26.1
net/instaweb/http/public/counting_url_async_fetcher.h
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00001 /*
00002  * Copyright 2010 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 
00020 
00021 #ifndef NET_INSTAWEB_HTTP_PUBLIC_COUNTING_URL_ASYNC_FETCHER_H_
00022 #define NET_INSTAWEB_HTTP_PUBLIC_COUNTING_URL_ASYNC_FETCHER_H_
00023 
00024 #include "net/instaweb/util/public/basictypes.h"
00025 #include "net/instaweb/http/public/url_async_fetcher.h"
00026 #include "net/instaweb/util/public/string.h"
00027 
00028 namespace net_instaweb {
00029 
00030 class AsyncFetch;
00031 class MessageHandler;
00032 
00033 class CountingUrlAsyncFetcher : public UrlAsyncFetcher {
00034  public:
00035   explicit CountingUrlAsyncFetcher(UrlAsyncFetcher* fetcher)
00036       : fetcher_(fetcher) {
00037     Clear();
00038   }
00039   virtual ~CountingUrlAsyncFetcher();
00040 
00041   void set_fetcher(UrlAsyncFetcher* fetcher) { fetcher_ = fetcher; }
00042 
00043   virtual bool SupportsHttps() const { return fetcher_->SupportsHttps(); }
00044 
00045   virtual void Fetch(const GoogleString& url,
00046                      MessageHandler* message_handler,
00047                      AsyncFetch* fetch);
00048 
00049   int fetch_count() const { return fetch_count_; }
00050   int byte_count() const { return byte_count_; }
00051   int failure_count() const { return failure_count_; }
00052 
00053   void Clear();
00054 
00055   class CountingFetch;
00056   friend class CountingFetch;
00057 
00058  private:
00059   UrlAsyncFetcher* fetcher_;
00060   int fetch_count_;
00061   int byte_count_;
00062   int failure_count_;
00063 
00064   DISALLOW_COPY_AND_ASSIGN(CountingUrlAsyncFetcher);
00065 };
00066 
00067 }  
00068 
00069 #endif  ///< NET_INSTAWEB_HTTP_PUBLIC_COUNTING_URL_ASYNC_FETCHER_H_
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