code: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You under the Apache License, Version 2.0
   * (the "License"); you may not use this file except in compliance with
   * the License.  You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   *
   */
  
  package org.apache.skywalking.oap.server.storage.plugin.banyandb.stream;
  
  import com.google.common.collect.ImmutableSet;
  import org.apache.skywalking.banyandb.v1.client.RowEntity;
  import org.apache.skywalking.banyandb.v1.client.StreamQuery;
  import org.apache.skywalking.banyandb.v1.client.StreamQueryResponse;
  import org.apache.skywalking.banyandb.v1.client.TimestampRange;
  import org.apache.skywalking.oap.server.core.analysis.IDManager;
  import org.apache.skywalking.oap.server.core.analysis.TimeBucket;
  import org.apache.skywalking.oap.server.core.analysis.manual.log.AbstractLogRecord;
  import org.apache.skywalking.oap.server.core.analysis.manual.log.LogRecord;
  import org.apache.skywalking.oap.server.core.analysis.manual.searchtag.Tag;
  import org.apache.skywalking.oap.server.core.query.enumeration.Order;
  import org.apache.skywalking.oap.server.core.query.input.Duration;
  import org.apache.skywalking.oap.server.core.query.input.TraceScopeCondition;
  import org.apache.skywalking.oap.server.core.query.type.ContentType;
  import org.apache.skywalking.oap.server.core.query.type.Log;
  import org.apache.skywalking.oap.server.core.query.type.Logs;
  import org.apache.skywalking.oap.server.core.storage.query.ILogQueryDAO;
  import org.apache.skywalking.oap.server.library.util.CollectionUtils;
  import org.apache.skywalking.oap.server.library.util.StringUtil;
  import org.apache.skywalking.oap.server.storage.plugin.banyandb.BanyanDBStorageClient;
  
  import java.io.IOException;
  import java.util.ArrayList;
  import java.util.List;
  import java.util.Objects;
  import java.util.Set;
  
  import static java.util.Objects.nonNull;
  
  /**
   * {@link org.apache.skywalking.oap.server.core.analysis.manual.log.LogRecord} is a stream
   */
  public class BanyanDBLogQueryDAO extends AbstractBanyanDBDAO implements ILogQueryDAO {
      private static final Set<String> TAGS = ImmutableSet.of(AbstractLogRecord.SERVICE_ID,
              AbstractLogRecord.SERVICE_INSTANCE_ID,
              AbstractLogRecord.ENDPOINT_ID,
              AbstractLogRecord.TRACE_ID,
              AbstractLogRecord.TRACE_SEGMENT_ID,
              AbstractLogRecord.SPAN_ID,
              AbstractLogRecord.TIMESTAMP,
              AbstractLogRecord.CONTENT_TYPE,
              AbstractLogRecord.CONTENT,
              AbstractLogRecord.TAGS,
              AbstractLogRecord.TAGS_RAW_DATA);
  
      public BanyanDBLogQueryDAO(BanyanDBStorageClient client) {
          super(client);
      }
  
      @Override
      public Logs queryLogs(String serviceId, String serviceInstanceId, String endpointId,
                            TraceScopeCondition relatedTrace, Order queryOrder, int from, int limit,
                            Duration duration, List<Tag> tags, List<String> keywordsOfContent,
                            List<String> excludingKeywordsOfContent) throws IOException {
          long startTB = 0;
          long endTB = 0;
          if (nonNull(duration)) {
              startTB = duration.getStartTimeBucketInSec();
              endTB = duration.getEndTimeBucketInSec();
          }
          final QueryBuilder<StreamQuery> query = new QueryBuilder<StreamQuery>() {
              @Override
              public void apply(StreamQuery query) {
                  if (StringUtil.isNotEmpty(serviceId)) {
                      query.and(eq(AbstractLogRecord.SERVICE_ID, serviceId));
                  }
  
                  if (StringUtil.isNotEmpty(serviceInstanceId)) {
                      query.and(eq(AbstractLogRecord.SERVICE_INSTANCE_ID, serviceInstanceId));
                  }
                  if (StringUtil.isNotEmpty(endpointId)) {
                      query.and(eq(AbstractLogRecord.ENDPOINT_ID, endpointId));
                  }
                  if (Objects.nonNull(relatedTrace)) {
                      if (StringUtil.isNotEmpty(relatedTrace.getTraceId())) {
                          query.and(eq(AbstractLogRecord.TRACE_ID, relatedTrace.getTraceId()));
                      }
                      if (StringUtil.isNotEmpty(relatedTrace.getSegmentId())) {
                          query.and(eq(AbstractLogRecord.TRACE_SEGMENT_ID, relatedTrace.getSegmentId()));
                      }
                      if (Objects.nonNull(relatedTrace.getSpanId())) {
                          query.and(eq(AbstractLogRecord.SPAN_ID, (long) relatedTrace.getSpanId()));
                      }
                  }
  
                  if (CollectionUtils.isNotEmpty(tags)) {
                      List<String> tagsConditions = new ArrayList<>(tags.size());
                      for (final Tag tag : tags) {
                          tagsConditions.add(tag.toString());
                      }
                      query.and(having(LogRecord.TAGS, tagsConditions));
                  }
              }
          };
  
          TimestampRange tsRange = null;
          if (startTB > 0 && endTB > 0) {
              tsRange = new TimestampRange(TimeBucket.getTimestamp(startTB), TimeBucket.getTimestamp(endTB));
          }
  
          StreamQueryResponse resp = query(LogRecord.INDEX_NAME, TAGS, tsRange, query);
  
          Logs logs = new Logs();
  
          for (final RowEntity rowEntity : resp.getElements()) {
              Log log = new Log();
              log.setServiceId(rowEntity.getTagValue(AbstractLogRecord.SERVICE_ID));
              log.setServiceInstanceId(
                      rowEntity.getTagValue(AbstractLogRecord.SERVICE_INSTANCE_ID));
              log.setEndpointId(
                      rowEntity.getTagValue(AbstractLogRecord.ENDPOINT_ID));
              if (log.getEndpointId() != null) {
                  log.setEndpointName(
                          IDManager.EndpointID.analysisId(log.getEndpointId()).getEndpointName());
              }
              log.setTraceId(rowEntity.getTagValue(AbstractLogRecord.TRACE_ID));
              log.setTimestamp(((Number) rowEntity.getTagValue(AbstractLogRecord.TIMESTAMP)).longValue());
              log.setContentType(ContentType.instanceOf(
                      ((Number) rowEntity.getTagValue(AbstractLogRecord.CONTENT_TYPE)).intValue()));
              log.setContent(rowEntity.getTagValue(AbstractLogRecord.CONTENT));
              byte[] dataBinary = rowEntity.getTagValue(AbstractLogRecord.TAGS_RAW_DATA);
              if (dataBinary != null && dataBinary.length > 0) {
                  parserDataBinary(dataBinary, log.getTags());
              }
              logs.getLogs().add(log);
          }
          return logs;
      }
  }
  