private void callOperation()

in flink/flink1.15-shims/src/main/java/org/apache/zeppelin/flink/Flink115SqlInterpreter.java [278:359]
74 lines of code
37 McCabe index (conditional complexity)

  private void callOperation(String sql, Operation operation, InterpreterContext context) throws IOException {
    if (operation instanceof HelpOperation) {
      // HELP
      callHelp(context);
    } else if (operation instanceof SetOperation) {
      // SET
      callSet((SetOperation) operation, context);
    } else if (operation instanceof ModifyOperation) {
      // INSERT INTO/OVERWRITE
      callInsert((ModifyOperation) operation, context);
    } else if (operation instanceof QueryOperation) {
      // SELECT
      callSelect(sql, (QueryOperation) operation, context);
    } else if (operation instanceof ExplainOperation) {
      // EXPLAIN
      callExplain((ExplainOperation) operation, context);
    } else if (operation instanceof BeginStatementSetOperation) {
      // BEGIN STATEMENT SET
      callBeginStatementSet(context);
    } else if (operation instanceof EndStatementSetOperation) {
      // END
      callEndStatementSet(context);
    } else if (operation instanceof ShowCreateTableOperation) {
      // SHOW CREATE TABLE
      callShowCreateTable((ShowCreateTableOperation) operation, context);
    } else if (operation instanceof ShowCatalogsOperation) {
      callShowCatalogs(context);
    } else if (operation instanceof ShowCurrentCatalogOperation) {
      callShowCurrentCatalog(context);
    } else if (operation instanceof UseCatalogOperation) {
      callUseCatalog(((UseCatalogOperation) operation).getCatalogName(), context);
    } else if (operation instanceof CreateCatalogOperation) {
      callDDL(sql, context, "Catalog has been created.");
    } else if (operation instanceof DropCatalogOperation) {
      callDDL(sql, context, "Catalog has been dropped.");
    } else if (operation instanceof UseDatabaseOperation) {
      UseDatabaseOperation useDBOperation = (UseDatabaseOperation) operation;
      callUseDatabase(useDBOperation.getDatabaseName(), context);
    } else if (operation instanceof CreateDatabaseOperation) {
      callDDL(sql, context, "Database has been created.");
    } else if (operation instanceof DropDatabaseOperation) {
      callDDL(sql, context, "Database has been removed.");
    } else if (operation instanceof AlterDatabaseOperation) {
      callDDL(sql, context, "Alter database succeeded!");
    } else if (operation instanceof ShowDatabasesOperation) {
      callShowDatabases(context);
    } else if (operation instanceof ShowCurrentDatabaseOperation) {
      callShowCurrentDatabase(context);
    } else if (operation instanceof CreateTableOperation || operation instanceof CreateTableASOperation) {
      callDDL(sql, context, "Table has been created.");
    } else if (operation instanceof AlterTableOperation) {
      callDDL(sql, context, "Alter table succeeded!");
    } else if (operation instanceof DropTableOperation) {
      callDDL(sql, context, "Table has been dropped.");
    } else if (operation instanceof DescribeTableOperation) {
      DescribeTableOperation describeTableOperation = (DescribeTableOperation) operation;
      callDescribe(describeTableOperation.getSqlIdentifier().getObjectName(), context);
    } else if (operation instanceof ShowTablesOperation) {
      callShowTables(context);
    } else if (operation instanceof CreateViewOperation) {
      callDDL(sql, context, "View has been created.");
    } else if (operation instanceof DropViewOperation) {
      callDDL(sql, context, "View has been dropped.");
    } else if (operation instanceof AlterViewOperation) {
      callDDL(sql, context, "Alter view succeeded!");
    } else if (operation instanceof CreateCatalogFunctionOperation || operation instanceof CreateTempSystemFunctionOperation) {
      callDDL(sql, context, "Function has been created.");
    } else if (operation instanceof DropCatalogFunctionOperation || operation instanceof DropTempSystemFunctionOperation) {
      callDDL(sql, context, "Function has been removed.");
    } else if (operation instanceof AlterCatalogFunctionOperation) {
      callDDL(sql, context, "Alter function succeeded!");
    } else if (operation instanceof ShowFunctionsOperation) {
      callShowFunctions(context);
    } else if (operation instanceof ShowModulesOperation) {
      callShowModules(context);
    } else if (operation instanceof ShowPartitionsOperation) {
      ShowPartitionsOperation showPartitionsOperation = (ShowPartitionsOperation) operation;
      callShowPartitions(showPartitionsOperation.asSummaryString(), context);
    } else {
      throw new IOException(operation.getClass().getName() + " is not supported");
    }
  }