uk.ac.ncl.cs.instantsoap.strategydp.impl
Class MultiplexingStrategyDispatcher

java.lang.Object
  uk.ac.ncl.cs.instantsoap.strategydp.impl.MultiplexingStrategyDispatcher

All Implemented Interfaces:

StrategyDispatcher

public class MultiplexingStrategyDispatcher
extends Object
implements StrategyDispatcher

Delegate handling jobs on to a range of handlers.

Author:

Cheng-Yang(Louis) Tang, Matthew Pocock

Nested Class Summary

Nested classes/interfaces inherited from interface uk.ac.ncl.cs.instantsoap.strategydp.StrategyDispatcher

StrategyDispatcher.ValidatedJob

Constructor Summary

MultiplexingStrategyDispatcher()

MultiplexingStrategyDispatcher(Set<StrategyDispatcher> dispatchers)

Method Summary

void	deRegisterHandler(StrategyDispatcher dispatcher)
MetaData	describeApplication(String application)
Set<MetaData>	getInputs(String application)
Set<MetaData>	getOutputs(String application)
boolean	handlesApplication(String application)
List<String>	listApplications()
void	registerHandler(StrategyDispatcher dispatcher)
StrategyDispatcher.ValidatedJob	validateJob(JobSpecification specification) Ensure that the jobManager specification can be dispatched.

Methods inherited from class java.lang.Object

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

Constructor Detail

MultiplexingStrategyDispatcher

public MultiplexingStrategyDispatcher()

MultiplexingStrategyDispatcher

public MultiplexingStrategyDispatcher(Set<StrategyDispatcher> dispatchers)

Method Detail

registerHandler

public void registerHandler(StrategyDispatcher dispatcher)

deRegisterHandler

public void deRegisterHandler(StrategyDispatcher dispatcher)

handlesApplication

public boolean handlesApplication(String application)

Specified by:

handlesApplication in interface StrategyDispatcher

listApplications

public List<String> listApplications()

Specified by:

listApplications in interface StrategyDispatcher

describeApplication

public MetaData describeApplication(String application)
                             throws UnknownApplicationException

Specified by:

describeApplication in interface StrategyDispatcher

Throws:

UnknownApplicationException

getInputs

public Set<MetaData> getInputs(String application)
                        throws UnknownApplicationException

Specified by:

getInputs in interface StrategyDispatcher

Throws:

UnknownApplicationException

getOutputs

public Set<MetaData> getOutputs(String application)
                         throws UnknownApplicationException

Specified by:

getOutputs in interface StrategyDispatcher

Throws:

UnknownApplicationException

validateJob

public StrategyDispatcher.ValidatedJob validateJob(JobSpecification specification)
                                            throws InvalidJobSpecificationException,
                                                   UnknownApplicationException

Description copied from interface: StrategyDispatcher

Ensure that the jobManager specification can be dispatched.

If there is no handler for this jobManager, or if it is malformed, then an InvalidJobSpecificationException should be raised. Otherwise, this should chain on to the right handler's validateJob() method. Once validated, this returns a ValidatedJob that can be used to run the jobManager specification any number of times.

Specified by:

validateJob in interface StrategyDispatcher

Parameters:

specification - the JobSpecification describing what to validate

Returns:

the validated job, ready to run

Throws:

InvalidJobSpecificationException - if the JobSpecification is not for something we can run, or if it is mal-formed in some way

UnknownApplicationException - if the application named by the specification is not known