org.graylog2.dashboards.widgets.strategies.SearchResultCountWidgetStrategy 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.common.collect.Maps;
import com.google.inject.assistedinject.Assisted;
import com.google.inject.assistedinject.AssistedInject;
import org.graylog2.indexer.results.CountResult;
import org.graylog2.indexer.searches.Searches;
import org.graylog2.plugin.dashboards.widgets.ComputationResult;
import org.graylog2.plugin.dashboards.widgets.WidgetStrategy;
import org.graylog2.plugin.indexer.searches.timeranges.AbsoluteRange;
import org.graylog2.plugin.indexer.searches.timeranges.RelativeRange;
import org.graylog2.plugin.indexer.searches.timeranges.TimeRange;
import org.joda.time.DateTime;
import org.joda.time.Seconds;
import java.util.Map;
public class SearchResultCountWidgetStrategy implements WidgetStrategy {
public interface Factory extends WidgetStrategy.Factory {
@Override
SearchResultCountWidgetStrategy create(Map config, TimeRange timeRange, String widgetId);
}
protected final Searches searches;
protected final String query;
protected final TimeRange timeRange;
protected final Boolean trend;
protected final Boolean lowerIsBetter;
@AssistedInject
public SearchResultCountWidgetStrategy(Searches searches, @Assisted Map config, @Assisted TimeRange timeRange, @Assisted String widgetId) {
this.searches = searches;
this.query = (String)config.get("query");
this.timeRange = timeRange;
this.trend = config.get("trend") != null && Boolean.parseBoolean(String.valueOf(config.get("trend")));
this.lowerIsBetter = config.get("lower_is_better") != null && Boolean.parseBoolean(String.valueOf(config.get("lower_is_better")));
}
protected Searches getSearches() {
return searches;
}
@Override
public ComputationResult compute() {
return computeInternal(null);
}
protected ComputationResult computeInternal(String filter) {
final TimeRange timeRange = this.timeRange;
CountResult cr = searches.count(query, timeRange, filter);
if (trend && timeRange instanceof RelativeRange) {
DateTime toPrevious = timeRange.getFrom();
DateTime fromPrevious = toPrevious.minus(Seconds.seconds(((RelativeRange) timeRange).getRange()));
TimeRange previousTimeRange = AbsoluteRange.create(fromPrevious, toPrevious);
CountResult previousCr = searches.count(query, previousTimeRange);
Map results = Maps.newHashMap();
results.put("now", cr.count());
results.put("previous", previousCr.count());
long tookMs = cr.tookMs() + previousCr.tookMs();
return new ComputationResult(results, tookMs);
} else {
return new ComputationResult(cr.count(), cr.tookMs());
}
}
}