Impala Documentation

void Impala::Core::Array::ImageArchiveFile::Init	(	CString	fileName,
		bool	useMemory,
		Util::Database *	db
	)			`[inline, private]`

Definition at line 121 of file ImageArchiveFile.h.

References Impala::Util::DatabaseReadNative(), Impala::Util::DatabaseWriteNative(), Impala::Util::IOBufferFile::FileExists(), Impala::CmdOptions::GetInstance(), Impala::Util::Database::GetIOBuffer(), ILOG_ERROR, ILOG_INFO, mFileOffset, and mIOBuffer.

Referenced by ImageArchiveFile().

00122     {
00123         mIOBuffer = 0;
00124 
00125         if (db == 0)
00126         {
00127             ILOG_ERROR("No database given");
00128             return;
00129         }
00130         if (fileName.empty())
00131         {
00132             ILOG_ERROR("Empty fileName");
00133             return;
00134         }
00135 
00136         // fileName must be a resolved (absolute) file path
00137         mIOBuffer = db->GetIOBuffer(fileName, true, useMemory, "", 0, true);
00138         //mIOBuffer = db->GetIOBuffer(fileName, true, useMemory, "");
00139         if (!mIOBuffer)
00140             return;
00141 
00142         const String idxPath = fileName + ".idx";
00143         if (CmdOptions::GetInstance().GetString("dataServer").empty())
00144         {
00145             // SK,Oct'08: This approach does currently not work with a dataserver 
00146             //            (the path would be re-resolved at the dataserver side);
00147             //            hence with dataservers we assume the presence of an index file.
00148             if (!Util::IOBufferFile::FileExists(idxPath))
00149             {
00150                 ReadRawListVarIndex<Array2dScalarUInt8>(mFileOffset, mIOBuffer);
00151                 ILOG_INFO("saving index [" + idxPath + "]");
00152                 Util::DatabaseWriteNative(idxPath, db, mFileOffset.begin(),
00153                                           mFileOffset.end());
00154                 return;
00155             }
00156         }
00157 
00158         Util::IOBuffer* indexBuffer = db->GetIOBuffer(idxPath, true, true, "");
00159         Util::DatabaseReadNative(std::back_inserter(mFileOffset), indexBuffer);
00160         delete indexBuffer;
00161         if (mFileOffset.size() == 0)
00162             ILOG_ERROR("Empty .idx file");
00163     }

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