diff options
Diffstat (limited to 'dcae-analytics/dcae-analytics-tca-web/src/main/java/org/onap/dcae/analytics/tca/web/abatement/simple/SimpleAbatementRepository.java')
-rw-r--r-- | dcae-analytics/dcae-analytics-tca-web/src/main/java/org/onap/dcae/analytics/tca/web/abatement/simple/SimpleAbatementRepository.java | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/dcae-analytics/dcae-analytics-tca-web/src/main/java/org/onap/dcae/analytics/tca/web/abatement/simple/SimpleAbatementRepository.java b/dcae-analytics/dcae-analytics-tca-web/src/main/java/org/onap/dcae/analytics/tca/web/abatement/simple/SimpleAbatementRepository.java new file mode 100644 index 0000000..452f07f --- /dev/null +++ b/dcae-analytics/dcae-analytics-tca-web/src/main/java/org/onap/dcae/analytics/tca/web/abatement/simple/SimpleAbatementRepository.java @@ -0,0 +1,89 @@ +/* + * ================================================================================ + * Copyright (c) 2018 AT&T Intellectual Property. All rights reserved. + * ================================================================================ + * 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. + * ============LICENSE_END========================================================= + * + */ + +package org.onap.dcae.analytics.tca.web.abatement.simple; + +import static org.onap.dcae.analytics.model.TcaModelConstants.TCA_ABATEMENT_SIMPLE_REPOSITORY_MAX_ENTITY_COUNT; +import static org.onap.dcae.analytics.model.TcaModelConstants.TCA_ABATEMENT_SIMPLE_REPOSITORY_REMOVE_ENTITY_COUNT; + +import java.util.Collections; +import java.util.List; +import java.util.concurrent.ConcurrentHashMap; +import java.util.concurrent.ConcurrentLinkedQueue; + +import org.onap.dcae.analytics.tca.core.service.TcaAbatementEntity; +import org.onap.dcae.analytics.tca.core.service.TcaAbatementRepository; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** + * A simple implementation for {@link TcaAbatementRepository} which should be used for testing and development + * purposes only. + * + * @author Rajiv Singla + */ +public class SimpleAbatementRepository implements TcaAbatementRepository { + + private static final Logger logger = LoggerFactory.getLogger(SimpleAbatementRepository.class); + + private final ConcurrentLinkedQueue<String> lookupKeysQueue; + private final ConcurrentHashMap<String, SimpleAbatementEntity> repository; + + public SimpleAbatementRepository() { + this.lookupKeysQueue = new ConcurrentLinkedQueue<>(); + this.repository = new ConcurrentHashMap<>(TCA_ABATEMENT_SIMPLE_REPOSITORY_MAX_ENTITY_COUNT); + } + + + @Override + public synchronized void save(final TcaAbatementEntity tcaAbatementEntity) { + + // remove entries from repository if required + if (lookupKeysQueue.size() == TCA_ABATEMENT_SIMPLE_REPOSITORY_MAX_ENTITY_COUNT) { + + logger.warn("Simple Abatement Repository reached its max allowed size: {}, " + + "Removing last inserted {} entries", + TCA_ABATEMENT_SIMPLE_REPOSITORY_MAX_ENTITY_COUNT, + TCA_ABATEMENT_SIMPLE_REPOSITORY_REMOVE_ENTITY_COUNT); + + for (int i = 0; i < TCA_ABATEMENT_SIMPLE_REPOSITORY_REMOVE_ENTITY_COUNT; i++) { + final String lookupKey = lookupKeysQueue.poll(); + logger.warn("Removing Abatement Lookup key: {} from Simple Abatement Repository", lookupKey); + repository.remove(lookupKey); + } + + } + + lookupKeysQueue.add(tcaAbatementEntity.getLookupKey()); + final SimpleAbatementEntity simpleAbatementEntity = + new SimpleAbatementEntity(tcaAbatementEntity.getLookupKey(), tcaAbatementEntity.getRequestId(), + tcaAbatementEntity.isAbatementAlertSent()); + repository.put(tcaAbatementEntity.getLookupKey(), simpleAbatementEntity); + + } + + @Override + public List<TcaAbatementEntity> findByLookupKey(final String lookUpKey) { + final SimpleAbatementEntity repoEntity = repository.getOrDefault(lookUpKey, null); + if (repoEntity == null) { + return Collections.emptyList(); + } + return Collections.singletonList(repoEntity); + } +} |