Package org.onosproject.net.optical.util

Class OpticalChannelUtility

java.lang.Object

org.onosproject.net.optical.util.OpticalChannelUtility

public final class OpticalChannelUtility
extends Object

Optical Channel Utility is a set of methods to convert different set of parameters to the OchSignal instance and backwards.

Method Summary

Modifier and Type	Method	Description
static org.onlab.util.Frequency	computeCentralFrequency(int spacingMultiplier, org.onosproject.net.ChannelSpacing channelSpacing)	This method computes the Central Frequency value from Spacing Multiplier and Channel Spacing values.
static int	computeSlotGranularity(org.onlab.util.Frequency slotWidth)	This method computes Slot Granularity from Slot Width value.
static org.onlab.util.Frequency	computeSlotWidth(int slotGranularity)	This method computes Slot Width value from Slot Granularity value.
static int	computeSpacingMultiplier(org.onlab.util.Frequency centralFrequency, org.onosproject.net.ChannelSpacing channelSpacing)	This method computes the Spacing Multiplier value from Central Frequency and Channel Spacing values.
static org.onosproject.net.OchSignal	createOchSignal(org.onlab.util.Frequency centralFrequency, org.onlab.util.Frequency slotWidth, org.onosproject.net.GridType gridType, org.onosproject.net.ChannelSpacing channelSpacing)	This method creates OchSignal instance based on Central Frequency and the Slot Width of the channel.
static org.onosproject.net.OchSignal	createOchSignalFromBounds(org.onlab.util.Frequency lowerBound, org.onlab.util.Frequency upperBound, org.onosproject.net.GridType gridType, org.onosproject.net.ChannelSpacing channelSpacing)	This method creates OchSignal instance from frequency bounds.
static Map<String,org.onlab.util.Frequency>	extractOch(org.onosproject.net.OchSignal signal, org.onosproject.net.ChannelSpacing channelSpacing)	This method extracts Central Frequency and Slot Width from OchSignal instance.
static Map<String,org.onlab.util.Frequency>	extractOchFreqBounds(org.onosproject.net.OchSignal signal, org.onosproject.net.ChannelSpacing channelSpacing)	This method extracts frequency bounds from OchSignal instance.

Methods inherited from class java.lang.Object

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

Method Detail

createOchSignal

public static final org.onosproject.net.OchSignal createOchSignal(org.onlab.util.Frequency centralFrequency,
                                                                  org.onlab.util.Frequency slotWidth,
                                                                  org.onosproject.net.GridType gridType,
                                                                  org.onosproject.net.ChannelSpacing channelSpacing)

This method creates OchSignal instance based on Central Frequency and the Slot Width of the channel.

Parameters:

centralFrequency - - central frequency of the connection.

slotWidth - - bandwidth of the optical channel.

gridType - - type of the frequency grid.

channelSpacing - - channel spacing.

Returns:

- returns created instance of OchSignal.

createOchSignalFromBounds

public static final org.onosproject.net.OchSignal createOchSignalFromBounds(org.onlab.util.Frequency lowerBound,
                                                                            org.onlab.util.Frequency upperBound,
                                                                            org.onosproject.net.GridType gridType,
                                                                            org.onosproject.net.ChannelSpacing channelSpacing)

This method creates OchSignal instance from frequency bounds.

Parameters:

lowerBound - - lower bound of the frequency.

upperBound - - upper bound of the frequency.

gridType - - type of the frequency grid.

channelSpacing - - channel spacing.

Returns:

- returns created instance of OchSignal.

extractOchFreqBounds

public static final Map<String,org.onlab.util.Frequency> extractOchFreqBounds(org.onosproject.net.OchSignal signal,
                                                                                    org.onosproject.net.ChannelSpacing channelSpacing)

This method extracts frequency bounds from OchSignal instance.

Parameters:

signal - - OchSignal instance.

channelSpacing - - channel spacing.

Returns:

- HashMap with upper and lower bounds of frequency.

extractOch

public static final Map<String,org.onlab.util.Frequency> extractOch(org.onosproject.net.OchSignal signal,
                                                                          org.onosproject.net.ChannelSpacing channelSpacing)

This method extracts Central Frequency and Slot Width from OchSignal instance.

Parameters:

signal - - OchSignal instance.

channelSpacing - - channel spacing.

Returns:

- HashMap with upper and lower bounds of frequency.

computeSpacingMultiplier

public static final int computeSpacingMultiplier(org.onlab.util.Frequency centralFrequency,
                                                 org.onosproject.net.ChannelSpacing channelSpacing)

This method computes the Spacing Multiplier value from Central Frequency and Channel Spacing values.

Parameters:

centralFrequency - - central frequency.

channelSpacing - - channel spacing.

Returns:

- computed spacing multiplier.

computeSlotGranularity

public static final int computeSlotGranularity(org.onlab.util.Frequency slotWidth)

This method computes Slot Granularity from Slot Width value.

Parameters:

slotWidth - - slot width.

Returns:

- computed slot granularity.

computeCentralFrequency

public static final org.onlab.util.Frequency computeCentralFrequency(int spacingMultiplier,
                                                                     org.onosproject.net.ChannelSpacing channelSpacing)

This method computes the Central Frequency value from Spacing Multiplier and Channel Spacing values.

Parameters:

spacingMultiplier - - spacing multiplier.

channelSpacing - - channel spacing.

Returns:

- central frequency as an instance of Frequency.

computeSlotWidth

public static final org.onlab.util.Frequency computeSlotWidth(int slotGranularity)

This method computes Slot Width value from Slot Granularity value.

Parameters:

slotGranularity - - slot granularity.

Returns:

- slot width as an instance of Frequency.