Page Speed Optimization Libraries
1.3.25.1
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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/rewriter/public/resource.h" 00025 #include "net/instaweb/util/public/basictypes.h" 00026 #include "net/instaweb/util/public/string.h" 00027 #include "net/instaweb/util/public/string_util.h" 00028 00029 namespace net_instaweb { 00030 00031 struct ContentType; 00032 class InputInfo; 00033 class MessageHandler; 00034 class ResponseHeaders; 00035 class RewriteOptions; 00036 class ServerContext; 00037 00038 class FileInputResource : public Resource { 00039 public: 00040 FileInputResource(ServerContext* server_context, 00041 const RewriteOptions* options, 00042 const ContentType* type, 00043 const StringPiece& url, 00044 const StringPiece& filename); 00045 virtual ~FileInputResource(); 00046 00049 00050 virtual bool IsValidAndCacheable() const; 00051 00053 virtual void FillInPartitionInputInfo(HashHint include_content_hash, 00054 InputInfo* input); 00055 00056 virtual GoogleString url() const { return url_; } 00057 virtual const RewriteOptions* rewrite_options() const { 00058 return rewrite_options_; 00059 } 00060 00061 virtual bool UseHttpCache() const { return false; } 00062 00063 protected: 00064 void SetDefaultHeaders(const ContentType* content_type, 00065 ResponseHeaders* header, MessageHandler* handler); 00066 00067 virtual void LoadAndCallback(NotCacheablePolicy not_cacheable_policy, 00068 AsyncCallback* callback, 00069 MessageHandler* message_handler); 00070 00071 private: 00072 GoogleString url_; 00073 GoogleString filename_; 00074 int64 last_modified_time_sec_; 00075 00076 const RewriteOptions* rewrite_options_; 00077 00078 DISALLOW_COPY_AND_ASSIGN(FileInputResource); 00079 }; 00080 00081 } 00082 00083 #endif ///< NET_INSTAWEB_REWRITER_PUBLIC_FILE_INPUT_RESOURCE_H_