| /* |
| * Copyright 2014-2015 Open Networking Laboratory |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.onosproject.net.intent; |
| |
| |
| import java.util.List; |
| |
| /** |
| * Service for application submitting or withdrawing their intents. |
| */ |
| public interface IntentService { |
| /** |
| * Submits an intent into the system. |
| * <p> |
| * This is an asynchronous request meaning that any compiling or |
| * installation activities may be done at later time. |
| * </p> |
| * @param intent intent to be submitted |
| */ |
| void submit(Intent intent); |
| |
| /** |
| * Withdraws an intent from the system. |
| * <p> |
| * This is an asynchronous request meaning that the environment may be |
| * affected at later time. |
| * </p> |
| * @param intent intent to be withdrawn |
| */ |
| void withdraw(Intent intent); |
| |
| /** |
| * Purges a specific intent from the system if it is <b>FAILED</b> or |
| * <b>WITHDRAWN</b>. Otherwise, the intent remains in its current state. |
| * |
| * @param intent intent to purge |
| */ |
| void purge(Intent intent); |
| |
| /** |
| * Fetches an intent based on its key. |
| * |
| * @param key key of the intent |
| * @return intent object if the key is found, null otherwise |
| */ |
| Intent getIntent(Key key); |
| |
| /** |
| * Returns an iterable of intents currently in the system. |
| * |
| * @return set of intents |
| */ |
| Iterable<Intent> getIntents(); |
| |
| /** |
| * Returns the number of intents currently in the system. |
| * |
| * @return number of intents |
| */ |
| long getIntentCount(); |
| |
| /** |
| * Retrieves the state of an intent by its identifier. |
| * |
| * @param intentKey intent identifier |
| * @return the intent state or null if one with the given identifier is not |
| * found |
| */ |
| IntentState getIntentState(Key intentKey); |
| |
| /** |
| * Returns the list of the installable events associated with the specified |
| * top-level intent. |
| * |
| * @param intentKey top-level intent identifier |
| * @return compiled installable intents |
| */ |
| List<Intent> getInstallableIntents(Key intentKey); |
| |
| /** |
| * Signifies whether the local node is responsible for processing the given |
| * intent key. |
| * |
| * @param intentKey intent key to check |
| * @return true if the local node is responsible for the intent key, |
| * otherwise false |
| */ |
| boolean isLocal(Key intentKey); |
| |
| /** |
| * Returns the list of intent requests pending processing. |
| * |
| * @return intents pending processing |
| */ |
| Iterable<Intent> getPending(); |
| |
| /** |
| * Adds the specified listener for intent events. |
| * |
| * @param listener listener to be added |
| */ |
| void addListener(IntentListener listener); |
| |
| /** |
| * Removes the specified listener for intent events. |
| * |
| * @param listener listener to be removed |
| */ |
| void removeListener(IntentListener listener); |
| } |