Package org.apache.manifoldcf.core.connectorpool

Class ConnectorPool.Pool

java.lang.Object

org.apache.manifoldcf.core.connectorpool.ConnectorPool.Pool

Enclosing class:

ConnectorPool<T extends IConnector>

protected class ConnectorPool.Pool
extends java.lang.Object

This class represents a value in the pool hash, which corresponds to a given key.

Field Summary

Fields

Modifier and Type	Field	Description
protected int	globalMax	The global maximum for this pool
protected boolean	isAlive	Whether this pool is alive
protected int	localInUse	The number of instances that are actually connected and in use, as of the last poll
protected int	localMax	The number of instances we are allowed to hand out locally, at this time
protected int	numFree	The number of local instances we can currently pass out to requesting threads.
protected java.lang.String	serviceName	The (anonymous) service name
protected java.lang.String	serviceTypeName	Service type name
protected java.util.List<T>	stack	Place where we keep unused connector instances
protected java.lang.String	targetCalcLockName	The target calculation lock name

Constructor Summary

Constructors

Constructor	Description
Pool(IThreadContext threadContext, int maxCount, java.lang.String connectionName)	Constructor

Method Summary

Modifier and Type	Method	Description
void	flushUnused(IThreadContext threadContext)	Flush unused connectors.
T	getConnector(IThreadContext threadContext, java.lang.String className, ConfigParams configParams)	Grab a connector.
void	pollAll(IThreadContext threadContext)	Notify all free connectors.
void	releaseAll(IThreadContext threadContext)	Release all free connectors.
void	releaseConnector(IThreadContext threadContext, T connector)	Release a connector to the pool.
void	updateMaximumPoolSize(IThreadContext threadContext, int maxPoolSize)	Update the maximum pool size.

Methods inherited from class java.lang.Object

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

Field Detail

isAlive

protected boolean isAlive

Whether this pool is alive

globalMax

protected int globalMax

The global maximum for this pool

serviceTypeName

protected final java.lang.String serviceTypeName

Service type name

serviceName

protected final java.lang.String serviceName

The (anonymous) service name

targetCalcLockName

protected final java.lang.String targetCalcLockName

The target calculation lock name

stack

protected final java.util.List<T extends IConnector> stack

Place where we keep unused connector instances

numFree

protected int numFree

The number of local instances we can currently pass out to requesting threads. Initially zero until pool is apportioned

localMax

protected int localMax

The number of instances we are allowed to hand out locally, at this time

localInUse

protected int localInUse

The number of instances that are actually connected and in use, as of the last poll

Constructor Detail

Pool

public Pool(IThreadContext threadContext,
            int maxCount,
            java.lang.String connectionName)
     throws ManifoldCFException

Constructor

Throws:

ManifoldCFException

Method Detail

updateMaximumPoolSize

public void updateMaximumPoolSize(IThreadContext threadContext,
                                  int maxPoolSize)
                           throws ManifoldCFException

Update the maximum pool size.

Parameters:

maxPoolSize - is the new global maximum pool size.

Throws:

ManifoldCFException

getConnector

public T getConnector(IThreadContext threadContext,
                      java.lang.String className,
                      ConfigParams configParams)
               throws ManifoldCFException

Grab a connector. If none exists, construct it using the information in the pool key.

Returns:

the connector, or null if no connector could be connected.

Throws:

ManifoldCFException

releaseConnector

public void releaseConnector(IThreadContext threadContext,
                             T connector)
                      throws ManifoldCFException

Release a connector to the pool.

Parameters:

connector - is the connector.

Throws:

ManifoldCFException

pollAll

public void pollAll(IThreadContext threadContext)
             throws ManifoldCFException

Notify all free connectors.

Throws:

ManifoldCFException

flushUnused

public void flushUnused(IThreadContext threadContext)
                 throws ManifoldCFException

Flush unused connectors.

Throws:

ManifoldCFException

releaseAll

public void releaseAll(IThreadContext threadContext)
                throws ManifoldCFException

Release all free connectors.

Throws:

ManifoldCFException