com.bigdata.ganglia

Class GangliaMessageEncoder25

java.lang.Object

com.bigdata.ganglia.GangliaMessageEncoder25

All Implemented Interfaces:

IGangliaMessageEncoder

public class GangliaMessageEncoder25
extends Object
implements IGangliaMessageEncoder

An earlier version of the Ganglia protocol. TODO Is 3.0 or 2.5 the previous format and which one is this?

Constructor Summary

Constructors

Constructor and Description
GangliaMessageEncoder25()

Method Summary

Methods

Modifier and Type	Method and Description
void	writeMetadata(XDROutputBuffer xdr, IGangliaMetadataMessage decl) NOP.
void	writeMetric(XDROutputBuffer xdr, IGangliaMetadataMessage decl, IGangliaMetricMessage msg) Generate a metric record.
void	writeRequest(XDROutputBuffer xdr, IGangliaRequestMessage msg) TODO I am not sure whether or not there was a request message in this protocol version.

Methods inherited from class java.lang.Object

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

Constructor Detail

GangliaMessageEncoder25

public GangliaMessageEncoder25()

Method Detail

writeRequest

public void writeRequest(XDROutputBuffer xdr,
                IGangliaRequestMessage msg)

TODO I am not sure whether or not there was a request message in this protocol version. While the metadata was sent with each metric record, the purpose of the request is not only to obtain the metadata but also to tell the ganglia services that a new service wants to get up to speed and would they please send it their current state.

Specified by:

writeRequest in interface IGangliaMessageEncoder

Parameters:

xdr -

msg -

writeMetadata

public void writeMetadata(XDROutputBuffer xdr,
                 IGangliaMetadataMessage decl)

NOP. The metadata was sent with each metric message in this version of the protocol.

Specified by:

writeMetadata in interface IGangliaMessageEncoder

Parameters:

xdr -

decl -

writeMetric

public void writeMetric(XDROutputBuffer xdr,
               IGangliaMetadataMessage decl,
               IGangliaMetricMessage msg)

Description copied from interface: IGangliaMessageEncoder

Generate a metric record.

Note: It is critical that the IGangliaMetricMessage is both internally consistent and consistent with the IGangliaMetadataMessage for that metric.

Specified by:

writeMetric in interface IGangliaMessageEncoder

Parameters:

xdr - Where to write the record.

decl - The metadata declaration.

msg - The metric value message.