Java tutorial
/** * 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 <http://www.gnu.org/licenses/>. */ 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, WidgetCacheTime cacheTime, Map<String, Object> 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<String, Object> getPersistedConfig() { final Map<String, Object> inheritedConfig = super.getPersistedConfig(); final ImmutableMap.Builder<String, Object> 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); } }