Package org.marketcetera.cluster

Class SimpleClusterService

java.lang.Object

org.marketcetera.cluster.service.AbstractClusterService

org.marketcetera.cluster.SimpleClusterService

All Implemented Interfaces:

ClusterListener, ClusterService, org.springframework.beans.factory.Aware, org.springframework.context.ApplicationContextAware

@Service
public class SimpleClusterService
extends AbstractClusterService
implements ClusterService

Provides a single node ClusterService implementation.

Since:

$Release$

Version:

$Id$

Author:

Colin DuPlantis

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	SimpleClusterService.SimpleClusterMember	Provides a basic ClusterMember implementation.

Nested classes/interfaces inherited from class org.marketcetera.cluster.service.AbstractClusterService

AbstractClusterService.WorkUnitEvaluationTask

Field Summary

Fields

Modifier and Type	Field	Description
private boolean	active	indicates if the cluster service is active or not
private org.springframework.context.ApplicationContext	applicationContext	provides access to the application context
private static String	attributeMapName	name assigned to the attribute map
private Set<ClusterMember>	clusterMembers	static cluster member collection
private com.google.common.cache.LoadingCache<String,ExecutorService>	executorServices	cluster executors
private int	hostNumber	static host number
private com.google.common.cache.LoadingCache<String,Lock>	locks	cluster locks
private com.google.common.cache.LoadingCache<String,Map<String,String>>	maps	cluster maps
private String	memberUUID	uniquely identifies this member
private com.google.common.cache.LoadingCache<String,BlockingDeque<?>>	queues	cluster queues
private ClusterMember	thisClusterMember	identifies the local cluster member

Constructor Summary

Constructors

Constructor	Description
SimpleClusterService()

Method Summary

Modifier and Type	Method	Description
String	addToMap(String inMapName, String inKey, String inValue)
<Clazz extends Serializable> void	addToQueue(QueueDescriptor<Clazz> inQueueDescriptor, Clazz inObject)
<Clazz extends Serializable> Map<Object,Future<Clazz>>	execute(CallableClusterTask<Clazz> inTask)
void	execute(RunnableClusterTask inTask)
String	getAttribute(String inKey)
Map<String,Map<String,String>>	getAttributes()
Map<String,String>	getAttributes(String inUuid)
Set<ClusterMember>	getClusterMembers()
private ExecutorService	getExecutorService(String inPoolName)	Get the executor service for the given pool name.
protected int	getHostNumber(String inHostId)
Lock	getLock(String inLockName)
Map<String,String>	getMap(String inMapName)
protected String	getMemberUuid()
private Lock	getPrivateLock(String inLockName)	Get the lock with the given name.
private Map<String,String>	getPrivateMap(String inMapName)	Get the map with the given name.
private <Clazz extends Serializable> BlockingDeque<Clazz>	getQueue(QueueDescriptor<Clazz> inQueueDescriptor)	Get the queue for the given descriptor.
protected boolean	isActive()
<Clazz extends Serializable> Clazz	peekFromQueue(QueueDescriptor<Clazz> inQueueDescriptor)
void	removeAttribute(String inKey)
void	removeAttribute(String inUuid, String inKey)
String	removeFromMap(String inMapName, String inKey)
void	setAttribute(String inKey, String inValue)
void	start()	Validate and start the object.
void	stop()	Stop the object.
<Clazz extends Serializable> Clazz	takeFromQueue(QueueDescriptor<Clazz> inQueueDescriptor)

Methods inherited from class org.marketcetera.cluster.service.AbstractClusterService

activateWorkUnit, addClusterListener, establishWorkUnitSpecs, evaluateWorkUnits, findAllBeansWith, findAllBeansWith, findAndActivateWorkUnit, findCandidateFor, generateClusterData, generateWorkUnitDescriptor, getAbandonedLockTimeout, getActiveWorkUnitSpecs, getAllClusterData, getInstanceData, getInstanceName, getLockTimeout, getMethod, getTypeAnnotation, getUuid, getWorkUnitEvaluationDelay, logClusterMetaData, marshall, memberAdded, memberChanged, memberRemoved, notifyMemberAdded, notifyMemberChanged, notifyMemberRemoved, register, removeClusterListener, setAbandonedLockTimeout, setApplicationContext, setInstanceName, setLockTimeout, setWorkUnitEvaluationDelay, toString, unmarshall, updateClusterMetaData

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.marketcetera.cluster.service.ClusterService

addClusterListener, getAllClusterData, getInstanceData, removeClusterListener

Field Detail

hostNumber

private final int hostNumber

static host number

See Also:

Constant Field Values

memberUUID

private final String memberUUID

uniquely identifies this member

active

private volatile boolean active

indicates if the cluster service is active or not

clusterMembers

private Set<ClusterMember> clusterMembers

static cluster member collection

thisClusterMember

private ClusterMember thisClusterMember

identifies the local cluster member

applicationContext

@Autowired
private org.springframework.context.ApplicationContext applicationContext

provides access to the application context

attributeMapName

private static final String attributeMapName

name assigned to the attribute map

executorServices

private final com.google.common.cache.LoadingCache<String,ExecutorService> executorServices

cluster executors

queues

private final com.google.common.cache.LoadingCache<String,BlockingDeque<?>> queues

cluster queues

maps

private final com.google.common.cache.LoadingCache<String,Map<String,String>> maps

cluster maps

locks

private final com.google.common.cache.LoadingCache<String,Lock> locks

cluster locks

Constructor Detail

SimpleClusterService

public SimpleClusterService()

Method Detail

start

@PostConstruct
public void start()

Validate and start the object.

Overrides:

start in class AbstractClusterService

stop

@PreDestroy
public void stop()

Stop the object.

Overrides:

stop in class AbstractClusterService

getMemberUuid

protected String getMemberUuid()

Specified by:

getMemberUuid in class AbstractClusterService

getHostNumber

protected int getHostNumber(String inHostId)

Specified by:

getHostNumber in class AbstractClusterService

isActive

protected boolean isActive()

Specified by:

isActive in class AbstractClusterService

addToQueue

public <Clazz extends Serializable> void addToQueue(QueueDescriptor<Clazz> inQueueDescriptor,
                                                    Clazz inObject)

Specified by:

addToQueue in interface ClusterService

peekFromQueue

public <Clazz extends Serializable> Clazz peekFromQueue(QueueDescriptor<Clazz> inQueueDescriptor)

Specified by:

peekFromQueue in interface ClusterService

takeFromQueue

public <Clazz extends Serializable> Clazz takeFromQueue(QueueDescriptor<Clazz> inQueueDescriptor)
                                                 throws InterruptedException

Specified by:

takeFromQueue in interface ClusterService

Throws:

InterruptedException

execute

public void execute(RunnableClusterTask inTask)

Specified by:

execute in interface ClusterService

execute

public <Clazz extends Serializable> Map<Object,Future<Clazz>> execute(CallableClusterTask<Clazz> inTask)
                                                                     throws Exception

Specified by:

execute in interface ClusterService

Throws:

Exception

getMap

public Map<String,String> getMap(String inMapName)

Specified by:

getMap in interface ClusterService

addToMap

public String addToMap(String inMapName,
                       String inKey,
                       String inValue)

Specified by:

addToMap in interface ClusterService

removeFromMap

public String removeFromMap(String inMapName,
                            String inKey)

Specified by:

removeFromMap in interface ClusterService

setAttribute

public void setAttribute(String inKey,
                         String inValue)

Specified by:

setAttribute in interface ClusterService

getAttribute

public String getAttribute(String inKey)

Specified by:

getAttribute in interface ClusterService

getAttributes

public Map<String,String> getAttributes(String inUuid)

Specified by:

getAttributes in interface ClusterService

getAttributes

public Map<String,Map<String,String>> getAttributes()

Specified by:

getAttributes in interface ClusterService

removeAttribute

public void removeAttribute(String inKey)

Specified by:

removeAttribute in interface ClusterService

removeAttribute

public void removeAttribute(String inUuid,
                            String inKey)

Specified by:

removeAttribute in interface ClusterService

getLock

public Lock getLock(String inLockName)

Specified by:

getLock in interface ClusterService

getClusterMembers

public Set<ClusterMember> getClusterMembers()

Specified by:

getClusterMembers in interface ClusterService

getQueue

private <Clazz extends Serializable> BlockingDeque<Clazz> getQueue(QueueDescriptor<Clazz> inQueueDescriptor)

Get the queue for the given descriptor.

Parameters:

inQueueDescriptor - a QueueDescriptor value

Returns:

a BlockingDeque<Clazz>value

getPrivateMap

private Map<String,String> getPrivateMap(String inMapName)

Get the map with the given name.

Parameters:

inMapName - a String value

Returns:

a Map<String,String> value

getExecutorService

private ExecutorService getExecutorService(String inPoolName)

Get the executor service for the given pool name.

Parameters:

inPoolName - a String value

Returns:

an ExecutorService value

getPrivateLock

private Lock getPrivateLock(String inLockName)

Get the lock with the given name.

Parameters:

inLockName - a String value

Returns:

a Lock value