SBinetHttpCacheStream.hpp
上传用户:xqtpzdz
上传日期:2022-05-21
资源大小:1764k
文件大小:4k
源码类别:
xml/soap/webservice
开发平台:
Visual C++
- /****************License************************************************
- * Vocalocity OpenVXI
- * Copyright (C) 2004-2005 by Vocalocity, Inc. All Rights Reserved.
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- * Vocalocity, the Vocalocity logo, and VocalOS are trademarks or
- * registered trademarks of Vocalocity, Inc.
- * OpenVXI is a trademark of Scansoft, Inc. and used under license
- * by Vocalocity.
- ***********************************************************************/
- #ifndef SBINETHTTPCACHESTREAM_HPP
- #define SBINETHTTPCACHESTREAM_HPP
- /**
- * This class is responsible for reading information from a cache if
- * available and non-expired. Otherwise, it uses an SBinetHttpStream
- * to fetch information and then caches it.
- *
- * @doc <p>
- **/
- #include "SBinetStoppableStream.hpp"
- #include "SBinetHttpStream.hpp"
- #include "VXIcache.h"
- class SBinetChannel;
- class SBinetValidator;
- class SBinetHttpCacheStream: public SBinetStoppableStream
- {
- // ................. CONSTRUCTORS, DESTRUCTOR ............
- //
- // ------------------------------------------------------------
- /**
- * Default constructor.
- **/
- public:
- SBinetHttpCacheStream(SBinetURL* url,
- SBinetHttpStream::SubmitMethod method,
- SBinetChannel* ch,
- VXIcacheInterface *cache,
- VXIlogInterface *log, VXIunsigned diagLogBase);
- /**
- * Destructor.
- **/
- public:
- virtual ~SBinetHttpCacheStream();
- virtual VXIinetResult Open(VXIint flags,
- const VXIMap* properties,
- VXIMap* streamInfo);
- virtual VXIinetResult Read(/* [OUT] */ VXIbyte* pBuffer,
- /* [IN] */ VXIulong nBuflen,
- /* [OUT] */ VXIulong* pnRead );
- virtual VXIinetResult Write(/* [IN] */ const VXIbyte* pBuffer,
- /* [IN] */ VXIulong nBuflen,
- /* [OUT] */ VXIulong* pnWritten);
- virtual VXIinetResult Close();
- virtual void setTimeOut(const SWITimeStamp *timeout);
- /**
- * Disabled copy constructor.
- **/
- private:
- SBinetHttpCacheStream(const SBinetHttpCacheStream&);
- /**
- * Disabled assignment operator.
- **/
- private:
- SBinetHttpCacheStream& operator=(const SBinetHttpCacheStream&);
- private:
- void setProperties(const VXIMap* properties);
- VXIcacheResult openCacheRead(const VXIchar *absoluteURL, VXIMap *streamInfo);
- VXIinetResult openCacheWrite(const VXIchar *absoluteURL, const VXIMap *streamInfo);
- VXIcacheResult openCacheEntry(const VXIchar *absoluteURL, VXIcacheOpenMode mode, VXIMap *cacheStreamInfo);
- VXIcacheResult readValidatorFromCache(SBinetURL* &ultimateURL, SBinetValidator& validator, bool &expired);
- VXIcacheResult writeValidatorToCache(const SBinetURL *ultimateURL, const SBinetValidator& validator);
- VXIinetResult cache2inetRc(VXIcacheResult result);
- private:
- bool _httpReadCompleted;
- VXIint32 _maxAge;
- VXIint32 _maxStale;
- SBinetHttpStream *_httpStream;
- SBinetChannel *_channel;
- VXIcacheInterface *_cache;
- VXIcacheStream *_cacheStream;
- SBinetHttpStream::SubmitMethod _method;
- };
- #endif