Package nl.rrd.wool.execution

Class ActiveWoolDialogue

java.lang.Object

nl.rrd.wool.execution.ActiveWoolDialogue

public class ActiveWoolDialogue
extends Object

An ActiveWoolDialogue is a wrapper around a WoolDialogue, which contains a static definition of a dialogue (referred to as the dialogueDefinition). The ActiveWoolDialogue also contains utility functions to keep track of the state during "execution" of the dialogue.

Constructor Summary

Constructors

Constructor	Description
ActiveWoolDialogue(WoolDialogueDescription dialogueDescription, WoolDialogue dialogueDefinition)

Method Summary

Modifier and Type	Method	Description
WoolNode	getCurrentNode()
WoolDialogue	getDialogueDefinition()
WoolDialogueDescription	getDialogueDescription()
String	getDialogueName()	Returns the name of this ActiveWoolDialogue as defined in the associated WoolDialogue.
DialogueState	getDialogueState()
String	getUserStatementFromReplyId(int replyId)	The user's client returned the given replyId - what was the statement that was uttered by the user?
WoolVariableStore	getWoolVariableStore()	Returns the WoolVariableStore associated with this ActiveWoolDialogue.
WoolNodePointer	processReplyAndGetNodePointer(int replyId)	Retrieves the pointer to the next node based on the provided reply id.
WoolNode	progressDialogue(WoolNodePointerInternal nodePointer)	Takes the next node pointer from the selected reply and determines the next node.
void	setCurrentNode(WoolNode currentNode)
void	setDialogueState(DialogueState dialogueState)
void	setWoolVariableStore(WoolVariableStore woolVariableStore)	Sets the WoolVariableStore used to store/retrieve parameters for this ActiveWoolDialogue.
WoolNode	startDialogue()	"Starts" this ActiveWoolDialogue, returning the start node and updating its internal state.
WoolNode	startDialogue(String nodeId)	"Starts" this ActiveWoolDialogue at the provided WoolNode, returning that node and updating the dialogue's internal state.
void	storeReplyInput(Map<String,?> variables)

Methods inherited from class java.lang.Object

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

Constructor Detail

ActiveWoolDialogue

public ActiveWoolDialogue(WoolDialogueDescription dialogueDescription,
                          WoolDialogue dialogueDefinition)

Method Detail

getDialogueDescription

public WoolDialogueDescription getDialogueDescription()

getDialogueDefinition

public WoolDialogue getDialogueDefinition()

getCurrentNode

public WoolNode getCurrentNode()

getDialogueState

public DialogueState getDialogueState()

getWoolVariableStore

public WoolVariableStore getWoolVariableStore()

Returns the WoolVariableStore associated with this ActiveWoolDialogue.

Returns:

the WoolVariableStore associated with this ActiveWoolDialogue.

setCurrentNode

public void setCurrentNode(WoolNode currentNode)

setDialogueState

public void setDialogueState(DialogueState dialogueState)

setWoolVariableStore

public void setWoolVariableStore(WoolVariableStore woolVariableStore)

Sets the WoolVariableStore used to store/retrieve parameters for this ActiveWoolDialogue.

Parameters:

woolVariableStore - the WoolVariableStore used to store/retrieve parameters for this ActiveWoolDialogue.

getDialogueName

public String getDialogueName()

Returns the name of this ActiveWoolDialogue as defined in the associated WoolDialogue.

Returns:

the name of this ActiveWoolDialogue as defined in the associated WoolDialogue.

startDialogue

public WoolNode startDialogue()
                       throws WoolException,
                              EvaluationException

"Starts" this ActiveWoolDialogue, returning the start node and updating its internal state.

Returns:

the initial WoolNode.

Throws:

WoolException - if the request is invalid

EvaluationException - if an expression cannot be evaluated

startDialogue

public WoolNode startDialogue(String nodeId)
                       throws WoolException,
                              EvaluationException

"Starts" this ActiveWoolDialogue at the provided WoolNode, returning that node and updating the dialogue's internal state. If you set the nodeId to null, it will return the start node.

Parameters:

nodeId - the node ID or null

Returns:

the WoolNode

Throws:

WoolException - if the request is invalid

EvaluationException - if an expression cannot be evaluated

processReplyAndGetNodePointer

public WoolNodePointer processReplyAndGetNodePointer(int replyId)
                                              throws EvaluationException

Retrieves the pointer to the next node based on the provided reply id. This might be a pointer to the end node. This method also performs any "set" actions associated with the reply.

Parameters:

replyId - the reply ID

Returns:

WoolNodePointer the pointer to the next node

Throws:

EvaluationException - if an expression cannot be evaluated

progressDialogue

public WoolNode progressDialogue(WoolNodePointerInternal nodePointer)
                          throws EvaluationException

Takes the next node pointer from the selected reply and determines the next node. The pointer might point to the end note, which means that there is no next node. If there is no next node, or the next node has no reply options, then the dialogue is considered finished.

If there is a next node, then it returns the executed version of that next WoolNode which results from a call to the executeWoolNode(WoolNode) function.

Parameters:

nodePointer - the next node pointer from the selected reply

Returns:

the next WoolNode that follows on the selected reply or null

Throws:

EvaluationException - if an expression cannot be evaluated

storeReplyInput

public void storeReplyInput(Map<String,?> variables)

getUserStatementFromReplyId

public String getUserStatementFromReplyId(int replyId)
                                   throws WoolException

The user's client returned the given replyId - what was the statement that was uttered by the user?

Parameters:

replyId - the reply ID

Returns:

the statement

Throws:

WoolException - if no reply with the specified ID is found