org.onosproject.net.intent

Interface IntentService

public interface IntentService

Service for application submitting or withdrawing their intents.

Method Summary

Modifier and Type	Method and Description
void	addListener(IntentListener listener) Adds the specified listener for intent events.
List<Intent>	getInstallableIntents(Key intentKey) Returns the list of the installable events associated with the specified top-level intent.
Intent	getIntent(Key key) Fetches an intent based on its key.
long	getIntentCount() Returns the number of intents currently in the system.
Iterable<IntentData>	getIntentData() Returns an iterable of intent data objects currently in the system.
Iterable<Intent>	getIntents() Returns an iterable of intents currently in the system.
IntentState	getIntentState(Key intentKey) Retrieves the state of an intent by its identifier.
Iterable<Intent>	getPending() Returns the list of intent requests pending processing.
boolean	isLocal(Key intentKey) Signifies whether the local node is responsible for processing the given intent key.
void	purge(Intent intent) Purges a specific intent from the system if it is FAILED or WITHDRAWN.
void	removeListener(IntentListener listener) Removes the specified listener for intent events.
void	submit(Intent intent) Submits an intent into the system.
void	withdraw(Intent intent) Withdraws an intent from the system.

Method Detail

submit

void submit(Intent intent)

Submits an intent into the system.

This is an asynchronous request meaning that any compiling or installation activities may be done at later time.

Parameters:

intent - intent to be submitted

withdraw

void withdraw(Intent intent)

Withdraws an intent from the system.

This is an asynchronous request meaning that the environment may be affected at later time.

Parameters:

intent - intent to be withdrawn

purge

void purge(Intent intent)

Purges a specific intent from the system if it is FAILED or WITHDRAWN. Otherwise, the intent remains in its current state.

Parameters:

intent - intent to purge

getIntent

Intent getIntent(Key key)

Fetches an intent based on its key.

Parameters:

key - key of the intent

Returns:

intent object if the key is found, null otherwise

getIntents

Iterable<Intent> getIntents()

Returns an iterable of intents currently in the system.

Returns:

set of intents

getIntentData

Iterable<IntentData> getIntentData()

Returns an iterable of intent data objects currently in the system.

Returns:

set of intent data objects

getIntentCount

long getIntentCount()

Returns the number of intents currently in the system.

Returns:

number of intents

getIntentState

IntentState getIntentState(Key intentKey)

Retrieves the state of an intent by its identifier.

Parameters:

intentKey - intent identifier

Returns:

the intent state or null if one with the given identifier is not found

getInstallableIntents

List<Intent> getInstallableIntents(Key intentKey)

Returns the list of the installable events associated with the specified top-level intent.

Parameters:

intentKey - top-level intent identifier

Returns:

compiled installable intents

isLocal

boolean isLocal(Key intentKey)

Signifies whether the local node is responsible for processing the given intent key.

Parameters:

intentKey - intent key to check

Returns:

true if the local node is responsible for the intent key, otherwise false

getPending

Iterable<Intent> getPending()

Returns the list of intent requests pending processing.

Returns:

intents pending processing

addListener

void addListener(IntentListener listener)

Adds the specified listener for intent events.

Parameters:

listener - listener to be added

removeListener

void removeListener(IntentListener listener)

Removes the specified listener for intent events.

Parameters:

listener - listener to be removed