public Request<ModifyDBInstanceRequest> marshall(
      ModifyDBInstanceRequest modifyDBInstanceRequest) {

    if (modifyDBInstanceRequest == null) {
      throw new AmazonClientException("Invalid argument passed to marshall(...)");
    }

    Request<ModifyDBInstanceRequest> request =
        new DefaultRequest<ModifyDBInstanceRequest>(modifyDBInstanceRequest, "AmazonRDS");
    request.addParameter("Action", "ModifyDBInstance");
    request.addParameter("Version", "2011-04-01");

    if (modifyDBInstanceRequest.getDBInstanceIdentifier() != null) {
      request.addParameter(
          "DBInstanceIdentifier",
          StringUtils.fromString(modifyDBInstanceRequest.getDBInstanceIdentifier()));
    }
    if (modifyDBInstanceRequest.getAllocatedStorage() != null) {
      request.addParameter(
          "AllocatedStorage",
          StringUtils.fromInteger(modifyDBInstanceRequest.getAllocatedStorage()));
    }
    if (modifyDBInstanceRequest.getDBInstanceClass() != null) {
      request.addParameter(
          "DBInstanceClass", StringUtils.fromString(modifyDBInstanceRequest.getDBInstanceClass()));
    }

    java.util.List<String> dBSecurityGroupsList = modifyDBInstanceRequest.getDBSecurityGroups();
    int dBSecurityGroupsListIndex = 1;

    for (String dBSecurityGroupsListValue : dBSecurityGroupsList) {
      if (dBSecurityGroupsListValue != null) {
        request.addParameter(
            "DBSecurityGroups.DBSecurityGroupName." + dBSecurityGroupsListIndex,
            StringUtils.fromString(dBSecurityGroupsListValue));
      }

      dBSecurityGroupsListIndex++;
    }
    if (modifyDBInstanceRequest.isApplyImmediately() != null) {
      request.addParameter(
          "ApplyImmediately",
          StringUtils.fromBoolean(modifyDBInstanceRequest.isApplyImmediately()));
    }
    if (modifyDBInstanceRequest.getMasterUserPassword() != null) {
      request.addParameter(
          "MasterUserPassword",
          StringUtils.fromString(modifyDBInstanceRequest.getMasterUserPassword()));
    }
    if (modifyDBInstanceRequest.getDBParameterGroupName() != null) {
      request.addParameter(
          "DBParameterGroupName",
          StringUtils.fromString(modifyDBInstanceRequest.getDBParameterGroupName()));
    }
    if (modifyDBInstanceRequest.getBackupRetentionPeriod() != null) {
      request.addParameter(
          "BackupRetentionPeriod",
          StringUtils.fromInteger(modifyDBInstanceRequest.getBackupRetentionPeriod()));
    }
    if (modifyDBInstanceRequest.getPreferredBackupWindow() != null) {
      request.addParameter(
          "PreferredBackupWindow",
          StringUtils.fromString(modifyDBInstanceRequest.getPreferredBackupWindow()));
    }
    if (modifyDBInstanceRequest.getPreferredMaintenanceWindow() != null) {
      request.addParameter(
          "PreferredMaintenanceWindow",
          StringUtils.fromString(modifyDBInstanceRequest.getPreferredMaintenanceWindow()));
    }
    if (modifyDBInstanceRequest.isMultiAZ() != null) {
      request.addParameter("MultiAZ", StringUtils.fromBoolean(modifyDBInstanceRequest.isMultiAZ()));
    }
    if (modifyDBInstanceRequest.getEngineVersion() != null) {
      request.addParameter(
          "EngineVersion", StringUtils.fromString(modifyDBInstanceRequest.getEngineVersion()));
    }
    if (modifyDBInstanceRequest.isAllowMajorVersionUpgrade() != null) {
      request.addParameter(
          "AllowMajorVersionUpgrade",
          StringUtils.fromBoolean(modifyDBInstanceRequest.isAllowMajorVersionUpgrade()));
    }
    if (modifyDBInstanceRequest.isAutoMinorVersionUpgrade() != null) {
      request.addParameter(
          "AutoMinorVersionUpgrade",
          StringUtils.fromBoolean(modifyDBInstanceRequest.isAutoMinorVersionUpgrade()));
    }

    return request;
  }
  public Request<ModifyDBInstanceRequest> marshall(
      ModifyDBInstanceRequest modifyDBInstanceRequest) {

    if (modifyDBInstanceRequest == null) {
      throw new AmazonClientException("Invalid argument passed to marshall(...)");
    }

    Request<ModifyDBInstanceRequest> request =
        new DefaultRequest<ModifyDBInstanceRequest>(modifyDBInstanceRequest, "AmazonRDS");
    request.addParameter("Action", "ModifyDBInstance");
    request.addParameter("Version", "2014-10-31");
    request.setHttpMethod(HttpMethodName.POST);

    if (modifyDBInstanceRequest.getDBInstanceIdentifier() != null) {
      request.addParameter(
          "DBInstanceIdentifier",
          StringUtils.fromString(modifyDBInstanceRequest.getDBInstanceIdentifier()));
    }

    if (modifyDBInstanceRequest.getAllocatedStorage() != null) {
      request.addParameter(
          "AllocatedStorage",
          StringUtils.fromInteger(modifyDBInstanceRequest.getAllocatedStorage()));
    }

    if (modifyDBInstanceRequest.getDBInstanceClass() != null) {
      request.addParameter(
          "DBInstanceClass", StringUtils.fromString(modifyDBInstanceRequest.getDBInstanceClass()));
    }

    if (modifyDBInstanceRequest.getDBSubnetGroupName() != null) {
      request.addParameter(
          "DBSubnetGroupName",
          StringUtils.fromString(modifyDBInstanceRequest.getDBSubnetGroupName()));
    }

    com.amazonaws.internal.SdkInternalList<String> dBSecurityGroupsList =
        (com.amazonaws.internal.SdkInternalList<String>)
            modifyDBInstanceRequest.getDBSecurityGroups();
    if (!dBSecurityGroupsList.isEmpty() || !dBSecurityGroupsList.isAutoConstruct()) {
      int dBSecurityGroupsListIndex = 1;

      for (String dBSecurityGroupsListValue : dBSecurityGroupsList) {
        if (dBSecurityGroupsListValue != null) {
          request.addParameter(
              "DBSecurityGroups.DBSecurityGroupName." + dBSecurityGroupsListIndex,
              StringUtils.fromString(dBSecurityGroupsListValue));
        }
        dBSecurityGroupsListIndex++;
      }
    }

    com.amazonaws.internal.SdkInternalList<String> vpcSecurityGroupIdsList =
        (com.amazonaws.internal.SdkInternalList<String>)
            modifyDBInstanceRequest.getVpcSecurityGroupIds();
    if (!vpcSecurityGroupIdsList.isEmpty() || !vpcSecurityGroupIdsList.isAutoConstruct()) {
      int vpcSecurityGroupIdsListIndex = 1;

      for (String vpcSecurityGroupIdsListValue : vpcSecurityGroupIdsList) {
        if (vpcSecurityGroupIdsListValue != null) {
          request.addParameter(
              "VpcSecurityGroupIds.VpcSecurityGroupId." + vpcSecurityGroupIdsListIndex,
              StringUtils.fromString(vpcSecurityGroupIdsListValue));
        }
        vpcSecurityGroupIdsListIndex++;
      }
    }

    if (modifyDBInstanceRequest.getApplyImmediately() != null) {
      request.addParameter(
          "ApplyImmediately",
          StringUtils.fromBoolean(modifyDBInstanceRequest.getApplyImmediately()));
    }

    if (modifyDBInstanceRequest.getMasterUserPassword() != null) {
      request.addParameter(
          "MasterUserPassword",
          StringUtils.fromString(modifyDBInstanceRequest.getMasterUserPassword()));
    }

    if (modifyDBInstanceRequest.getDBParameterGroupName() != null) {
      request.addParameter(
          "DBParameterGroupName",
          StringUtils.fromString(modifyDBInstanceRequest.getDBParameterGroupName()));
    }

    if (modifyDBInstanceRequest.getBackupRetentionPeriod() != null) {
      request.addParameter(
          "BackupRetentionPeriod",
          StringUtils.fromInteger(modifyDBInstanceRequest.getBackupRetentionPeriod()));
    }

    if (modifyDBInstanceRequest.getPreferredBackupWindow() != null) {
      request.addParameter(
          "PreferredBackupWindow",
          StringUtils.fromString(modifyDBInstanceRequest.getPreferredBackupWindow()));
    }

    if (modifyDBInstanceRequest.getPreferredMaintenanceWindow() != null) {
      request.addParameter(
          "PreferredMaintenanceWindow",
          StringUtils.fromString(modifyDBInstanceRequest.getPreferredMaintenanceWindow()));
    }

    if (modifyDBInstanceRequest.getMultiAZ() != null) {
      request.addParameter(
          "MultiAZ", StringUtils.fromBoolean(modifyDBInstanceRequest.getMultiAZ()));
    }

    if (modifyDBInstanceRequest.getEngineVersion() != null) {
      request.addParameter(
          "EngineVersion", StringUtils.fromString(modifyDBInstanceRequest.getEngineVersion()));
    }

    if (modifyDBInstanceRequest.getAllowMajorVersionUpgrade() != null) {
      request.addParameter(
          "AllowMajorVersionUpgrade",
          StringUtils.fromBoolean(modifyDBInstanceRequest.getAllowMajorVersionUpgrade()));
    }

    if (modifyDBInstanceRequest.getAutoMinorVersionUpgrade() != null) {
      request.addParameter(
          "AutoMinorVersionUpgrade",
          StringUtils.fromBoolean(modifyDBInstanceRequest.getAutoMinorVersionUpgrade()));
    }

    if (modifyDBInstanceRequest.getLicenseModel() != null) {
      request.addParameter(
          "LicenseModel", StringUtils.fromString(modifyDBInstanceRequest.getLicenseModel()));
    }

    if (modifyDBInstanceRequest.getIops() != null) {
      request.addParameter("Iops", StringUtils.fromInteger(modifyDBInstanceRequest.getIops()));
    }

    if (modifyDBInstanceRequest.getOptionGroupName() != null) {
      request.addParameter(
          "OptionGroupName", StringUtils.fromString(modifyDBInstanceRequest.getOptionGroupName()));
    }

    if (modifyDBInstanceRequest.getNewDBInstanceIdentifier() != null) {
      request.addParameter(
          "NewDBInstanceIdentifier",
          StringUtils.fromString(modifyDBInstanceRequest.getNewDBInstanceIdentifier()));
    }

    if (modifyDBInstanceRequest.getStorageType() != null) {
      request.addParameter(
          "StorageType", StringUtils.fromString(modifyDBInstanceRequest.getStorageType()));
    }

    if (modifyDBInstanceRequest.getTdeCredentialArn() != null) {
      request.addParameter(
          "TdeCredentialArn",
          StringUtils.fromString(modifyDBInstanceRequest.getTdeCredentialArn()));
    }

    if (modifyDBInstanceRequest.getTdeCredentialPassword() != null) {
      request.addParameter(
          "TdeCredentialPassword",
          StringUtils.fromString(modifyDBInstanceRequest.getTdeCredentialPassword()));
    }

    if (modifyDBInstanceRequest.getCACertificateIdentifier() != null) {
      request.addParameter(
          "CACertificateIdentifier",
          StringUtils.fromString(modifyDBInstanceRequest.getCACertificateIdentifier()));
    }

    if (modifyDBInstanceRequest.getDomain() != null) {
      request.addParameter("Domain", StringUtils.fromString(modifyDBInstanceRequest.getDomain()));
    }

    if (modifyDBInstanceRequest.getCopyTagsToSnapshot() != null) {
      request.addParameter(
          "CopyTagsToSnapshot",
          StringUtils.fromBoolean(modifyDBInstanceRequest.getCopyTagsToSnapshot()));
    }

    if (modifyDBInstanceRequest.getMonitoringInterval() != null) {
      request.addParameter(
          "MonitoringInterval",
          StringUtils.fromInteger(modifyDBInstanceRequest.getMonitoringInterval()));
    }

    if (modifyDBInstanceRequest.getDBPortNumber() != null) {
      request.addParameter(
          "DBPortNumber", StringUtils.fromInteger(modifyDBInstanceRequest.getDBPortNumber()));
    }

    if (modifyDBInstanceRequest.getPubliclyAccessible() != null) {
      request.addParameter(
          "PubliclyAccessible",
          StringUtils.fromBoolean(modifyDBInstanceRequest.getPubliclyAccessible()));
    }

    if (modifyDBInstanceRequest.getMonitoringRoleArn() != null) {
      request.addParameter(
          "MonitoringRoleArn",
          StringUtils.fromString(modifyDBInstanceRequest.getMonitoringRoleArn()));
    }

    if (modifyDBInstanceRequest.getDomainIAMRoleName() != null) {
      request.addParameter(
          "DomainIAMRoleName",
          StringUtils.fromString(modifyDBInstanceRequest.getDomainIAMRoleName()));
    }

    if (modifyDBInstanceRequest.getPromotionTier() != null) {
      request.addParameter(
          "PromotionTier", StringUtils.fromInteger(modifyDBInstanceRequest.getPromotionTier()));
    }

    return request;
  }