code: /*
   * Copyright (c) 2022 Airbyte, Inc., all rights reserved.
   */
  
  package io.airbyte.integrations.destination.postgres;
  
  import static io.airbyte.integrations.util.PostgresSslConnectionUtils.DISABLE;
  import static io.airbyte.integrations.util.PostgresSslConnectionUtils.PARAM_MODE;
  import static io.airbyte.integrations.util.PostgresSslConnectionUtils.PARAM_SSL;
  import static io.airbyte.integrations.util.PostgresSslConnectionUtils.PARAM_SSL_MODE;
  import static io.airbyte.integrations.util.PostgresSslConnectionUtils.obtainConnectionOptions;
  
  import com.fasterxml.jackson.databind.JsonNode;
  import com.google.common.collect.ImmutableMap;
  import io.airbyte.commons.json.Jsons;
  import io.airbyte.db.factory.DatabaseDriver;
  import io.airbyte.db.jdbc.JdbcUtils;
  import io.airbyte.integrations.base.Destination;
  import io.airbyte.integrations.base.IntegrationRunner;
  import io.airbyte.integrations.base.ssh.SshWrappedDestination;
  import io.airbyte.integrations.destination.jdbc.AbstractJdbcDestination;
  import java.util.HashMap;
  import java.util.Map;
  import java.util.Optional;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  public class PostgresDestination extends AbstractJdbcDestination implements Destination {
  
    private static final Logger LOGGER = LoggerFactory.getLogger(PostgresDestination.class);
  
    public static final String DRIVER_CLASS = DatabaseDriver.POSTGRESQL.getDriverClassName();
  
    public static Destination sshWrappedDestination() {
      return new SshWrappedDestination(new PostgresDestination(), JdbcUtils.HOST_LIST_KEY, JdbcUtils.PORT_LIST_KEY);
    }
  
    public PostgresDestination() {
      super(DRIVER_CLASS, new PostgresSQLNameTransformer(), new PostgresSqlOperations());
    }
  
    @Override
    protected Map<String, String> getDefaultConnectionProperties(final JsonNode config) {
      final Map<String, String> additionalParameters = new HashMap<>();
      if (!config.has(PARAM_SSL) || config.get(PARAM_SSL).asBoolean()) {
        if (config.has(PARAM_SSL_MODE)) {
          if (DISABLE.equals(config.get(PARAM_SSL_MODE).get(PARAM_MODE).asText())) {
            additionalParameters.put("sslmode", DISABLE);
          } else {
            additionalParameters.putAll(obtainConnectionOptions(config.get(PARAM_SSL_MODE)));
          }
        } else {
          additionalParameters.put(JdbcUtils.SSL_KEY, "true");
          additionalParameters.put("sslmode", "require");
        }
      }
      return additionalParameters;
    }
  
    @Override
    public JsonNode toJdbcConfig(final JsonNode config) {
      final String schema = Optional.ofNullable(config.get(JdbcUtils.SCHEMA_KEY)).map(JsonNode::asText).orElse("public");
  
      final String jdbcUrl = String.format("jdbc:postgresql://%s:%s/%s?",
          config.get(JdbcUtils.HOST_KEY).asText(),
          config.get(JdbcUtils.PORT_KEY).asText(),
          config.get(JdbcUtils.DATABASE_KEY).asText());
  
      final ImmutableMap.Builder<Object, Object> configBuilder = ImmutableMap.builder()
          .put(JdbcUtils.USERNAME_KEY, config.get(JdbcUtils.USERNAME_KEY).asText())
          .put(JdbcUtils.JDBC_URL_KEY, jdbcUrl)
          .put(JdbcUtils.SCHEMA_KEY, schema);
  
      if (config.has(JdbcUtils.PASSWORD_KEY)) {
        configBuilder.put(JdbcUtils.PASSWORD_KEY, config.get(JdbcUtils.PASSWORD_KEY).asText());
      }
  
      if (config.has(JdbcUtils.JDBC_URL_PARAMS_KEY)) {
        configBuilder.put(JdbcUtils.JDBC_URL_PARAMS_KEY, config.get(JdbcUtils.JDBC_URL_PARAMS_KEY).asText());
      }
  
      return Jsons.jsonNode(configBuilder.build());
    }
  
    public static void main(final String[] args) throws Exception {
      final Destination destination = PostgresDestination.sshWrappedDestination();
      LOGGER.info("starting destination: {}", PostgresDestination.class);
      new IntegrationRunner(destination).run(args);
      LOGGER.info("completed destination: {}", PostgresDestination.class);
    }
  
  }
  