Package org.apache.manifoldcf.crawler.notificationconnectorpool

Class NotificationConnectorPool

java.lang.Object

org.apache.manifoldcf.crawler.notificationconnectorpool.NotificationConnectorPool

All Implemented Interfaces:

INotificationConnectorPool

public class NotificationConnectorPool
extends java.lang.Object
implements INotificationConnectorPool

An implementation of INotificationConnectorPool. Coordination and allocation among cluster members is managed within. These objects are thread-local, so do not share them among threads.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	NotificationConnectorPool.LocalPool	Actual static mapping connector pool

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.String	_rcsid
protected static NotificationConnectorPool.LocalPool	localPool	Local connector pool
protected IThreadContext	threadContext	Thread context

Constructor Summary

Constructors

Constructor	Description
NotificationConnectorPool(IThreadContext threadContext)	Constructor

Method Summary

Modifier and Type	Method	Description
void	closeAllConnectors()	Clean up all open repository connector handles.
void	flushUnusedConnectors()	Flush only those connector handles that are currently unused.
INotificationConnector	grab(INotificationConnection notificationConnection)	Get a notification connector.
INotificationConnector[]	grabMultiple(java.lang.String[] orderingKeys, INotificationConnection[] notificationConnections)	Get multiple notification connectors, all at once.
void	pollAllConnectors()	Idle notification for inactive repository connector handles.
void	release(INotificationConnection connection, INotificationConnector connector)	Release a notification connector.
void	releaseMultiple(INotificationConnection[] connections, INotificationConnector[] connectors)	Release multiple notification connectors.

Methods inherited from class java.lang.Object

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

Field Detail

_rcsid

public static final java.lang.String _rcsid

See Also:

Constant Field Values

localPool

protected static final NotificationConnectorPool.LocalPool localPool

Local connector pool

threadContext

protected final IThreadContext threadContext

Thread context

Constructor Detail

NotificationConnectorPool

public NotificationConnectorPool(IThreadContext threadContext)
                          throws ManifoldCFException

Constructor

Throws:

ManifoldCFException

Method Detail

grabMultiple

public INotificationConnector[] grabMultiple(java.lang.String[] orderingKeys,
                                             INotificationConnection[] notificationConnections)
                                      throws ManifoldCFException

Get multiple notification connectors, all at once. Do this in a particular order so that any connector exhaustion will not cause a deadlock.

Specified by:

grabMultiple in interface INotificationConnectorPool

Parameters:

orderingKeys - are the keys which determine in what order the connectors are obtained.

notificationConnections - are the connections to use the build the connector instances.

Throws:

ManifoldCFException

grab

public INotificationConnector grab(INotificationConnection notificationConnection)
                            throws ManifoldCFException

Get a notification connector. The connector is specified by a notification connection object.

Specified by:

grab in interface INotificationConnectorPool

Parameters:

notificationConnection - is the notification connection to base the connector instance on.

Throws:

ManifoldCFException

releaseMultiple

public void releaseMultiple(INotificationConnection[] connections,
                            INotificationConnector[] connectors)
                     throws ManifoldCFException

Release multiple notification connectors.

Specified by:

releaseMultiple in interface INotificationConnectorPool

Parameters:

connections - are the connections describing the instances to release.

connectors - are the connector instances to release.

Throws:

ManifoldCFException

release

public void release(INotificationConnection connection,
                    INotificationConnector connector)
             throws ManifoldCFException

Release a notification connector.

Specified by:

release in interface INotificationConnectorPool

Parameters:

connection - is the connection describing the instance to release.

connector - is the connector to release.

Throws:

ManifoldCFException

pollAllConnectors

public void pollAllConnectors()
                       throws ManifoldCFException

Idle notification for inactive repository connector handles. This method polls all inactive handles.

Specified by:

pollAllConnectors in interface INotificationConnectorPool

Throws:

ManifoldCFException

flushUnusedConnectors

public void flushUnusedConnectors()
                           throws ManifoldCFException

Flush only those connector handles that are currently unused.

Specified by:

flushUnusedConnectors in interface INotificationConnectorPool

Throws:

ManifoldCFException

closeAllConnectors

public void closeAllConnectors()
                        throws ManifoldCFException

Clean up all open repository connector handles. This method is called when the connector pool needs to be flushed, to free resources.

Specified by:

closeAllConnectors in interface INotificationConnectorPool

Throws:

ManifoldCFException