| /* |
| * Copyright 2015-present 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 org.onosproject.net.intent.IntentState; |
| import org.slf4j.Logger; |
| |
| import java.util.Optional; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Represents a phase of requesting a purge of an intent. |
| * <p> |
| * Note: The purge will only succeed if the intent is FAILED or WITHDRAWN. |
| * </p> |
| */ |
| final class PurgeRequest extends FinalIntentProcessPhase { |
| |
| private static final Logger log = getLogger(PurgeRequest.class); |
| |
| private final IntentData data; |
| private final Optional<IntentData> stored; |
| |
| PurgeRequest(IntentData intentData, Optional<IntentData> stored) { |
| this.data = checkNotNull(intentData); |
| this.stored = checkNotNull(stored); |
| } |
| |
| private boolean shouldAcceptPurge() { |
| if (!stored.isPresent()) { |
| log.info("Purge for intent {}, but intent is not present", |
| data.key()); |
| return true; |
| } |
| |
| IntentData storedData = stored.get(); |
| if (storedData.state() == IntentState.WITHDRAWN |
| || storedData.state() == IntentState.FAILED) { |
| return true; |
| } |
| log.info("Purge for intent {} is rejected because intent state is {}", |
| data.key(), storedData.state()); |
| return false; |
| } |
| |
| @Override |
| public IntentData data() { |
| if (shouldAcceptPurge()) { |
| return data; |
| } else { |
| return stored.get(); |
| } |
| } |
| } |