/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.ambari.server.cleanup;
import java.util.Set;
import javax.inject.Inject;
import org.apache.ambari.server.orm.dao.Cleanable;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.inject.Singleton;
/**
* Service in charge to perform the cleanup/purge on the entities that support this functionality.
*/
@Singleton
public class CleanupServiceImpl implements CleanupService<TimeBasedCleanupPolicy> {
private static final Logger LOGGER = LoggerFactory.getLogger(CleanupServiceImpl.class);
// this Set is automatically populated by the guice framework (based on the cleanup interface)
private Set<Cleanable> cleanables;
/**
* Constructor for testing purposes.
*
* @param cleanables
*/
@Inject
protected CleanupServiceImpl(Set<Cleanable> cleanables) {
this.cleanables = cleanables;
}
/**
* Triggers the cleanup process on the registered DAOs.
*
* @param cleanupPolicy the policy based on which the cleanup is done
* @return the number of affected rows
*/
public long cleanup(TimeBasedCleanupPolicy cleanupPolicy) {
long affectedRows = 0;
for (Cleanable cleanable : cleanables) {
LOGGER.info("Running the purge process for DAO: [{}] with cleanup policy: [{}]", cleanable, cleanupPolicy);
affectedRows += cleanable.cleanup(cleanupPolicy);
}
return affectedRows;
}
}