Package org.yamcs.tctm

Interface Summary

Interface	Description
AggregatedDataLink	A data link that has multiple sub-links
ArchiveTmPacketProvider
CommandPostprocessor	The command post processor is responsible to provide the binary packet that will be send out for a PreparedCommand.
ErrorDetectionWordCalculator	Computes the checksum inside the CCSDS packet
Link	A source of data into yamcs; Currently TM, TC and Parameter
Packet
PacketInputStream	Interface implemented by the classes that read packets from an input stream.
PacketPreprocessor	The packet preprocessor is responsible for extracting basic information required for yamcs packet processing: packet generation time packet acquisition time sequence count It is assumed that the (generation time, sequence count) uniquely identify the packet.
ParameterDataLink	Interface for components providing parameters aquired from external systems.
ParameterSink	Used by the ParameterDataLink to propagate processed parameters inside Yamcs.
TcDataLink	Interface implemented by components that send commands to the outer universe
TimeDecoder	Interface for time decoders used in the PacketPreprocessor
TmPacketDataLink	Interface for components reading packets from external parties.
TmSink	Used by the TmPacketDataLink to propagate packets inside Yamcs.

Class Summary

Class	Description
AbstractLink	Abstract link implementation as a Service handling the basic enable/disable getConfig operations
AbstractPacketPreprocessor	This class provides some common facilities for the packet preprocessors.
AbstractTcDataLink	Base implementation for a TC data link that initialises a post processor and implements basic methods.
AbstractThreadedTcDataLink	Abstract link that starts a thread when it's enabled and stops it when it's disabled.
AbstractTmDataLink
CcsdsPacket	CCSDS Packet as per CCSDS 133.0-B-2 https://public.ccsds.org/Pubs/133x0b2e1.pdf
CcsdsPacketInputStream	Reads CCSDS packets from an input stream: first it reads 6 bytes primary header, it derives the length from the last two bytes and reads the remaining of the data.
CcsdsSeqCountFiller	Fills in the time, seq and checksum
CfdpPacketInputStream	CFDP packet reader that splits the stream into packets based on the length of the packet
FilePollingTmDataLink	TM packet data link which reads telemetry files from a specified directory.
FixedPacketInputStream	This input stream reads packets of a configurable fixed packet size.
GenericCommandPostprocessor
GenericPacketInputStream	Generic packet reader that splits the stream into packets based on the length of the packet
GenericPacketPreprocessor	Generic packet preprocessor.
Iso16CrcCalculator	ISO CRC calculator as described in ECSS-E-ST-70-41C 15 April 2016, appendix B.2
IssCommandPostprocessor
IssPacketPreprocessor	This implements CCSDS packets as used in ISS (International Space Station).
ReplayService	Provides telemetry packets and processed parameters from the yamcs archive.
Running16BitChecksumCalculator
StreamParameterProvider	Provides parameters from yarch streams (pp_realtime) to ParameterRequestManager.
StreamParameterSender	Sends collection of parameters to stream by
StreamPbParameterSender
TcpTcDataLink	Sends raw command packets on TCP socket.
TcpTcTmDataLink
TcpTmDataLink
UdpParameterDataLink	Receives PP data via UDP.
UdpTcDataLink	Sends raw packets on UDP socket.
UdpTmDataLink	Receives telemetry packets via UDP.
UsocPacketInputStream	Deprecated.

Enum Summary

Enum	Description
AbstractPacketPreprocessor.TimeEpochs
Link.Status

Exception Summary

Exception	Description
NoPacketSelectedException
PacketTooLongException	Exception thrown when a packet is longer than a defined limit
TcTmException	Generic exception to throw for problems encountered during TC or TM processing