code: /*
   * Copyright (c) 2022 Airbyte, Inc., all rights reserved.
   */
  
  package io.airbyte.integrations.destination.cassandra;
  
  import com.fasterxml.jackson.databind.JsonNode;
  import io.airbyte.integrations.BaseConnector;
  import io.airbyte.integrations.base.AirbyteMessageConsumer;
  import io.airbyte.integrations.base.Destination;
  import io.airbyte.integrations.base.IntegrationRunner;
  import io.airbyte.protocol.models.AirbyteConnectionStatus;
  import io.airbyte.protocol.models.AirbyteMessage;
  import io.airbyte.protocol.models.ConfiguredAirbyteCatalog;
  import java.util.UUID;
  import java.util.function.Consumer;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  class CassandraDestination extends BaseConnector implements Destination {
  
    private static final Logger LOGGER = LoggerFactory.getLogger(CassandraDestination.class);
  
    public static void main(String[] args) throws Exception {
      new IntegrationRunner(new CassandraDestination()).run(args);
    }
  
    @Override
    public AirbyteConnectionStatus check(final JsonNode config) {
      var cassandraConfig = new CassandraConfig(config);
      // add random uuid to avoid conflicts with existing tables.
      String tableName = "table_" + UUID.randomUUID().toString().replace("-", "");
      CassandraCqlProvider cassandraCqlProvider = null;
      try {
        cassandraCqlProvider = new CassandraCqlProvider(cassandraConfig);
        // check connection and write permissions
        cassandraCqlProvider.createKeySpaceIfNotExists(cassandraConfig.getKeyspace(),
            cassandraConfig.getReplication());
        cassandraCqlProvider.createTableIfNotExists(cassandraConfig.getKeyspace(), tableName);
        cassandraCqlProvider.insert(cassandraConfig.getKeyspace(), tableName, "{}");
        return new AirbyteConnectionStatus().withStatus(AirbyteConnectionStatus.Status.SUCCEEDED);
      } catch (Exception e) {
        LOGGER.error("Can't establish Cassandra connection with reason: ", e);
        return new AirbyteConnectionStatus().withStatus(AirbyteConnectionStatus.Status.FAILED);
      } finally {
        if (cassandraCqlProvider != null) {
          try {
            cassandraCqlProvider.dropTableIfExists(cassandraConfig.getKeyspace(), tableName);
          } catch (Exception e) {
            LOGGER.error("Error while deleting temp table {} with reason: ", tableName, e);
          }
          cassandraCqlProvider.close();
        }
      }
    }
  
    @Override
    public AirbyteMessageConsumer getConsumer(final JsonNode config,
                                              final ConfiguredAirbyteCatalog configuredCatalog,
                                              final Consumer<AirbyteMessage> outputRecordCollector) {
      final CassandraConfig cassandraConfig = new CassandraConfig(config);
      final CassandraCqlProvider cassandraCqlProvider = new CassandraCqlProvider(cassandraConfig);
      return new CassandraMessageConsumer(cassandraConfig, configuredCatalog, cassandraCqlProvider, outputRecordCollector);
    }
  
  }
  