Apache Hadoop® FileSystem interface implemented by DseFileSystem

The DseFileSystem class has partial support of the Apache Hadoop FileSystem interface. The following table outlines which methods have been implemented.

Methods of Hadoop FileSystem interface implemented by `DseFileSystem`
Method	Status	Comment
`getScheme()`	Supported	since 5.0.12, 5.1.6
`getURI()`	Supported
`getName()`	Supported	default, deprecated
`getDefaultPort()`	Supported	since 5.0.12, 5.1.6
`makeQualified(Path)`	Supported	default
`getDelegationToken(String)`	Not supported	returns null
`addDelegationTokens(String, Credentials)`	Not supported
`collectDelegationTokens(...)`	Not supported
`getChildFileSystems()`	Supported	default, returns null
`getFileBlockLocations(FileStatus, long, long)`	Supported
`getFileBlockLocations(Path, long, long)`	Supported
`getServerDefaults()`	Supported	default, deprecated
`getServerDefaults(Path)`	Supported	default
`resolvePath(Path)`	Supported	default
`open`	Supported	all variants, buffer size not supported
`create`	Supported	all variants, checksum options, progress reporting and `APPEND`, `NEW_BLOCK` flags not supported
`createNonRecursive`	Not supported	all variants
`createNewFile`	Supported	default
`append`	Supported	all variants, progress reporting not supported
`concat`	Supported	since 5.0.12, 5.1.6
`getReplication(Path)`	Supported
`setReplication(Path, short)`	Not supported	does nothing
`rename`	Supported
`truncate(Path, long)`	Supported	since 5.0.12, 5.1.6
`delete(Path)`	Supported
`delete(Path, boolean)`	Supported
`deleteOnExit(Path)`	Supported	default
`cancelDeleteOnExit(Path)`	Supported	default
`exists(Path)`	Supported
`isDirectory(Path)`	Supported
`isFile(Path)`	Supported
`getLength(Path)`	Supported
`getContentSummary(Path)`	Supported	default
`listStatus`	Supported	all variants
`listCorruptFileBlocks(Path)`	Not supported	throws `UnsupportedOperationException`
`globStatus`	Supported	default
`listLocatedStatus`	Supported	default
`listStatusIterator`	Supported	default
`listFiles`	Supported	default
`getHomeDirectory()`	Supported	default
`getWorkingDirectory()`	Supported
`setWorkingDirectory()`	Supported
`getInitialWorkingDirectory()`	Partially supported	default,returns null
`mkdirs`	Supported
`copyFromLocalFile`	Supported	default
`moveFromLocalFile`	Supported	default
`copyToLocalFile`	Supported	default
`moveToLocalFile`	Supported	default
`startLocalOutput`	Supported	default
`close`	Supported
`getUsed`	Supported	default, slow
`getBlockSize`	Supported
`getDefaultBlockSize()`	Supported	since 5.0.12, 5.1.6
`getDefaultBlockSize(Path)`	Supported	since 5.0.12, 5.1.6
`getDefaultReplication()`	Supported	since 5.0.12, 5.1.6
`getDefaultReplication(Path)`	Supported	since 5.0.12, 5.1.6
`getFileStatus(Path)`	Supported
`access(Path, FsAction)`	Supported	default
`createSymLink`	Not supported	throws `UnsupportedOperationException`
`getFileLinkStatus`	Partially supported	default, same as `getFileStatus`
`supportsSymLinks`	Supported	returns false
`getLinkTarget`	Not supported	throws `UnsupportedOperationException`
`resolveLink`	Not supported	throws `UnsupportedOperationException`
`getFileChecksum`	Not supported	returns null
`setVerifyChecksum`	Not supported	does nothing
`setWriteChecksum`	Not supported	does nothing
`getStatus`	Not supported	default, returns incorrect default data
`setPermission`	Supported
`setOwner`	Supported
`setTimes`	Not supported	does nothing
`createSnapshot`	Not supported	throws `UnsupportedOperationException`
`renameSnapshot`	Not supported	throws `UnsupportedOperationException`
`deleteSnapshot`	Not supported	throws `UnsupportedOperationException`
`modifyAclEntries`	Not supported	throws `UnsupportedOperationException`
`removeAclEntries`	Not supported	throws `UnsupportedOperationException`
`removeDefaultAcl`	Not supported	throws `UnsupportedOperationException`
`removeAcl`	Not supported	throws `UnsupportedOperationException`
`setAcl`	Not supported	throws `UnsupportedOperationException`
`getAclStatus`	Not supported	throws `UnsupportedOperationException`
`setXAttr`	Not supported	throws `UnsupportedOperationException`
`getXAttr`	Not supported	throws `UnsupportedOperationException`
`getXAttrs`	Not supported	throws `UnsupportedOperationException`
`listXAttrs`	Not supported	throws `UnsupportedOperationException`
`removeXAttr`	Not supported	throws `UnsupportedOperationException`

Apache Hadoop® FileSystem interface implemented by DseFileSystem

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