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TextArrayDataReader.h
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106 lines (78 loc) · 3.62 KB
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/* \file
* $Id$
* \author Caton Little
* \brief
*
* \section LICENSE
*
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
* License for the specific language governing rights and limitations
* under the License.
*
* The Original Code is FieldML
*
* The Initial Developer of the Original Code is Auckland Uniservices Ltd,
* Auckland, New Zealand. Portions created by the Initial Developer are
* Copyright (C) 2010 the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
*/
#ifndef H_TEXT_ARRAY_DATA_READER
#define H_TEXT_ARRAY_DATA_READER
#include "FieldmlIoContext.h"
#include "ArrayDataReader.h"
#include "InputStream.h"
class BufferReader;
class TextArrayDataReader :
public ArrayDataReader
{
private:
bool closed;
FieldmlInputStream * const stream;
const FmlObjectHandle source;
int sourceRank;
int *sourceSizes;
int *sourceRawSizes;
int *sourceOffsets;
std::string sourceLocation;
int nextOutermostOffset;
//The seek position of the start of the array data. This is a minor optimization to save us from having to line-skip for each read.
long startPos;
TextArrayDataReader( FieldmlIoContext *_context, FieldmlInputStream *_stream, FmlObjectHandle source, int _sourceRank );
bool checkDimensions( const int *offsets, const int *sizes );
bool applyOffsets( const int *offsets, const int *sizes, int depth, bool isHead );
FmlIoErrorNumber readPreSlab( const int *offsets, const int *sizes );
FmlIoErrorNumber readSlice( const int *offsets, const int *sizes, int depth, BufferReader &reader );
FmlIoErrorNumber readSlab( const int *offsets, const int *sizes, BufferReader &reader );
FmlIoErrorNumber skipPreamble();
public:
virtual FmlIoErrorNumber readIntSlab( const int *offsets, const int *sizes, int *valueBuffer );
virtual FmlIoErrorNumber readDoubleSlab( const int *offsets, const int *sizes, double *valueBuffer );
virtual FmlIoErrorNumber readBooleanSlab( const int *offsets, const int *sizes, FmlBoolean *valueBuffer );
virtual FmlIoErrorNumber close();
virtual ~TextArrayDataReader();
static TextArrayDataReader *create( FieldmlIoContext *_context, const std::string root, FmlObjectHandle source,
void *buffer);
};
#endif //H_TEXT_ARRAY_DATA_READER