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);
}
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}'");
}
}
}
}