@InterfaceAudience.Public @InterfaceStability.Stable public class NativeAzureFileSystem extends FileSystem
FileSystem
for reading and writing files stored on Windows Azure. This implementation is
blob-based and stores files on Azure in their native form so they can be read
by other Azure tools.Modifier and Type | Field and Description |
---|---|
static String |
APPEND_SUPPORT_ENABLE_PROPERTY_NAME |
static org.slf4j.Logger |
LOG |
static String |
SKIP_AZURE_METRICS_PROPERTY_NAME |
DEFAULT_FS, FS_DEFAULT_NAME_KEY, SHUTDOWN_HOOK_PRIORITY, statistics, TRASH_PREFIX
Constructor and Description |
---|
NativeAzureFileSystem() |
NativeAzureFileSystem(org.apache.hadoop.fs.azure.NativeFileSystemStore store) |
Modifier and Type | Method and Description |
---|---|
org.apache.hadoop.fs.azure.SelfRenewingLease |
acquireLease(Path path)
Get a self-renewing lease on the specified file.
|
FSDataOutputStream |
append(Path f,
int bufferSize,
Progressable progress)
This optional operation is not yet supported.
|
protected void |
checkPath(Path path)
Check that a Path belongs to this FileSystem.
|
void |
close()
No more filesystem operations are needed.
|
FSDataOutputStream |
create(Path f,
FsPermission permission,
boolean overwrite,
int bufferSize,
short replication,
long blockSize,
Progressable progress)
Create an FSDataOutputStream at the indicated Path with write-progress
reporting.
|
FSDataOutputStream |
createNonRecursive(Path f,
boolean overwrite,
int bufferSize,
short replication,
long blockSize,
Progressable progress)
Opens an FSDataOutputStream at the indicated Path with write-progress
reporting.
|
FSDataOutputStream |
createNonRecursive(Path f,
FsPermission permission,
boolean overwrite,
int bufferSize,
short replication,
long blockSize,
Progressable progress)
Opens an FSDataOutputStream at the indicated Path with write-progress
reporting.
|
FSDataOutputStream |
createNonRecursive(Path f,
FsPermission permission,
EnumSet<CreateFlag> flags,
int bufferSize,
short replication,
long blockSize,
Progressable progress)
Opens an FSDataOutputStream at the indicated Path with write-progress
reporting.
|
boolean |
delete(Path path)
Deprecated.
|
boolean |
delete(Path f,
boolean recursive)
Delete a file.
|
boolean |
delete(Path f,
boolean recursive,
boolean skipParentFolderLastModifidedTimeUpdate)
Delete the specified file or folder.
|
void |
deleteFilesWithDanglingTempData(Path root)
Looks under the given root path for any blob that are left "dangling",
meaning that they are place-holder blobs that we created while we upload
the data to a temporary blob, but for some reason we crashed in the middle
of the upload and left them there.
|
protected void |
finalize() |
BlockLocation[] |
getFileBlockLocations(FileStatus file,
long start,
long len)
Return an array containing hostnames, offset and size of
portions of the given file.
|
FileStatus |
getFileStatus(Path f)
Return a file status object that represents the path.
|
AzureFileSystemInstrumentation |
getInstrumentation()
Gets the metrics source for this file system.
|
String |
getScheme()
Return the protocol scheme for the FileSystem.
|
org.apache.hadoop.fs.azure.AzureNativeFileSystemStore |
getStore()
For unit test purposes, retrieves the AzureNativeFileSystemStore store
backing this file system.
|
URI |
getUri()
Returns a URI whose scheme and authority identify this FileSystem.
|
Path |
getWorkingDirectory()
Get the current working directory for the given file system
|
void |
initialize(URI uri,
Configuration conf)
Called after a new FileSystem instance is constructed.
|
FileStatus[] |
listStatus(Path f)
Retrieve the status of a given path if it is a file, or of all the
contained files if it is a directory.
|
Path |
makeAbsolute(Path path)
Get the absolute version of the path (fully qualified).
|
boolean |
mkdirs(Path f,
FsPermission permission)
Make the given file and all non-existent parents into
directories.
|
boolean |
mkdirs(Path f,
FsPermission permission,
boolean noUmask) |
static String |
newMetricsSourceName()
Creates a new metrics source name that's unique within this process.
|
FSDataInputStream |
open(Path f,
int bufferSize)
Opens an FSDataInputStream at the indicated Path.
|
String |
pathToKey(Path path)
Convert the path to a key.
|
void |
recoverFilesWithDanglingTempData(Path root,
Path destination)
Looks under the given root path for any blob that are left "dangling",
meaning that they are place-holder blobs that we created while we upload
the data to a temporary blob, but for some reason we crashed in the middle
of the upload and left them there.
|
boolean |
rename(Path src,
Path dst)
Renames Path src to Path dst.
|
void |
setOwner(Path p,
String username,
String groupname)
Set owner of a path (i.e.
|
void |
setPermission(Path p,
FsPermission permission)
Set permission of a path.
|
void |
setWorkingDirectory(Path newDir)
Set the working directory to the given directory.
|
addDelegationTokens, append, append, areSymlinksEnabled, cancelDeleteOnExit, canonicalizeUri, clearStatistics, closeAll, closeAllForUGI, completeLocalOutput, concat, copyFromLocalFile, copyFromLocalFile, copyFromLocalFile, copyFromLocalFile, copyToLocalFile, copyToLocalFile, copyToLocalFile, create, create, create, create, create, create, create, create, create, create, create, create, createNewFile, createSnapshot, createSnapshot, createSymlink, deleteOnExit, deleteSnapshot, enableSymlinks, exists, fixRelativePart, get, get, get, getAclStatus, getAllStatistics, getAllStoragePolicies, getBlockSize, getCanonicalServiceName, getCanonicalUri, getContentSummary, getDefaultBlockSize, getDefaultBlockSize, getDefaultPort, getDefaultReplication, getDefaultReplication, getDefaultUri, getFileBlockLocations, getFileChecksum, getFileChecksum, getFileLinkStatus, getFileSystemClass, getFSofPath, getGlobalStorageStatistics, getHomeDirectory, getInitialWorkingDirectory, getLength, getLinkTarget, getLocal, getName, getNamed, getQuotaUsage, getReplication, getServerDefaults, getServerDefaults, getStatistics, getStatistics, getStatus, getStatus, getStoragePolicy, getStorageStatistics, getTrashRoot, getTrashRoots, getUsed, getUsed, getXAttr, getXAttrs, getXAttrs, globStatus, globStatus, isDirectory, isFile, listCorruptFileBlocks, listFiles, listLocatedStatus, listLocatedStatus, listStatus, listStatus, listStatus, listStatusIterator, listXAttrs, makeQualified, mkdirs, mkdirs, modifyAclEntries, moveFromLocalFile, moveFromLocalFile, moveToLocalFile, newInstance, newInstance, newInstance, newInstanceLocal, open, primitiveCreate, primitiveMkdir, primitiveMkdir, printStatistics, processDeleteOnExit, removeAcl, removeAclEntries, removeDefaultAcl, removeXAttr, rename, renameSnapshot, resolveLink, resolvePath, setAcl, setDefaultUri, setDefaultUri, setReplication, setStoragePolicy, setTimes, setVerifyChecksum, setWriteChecksum, setXAttr, setXAttr, startLocalOutput, supportsSymlinks, truncate, unsetStoragePolicy
getConf, setConf
public static final org.slf4j.Logger LOG
public static final String SKIP_AZURE_METRICS_PROPERTY_NAME
public static final String APPEND_SUPPORT_ENABLE_PROPERTY_NAME
public NativeAzureFileSystem()
public NativeAzureFileSystem(org.apache.hadoop.fs.azure.NativeFileSystemStore store)
public String getScheme()
FileSystem
UnsupportedOperationException
.getScheme
in class FileSystem
public static String newMetricsSourceName()
protected void checkPath(Path path)
FileSystem
checkPath
in class FileSystem
path
- to checkpublic void initialize(URI uri, Configuration conf) throws IOException, IllegalArgumentException
FileSystem
initialize
in class FileSystem
uri
- a uri whose authority section names the host, port, etc.
for this FileSystemconf
- the configurationIOException
IllegalArgumentException
public String pathToKey(Path path)
public Path makeAbsolute(Path path)
path
- public org.apache.hadoop.fs.azure.AzureNativeFileSystemStore getStore()
public AzureFileSystemInstrumentation getInstrumentation()
public FSDataOutputStream append(Path f, int bufferSize, Progressable progress) throws IOException
append
in class FileSystem
f
- the existing file to be appended.bufferSize
- the size of the buffer to be used.progress
- for reporting progress if it is not null.IOException
public FSDataOutputStream create(Path f, FsPermission permission, boolean overwrite, int bufferSize, short replication, long blockSize, Progressable progress) throws IOException
FileSystem
create
in class FileSystem
f
- the file name to openoverwrite
- if a file with this name already exists, then if true,
the file will be overwritten, and if false an error will be thrown.bufferSize
- the size of the buffer to be used.replication
- required block replication for the file.IOException
FileSystem.setPermission(Path, FsPermission)
public org.apache.hadoop.fs.azure.SelfRenewingLease acquireLease(Path path) throws AzureException
AzureException
public FSDataOutputStream createNonRecursive(Path f, FsPermission permission, boolean overwrite, int bufferSize, short replication, long blockSize, Progressable progress) throws IOException
FileSystem
createNonRecursive
in class FileSystem
f
- the file name to openoverwrite
- if a file with this name already exists, then if true,
the file will be overwritten, and if false an error will be thrown.bufferSize
- the size of the buffer to be used.replication
- required block replication for the file.IOException
FileSystem.setPermission(Path, FsPermission)
public FSDataOutputStream createNonRecursive(Path f, FsPermission permission, EnumSet<CreateFlag> flags, int bufferSize, short replication, long blockSize, Progressable progress) throws IOException
FileSystem
createNonRecursive
in class FileSystem
f
- the file name to openflags
- CreateFlag
s to use for this stream.bufferSize
- the size of the buffer to be used.replication
- required block replication for the file.IOException
FileSystem.setPermission(Path, FsPermission)
public FSDataOutputStream createNonRecursive(Path f, boolean overwrite, int bufferSize, short replication, long blockSize, Progressable progress) throws IOException
FileSystem
createNonRecursive
in class FileSystem
f
- the file name to openoverwrite
- if a file with this name already exists, then if true,
the file will be overwritten, and if false an error will be thrown.bufferSize
- the size of the buffer to be used.replication
- required block replication for the file.IOException
FileSystem.setPermission(Path, FsPermission)
@Deprecated public boolean delete(Path path) throws IOException
FileSystem
delete
in class FileSystem
IOException
public boolean delete(Path f, boolean recursive) throws IOException
FileSystem
delete
in class FileSystem
f
- the path to delete.recursive
- if path is a directory and set to
true, the directory is deleted else throws an exception. In
case of a file the recursive can be set to either true or false.IOException
public boolean delete(Path f, boolean recursive, boolean skipParentFolderLastModifidedTimeUpdate) throws IOException
f
- recursive
- skipParentFolderLastModifidedTimeUpdate
- If true, don't update the folder last
modified time.IOException
public FileStatus getFileStatus(Path f) throws FileNotFoundException, IOException
FileSystem
getFileStatus
in class FileSystem
f
- The path we want information fromFileNotFoundException
- when the path does not exist;
IOException see specific implementationIOException
public URI getUri()
FileSystem
getUri
in class FileSystem
public FileStatus[] listStatus(Path f) throws FileNotFoundException, IOException
listStatus
in class FileSystem
f
- given pathFileNotFoundException
- when the path does not exist;
IOException see specific implementationIOException
public boolean mkdirs(Path f, FsPermission permission) throws IOException
FileSystem
mkdirs
in class FileSystem
f
- path to createpermission
- to apply to fIOException
public boolean mkdirs(Path f, FsPermission permission, boolean noUmask) throws IOException
IOException
public FSDataInputStream open(Path f, int bufferSize) throws FileNotFoundException, IOException
FileSystem
open
in class FileSystem
f
- the file name to openbufferSize
- the size of the buffer to be used.FileNotFoundException
IOException
public boolean rename(Path src, Path dst) throws FileNotFoundException, IOException
FileSystem
rename
in class FileSystem
src
- path to be renameddst
- new path after renameIOException
- on failureFileNotFoundException
public BlockLocation[] getFileBlockLocations(FileStatus file, long start, long len) throws IOException
getFileBlockLocations
in class FileSystem
file
- FilesStatus to get data fromstart
- offset into the given filelen
- length for which to get locations forIOException
public void setWorkingDirectory(Path newDir)
setWorkingDirectory
in class FileSystem
public Path getWorkingDirectory()
FileSystem
getWorkingDirectory
in class FileSystem
public void setPermission(Path p, FsPermission permission) throws FileNotFoundException, IOException
FileSystem
setPermission
in class FileSystem
FileNotFoundException
IOException
public void setOwner(Path p, String username, String groupname) throws IOException
FileSystem
setOwner
in class FileSystem
p
- The pathusername
- If it is null, the original username remains unchanged.groupname
- If it is null, the original groupname remains unchanged.IOException
public void close() throws IOException
FileSystem
close
in interface Closeable
close
in interface AutoCloseable
close
in class FileSystem
IOException
public void recoverFilesWithDanglingTempData(Path root, Path destination) throws IOException
root
- The root path to consider.destination
- The destination path to move any recovered files to.IOException
public void deleteFilesWithDanglingTempData(Path root) throws IOException
root
- The root path to consider.IOException
Copyright © 2017 Apache Software Foundation. All rights reserved.