gov.nist.antd.merlin.protocol.protectionlink
Class BackupManager

java.lang.Object
  |
  +--SSF.OS.ProtocolSession
        |
        +--gov.nist.antd.merlin.util.AbstractCallback
              |
              +--gov.nist.antd.merlin.protocol.protectionlink.BackupManager

All Implemented Interfaces:

Callback, com.renesys.raceway.DML.Configurable, DMLDump

public class BackupManager

extends AbstractCallback

implements DMLDump

This class represents an implementation of a restoration process. when a failure occured in a lamdba, it recomputes the algorithms to have a new path

 This class was developed at the National Institute of Standards and
 Technology by employees of the Federal Government in the course of
 their official duties. Pursuant to title 17 Section 105 of the United
 States Code this software is not subject to copyright protection and
 is in the public domain.
 NIST assumes no responsibility whatsoever for its use by other parties,
 and makes no guarantees, expressed or implied, about its quality,
 reliability, or any other characteristic.
 

 We would appreciate acknowledgement if the software is used.
 

 NIST ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION AND
 DISCLAIM ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING
 FROM THE USE OF THIS SOFTWARE.
 

Author:

borchert

, rouil

Field Summary

static java.lang.String	backupAlgorithm The static name of algorithm to use for backup
private LinkStateTable	linkStateTable Table of link state information.

Fields inherited from class SSF.OS.ProtocolSession

name, use

Constructor Summary

BackupManager()
Constructor

Method Summary

void	callback(EventMessage eventMsg) This method implements the handler for the los of light detection.
void	config(com.renesys.raceway.DML.Configuration cfg) Configuration
void	init() installs the link state table in the protocol.
boolean	isInputLambda(Lambda lambda, OpticalConnection route) Return true if the lambda is an in lambda
void	process(Lambda lambda) This method implements the handler for the los of light detection.
boolean	push(ProtocolMessage message, ProtocolSession fromSession) Print the message received.
java.lang.String	toDML() This method generates the DML representation of this class.

Methods inherited from class SSF.OS.ProtocolSession

close, closed, debugIdentifier, inGraph, open, opened, pushAfterDelay, pushAfterDelayFailed, setGraph, version

Methods inherited from class java.lang.Object

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

Field Detail

linkStateTable

private LinkStateTable linkStateTable

Table of link state information.

Since:

1.2

backupAlgorithm

public static java.lang.String backupAlgorithm

The static name of algorithm to use for backup

Constructor Detail

BackupManager

public BackupManager()

Constructor

Method Detail

config

public void config(com.renesys.raceway.DML.Configuration cfg)
            throws com.renesys.raceway.DML.configException

Configuration

Specified by:

config in interface com.renesys.raceway.DML.Configurable

Overrides:

config in class ProtocolSession

Parameters:

cfg - The DML configuration

Throws:

if - a configuration error occurs

com.renesys.raceway.DML.configException

callback

public void callback(EventMessage eventMsg)

This method implements the handler for the los of light detection. Recovery will only update the internal linkstate table.

Specified by:

callback in interface Callback

Specified by:

callback in class AbstractCallback

Parameters:

eventMsg - The event that occured.

process

public void process(Lambda lambda)

This method implements the handler for the los of light detection.

Parameters:

lambda - The failed lambda that is affected. The failure can be real or logical.

Since:

1.2

push

public boolean push(ProtocolMessage message,
                    ProtocolSession fromSession)
             throws ProtocolException

Print the message received.

Specified by:

push in class AbstractCallback

Parameters:

message - The message received.

fromSession - The protocol session which sent the message.

Returns:

True if the message is pushed. False if it is dropped.

Throws:

ProtocolException - If a protocol session exception occurs.

isInputLambda

public boolean isInputLambda(Lambda lambda,
                             OpticalConnection route)

Return true if the lambda is an in lambda

Parameters:

lambda - The Lambda to check

route - The OpticalConnection that contains the lambda

Returns:

true if the lambda is an input lambda

init

public void init()
          throws ProtocolException

installs the link state table in the protocol.

Overrides:

init in class AbstractCallback

Throws:

ProtocolException - If an exception occurs.

Since:

1.2

toDML

public java.lang.String toDML()

This method generates the DML representation of this class.

Specified by:

toDML in interface DMLDump

Returns:

The DML configuration as String