code: /*
   * Copyright © 2014-2017 EntIT Software LLC, a Micro Focus company (L.P.)
   *
   * Licensed 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 io.cloudslang.engine.queue.services;
  
  
  import org.apache.logging.log4j.LogManager;
  import org.apache.logging.log4j.Logger;
  import org.springframework.jdbc.core.JdbcTemplate;
  import org.springframework.jdbc.datasource.DataSourceUtils;
  
  import javax.sql.DataSource;
  
  import java.sql.SQLException;
  import java.sql.Statement;
  
  public class StatementAwareJdbcTemplateWrapper extends JdbcTemplate {
      private static final Logger log = LogManager.getLogger(StatementAwareJdbcTemplateWrapper.class);
  
      private final String name;
      private final ThreadLocal<Integer> statementBatchSizeThreadLocal;
  
      public StatementAwareJdbcTemplateWrapper(DataSource dataSource, String name) {
          super(dataSource);
          this.name = name;
          this.statementBatchSizeThreadLocal = new ThreadLocal<>();
      }
  
      @Override
      protected void applyStatementSettings(Statement stmt) throws SQLException {
          Integer batchSize = this.statementBatchSizeThreadLocal.get();
          if ((batchSize != null) && (batchSize > 0)) {
              stmt.setMaxRows(batchSize);
              stmt.setFetchSize(batchSize);
              if (log.isDebugEnabled()) {
                  log.debug("For name " + name + " identified  batch size " + batchSize + " for statement '" + stmt.toString() + "'");
              }
          }
          DataSourceUtils.applyTimeout(stmt, this.getDataSource(), this.getQueryTimeout());
      }
  
      public void setStatementBatchSize(int batchSize) {
          this.statementBatchSizeThreadLocal.set(batchSize);
      }
  
      public void clearStatementBatchSize() {
          this.statementBatchSizeThreadLocal.remove();
      }
  
  }
  