adls_filesystem function

Operations on an Azure Data Lake Storage Gen2 endpoint

Get, list, create, or delete ADLSgen2 filesystems.

adls_filesystem(endpoint, ...)

## S3 method for class 'character'
adls_filesystem(endpoint, key = NULL, token = NULL,
  sas = NULL, api_version = getOption("azure_storage_api_version"), ...)

## S3 method for class 'adls_endpoint'
adls_filesystem(endpoint, name, ...)

## S3 method for class 'adls_filesystem'
print(x, ...)

list_adls_filesystems(endpoint, ...)

## S3 method for class 'character'
list_adls_filesystems(endpoint, key = NULL,
  token = NULL, sas = NULL,
  api_version = getOption("azure_storage_api_version"), ...)

## S3 method for class 'adls_endpoint'
list_adls_filesystems(endpoint, ...)

create_adls_filesystem(endpoint, ...)

## S3 method for class 'character'
create_adls_filesystem(endpoint, key = NULL,
  token = NULL, sas = NULL,
  api_version = getOption("azure_storage_api_version"), ...)

## S3 method for class 'adls_filesystem'
create_adls_filesystem(endpoint, ...)

## S3 method for class 'adls_endpoint'
create_adls_filesystem(endpoint, name, ...)

delete_adls_filesystem(endpoint, ...)

## S3 method for class 'character'
delete_adls_filesystem(endpoint, key = NULL,
  token = NULL, sas = NULL,
  api_version = getOption("azure_storage_api_version"), ...)

## S3 method for class 'adls_filesystem'
delete_adls_filesystem(endpoint, ...)

## S3 method for class 'adls_endpoint'
delete_adls_filesystem(endpoint, name, confirm = TRUE, ...)

Arguments

• endpoint: Either an ADLSgen2 endpoint object as created by storage_endpoint or adls_endpoint , or a character string giving the URL of the endpoint.
• ...: Further arguments passed to lower-level functions.
• key, token, sas: If an endpoint object is not supplied, authentication credentials: either an access key, an Azure Active Directory (AAD) token, or a SAS, in that order of priority. Currently the sas argument is unused.
• api_version: If an endpoint object is not supplied, the storage API version to use when interacting with the host. Currently defaults to "2019-07-07".
• name: The name of the filesystem to get, create, or delete.
• x: For the print method, a filesystem object.
• confirm: For deleting a filesystem, whether to ask for confirmation.

Returns

For adls_filesystem and create_adls_filesystem, an S3 object representing an existing or created filesystem respectively.

For list_adls_filesystems, a list of such objects.

Details

You can call these functions in a couple of ways: by passing the full URL of the filesystem, or by passing the endpoint object and the name of the filesystem as a string.

If authenticating via AAD, you can supply the token either as a string, or as an object of class AzureToken, created via AzureRMR::get_azure_token . The latter is the recommended way of doing it, as it allows for automatic refreshing of expired tokens.

Examples

## Not run:

endp <- adls_endpoint("https://mystorage.dfs.core.windows.net/", key="access_key")

# list ADLSgen2 filesystems
list_adls_filesystems(endp)

# get, create, and delete a filesystem
adls_filesystem(endp, "myfs")
create_adls_filesystem(endp, "newfs")
delete_adls_filesystem(endp, "newfs")

# alternative way to do the same
adls_filesystem("https://mystorage.dfs.core.windows.net/myfs", key="access_key")
create_adls_filesystem("https://mystorage.dfs.core.windows.net/newfs", key="access_key")
delete_adls_filesystem("https://mystorage.dfs.core.windows.net/newfs", key="access_key")
## End(Not run)

See Also

storage_endpoint , az_storage , storage_container