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/*-
* ============LICENSE_START=======================================================
* SDC
* ================================================================================
* Copyright (C) 2017 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.openecomp.sdc.notification.dao.impl;
import static java.util.Objects.isNull;
import com.datastax.driver.mapping.Mapper;
import com.datastax.driver.mapping.Result;
import com.datastax.driver.mapping.annotations.Accessor;
import com.datastax.driver.mapping.annotations.Query;
import com.google.common.collect.Sets;
import java.util.Collection;
import java.util.Collections;
import java.util.Objects;
import java.util.Set;
import org.openecomp.core.dao.impl.CassandraBaseDao;
import org.openecomp.core.nosqldb.api.NoSqlDb;
import org.openecomp.core.nosqldb.factory.NoSqlDbFactory;
import org.openecomp.sdc.notification.dao.SubscribersDao;
import org.openecomp.sdc.notification.dao.types.SubscribersEntity;
public class SubscribersDaoCassandraImpl extends CassandraBaseDao<SubscribersEntity> implements SubscribersDao {
private static final NoSqlDb noSqlDb = NoSqlDbFactory.getInstance().createInterface();
private static final Mapper<SubscribersEntity> mapper = noSqlDb.getMappingManager().mapper(SubscribersEntity.class);
private static final SubscribersAccessor accessor = noSqlDb.getMappingManager().createAccessor(SubscribersAccessor.class);
@Override
protected Object[] getKeys(SubscribersEntity entity) {
return new Object[]{entity.getEntityId()};
}
@Override
protected Mapper<SubscribersEntity> getMapper() {
return mapper;
}
@Override
public void subscribe(String ownerId, String entityId) {
Objects.requireNonNull(ownerId);
Objects.requireNonNull(entityId);
accessor.subscribe(Sets.newHashSet(ownerId), entityId);
}
@Override
@Deprecated
public Collection<SubscribersEntity> list(SubscribersEntity entity) {
throw new UnsupportedOperationException();
}
@Override
public void unsubscribe(String ownerId, String entityId) {
Objects.requireNonNull(ownerId);
Objects.requireNonNull(entityId);
accessor.unsubscribe(Sets.newHashSet(ownerId), entityId);
}
@Override
public Set<String> getSubscribers(String entityId) {
Objects.requireNonNull(entityId);
SubscribersEntity subscribersEntity = accessor.getSubscribers(entityId).one();
if (isNull(subscribersEntity)) {
return Collections.emptySet();
}
return subscribersEntity.getSubscribers();
}
@Accessor
interface SubscribersAccessor {
@Query("select * from notification_subscribers where entity_id=?")
Result<SubscribersEntity> getSubscribers(String entityId);
@Query("update notification_subscribers set subscribers=subscribers+? WHERE entity_id=?")
void subscribe(Set<String> ownerId, String entityId);
@Query("update notification_subscribers set subscribers=subscribers-? WHERE entity_id=?")
void unsubscribe(Set<String> ownerId, String entityId);
}
}
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