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Graylog

There is a newer version: 6.0.6

/**
 * 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;

import com.codahale.metrics.MetricRegistry;
import com.google.common.collect.ImmutableMap;
import org.graylog2.indexer.searches.Searches;
import org.graylog2.indexer.searches.timeranges.TimeRange;

import java.util.Map;

import static com.google.common.base.Strings.isNullOrEmpty;

public class StreamSearchResultCountWidget extends SearchResultCountWidget {
    private final String streamId;

    public StreamSearchResultCountWidget(MetricRegistry metricRegistry, Searches searches, String id, String description, int cacheTime, Map config, String query, TimeRange timeRange, String creatorUserId) {
        super(metricRegistry, DashboardWidget.Type.STREAM_SEARCH_RESULT_COUNT, searches, id, description, cacheTime, config, query, timeRange, creatorUserId);
        this.streamId = (String) config.get("stream_id");
    }

    @Override
    public Map getPersistedConfig() {
        final Map inheritedConfig = super.getPersistedConfig();
        final ImmutableMap.Builder persistedConfig = ImmutableMap.builder();
        persistedConfig.putAll(inheritedConfig);
        if (!isNullOrEmpty(streamId)) {
            persistedConfig.put("stream_id", streamId);
        }

        return persistedConfig.build();
    }

    @Override
    protected ComputationResult compute() {
        String filter = null;
        if (!isNullOrEmpty(streamId)) {
            filter = "streams:" + streamId;
        }
        return computeInternal(filter);
    }
}