| Package | Description | 
|---|---|
| org.apache.hadoop.fs | An abstract file system API. | 
| org.apache.hadoop.fs.crypto | |
| org.apache.hadoop.fs.ftp | |
| org.apache.hadoop.fs.sftp | SFTP FileSystem package. | 
| org.apache.hadoop.fs.viewfs | |
| org.apache.hadoop.io | Generic i/o code for use when reading and writing data to the network,
to databases, and to files. | 
| org.apache.hadoop.io.file.tfile | |
| org.apache.hadoop.util | Common utilities. | 
| Modifier and Type | Method and Description | 
|---|---|
| FSDataInputStream | AbstractFileSystem. open(Path f)The specification of this method matches that of
  FileContext.open(Path)except that Path f must be for this
 file system. | 
| FSDataInputStream | FileContext. open(Path f)Opens an FSDataInputStream at the indicated Path using
 default buffersize. | 
| FSDataInputStream | FileSystem. open(Path f)Opens an FSDataInputStream at the indicated Path. | 
| FSDataInputStream | ChecksumFileSystem. open(Path f,
    int bufferSize)Opens an FSDataInputStream at the indicated Path. | 
| abstract FSDataInputStream | AbstractFileSystem. open(Path f,
    int bufferSize)The specification of this method matches that of
  FileContext.open(Path, int)except that Path f must be for this
 file system. | 
| FSDataInputStream | FileContext. open(Path f,
    int bufferSize)Opens an FSDataInputStream at the indicated Path. | 
| FSDataInputStream | FilterFileSystem. open(Path f,
    int bufferSize)Opens an FSDataInputStream at the indicated Path. | 
| FSDataInputStream | HarFileSystem. open(Path f,
    int bufferSize)Returns a har input stream which fakes end of 
 file. | 
| abstract FSDataInputStream | FileSystem. open(Path f,
    int bufferSize)Opens an FSDataInputStream at the indicated Path. | 
| FSDataInputStream | RawLocalFileSystem. open(Path f,
    int bufferSize) | 
| Modifier and Type | Method and Description | 
|---|---|
| boolean | ChecksumFileSystem. reportChecksumFailure(Path f,
                     FSDataInputStream in,
                     long inPos,
                     FSDataInputStream sums,
                     long sumsPos)Report a checksum error to the file system. | 
| boolean | LocalFileSystem. reportChecksumFailure(Path p,
                     FSDataInputStream in,
                     long inPos,
                     FSDataInputStream sums,
                     long sumsPos)Moves files to a bad file directory on the same device, so that their
 storage will not be reused. | 
| Constructor and Description | 
|---|
| AvroFSInput(FSDataInputStream in,
           long len)Construct given an  FSDataInputStreamand its length. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | CryptoFSDataInputStream | 
| Constructor and Description | 
|---|
| CryptoFSDataInputStream(FSDataInputStream in,
                       org.apache.hadoop.crypto.CryptoCodec codec,
                       byte[] key,
                       byte[] iv) | 
| CryptoFSDataInputStream(FSDataInputStream in,
                       org.apache.hadoop.crypto.CryptoCodec codec,
                       int bufferSize,
                       byte[] key,
                       byte[] iv) | 
| Modifier and Type | Method and Description | 
|---|---|
| FSDataInputStream | FTPFileSystem. open(Path file,
    int bufferSize) | 
| Modifier and Type | Method and Description | 
|---|---|
| FSDataInputStream | SFTPFileSystem. open(Path f,
    int bufferSize) | 
| Modifier and Type | Method and Description | 
|---|---|
| FSDataInputStream | ViewFs. open(Path f,
    int bufferSize) | 
| FSDataInputStream | ViewFileSystem. open(Path f,
    int bufferSize) | 
| Modifier and Type | Method and Description | 
|---|---|
| protected static FSDataInputStream | SecureIOUtils. forceSecureOpenFSDataInputStream(File file,
                                String expectedOwner,
                                String expectedGroup)Same as openFSDataInputStream except that it will run even if security is
 off. | 
| protected FSDataInputStream | SequenceFile.Reader. openFile(FileSystem fs,
        Path file,
        int bufferSize,
        long length)Override this method to specialize the type of
  FSDataInputStreamreturned. | 
| static FSDataInputStream | SecureIOUtils. openFSDataInputStream(File file,
                     String expectedOwner,
                     String expectedGroup)Opens the  FSDataInputStreamon the requested file on local file
 system, verifying the expected user/group constraints if security is
 enabled. | 
| Modifier and Type | Method and Description | 
|---|---|
| static SequenceFile.Reader.Option | SequenceFile.Reader. stream(FSDataInputStream value)Create an option to specify the stream with the sequence file. | 
| Constructor and Description | 
|---|
| SequenceFile.Reader(FSDataInputStream in,
                   int buffersize,
                   long start,
                   long length,
                   Configuration conf)Deprecated. 
 Use Reader(Configuration, Reader.Option...) instead. | 
| Constructor and Description | 
|---|
| BoundedRangeFileInputStream(FSDataInputStream in,
                           long offset,
                           long length)Constructor | 
| TFile.Reader(FSDataInputStream fsdis,
            long fileLength,
            Configuration conf)Constructor | 
| Modifier and Type | Method and Description | 
|---|---|
| FSDataInputStream | Options.FSDataInputStreamOption. getValue() | 
| Constructor and Description | 
|---|
| Options.FSDataInputStreamOption(FSDataInputStream value) | 
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