Page Speed Optimization Libraries
1.7.30.2
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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_REWRITER_PUBLIC_FILE_INPUT_RESOURCE_H_ 00022 #define NET_INSTAWEB_REWRITER_PUBLIC_FILE_INPUT_RESOURCE_H_ 00023 00024 #include "net/instaweb/http/public/request_context.h" 00025 #include "net/instaweb/rewriter/public/resource.h" 00026 #include "net/instaweb/util/public/basictypes.h" 00027 #include "net/instaweb/util/public/string.h" 00028 #include "net/instaweb/util/public/string_util.h" 00029 00030 namespace net_instaweb { 00031 00032 struct ContentType; 00033 class InputInfo; 00034 class MessageHandler; 00035 class ResponseHeaders; 00036 class ServerContext; 00037 00038 class FileInputResource : public Resource { 00039 public: 00040 FileInputResource(ServerContext* server_context, 00041 const ContentType* type, 00042 const StringPiece& url, 00043 const StringPiece& filename); 00044 virtual ~FileInputResource(); 00045 00048 00049 virtual bool IsValidAndCacheable() const; 00050 00052 virtual void FillInPartitionInputInfo(HashHint include_content_hash, 00053 InputInfo* input); 00054 00055 virtual GoogleString url() const { return url_; } 00056 00057 virtual bool UseHttpCache() const { return false; } 00058 00059 protected: 00060 void SetDefaultHeaders(const ContentType* content_type, 00061 ResponseHeaders* header, MessageHandler* handler); 00062 00063 virtual void LoadAndCallback(NotCacheablePolicy not_cacheable_policy, 00064 const RequestContextPtr& request_context, 00065 AsyncCallback* callback); 00066 00067 private: 00068 GoogleString url_; 00069 GoogleString filename_; 00070 int64 last_modified_time_sec_; 00071 00072 DISALLOW_COPY_AND_ASSIGN(FileInputResource); 00073 }; 00074 00075 } 00076 00077 #endif ///< NET_INSTAWEB_REWRITER_PUBLIC_FILE_INPUT_RESOURCE_H_