/// <summary>
/// Reads one entry of the indexTable and return it's values in a SFOIndexTableEntry-object
/// </summary>
public static SFOIndexTableEntry ReadEntry(Stream fIn)
{
SFOIndexTableEntry sfoIndexTableEntry = new SFOIndexTableEntry();
byte[] tempByteArray1 = new byte[1];
byte[] tempByteArray2 = new byte[2];
byte[] tempByteArray4 = new byte[4];
// read offsetKeyNameInKeyTable
fIn.Read(tempByteArray2, 0, 2);
sfoIndexTableEntry.OffsetKeyNameInKeyTable = tempByteArray2;
// read dataAlignmentRequirements
fIn.Read(tempByteArray1, 0, 1);
sfoIndexTableEntry.DataAlignmentRequirements = tempByteArray1[0];
// read dataTypeValue
fIn.Read(tempByteArray1, 0, 1);
sfoIndexTableEntry.DataTypeValue = tempByteArray1[0];
// read sizeValueData
fIn.Read(tempByteArray4, 0, 4);
sfoIndexTableEntry.SizeValueData = SFOReaderUtilities.ByteArrayReverseToInt(tempByteArray4);
// read sizeValueDataAndPadding
fIn.Read(tempByteArray4, 0, 4);
sfoIndexTableEntry.SizeValueDataAndPadding = SFOReaderUtilities.ByteArrayReverseToInt(tempByteArray4);
// read offsetDataValueInDataTable
fIn.Read(tempByteArray4, 0, 4);
sfoIndexTableEntry.OffsetDataValueInDataTable = SFOReaderUtilities.ByteArrayReverseToInt(tempByteArray4);
return(sfoIndexTableEntry);
}
/**
* Reads an entry of the dataValueTable an return it as String
*
* @param fIn
* @param sfoIndexTableEntry
* @return String
* @throws IOException
*/
public string ReadEntry(Stream sfoFile, SFOIndexTableEntry sfoIndexTableEntry)
{
byte[] entryByteArray = new byte[sfoIndexTableEntry.SizeValueData];
sfoFile.Read(entryByteArray, 0, sfoIndexTableEntry.SizeValueData);
this.valueBytesReaded += sfoIndexTableEntry.SizeValueData;
long offsetNextValue = sfoIndexTableEntry.OffsetDataValueInDataTable +
sfoIndexTableEntry.SizeValueDataAndPadding; // korrekt!
long skipBytes = offsetNextValue - this.valueBytesReaded;
sfoFile.Seek(skipBytes, SeekOrigin.Current);
this.valueBytesReaded += Convert.ToInt32(skipBytes);
return(SFOReaderUtilities.ByteArrayToString(entryByteArray, true));
}
private void Parse(Stream sfoFile)
{
// sfoHeader lesen
this.sfoHeader = SFOHeader.Read(sfoFile);
for (int i = 0; i < this.sfoHeader.NumberDataItems; i++)
{
this.IndexTableEntries.Add(SFOIndexTableEntry.ReadEntry(sfoFile));
}
// Zum KeyTable Anfang springen
// (offset der KeyTabelle - Header-Lהnge - Anzahl * IndexEntry Lהnge = restl. zu ignorierende Bytes)
int skipBytesToKeyTable = this.sfoHeader.OffsetKeyTable - SFOReader.headerSize -
(this.sfoHeader.NumberDataItems * SFOIndexTableEntry.IndexTableEntryLength);
sfoFile.Seek(skipBytesToKeyTable, SeekOrigin.Current);
// read KeyTable
var sfoKeyTableEntry = new SFOKeyTableEntry();
var keyTableEntries = new List <string>();
for (int i = 0; i < this.sfoHeader.NumberDataItems; i++)
{
keyTableEntries.Add(sfoKeyTableEntry.ReadEntry(sfoFile));
}
long skipBytesToValueTable = this.sfoHeader.OffsetValueTable - this.sfoHeader.OffsetKeyTable -
sfoKeyTableEntry.KeyTableLength;
sfoFile.Seek(skipBytesToValueTable, SeekOrigin.Current);
// read ValueTable
SFOValueTableEntry sfoValueTableEntry = new SFOValueTableEntry();
var valueTableEntries = new List <string>();
for (int i = 0; i < this.sfoHeader.NumberDataItems; i++)
{
valueTableEntries.Add(sfoValueTableEntry.ReadEntry(sfoFile, this.IndexTableEntries[i])
.Replace("\0", string.Empty));
}
for (int i = 0; i < keyTableEntries.Count; i++)
{
this.KeyValues.Add(keyTableEntries[i], valueTableEntries[i]);
}
}