org.graylog2.events.ClusterEventCleanupPeriodical Maven / Gradle / Ivy
/**
* This file is part of Graylog.
*
* Graylog is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Graylog is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Graylog. If not, see .
*/
package org.graylog2.events;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.primitives.Ints;
import com.mongodb.WriteConcern;
import org.graylog2.bindings.providers.MongoJackObjectMapperProvider;
import org.graylog2.database.MongoConnection;
import org.graylog2.plugin.periodical.Periodical;
import org.joda.time.DateTime;
import org.joda.time.DateTimeZone;
import org.mongojack.DBQuery;
import org.mongojack.JacksonDBCollection;
import org.mongojack.WriteResult;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.inject.Inject;
import java.util.concurrent.TimeUnit;
import static com.google.common.base.Preconditions.checkNotNull;
public class ClusterEventCleanupPeriodical extends Periodical {
private static final Logger LOG = LoggerFactory.getLogger(ClusterEventCleanupPeriodical.class);
private static final String COLLECTION_NAME = ClusterEventPeriodical.COLLECTION_NAME;
@VisibleForTesting
static final long DEFAULT_MAX_EVENT_AGE = TimeUnit.DAYS.toMillis(1L);
private final JacksonDBCollection dbCollection;
private final long maxEventAge;
@Inject
public ClusterEventCleanupPeriodical(final MongoJackObjectMapperProvider mapperProvider,
final MongoConnection mongoConnection) {
this(JacksonDBCollection.wrap(mongoConnection.getDatabase().getCollection(COLLECTION_NAME),
ClusterEvent.class, String.class, mapperProvider.get()), DEFAULT_MAX_EVENT_AGE);
}
ClusterEventCleanupPeriodical(final JacksonDBCollection dbCollection, final long maxEventAge) {
this.dbCollection = checkNotNull(dbCollection);
this.maxEventAge = maxEventAge;
}
@Override
public boolean runsForever() {
return false;
}
@Override
public boolean stopOnGracefulShutdown() {
return true;
}
@Override
public boolean masterOnly() {
return true;
}
@Override
public boolean startOnThisNode() {
return true;
}
@Override
public boolean isDaemon() {
return true;
}
@Override
public int getInitialDelaySeconds() {
return 0;
}
@Override
public int getPeriodSeconds() {
return Ints.saturatedCast(TimeUnit.DAYS.toSeconds(1L));
}
@Override
protected Logger getLogger() {
return LOG;
}
@Override
public void doRun() {
try {
LOG.debug("Removing stale events from MongoDB collection \"{}\"", COLLECTION_NAME);
final long timestamp = DateTime.now(DateTimeZone.UTC).getMillis() - maxEventAge;
final DBQuery.Query query = DBQuery.lessThan("timestamp", timestamp);
final WriteResult writeResult = dbCollection.remove(query, WriteConcern.JOURNALED);
LOG.debug("Removed {} stale events from \"{}\"", writeResult.getN(), COLLECTION_NAME);
} catch (Exception e) {
LOG.warn("Error while removing stale cluster events from MongoDB", e);
}
}
}