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.jdbc.common.dao;
  
  import lombok.RequiredArgsConstructor;
  import lombok.SneakyThrows;
  import org.apache.skywalking.oap.server.core.analysis.manual.spanattach.SpanAttachedEventRecord;
  import org.apache.skywalking.oap.server.core.analysis.manual.spanattach.SpanAttachedEventTraceType;
  import org.apache.skywalking.oap.server.core.storage.query.ISpanAttachedEventQueryDAO;
  import org.apache.skywalking.oap.server.library.client.jdbc.hikaricp.JDBCClient;
  import org.apache.skywalking.oap.server.library.util.StringUtil;
  import org.apache.skywalking.oap.server.storage.plugin.jdbc.common.JDBCTableInstaller;
  import org.apache.skywalking.oap.server.storage.plugin.jdbc.common.SQLAndParameters;
  import org.apache.skywalking.oap.server.storage.plugin.jdbc.common.TableHelper;
  
  import java.util.ArrayList;
  import java.util.Base64;
  import java.util.List;
  
  import static java.util.Comparator.comparing;
  import static java.util.stream.Collectors.joining;
  import static java.util.stream.Collectors.toList;
  
  @RequiredArgsConstructor
  public class JDBCSpanAttachedEventQueryDAO implements ISpanAttachedEventQueryDAO {
      private final JDBCClient jdbcClient;
      private final TableHelper tableHelper;
  
      @Override
      @SneakyThrows
      public List<SpanAttachedEventRecord> querySpanAttachedEvents(SpanAttachedEventTraceType type, List<String> traceIds) {
          final var tables = tableHelper.getTablesWithinTTL(SpanAttachedEventRecord.INDEX_NAME);
          final var results = new ArrayList<SpanAttachedEventRecord>();
  
          for (String table : tables) {
              final var sqlAndParameters = buildSQL(type, traceIds, table);
  
              jdbcClient.executeQuery(
                  sqlAndParameters.sql(),
                  resultSet -> {
                      while (resultSet.next()) {
                          SpanAttachedEventRecord record = new SpanAttachedEventRecord();
                          record.setStartTimeSecond(resultSet.getLong(SpanAttachedEventRecord.START_TIME_SECOND));
                          record.setStartTimeNanos(resultSet.getInt(SpanAttachedEventRecord.START_TIME_NANOS));
                          record.setEvent(resultSet.getString(SpanAttachedEventRecord.EVENT));
                          record.setEndTimeSecond(resultSet.getLong(SpanAttachedEventRecord.END_TIME_SECOND));
                          record.setEndTimeNanos(resultSet.getInt(SpanAttachedEventRecord.END_TIME_NANOS));
                          record.setTraceRefType(resultSet.getInt(SpanAttachedEventRecord.TRACE_REF_TYPE));
                          record.setRelatedTraceId(resultSet.getString(SpanAttachedEventRecord.RELATED_TRACE_ID));
                          record.setTraceSegmentId(resultSet.getString(SpanAttachedEventRecord.TRACE_SEGMENT_ID));
                          record.setTraceSpanId(resultSet.getString(SpanAttachedEventRecord.TRACE_SPAN_ID));
                          String dataBinaryBase64 = resultSet.getString(SpanAttachedEventRecord.DATA_BINARY);
                          if (StringUtil.isNotEmpty(dataBinaryBase64)) {
                              record.setDataBinary(Base64.getDecoder().decode(dataBinaryBase64));
                          }
                          results.add(record);
                      }
  
                      return null;
                  },
                  sqlAndParameters.parameters());
          }
          return results
              .stream()
              .sorted(comparing(SpanAttachedEventRecord::getStartTimeSecond).thenComparing(SpanAttachedEventRecord::getStartTimeNanos))
              .collect(toList());
      }
  
      private static SQLAndParameters buildSQL(SpanAttachedEventTraceType type, List<String> traceIds, String table) {
          final var sql = new StringBuilder("select * from " + table + " where ");
          final var parameters = new ArrayList<>(traceIds.size() + 1);
  
          sql.append(JDBCTableInstaller.TABLE_COLUMN).append(" = ? ");
          parameters.add(SpanAttachedEventRecord.INDEX_NAME);
  
          sql.append(" and ").append(SpanAttachedEventRecord.RELATED_TRACE_ID).append(" in ");
          sql.append(
              traceIds
                  .stream()
                  .map(it -> "?")
                  .collect(joining(",", "(", ")"))
          );
          parameters.addAll(traceIds);
  
          sql.append(" and ").append(SpanAttachedEventRecord.TRACE_REF_TYPE).append(" = ?");
          parameters.add(type.value());
  
          sql.append(" order by ").append(SpanAttachedEventRecord.START_TIME_SECOND)
             .append(",").append(SpanAttachedEventRecord.START_TIME_NANOS).append(" ASC ");
  
          return new SQLAndParameters(sql.toString(), parameters);
      }
  }
  