org.graylog.events.indices.MoreIndices 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.graylog.events.indices;
import com.fasterxml.jackson.databind.ObjectMapper;
import io.searchbox.client.JestClient;
import io.searchbox.core.Bulk;
import io.searchbox.core.BulkResult;
import io.searchbox.core.Index;
import org.graylog.events.event.Event;
import org.graylog.events.event.EventDto;
import org.graylog.events.event.EventWithContext;
import org.graylog2.indexer.IndexMapping;
import org.graylog2.jackson.TypeReferences;
import org.graylog2.plugin.database.Persisted;
import org.graylog2.streams.StreamService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.inject.Inject;
import javax.inject.Singleton;
import java.io.IOException;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Set;
import java.util.stream.Collectors;
import static java.util.Objects.requireNonNull;
import static org.graylog2.plugin.Tools.buildElasticSearchTimeFormat;
import static org.joda.time.DateTimeZone.UTC;
/**
* This class contains indices helper for the events system.
*/
@Singleton
public class MoreIndices {
private static final Logger LOG = LoggerFactory.getLogger(MoreIndices.class);
private final JestClient jestClient;
private final ObjectMapper objectMapper;
private final StreamService streamService;
@Inject
public MoreIndices(JestClient jestClient, ObjectMapper objectMapper, StreamService streamService) {
this.jestClient = jestClient;
this.objectMapper = objectMapper;
this.streamService = streamService;
}
public void bulkIndex(List eventsWithContext) {
if (eventsWithContext.isEmpty()) {
return;
}
// Pre-load all write index targets of all events to avoid looking them up for every event when building the bulk request
final Set streamIds = eventsWithContext.stream()
.map(EventWithContext::event)
.flatMap(event -> event.getStreams().stream())
.collect(Collectors.toSet());
final Map streamIndices = streamService.loadByIds(streamIds).stream()
.collect(Collectors.toMap(Persisted::getId, stream -> stream.getIndexSet().getWriteIndexAlias()));
final Bulk.Builder bulk = new Bulk.Builder();
for (final EventWithContext eventWithContext : eventsWithContext) {
final Event event = eventWithContext.event();
final Map source = objectMapper.convertValue(event.toDto(), TypeReferences.MAP_STRING_OBJECT);
// "Fix" timestamps to be in the correct format. Our message index mapping is using this format so we have
// to use it for our events as well to make sure we can use the search without errors.
source.put(EventDto.FIELD_EVENT_TIMESTAMP, buildElasticSearchTimeFormat(requireNonNull(event.getEventTimestamp()).withZone(UTC)));
source.put(EventDto.FIELD_PROCESSING_TIMESTAMP, buildElasticSearchTimeFormat(requireNonNull(event.getProcessingTimestamp()).withZone(UTC)));
if (event.getTimerangeStart() != null) {
source.put(EventDto.FIELD_TIMERANGE_START, buildElasticSearchTimeFormat(event.getTimerangeStart().withZone(UTC)));
}
if (event.getTimerangeEnd() != null) {
source.put(EventDto.FIELD_TIMERANGE_END, buildElasticSearchTimeFormat(event.getTimerangeEnd().withZone(UTC)));
}
// We cannot index events that don't have any stream set
if (event.getStreams().isEmpty()) {
throw new IllegalStateException("Event streams cannot be empty");
}
// Collect a set of indices for the event to avoid writing to the same index set twice if
// multiple streams use the same index set.
final Set indices = event.getStreams().stream()
.map(streamId -> {
final String index = streamIndices.get(streamId);
if (index == null) {
LOG.warn("Couldn't find index set of stream <{}> for event <{}> (definition: {}/{})", streamId,
event.getId(), event.getEventDefinitionType(), event.getEventDefinitionId());
}
return index;
})
.filter(Objects::nonNull)
.collect(Collectors.toSet());
for (final String index : indices) {
bulk.addAction(new Index.Builder(source)
.index(index)
.type(IndexMapping.TYPE_MESSAGE)
.id(event.getId())
.build());
}
}
try {
final BulkResult result = jestClient.execute(bulk.build());
final List failedItems = result.getFailedItems();
if (!failedItems.isEmpty()) {
LOG.error("Failed to index {} events: {}", eventsWithContext.size(), result.getErrorMessage());
}
LOG.debug("Index: Bulk indexed {} events, failures: {}", result.getItems().size(), failedItems.size());
} catch (IOException e) {
LOG.error("Failed to index {} events", eventsWithContext.size(), e);
}
}
}