Class FinSegmentBuffer

A binary byte buffer that holds the raw data of a single HBCI segment.

Inheritance
System.Object
FinByteBuffer
FinSegmentBuffer
Inherited Members
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
Namespace: Subsembly.FinTS
Assembly: Subsembly.FinTS.Core.dll
Syntax
public class FinSegmentBuffer : FinByteBuffer
Remarks

This is a very low level class that supports the implementation of the higher level FinSegment class. Applications usually only have to deal with the higher level class and never with instances of this class.

Properties

Header

Returns the parsed segment header or null, if there's no data.

Declaration
public FinSegmentHeader Header { get; }
Property Value
Type Description
FinSegmentHeader

SegmentType

The segment type of the segment contained in this segment buffer.

Declaration
public string SegmentType { get; }
Property Value
Type Description
System.String
Remarks

If this segment buffer is completely empty, then null will be returned. If the segment buffer starts with a special delimiter character, then an empty string is returned.

Exceptions
Type Condition
FinParseException

Is thrown if a segment type could not be extracted. This will be the case if no delimiter could be found.

SegNo

The segment number of the segment contained in this segment buffer.

Declaration
public int? SegNo { get; }
Property Value
Type Description
System.Nullable<System.Int32>
Remarks

If this segment buffer is completely empty, then null will be returned. There's no(!) value check for the SegNo - the returned SegNo might exceed 999.

Exceptions
Type Condition
FinParseException

Is thrown if a segment number could not be extracted. This will be the case if no delimiter could be found.

Version

The segment version of the segment contained in this segment buffer.

Declaration
public int? Version { get; }
Property Value
Type Description
System.Nullable<System.Int32>
Remarks

If this segment buffer is completely empty, then null will be returned. There's no(!) value check for the Version - the returned Version might exceed 999.

Exceptions
Type Condition
FinParseException

Is thrown if a segment version could not be extracted. This will be the case if no delimiter could be found.

Methods

Read(Stream, Int32, Boolean)

Reads a complete HBCI segment from the given stream into a FinSegmentBuffer and returns it.

Declaration
public static FinSegmentBuffer Read(Stream aStream, int nMaxSize, bool fSkipLeadingWhitespace)
Parameters
Type Name Description
System.IO.Stream aStream

Stream to read segment data from.
System.Int32 nMaxSize

The maximum size of the segment to be read. If the segment exceeds this limit, then a FinParseException will be thrown.
System.Boolean fSkipLeadingWhitespace
Returns
Type Description
FinSegmentBuffer

If a complete segment was successfully read from the stream, then a FinSegmentBuffer instance that contains the segment bytes is returned. If the stream is at its end before any segment byte was read, then null is returned.
Exceptions
Type Condition
FinParseException

If the input stream does not provide syntactically valid FinTS segment data, then a FinParseException is thrown. Syntactically valid means, that the input stream could be dissected into data elements and was properly terminated by a segment delimiter. The content of the data elements is completely irrelevant.

Scan(FinByteBuffer)

Declaration
public static FinSegmentBuffer Scan(FinByteBuffer aBuffer)
Parameters
Type Name Description
FinByteBuffer aBuffer
Returns
Type Description
FinSegmentBuffer

Scan(Byte[])

Declaration
public static FinSegmentBuffer Scan(byte[] vbBytes)
Parameters
Type Name Description
System.Byte[] vbBytes
Returns
Type Description
FinSegmentBuffer

Scan(Byte[], Int32, Int32)

Scans a segment from a byte array and wraps it with a FinSegmentBuffer without copying data.

Declaration
public static FinSegmentBuffer Scan(byte[] vbBytes, int nOffset, int nLength)
Parameters
Type Name Description
System.Byte[] vbBytes
System.Int32 nOffset
System.Int32 nLength
Returns
Type Description
FinSegmentBuffer
Exceptions
Type Condition
FinParseException

If the input stream does not provide syntactically valid FinTS segment data, then a FinParseException is thrown. Syntactically valid means, that the input stream could be dissected into data elements and was properly terminated by a segment delimiter. The content of the data elements is completely irrelevant.

ToString()

Converts the content of this segment buffer into a readable string for diagnostic purposes.

Declaration
public override string ToString()
Returns
Type Description
System.String
Overrides
Remarks

All data elements that are known to contain a secret PIN are masked out with bullet characters in the returned string. Also, the complete data contained in a HNVSD segment is masked out with bullets.