Apache Jakarta Commons IO

An abstract class which implements the Java FileFilter and FilenameFilter interfaces via the IOFileFilter interface.

AgeFileFilter

Filters files based on a cutoff time, can filter either older or newer files.

AndFileFilter

A FileFilter providing conditional AND logic across a list of file filters.

ByteArrayOutputStream

ClassLoaderObjectInputStream

This class implements an output stream in which the data is written into a byte array.

A special ObjectInputStream that loads a class based on a specified ClassLoader rather than the system default.

CopyUtils

This class provides static utility methods for buffered copying between sources (InputStream, Reader, String and byte[]) and destinations (OutputStream, Writer, String and byte[]).

CountingInputStream

A decorating input stream that counts the number of bytes that have passed through so far.

CountingOutputStream

Used in debugging, it counts the number of bytes that pass through it.

DeferredFileOutputStream

An output stream which will retain data in memory until a specified threshold is reached, and only then commit it to disk.

DelegateFileFilter

This class turns a Java FileFilter or FilenameFilter into an IO FileFilter.

DemuxInputStream

Data written to this stream is forwarded to a stream that has been associated with this thread.

DemuxOutputStream

Data written to this stream is forwarded to a stream that has been associated with this thread.

DirectoryFileFilter

This filter accepts Files that are directories.

EndianUtils

Utility code for dealing with different endian systems.

FalseFileFilter

A file filter that always returns false.

FileCleaner

Keeps track of files awaiting deletion, and deletes them when an associated marker object is reclaimed by the garbage collector.

FileFilterUtils

Useful utilities for working with file filters.

FilenameUtils

General filename and filepath manipulation utilities.

FileSystemUtils

General File System utilities.

FileUtils

General file manipulation utilities.

HexDump

Dumps data in hexadecimal format.

IOUtils

General IO stream manipulation utilities.

LineIterator

An Iterator over the lines in a Reader.

LockableFileWriter

FileWriter that will create and honor lock files to allow simple cross thread file lock handling.

NameFileFilter

Filters filenames for a certain name.

NotFileFilter

This filter produces a logical NOT of the filters specified.

NullOutputStream

This OutputStream writes all data to the famous /dev/null.

OrFileFilter

A FileFilter providing conditional OR logic across a list of file filters.

PrefixFileFilter

Filters filenames for a certain prefix.

ProxyInputStream

A Proxy stream which acts as expected, that is it passes the method calls on to the proxied stream and doesn't change which methods are being called.

ProxyOutputStream

A Proxy stream which acts as expected, that is it passes the method calls on to the proxied stream and doesn't change which methods are being called.

ProxyReader

A Proxy stream which acts as expected, that is it passes the method calls on to the proxied stream and doesn't change which methods are being called.

ProxyWriter

A Proxy stream which acts as expected, that is it passes the method calls on to the proxied stream and doesn't change which methods are being called.

SizeFileFilter

Filters files based on size, can filter either larger or smaller files as compared to a given threshold.

SuffixFileFilter

Filters files based on the suffix (what the filename ends with).

SwappedDataInputStream

DataInput for systems relying on little endian data formats.

TeeOutputStream

Classic splitter of OutputStream.

ThresholdingOutputStream

An output stream which triggers an event when a specified number of bytes of data have been written to it.

TrueFileFilter

A file filter that always returns true.

WildcardFilter