org.graylog2.dashboards.widgets.strategies.QuickvaluesHistogramWidgetStrategy 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.dashboards.widgets.strategies;
import com.google.inject.assistedinject.Assisted;
import com.google.inject.assistedinject.AssistedInject;
import org.graylog2.dashboards.widgets.InvalidWidgetConfigurationException;
import org.graylog2.indexer.searches.Searches;
import org.graylog2.indexer.searches.Sorting;
import org.graylog2.plugin.dashboards.widgets.ComputationResult;
import org.graylog2.plugin.dashboards.widgets.WidgetStrategy;
import org.graylog2.plugin.indexer.searches.timeranges.TimeRange;
import org.graylog2.rest.models.search.responses.TermsHistogramResult;
import org.graylog2.utilities.SearchUtils;
import java.util.Map;
import static com.google.common.base.MoreObjects.firstNonNull;
import static com.google.common.base.Strings.isNullOrEmpty;
import static org.graylog2.utilities.SearchUtils.buildTermsHistogramResult;
public class QuickvaluesHistogramWidgetStrategy extends QuickvaluesBaseWidgetStrategy {
public interface Factory extends WidgetStrategy.Factory {
@Override
QuickvaluesHistogramWidgetStrategy create(Map config, TimeRange timeRange, String widgetId);
}
private final int limit;
private final Searches.DateHistogramInterval interval;
@AssistedInject
public QuickvaluesHistogramWidgetStrategy(Searches searches,
@Assisted Map config,
@Assisted TimeRange timeRange,
@Assisted String widgetId) throws InvalidWidgetConfigurationException {
super(searches, timeRange, config, widgetId);
this.limit = (int) firstNonNull(config.get("limit"), 5);
this.interval = SearchUtils.buildInterval((String) config.get("interval"), timeRange);
}
@Override
public ComputationResult compute() {
String filter = null;
if (!isNullOrEmpty(streamId)) {
filter = "streams:" + streamId;
}
final Sorting.Direction sortDirection = getSortingDirection(sortOrder);
final TermsHistogramResult termsHistogram = buildTermsHistogramResult(searches.termsHistogram(field, stackedFields, limit, query, filter, timeRange, interval, sortDirection));
return new ComputationResult(termsHistogram, termsHistogram.time());
}
}