/// <summary>read block data</summary>
/// <exception cref="Com.Khubla.Pdxreader.Api.PDXReaderException"/>
private void ReadBlocks(BufferedInputStream bufferedInputStream, PDXReaderListener
pdxReaderListener)
{
try
{
/*
* init the array
*/
blocks = new Hashtable <int, DBTableBlock>();
/*
* skip to the first block
*/
int nSkip = dbTableHeader.GetBlockSize().GetValue() * 1024;
if (nSkip == bufferedInputStream.Skip(nSkip))
{
/*
* walk blocks
*/
int blocksInUse = dbTableHeader.GetBlocksInUse();
for (int i = 0; i < blocksInUse; i++)
{
/*
* block
*/
DBTableBlock pdxTableBlock = new DBTableBlock(i + 1, dbTableHeader.CalculateRecordsPerBlock
(), dbTableHeader.GetFields());
/*
* mark at the start of the block
*/
bufferedInputStream.Mark(MaxBlockSize);
/*
* read the block data
*/
pdxTableBlock.Read(pdxReaderListener, bufferedInputStream);
/*
* store it. blocks are numbered from 1, not from 0.
*/
blocks[pdxTableBlock.GetBlockNumber()] = pdxTableBlock;
/*
* reset to the start of the block
*/
bufferedInputStream.Reset();
/*
* skip ahead to next block
*/
bufferedInputStream.Skip(dbTableHeader.GetBlockSize().GetValue() * 1024);
}
}
else
{
throw new PDXReaderException("File format exception");
}
}
catch (Exception e)
{
throw new PDXReaderException("Exception in readBlocks", e);
}
}
/// <summary>read block data</summary>
/// <exception cref="Com.Khubla.Pdxreader.Api.PDXReaderException"/>
private void ReadBlocks(BufferedInputStream bufferedInputStream)
{
try
{
/*
* init the array
*/
blocks = new List <PXIndexBlock>();
/*
* skip to the first index block
*/
int nSkip = pxFileHeader.GetBlockSize().GetValue() * 1024;
if (nSkip == bufferedInputStream.Skip(nSkip))
{
/*
* walk index blocks
*/
int blocksInUse = pxFileHeader.GetBlocksInUse();
for (int i = 0; i < blocksInUse; i++)
{
/*
* block
*/
PXIndexBlock pxIndexBlock = new PXIndexBlock();
/*
* mark at the start of the block
*/
bufferedInputStream.Mark(MaxBlockSize);
/*
* read the block data
*/
pxIndexBlock.Read(bufferedInputStream);
/*
* store it. blocks are numbered from 1, not from 0.
*/
blocks.Add(pxIndexBlock);
/*
* reset to the start of the block
*/
bufferedInputStream.Reset();
/*
* skip ahead to next block
*/
bufferedInputStream.Skip(pxFileHeader.GetBlockSize().GetValue() * 1024);
}
}
else
{
throw new PDXReaderException("File format exception");
}
}
catch (Exception e)
{
throw new PDXReaderException("Exception in readBlocks", e);
}
}