nl.tudelft.repository.XAMCRA
Class XAMCRA

java.lang.Object
  nl.tudelft.repository.XAMCRA.XAMCRA

All Implemented Interfaces:

DomainSyncAlgorithm, LSPPrimaryRouting, TotemAlgorithm

public class XAMCRA
extends java.lang.Object
implements LSPPrimaryRouting, DomainSyncAlgorithm

This class implements the integration of XAMCRA (TUDelft). It is mandatory to specify the QoS constraints used when starting the algorithm. By default, only one constraint is used : the bandwidth. It is possible to use up to three additionnal constraints : the delai, metric and TE metric. The boolean parameters useMetric, useTEMetric, useDelay are used to specify which QoS constraints are in use. When routing an LSP, the delay constraint must be given in an additionnal parameter called "DelayConstraint", the metric constraint must be given in an additionnal parameter called "MetricConstraint" and the TE metric constraint must be given in an additionnal parameter called "TEMetricConstraint". If not specified, these values are set to Double.MAX_VALUE so that this means no constraint...

Creation date : 28 nov. 2005 13:47:24

Author:

Simon Balon (balon@run.montefiore.ulg.ac.be)

Field Summary

static int	SAMCRA
static int	TAMCRA

Constructor Summary

XAMCRA()

Method Summary

void	addLSP(Lsp lsp) Adds an LSP to XAMCRA database
java.util.List<ParameterDescriptor>	getPrimaryRoutingParameters()
java.util.HashMap	getRunningParameters() Returns the parameters given when the algorithm was started
java.util.List<ParameterDescriptor>	getStartAlgoParameters() Returns the optional parameters that can be given when starting the algorithm
void	invalidateDB() Tells the algo that the database is not up-to-date
boolean	isDBValid() return true if the local DB is up-to-date
void	printDB() print XAMCRA internal DB to the standard output
void	restart() restarts the algorithm with the same parameters
TotemActionList	routeLSP(Domain dom, LSPPrimaryRoutingParameter param) Computes a path with XAMCRA for one demand from a source node to a destination node with a bandwidth requirement
TotemActionList	routeNLSP(Domain dom, java.util.List<LSPPrimaryRoutingParameter> param) Computes paths with XAMCRA for a list of demands.
void	start(java.util.HashMap params) Used to start and initialize the algorithm
void	stop() Cleans all Xamcra data structures

Methods inherited from class java.lang.Object

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

Field Detail

SAMCRA

public static final int SAMCRA

See Also:

Constant Field Values

TAMCRA

public static final int TAMCRA

See Also:

Constant Field Values

Constructor Detail

XAMCRA

public XAMCRA()

Method Detail

start

public void start(java.util.HashMap params)
           throws AlgorithmInitialisationException

Description copied from interface: TotemAlgorithm

Used to start and initialize the algorithm

Specified by:

start in interface TotemAlgorithm

Throws:

AlgorithmInitialisationException

stop

public void stop()

Cleans all Xamcra data structures

Specified by:

stop in interface TotemAlgorithm

routeNLSP

public TotemActionList routeNLSP(Domain dom,
                                 java.util.List<LSPPrimaryRoutingParameter> param)
                          throws RoutingException,
                                 NoRouteToHostException,
                                 LocalDatabaseException

Computes paths with XAMCRA for a list of demands. This method just calls the routeLSP method for each demand.

Specified by:

routeNLSP in interface LSPPrimaryRouting

Parameters:

param - the list of the demand specified as a list of LSPPrimaryRoutingParameter

Returns:

a list of AddLspAction

Throws:

RoutingException

NoRouteToHostException

LocalDatabaseException

routeLSP

public TotemActionList routeLSP(Domain dom,
                                LSPPrimaryRoutingParameter param)
                         throws RoutingException,
                                NoRouteToHostException,
                                LocalDatabaseException

Computes a path with XAMCRA for one demand from a source node to a destination node with a bandwidth requirement

Specified by:

routeLSP in interface LSPPrimaryRouting

Parameters:

param - contains the source, destination, bandwidth, PL, OA, ...

Returns:

a list of actions

Throws:

RoutingException

NoRouteToHostException

LocalDatabaseException

addLSP

public void addLSP(Lsp lsp)
            throws RoutingException

Adds an LSP to XAMCRA database

Parameters:

lsp - the LSP to be added

Throws:

RoutingException

printDB

public void printDB()

print XAMCRA internal DB to the standard output

getStartAlgoParameters

public java.util.List<ParameterDescriptor> getStartAlgoParameters()

Description copied from interface: TotemAlgorithm

Returns the optional parameters that can be given when starting the algorithm

Specified by:

getStartAlgoParameters in interface TotemAlgorithm

Returns:

the list of algorithm parameters

getRunningParameters

public java.util.HashMap getRunningParameters()

Description copied from interface: TotemAlgorithm

Returns the parameters given when the algorithm was started

Specified by:

getRunningParameters in interface TotemAlgorithm

Returns:

getPrimaryRoutingParameters

public java.util.List<ParameterDescriptor> getPrimaryRoutingParameters()

Specified by:

getPrimaryRoutingParameters in interface LSPPrimaryRouting

isDBValid

public boolean isDBValid()

Description copied from interface: DomainSyncAlgorithm

return true if the local DB is up-to-date

Specified by:

isDBValid in interface DomainSyncAlgorithm

Returns:

invalidateDB

public void invalidateDB()

Description copied from interface: DomainSyncAlgorithm

Tells the algo that the database is not up-to-date

Specified by:

invalidateDB in interface DomainSyncAlgorithm

restart

public void restart()

Description copied from interface: DomainSyncAlgorithm

restarts the algorithm with the same parameters

Specified by:

restart in interface DomainSyncAlgorithm