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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:54:28 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:54:28 +0000 |
commit | e6918187568dbd01842d8d1d2c808ce16a894239 (patch) | |
tree | 64f88b554b444a49f656b6c656111a145cbbaa28 /src/arrow/r/man/FileSystem.Rd | |
parent | Initial commit. (diff) | |
download | ceph-e6918187568dbd01842d8d1d2c808ce16a894239.tar.xz ceph-e6918187568dbd01842d8d1d2c808ce16a894239.zip |
Adding upstream version 18.2.2.upstream/18.2.2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/arrow/r/man/FileSystem.Rd')
-rw-r--r-- | src/arrow/r/man/FileSystem.Rd | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/src/arrow/r/man/FileSystem.Rd b/src/arrow/r/man/FileSystem.Rd new file mode 100644 index 000000000..2f3dcff67 --- /dev/null +++ b/src/arrow/r/man/FileSystem.Rd @@ -0,0 +1,99 @@ +% Generated by roxygen2: do not edit by hand +% Please edit documentation in R/filesystem.R +\docType{class} +\name{FileSystem} +\alias{FileSystem} +\alias{LocalFileSystem} +\alias{S3FileSystem} +\alias{SubTreeFileSystem} +\title{FileSystem classes} +\description{ +\code{FileSystem} is an abstract file system API, +\code{LocalFileSystem} is an implementation accessing files +on the local machine. \code{SubTreeFileSystem} is an implementation that delegates +to another implementation after prepending a fixed base path +} +\section{Factory}{ + + +\code{LocalFileSystem$create()} returns the object and takes no arguments. + +\code{SubTreeFileSystem$create()} takes the following arguments: +\itemize{ +\item \code{base_path}, a string path +\item \code{base_fs}, a \code{FileSystem} object +} + +\code{S3FileSystem$create()} optionally takes arguments: +\itemize{ +\item \code{anonymous}: logical, default \code{FALSE}. If true, will not attempt to look up +credentials using standard AWS configuration methods. +\item \code{access_key}, \code{secret_key}: authentication credentials. If one is provided, +the other must be as well. If both are provided, they will override any +AWS configuration set at the environment level. +\item \code{session_token}: optional string for authentication along with +\code{access_key} and \code{secret_key} +\item \code{role_arn}: string AWS ARN of an AccessRole. If provided instead of \code{access_key} and +\code{secret_key}, temporary credentials will be fetched by assuming this role. +\item \code{session_name}: optional string identifier for the assumed role session. +\item \code{external_id}: optional unique string identifier that might be required +when you assume a role in another account. +\item \code{load_frequency}: integer, frequency (in seconds) with which temporary +credentials from an assumed role session will be refreshed. Default is +900 (i.e. 15 minutes) +\item \code{region}: AWS region to connect to. If omitted, the AWS library will +provide a sensible default based on client configuration, falling back +to "us-east-1" if no other alternatives are found. +\item \code{endpoint_override}: If non-empty, override region with a connect string +such as "localhost:9000". This is useful for connecting to file systems +that emulate S3. +\item \code{scheme}: S3 connection transport (default "https") +\item \code{background_writes}: logical, whether \code{OutputStream} writes will be issued +in the background, without blocking (default \code{TRUE}) +} +} + +\section{Methods}{ + +\itemize{ +\item \verb{$GetFileInfo(x)}: \code{x} may be a \link{FileSelector} or a character +vector of paths. Returns a list of \link{FileInfo} +\item \verb{$CreateDir(path, recursive = TRUE)}: Create a directory and subdirectories. +\item \verb{$DeleteDir(path)}: Delete a directory and its contents, recursively. +\item \verb{$DeleteDirContents(path)}: Delete a directory's contents, recursively. +Like \verb{$DeleteDir()}, +but doesn't delete the directory itself. Passing an empty path (\code{""}) will +wipe the entire filesystem tree. +\item \verb{$DeleteFile(path)} : Delete a file. +\item \verb{$DeleteFiles(paths)} : Delete many files. The default implementation +issues individual delete operations in sequence. +\item \verb{$Move(src, dest)}: Move / rename a file or directory. If the destination +exists: +if it is a non-empty directory, an error is returned +otherwise, if it has the same type as the source, it is replaced +otherwise, behavior is unspecified (implementation-dependent). +\item \verb{$CopyFile(src, dest)}: Copy a file. If the destination exists and is a +directory, an error is returned. Otherwise, it is replaced. +\item \verb{$OpenInputStream(path)}: Open an \link[=InputStream]{input stream} for +sequential reading. +\item \verb{$OpenInputFile(path)}: Open an \link[=RandomAccessFile]{input file} for random +access reading. +\item \verb{$OpenOutputStream(path)}: Open an \link[=OutputStream]{output stream} for +sequential writing. +\item \verb{$OpenAppendStream(path)}: Open an \link[=OutputStream]{output stream} for +appending. +} +} + +\section{Active bindings}{ + +\itemize{ +\item \verb{$type_name}: string filesystem type name, such as "local", "s3", etc. +\item \verb{$region}: string AWS region, for \code{S3FileSystem} and \code{SubTreeFileSystem} +containing a \code{S3FileSystem} +\item \verb{$base_fs}: for \code{SubTreeFileSystem}, the \code{FileSystem} it contains +\item \verb{$base_path}: for \code{SubTreeFileSystem}, the path in \verb{$base_fs} which is considered +root in this \code{SubTreeFileSystem}. +} +} + |