com.google.code.rees.scope.conversation.context
Class DefaultConversationContextManager

java.lang.Object
  com.google.code.rees.scope.conversation.context.DefaultConversationContextManager

All Implemented Interfaces:

ConversationContextManager, Serializable

Direct Known Subclasses:

TimeoutConversationContextManager

public class DefaultConversationContextManager
extends Object
implements ConversationContextManager

The default implementation of the ConversationContextManager.

Author:

rees.byars

See Also:

Serialized Form

Field Summary

protected ConversationContextFactory	contextFactory
protected Map<String,Map<String,ConversationContext>>	conversations
protected int	maxInstances
protected long	nextId

Constructor Summary

DefaultConversationContextManager()

Method Summary

ConversationContext	createContext(String conversationName, long maxIdleTimeMillis) Creates a new context for the given conversation name, using the given idle time
void	destroy() Cleanup and release the manager's resources
ConversationContext	getContext(String conversationName, String conversationId) Retrieve the context identified by the given information, creating a new one if none exists.
protected String	getNextId()
ConversationContext	remove(String conversationName, String conversationId) Remove the context identified by the given information, returning the context being removed
protected void	removeMostStaleConversation(Map<String,ConversationContext> conversationContexts, String conversationName, long defaultDuration) Recursively removes the least-recently accessed conversations until the number of remaining conversations equals maxInstances
void	setContextFactory(ConversationContextFactory contextFactory) Set the ConversationContextFactory to be used by this manager
void	setMaxInstances(int maxInstances) Set the max number of cached ConversationContexts.

Methods inherited from class java.lang.Object

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

Field Detail

contextFactory

protected ConversationContextFactory contextFactory

conversations

protected Map<String,Map<String,ConversationContext>> conversations

maxInstances

protected int maxInstances

nextId

protected long nextId

Constructor Detail

DefaultConversationContextManager

public DefaultConversationContextManager()

Method Detail

setMaxInstances

public void setMaxInstances(int maxInstances)

Set the max number of cached ConversationContexts.

Specified by:

setMaxInstances in interface ConversationContextManager

setContextFactory

public void setContextFactory(ConversationContextFactory contextFactory)

Set the ConversationContextFactory to be used by this manager

Specified by:

setContextFactory in interface ConversationContextManager

createContext

public ConversationContext createContext(String conversationName,
                                         long maxIdleTimeMillis)

Creates a new context for the given conversation name, using the given idle time

Specified by:

createContext in interface ConversationContextManager

Returns:

getContext

public ConversationContext getContext(String conversationName,
                                      String conversationId)

Retrieve the context identified by the given information, creating a new one if none exists.

Specified by:

getContext in interface ConversationContextManager

Returns:

remove

public ConversationContext remove(String conversationName,
                                  String conversationId)

Remove the context identified by the given information, returning the context being removed

Specified by:

remove in interface ConversationContextManager

Returns:

destroy

public void destroy()

Cleanup and release the manager's resources

Specified by:

destroy in interface ConversationContextManager

removeMostStaleConversation

protected void removeMostStaleConversation(Map<String,ConversationContext> conversationContexts,
                                           String conversationName,
                                           long defaultDuration)

Recursively removes the least-recently accessed conversations until the number of remaining conversations equals maxInstances

getNextId

protected String getNextId()