Package org.yamcs.tctm.ccsds.time

Class CucTimeDecoder

java.lang.Object

org.yamcs.tctm.ccsds.time.CucTimeDecoder

All Implemented Interfaces:

TimeDecoder

public class CucTimeDecoder
extends Object
implements TimeDecoder

Decoder for CCSDS Unsegmented time Code as specified in TIME CODE FORMATS, CCSDS 301.0-B-4, Nov 2010 The time code is composed by

• P-Field (preamble field) 8 bits optional
• T-Field - up to 7 bytes (although it could be longer for custom codes)

Constructor Summary

Constructors

Constructor	Description
CucTimeDecoder(int implicitPField)	Constructor for decoder.

Method Summary

Modifier and Type	Method	Description
long	decode(byte[] packet, int offset)	Decodes the time from the binary buffer and returns the time in milliseconds.
long	decode(ByteSupplier s)	Decodes the time from the packet and returns the time in milliseconds.
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

CucTimeDecoder

public CucTimeDecoder(int implicitPField)

Constructor for decoder.

Parameters:

implicitPField - -1 means is part of the packet, other values means it is pre-defined (implicit)

Method Detail

decode

public long decode(byte[] packet,
                   int offset)

Description copied from interface: TimeDecoder

Decodes the time from the binary buffer and returns the time in milliseconds. The value returned can be either absolute or relative (this has to be known by the caller) It is assumed that the buffer will contain enough data; if not, an ArrayIndexOutOfBoundsException will be thrown.

Specified by:

decode in interface TimeDecoder

Parameters:

packet - - where to read the data from

offset - - offset in the buffer where the decoding will begin

Returns:

decoded time in milliseconds

decode

public long decode(ByteSupplier s)

Description copied from interface: TimeDecoder

Decodes the time from the packet and returns the time in milliseconds. The value returned can be either absolute or relative (this has to be known by the caller)

Specified by:

decode in interface TimeDecoder

Parameters:

s - - the bytes will be read from here.

Returns:

time in milliseconds

toString

public String toString()

Overrides:

toString in class Object