content: /*
   * 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.camel.kafkaconnector.sql.client;
  
  import java.sql.Connection;
  import java.sql.ResultSet;
  import java.sql.SQLException;
  import java.util.function.Consumer;
  
  import org.postgresql.ds.PGSimpleDataSource;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  public class DatabaseClient {
      private static final Logger LOG = LoggerFactory.getLogger(DatabaseClient.class);
      private PGSimpleDataSource datasource;
      private final Connection connection;
  
      public DatabaseClient(String url) throws SQLException {
          LOG.info("Opening a new database connection using the URL {}", url);
  
          datasource = new PGSimpleDataSource();
          datasource.setURL(url);
          datasource.setUser("ckc");
          datasource.setPassword("ckcDevel123");
          connection = datasource.getConnection();
      }
  
      public void runQuery(String query, Consumer<ResultSet> consumer) throws SQLException {
          try (ResultSet rs = connection.prepareStatement(query).executeQuery()) {
  
              while (rs.next()) {
                  consumer.accept(rs);
              }
          }
      }
  
      public int count(String table) throws SQLException {
          String query = String.format("select count(*) as count from %s", table);
  
          try (ResultSet rs = connection.prepareStatement(query).executeQuery()) {
              if (rs.next()) {
                  return rs.getInt("count");
              }
          }
  
          return 0;
      }
  
      public boolean hasAtLeastRecords(String table, int expected) throws SQLException {
          int count = count(table);
  
          return count >= expected;
      }
  }
  