Package org.apache.flink.core.fs

Interface Summary

Interface	Description
BlockLocation	A BlockLocation lists hosts, offset and length of block.
FileStatus	Interface that represents the client side information for a file independent of the file system.
FileSystemFactory	A factory to create file systems.
WrappingProxyCloseable<T extends Closeable>	WrappingProxy for Closeable that is also closeable.

Class Summary

Class	Description
AbstractMultiFSDataInputStream	Abstract base class for wrappers over multiple FSDataInputStream, which gives a contiguous view on all inner streams and makes them look like a single stream, in which we can read, seek, etc.
CloseableRegistry	This class allows to register instances of Closeable, which are all closed if this registry is closed.
ClosingFSDataInputStream	This class is a WrappingProxy for FSDataInputStream that is used to implement a safety net against unclosed streams.
ClosingFSDataOutputStream	This class is a WrappingProxy for FSDataOutputStream that is used to implement a safety net against unclosed streams.
ConnectionLimitingFactory	A wrapping factory that adds a LimitedConnectionsFileSystem to a file system.
FileInputSplit	A file input split provides information on a particular part of a file, possibly hosted on a distributed file system and replicated among several hosts.
FileSystem	Abstract base class of all file systems used by Flink.
FileSystemSafetyNet	The FileSystemSafetyNet can be used to guard a thread against FileSystem stream resource leaks.
FSDataInputStream	Interface for a data input stream to a file on a FileSystem.
FSDataInputStreamWrapper	Simple forwarding wrapper around FSDataInputStream.
FSDataOutputStream	An output stream to a file that is created via a FileSystem.
FSDataOutputStreamWrapper	Simple forwarding wrapper around FSDataInputStream.
LimitedConnectionsFileSystem	A file system that limits the number of concurrently open input streams, output streams, and total streams for a target file system.
LimitedConnectionsFileSystem.ConnectionLimitingSettings	A simple configuration data object capturing the settings for limited connections.
Path	Names a file or directory in a FileSystem.
SafetyNetCloseableRegistry	This implementation of an AbstractCloseableRegistry registers WrappingProxyCloseable.
SafetyNetWrapperFileSystem	This is a WrappingProxy around FileSystem which (i) wraps all opened streams as ClosingFSDataInputStream or ClosingFSDataOutputStream and (ii) registers them to a SafetyNetCloseableRegistry.

Enum Summary

Enum	Description
FileSystem.WriteMode	The possible write modes.
FileSystemKind	An enumeration defining the kind and characteristics of a FileSystem.

Exception Summary

Exception	Description
LimitedConnectionsFileSystem.StreamTimeoutException	A special IOException, indicating a timeout in the data output stream.
UnsupportedFileSystemSchemeException	An exception to indicate that a specific file system scheme is not supported.