| /* |
| * Copyright 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.impl.phase; |
| |
| import org.onosproject.net.intent.IntentData; |
| |
| import java.util.Optional; |
| |
| /** |
| * Represents a final phase of processing an intent. |
| */ |
| public abstract class FinalIntentProcessPhase implements IntentProcessPhase { |
| |
| @Override |
| public final Optional<IntentProcessPhase> execute() { |
| preExecute(); |
| return Optional.empty(); |
| } |
| |
| /** |
| * Executes operations that must take place before the phase starts. |
| */ |
| protected void preExecute() {} |
| |
| /** |
| * Returns the IntentData object being acted on by this phase. |
| * |
| * @return intent data object for the phase |
| */ |
| public abstract IntentData data(); |
| } |