All Classes and Interfaces
Class
Description
This is the base class for implementing an output stream in which the data
is written into a byte array.
Constructor for an InputStream subclass.
A filter reader that filters out characters where subclasses decide which characters to filter out.
Abstract file
Comparator which provides sorting for file arrays and lists.Abstracts the implementation of the
FileFilter (IO), FilenameFilter (IO), PathFilter (NIO)
interfaces via our own IOFileFilter interface.Abstracts the origin of data for builders like a
File, Path, Reader, Writer, InputStream, OutputStream, and
URI.A
byte[] origin.A
CharSequence origin.A
File origin.An
InputStream origin.An
OutputStream origin.A
Path origin.An
Reader origin.A
URI origin.An
Writer origin.Abstracts building an instance of
T.Abstracts building a typed instance of
T.Abstracts supplying an instance of
T.Accumulates normalized paths during visitation.
Filters files based on a cutoff time, can filter either newer files or files equal to or older.
A
FileFilter providing conditional AND logic across a list of
file filters.OutputStream implementation that writes the data to an
Appendable
Object.Writer implementation that writes the data to an
Appendable
Object.Proxy stream that closes and discards the underlying stream as soon as the
end of input has been reached or when the stream is explicitly closed.
Builds a new
AutoCloseInputStream instance.This class is used to wrap a stream that includes an encoded
ByteOrderMark as its first bytes.Builds a new
BOMInputStream instance.Reads bytes up to a maximum length, if its count goes above that, it stops.
A reader that imposes a limit to the number of characters that can be read from an underlying reader, returning EOF
when this limit is reached, regardless of state of underlying reader.
Always throws an
IOException from all the InputStream methods where the exception is declared.Broken output stream.
Always throws an
IOException from all the Reader methods where the exception is declared.Always throws an
IOException from all Writer methods.InputStream implementation which uses direct buffer to read a file to avoid extra copy of data between Java and native memory which happens when
using BufferedInputStream.Builds a new
BufferedFileChannelInputStream instance.Implements a ThreadSafe version of
AbstractByteArrayOutputStream using instance synchronization.Cleans a direct
ByteBuffer.Byte Order Mark (BOM) representation.
Converts Strings to
ByteOrder instances.This filter accepts
Files that can be executed.This filter accepts
Files that can be read.This filter accepts
Files that can be written to.A filter reader that filters out a given character represented as an
int code point, handy to remove
known junk characters from CSV files for example.A filter reader that removes a given set of characters represented as
int code points, handy to remove known
junk characters from CSV files for example.Implements an
InputStream to read from String, StringBuffer, StringBuilder or CharBuffer.Builds a new
CharSequenceInputStream instance.Reader implementation that can read from String, StringBuffer,
StringBuilder or CharBuffer.Works with
CharsetDecoder.Works with
CharsetEncoder.Charsets required of every implementation of the Java platform.
OutputStream which breaks larger output blocks into chunks.
Builds a new
UnsynchronizedByteArrayOutputStream instance.Writer which breaks larger output blocks into chunks.
Implements a buffered input stream, which is internally based on a
CircularByteBuffer.A buffer, which doesn't need reallocation of byte arrays, because it
reuses a single byte array.
An
InputStream that repeats provided bytes for given target byte count.A special ObjectInputStream that loads a class based on a specified
ClassLoader rather than the system default.An object that matches a Class name to a condition.
Deletes files but not directories as a visit proceeds.
Delegates to a URLConnection while implementing AutoCloseable.
Always returns
IOUtils.EOF to all attempts to read something from the stream.Throws an IOException on all attempts to write to the stream.
Always returns
IOUtils.EOF to all attempts to read something from it.Throws an IOException on all attempts to write with
ClosedWriter.close() implemented as a noop.Proxy stream that prevents the underlying input stream from being closed.
Proxy stream that prevents the underlying output stream from being closed.
Proxy reader that prevents the underlying reader from being closed.
Proxy writer that prevents the underlying writer from being closed.
Compare two files using a set of delegate file
Comparator.Defines operations for conditional file filters.
Defines package-private constants.
Copies a source directory to a target directory.
Deprecated.
Use IOUtils.
Provides counters for files, directories, and sizes, as a visit proceeds.
Counts files, directories, and sizes, as a visit proceeds.
Counts using a
BigInteger number.Counts files, directories, and sizes, as a visit proceeds, using BigInteger numbers.
Counts using a number.
Counts using a
long number.Counts files, directories, and sizes, as a visit proceeds, using long numbers.
Counts nothing.
Counts nothing.
Counts files, directories, and sizes, as a visit proceeds.
A decorating input stream that counts the number of bytes that have passed
through the stream so far.
A decorating output stream that counts the number of bytes that have passed
through the stream so far.
Counts files, directories, and sizes, as a visit proceeds.
Compares two files using the default
File.compareTo(File) method.An output stream which will retain data in memory until a specified threshold is reached, and only then commit it to disk.
Builds a new
DeferredFileOutputStream instance.This class turns a Java FileFilter or FilenameFilter into an IO FileFilter.
An object that configures how to delete a file.
Deletes files and directories as a visit proceeds.
Data written to this stream is forwarded to a stream that has been associated with this thread.
Forwards data to a stream that has been associated with this thread.
Compare two files using the
File.isDirectory() method.This filter accepts
Files that are directories.A
DirectoryStream.Filter that delegates to a PathFilter.Deprecated.
Apache Commons IO no longer uses this class.
CancelException is thrown in DirectoryWalker to cancel the current
processing.
This filter accepts files or directories that are empty.
Helps with different endian systems.
Erases
IOException for the compiler but still throws that exception at runtime.Compare the file name extensions for order
(see
FilenameUtils.getExtension(String)).A file filter that always returns false.
Receives events of file system modifications.
Convenience
FileAlterationListener implementation that does nothing.A runnable that spawns a monitoring thread triggering any
registered
FileAlterationObserver at a specified interval.FileAlterationObserver represents the state of files below a root directory,
checking the file system and notifying listeners of create, change or
delete events.
Deprecated.
Keeps track of files awaiting deletion, and deletes them when an associated
marker object is reclaimed by the garbage collector.
Inner class which acts as the reference for a file pending deletion.
Strategy for deleting files.
Force file deletion strategy.
The state of a file or directory, capturing the following
File attributes at a point in time.Accepts only an exact
File object match.Indicates that a file already exists.
This filter accepts
Files that are files (not directories).Useful utilities for working with file filters.
General file name and file path manipulation utilities.
Abstracts an OS' file system details, currently supporting the single use case of converting a file name String to a
legal file name with
FileSystem.toLegalFileName(String, char).Helps to work with
FileSystemProvider.Deprecated.
As of 2.6 deprecated without replacement.
Helps use
FileTime and interoperate Date and NTFS times.General file manipulation utilities.
Writer of files that allows the encoding to be set.
Builds a new
FileWriterWithEncoding instance.Abstract class for writing filtered character streams to a
Collection of writers.A
ClassNameMatcher that matches on full class names.Dumps data in hexadecimal format.
This filter accepts
Files that are hidden.An
InputStream that infinitely repeats the provided bytes.Component-wide operations on Apache Commons IO.
Like
BaseStream but throws IOException.Abstracts an
IOBaseStream implementation.Like
BiConsumer but throws IOException.Like
BiFunction but throws IOException.Like
BinaryOperator but throws IOException.Enumeration of IO case sensitivity.
Like
Comparator but throws IOException.Like
Consumer but throws IOException.An IOException based on a list of Throwable causes.
Deprecated.
(since 2.5) use
IOException insteadAn interface which brings the FileFilter, FilenameFilter, and PathFilter interfaces together.
Like
Function but throws IOException.A IOException associated with a source index.
Like
Iterator but throws IOException.Adapts an
Iterator as an IOIterator.Like
Predicate but throws IOException.Represents a function that accepts four arguments and produces a result.
Like
Runnable but throws IOException.Like
Spliterator but throws IOException.Adapts an
Spliterator as an IOSpliterator.Like
Stream but throws IOException.Keep this code package-private for now.
Like
Supplier but throws IOException.Like
BiConsumer but throws IOException.Represents a function that accepts three arguments and produces a result.
Like
UnaryOperator but throws IOException.General IO stream manipulation utilities.
Compare the last modified date/time of two files for order
(see
FileUtils.lastModifiedUnchecked(File)).An Iterator over the lines in a
Reader.FileWriter that will create and honor lock files to allow simple cross thread file lock handling.
Builds a new
LockableFileWriter instance.
File filter for matching files containing a "magic number".
This is an alternative to
ByteArrayInputStream
which removes the synchronization overhead for non-concurrent
access; as such this class is not thread-safe.An
InputStream that utilizes memory mapped files to improve performance.Builds a new
MemoryMappedFileInputStream instance.This class is an example for using an
ObservableInputStream.Builds a new
MessageDigestCalculatingInputStream instance.Maintains the message digest.
Compare the names of two files for order (see
File.getName()).Filters file names for a certain name.
A noop path visitor.
This filter produces a logical NOT of the filters specified.
Appends all data to the famous /dev/null.
A functional, light weight
InputStream that emulates
a stream of a specified size.Never writes data.
Never prints data.
A functional, light weight
Reader that emulates
a reader of a specified size.Never writes data.
The
ObservableInputStream allows, that an InputStream may be consumed by other receivers, apart from the
thread, which is reading it.Abstracts observer callback for
ObservableInputStreams.A
FileFilter providing conditional OR logic across a list of file filters.Accepts only an exact
Path object match.Compare the path of two files for order (see
File.getPath()).A filter for
Paths.NIO Path utilities.
Private worker/holder that computes and tracks relative path names and their equality.
A
FileVisitor typed to a Path.A file filter backed by a path visitor.
Implements a buffered input stream, which allows to peek into the buffers first bytes.
Filters file names for a certain prefix.
A Proxy stream collection which acts as expected, that is it passes the method calls on to the proxied streams and
doesn't change which methods are being called.
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.
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.
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.
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.
Simple alternative to JDK
PipedInputStream; queue input stream provides what's written in queue output stream.Builds a new
QueueInputStream instance.Simple alternative to JDK
PipedOutputStream; queue input stream provides what's written in queue
output stream.Streams data from a
RandomAccessFile starting at its current position.Builds a new
RandomAccessFileInputStream instance.Access modes and factory methods for
RandomAccessFile.Works on RandomAccessFile.
Implements
InputStream to asynchronously read ahead from an underlying input stream when a specified amount of data has been read from the current
buffer.Builds a new
ReadAheadInputStream instance.InputStream implementation that reads a character stream from a Reader and transforms it to a byte stream using a specified charset encoding.Builds a new
ReaderInputStream instance.Filters files using supplied regular expression(s).
A
ClassNameMatcher that uses regular expressions.Reads lines in a file reversely (similar to a BufferedReader, but starting at the last line).
Builds a new
ReversedLinesFileReader instance.Reverses the result of comparing two
File objects using the delegate Comparator.Provides the contents of multiple
Readers in sequence.Wraps a
FileTime and allows it to be Serializable.A
SimpleFileVisitor typed to a Path.Compare the length/size of two files for order (see
File.length() and FileUtils.sizeOfDirectory(File)).Filters files based on size, can filter either smaller files or
files equal to or larger than a given threshold.
Defines the standard delete options.
Wraps and presents a stream as a closable iterator resource that automatically closes itself when reaching the end
of stream.
Writer implementation that outputs to a StringBuilder.Filters files based on the suffix (what the file name ends with).
DataInput for systems relying on little endian data formats.
This filter accepts
Files that are symbolic links.An input stream decorator that tags potential exceptions so that the
stream that caused the exception can easily be identified.
An
IOException decorator that adds a serializable tag to the
wrapped exception.An output stream decorator that tags potential exceptions so that the
stream that caused the exception can easily be identified.
A reader decorator that tags potential exceptions so that the reader that caused the exception can easily be
identified.
A writer decorator that tags potential exceptions so that the
reader that caused the exception can easily be identified.
Simple implementation of the UNIX "tail -f" functionality.
Builds a
Tailer with default values.Bridges random access to a
RandomAccessFile.Bridges access to a resource for random access, normally a file.
A tailable resource like a file.
A tailable for a file
Path.Listener for events from a
Tailer.TailerListener Adapter.InputStream proxy that transparently writes a copy of all bytes read
from the proxied stream to a given OutputStream.
Classic splitter of
OutputStream.Reader proxy that transparently writes a copy of all characters read from the proxied reader to a given Reader.
Classic splitter of
Writer.Monitors a thread, interrupting it if it reaches the specified timeout.
Helps work with threads.
An output stream which triggers an event when a specified number of bytes of data have been written to it.
An observer with timestamps.
A file filter that always returns true.
Unchecks calls by throwing
UncheckedIOException instead of IOException.Builds a new
UncheckedBufferedReader instance.Builds a new
UncheckedFilterInputStream instance.Builds a new
UncheckedFilterOutputStream instance.Builds a new
UncheckedFilterReader instance.Builds a new
UncheckedFilterWriter instance.Helps use lambdas that throw
IOException rethrow as UncheckedIOException.A filtering input stream that ensures the content will have UNIX-style line endings, LF.
Package-private factory for
UnsupportedOperationException to provide messages with consistent formatting.An unsynchronized version of
BufferedInputStream, not thread-safe.Builds a new
UnsynchronizedBufferedInputStream instance.This is an alternative to
ByteArrayInputStream which removes the synchronization overhead for non-concurrent access; as such this class is
not thread-safe.Builds a new
UnsynchronizedByteArrayInputStream instance.Implements a version of
AbstractByteArrayOutputStream without any concurrent thread safety.Builds a new
UnsynchronizedByteArrayOutputStream instance.An unsynchronized version of
FilterInputStream, not thread-safe.Builds a new
UnsynchronizedFilterInputStream instance.An
ObjectInputStream that's restricted to deserialize
a limited set of classes.A
ClassNameMatcher that uses simplified regular expressions
provided by FilenameUtils.wildcardMatchFilters files using the supplied wildcards.
Builds a new
WildcardFileFilter instance.Deprecated.
Use WildcardFileFilter.
A filtering input stream that ensures the content will have Windows line endings, CRLF.
OutputStream implementation that transforms a byte stream to a character stream using a specified charset encoding and writes the resulting stream to
a Writer.Builds a new
WriterOutputStream instance.Character stream that handles all the necessary Voodoo to figure out the charset encoding of the XML document within the stream.
Builds a new
XmlStreamWriter instance.The XmlStreamReaderException is thrown by the XmlStreamReader constructors if
the charset encoding can not be determined according to the XML 1.0
specification and RFC 3023.
Character stream that handles all the necessary work to figure out the charset encoding of the XML document written to the stream.
Builds a new
XmlStreamWriter instance.