org.openflow.protocol.factory

Interface OFStatisticsFactory

All Known Implementing Classes:

BasicFactory, OVXMessageFactory

public interface OFStatisticsFactory

The interface to factories used for retrieving OFStatistics instances. All methods are expected to be thread-safe.

Author:

David Erickson (daviderickson@cs.stanford.edu)

Method Summary

Methods

Modifier and Type	Method and Description
OFStatistics	getStatistics(OFType t, OFStatisticsType st) Retrieves an OFStatistics instance corresponding to the specified OFStatisticsType
List<OFStatistics>	parseStatistics(OFType t, OFStatisticsType st, org.jboss.netty.buffer.ChannelBuffer data, int length) Attempts to parse and return all OFStatistics contained in the given ByteBuffer, beginning at the ByteBuffer's position, and ending at position+length.
List<OFStatistics>	parseStatistics(OFType t, OFStatisticsType st, org.jboss.netty.buffer.ChannelBuffer data, int length, int limit) Attempts to parse and return all OFStatistics contained in the given ByteBuffer, beginning at the ByteBuffer's position, and ending at position+length.

Method Detail

getStatistics

OFStatistics getStatistics(OFType t,
                         OFStatisticsType st)

Retrieves an OFStatistics instance corresponding to the specified OFStatisticsType

Parameters:

t - the type of the containing OFMessage, only accepts statistics request or reply

st - the type of the OFStatistics to be retrieved

Returns:

an OFStatistics instance

parseStatistics

List<OFStatistics> parseStatistics(OFType t,
                                 OFStatisticsType st,
                                 org.jboss.netty.buffer.ChannelBuffer data,
                                 int length)

Attempts to parse and return all OFStatistics contained in the given ByteBuffer, beginning at the ByteBuffer's position, and ending at position+length.

Parameters:

t - the type of the containing OFMessage, only accepts statistics request or reply

st - the type of the OFStatistics to be retrieved

data - the ChannelBuffer to parse for OpenFlow Statistics

length - the number of Bytes to examine for OpenFlow Statistics

Returns:

a list of OFStatistics instances

parseStatistics

List<OFStatistics> parseStatistics(OFType t,
                                 OFStatisticsType st,
                                 org.jboss.netty.buffer.ChannelBuffer data,
                                 int length,
                                 int limit)

Attempts to parse and return all OFStatistics contained in the given ByteBuffer, beginning at the ByteBuffer's position, and ending at position+length.

Parameters:

t - the type of the containing OFMessage, only accepts statistics request or reply

st - the type of the OFStatistics to be retrieved

data - the ChannelBuffer to parse for OpenFlow Statistics

length - the number of Bytes to examine for OpenFlow Statistics

limit - the maximum number of messages to return, 0 means no limit

Returns:

a list of OFStatistics instances