FileSystemOperationsExtensions.MsConcatAsync Method
Definition
Important
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Concatenates the list of source files into the destination file, deleting all source files upon success. This method accepts more source file paths than the Concat method. This method and the parameters it accepts are subject to change for usability in an upcoming version.
public static System.Threading.Tasks.Task MsConcatAsync (this Microsoft.Azure.Management.DataLake.Store.IFileSystemOperations operations, string accountName, string msConcatDestinationPath, System.IO.Stream streamContents, bool? deleteSourceDirectory = default, System.Threading.CancellationToken cancellationToken = default);public static System.Threading.Tasks.Task MsConcatAsync (this Microsoft.Azure.Management.DataLake.Store.IFileSystemOperations operations, string accountName, string path, System.IO.Stream streamContents, bool? deleteSourceDirectory = default, System.Threading.CancellationToken cancellationToken = default);static member MsConcatAsync : Microsoft.Azure.Management.DataLake.Store.IFileSystemOperations * string * string * System.IO.Stream * Nullable<bool> * System.Threading.CancellationToken -> System.Threading.Tasks.Taskstatic member MsConcatAsync : Microsoft.Azure.Management.DataLake.Store.IFileSystemOperations * string * string * System.IO.Stream * Nullable<bool> * System.Threading.CancellationToken -> System.Threading.Tasks.Task<Extension()>
Public Function MsConcatAsync (operations As IFileSystemOperations, accountName As String, msConcatDestinationPath As String, streamContents As Stream, Optional deleteSourceDirectory As Nullable(Of Boolean) = Nothing, Optional cancellationToken As CancellationToken = Nothing) As Task<Extension()>
Public Function MsConcatAsync (operations As IFileSystemOperations, accountName As String, path As String, streamContents As Stream, Optional deleteSourceDirectory As Nullable(Of Boolean) = Nothing, Optional cancellationToken As CancellationToken = Nothing) As TaskParameters
- operations
- IFileSystemOperations
The operations group for this extension method.
- accountName
- String
The Azure Data Lake Store account to execute filesystem operations on.
- msConcatDestinationPathpath
- String
The Data Lake Store path (starting with '/') of the destination file resulting from the concatenation.
- streamContents
- Stream
A list of Data Lake Store paths (starting with '/') of the source files. Must be a comma-separated path list in the format: sources=/file/path/1.txt,/file/path/2.txt,/file/path/lastfile.csv
Indicates that as an optimization instead of deleting each individual source stream, delete the source stream folder if all streams are in the same folder instead. This results in a substantial performance improvement when the only streams in the folder are part of the concatenation operation. WARNING: This includes the deletion of any other files that are not source files. Only set this to true when source files are the only files in the source directory.
- cancellationToken
- CancellationToken
The cancellation token.
