internal static CommandBase FromCode(SyntaxElement rootElement)
        {
            var tableNameReference = rootElement.GetUniqueDescendant <NameReference>(
                "Table Name",
                n => n.NameInParent == "TableName");
            var mappingNameExpression = rootElement.GetUniqueDescendant <LiteralExpression>(
                "Mapping Name",
                n => n.NameInParent == "MappingName");
            var mappingKindToken = rootElement.GetUniqueDescendant <SyntaxToken>(
                "Mapping Kind",
                n => n.NameInParent == "MappingKind");
            var command = new DropMappingCommand(
                new EntityName(tableNameReference.SimpleName),
                mappingKindToken.Text,
                QuotedText.FromLiteral(mappingNameExpression));

            return(command);
        }
示例#2
0
        private static CommandBase?CreateCommand(
            string script,
            KustoCode code,
            bool ignoreUnknownCommands)
        {
            var commandBlock = code.Syntax as CommandBlock;

            if (commandBlock == null)
            {
                throw new DeltaException("Script isn't a command");
            }

            var unknownCommand = commandBlock.GetDescendants <UnknownCommand>().FirstOrDefault();

            if (unknownCommand != null)
            {
                return(RerouteUnknownCommand(script, unknownCommand, ignoreUnknownCommands));
            }
            else
            {
                var customCommand = commandBlock.GetUniqueDescendant <CustomCommand>("custom command");

                switch (customCommand.CommandKind)
                {
                case "CreateFunction":
                case "CreateOrAlterFunction":
                    return(CreateFunctionCommand.FromCode(commandBlock));

                case "DropFunction":
                    return(DropFunctionCommand.FromCode(commandBlock));

                case "DropFunctions":
                    return(DropFunctionsCommand.FromCode(commandBlock));

                case "CreateTable":
                    return(CreateTableCommand.FromCode(commandBlock));

                case "CreateMergeTable":
                    //  We need to do this since the parsing is quite different with the with-node
                    //  between a .create and .create-merge (for unknown reasons)
                    return(ParseAndCreateCommand(
                               ReplaceFirstOccurence(script, "create-merge", "create"),
                               ignoreUnknownCommands));

                case "AlterMergeTable":
                    return(ParseAndCreateCommand(
                               ReplaceFirstOccurence(script, "alter-merge", "create"),
                               ignoreUnknownCommands));

                case "CreateTables":
                    return(CreateTablesCommand.FromCode(commandBlock));

                case "DropTable":
                    return(DropTableCommand.FromCode(commandBlock));

                case "DropTables":
                    return(DropTablesCommand.FromCode(commandBlock));

                case "AlterColumnType":
                    return(AlterColumnTypeCommand.FromCode(commandBlock));

                case "AlterMergeTableColumnDocStrings":
                    return(AlterMergeTableColumnDocStringsCommand.FromCode(commandBlock));

                case "DropTableColumns":
                    return(DropTableColumnsCommand.FromCode(commandBlock));

                case "CreateTableIngestionMapping":
                    return(CreateMappingCommand.FromCode(commandBlock));

                case "DropTableIngestionMapping":
                    return(DropMappingCommand.FromCode(commandBlock));

                case "AlterTablePolicyUpdate":
                    return(AlterUpdatePolicyCommand.FromCode(commandBlock));

                    #region Policies
                case "AlterTablePolicyAutoDelete":
                    return(AlterAutoDeletePolicyCommand.FromCode(commandBlock));

                case "DeleteTablePolicyAutoDelete":
                    return(DeleteAutoDeletePolicyCommand.FromCode(commandBlock));

                case "AlterDatabasePolicyCaching":
                case "AlterTablePolicyCaching":
                    var partitioning = commandBlock.GetDescendants <SyntaxElement>(s => s.Kind == SyntaxKind.PartitioningKeyword).Count();

                    if (partitioning == 1)
                    {
                        if (ignoreUnknownCommands)
                        {
                            return(null);
                        }
                        else
                        {
                            throw new DeltaException(
                                      $"Can't handle CommandKind 'AlterTablePolicyPartitioning'");
                        }
                    }
                    else
                    {
                        return(AlterCachingPolicyCommand.FromCode(commandBlock));
                    }

                case "DeleteDatabasePolicyCaching":
                case "DeleteTablePolicyCaching":
                    return(DeleteCachingPolicyCommand.FromCode(commandBlock));

                case "AlterDatabasePolicyIngestionBatching":
                case "AlterTablePolicyIngestionBatching":
                    return(AlterIngestionBatchingPolicyCommand.FromCode(commandBlock));

                case "DeleteDatabasePolicyIngestionBatching":
                case "DeleteTablePolicyIngestionBatching":
                    return(DeleteIngestionBatchingPolicyCommand.FromCode(commandBlock));

                case "AlterDatabasePolicyMerge":
                case "AlterTablePolicyMerge":
                    return(AlterMergePolicyCommand.FromCode(commandBlock));

                case "DeleteDatabasePolicyMerge":
                case "DeleteTablePolicyMerge":
                    return(DeleteMergePolicyCommand.FromCode(commandBlock));

                case "AlterDatabasePolicyRetention":
                case "AlterTablePolicyRetention":
                    return(AlterRetentionPolicyCommand.FromCode(commandBlock));

                case "AlterTablesPolicyRetention":
                    return(AlterTablesRetentionPolicyCommand.FromCode(commandBlock));

                case "DeleteDatabasePolicyRetention":
                case "DeleteTablePolicyRetention":
                    return(DeleteRetentionPolicyCommand.FromCode(commandBlock));

                case "AlterDatabasePolicySharding":
                case "AlterTablePolicySharding":
                    return(AlterShardingPolicyCommand.FromCode(commandBlock));

                case "DeleteDatabasePolicySharding":
                case "DeleteTablePolicySharding":
                    return(DeleteShardingPolicyCommand.FromCode(commandBlock));

                    #endregion

                default:
                    if (ignoreUnknownCommands)
                    {
                        return(null);
                    }
                    else
                    {
                        throw new DeltaException(
                                  $"Can't handle CommandKind '{customCommand.CommandKind}'");
                    }
                }
            }
        }