Package org.apache.catalina.util

Class IOTools

java.lang.Object

org.apache.catalina.util.IOTools

public class IOTools
extends Object

Contains commonly needed I/O-related methods

Author:

Dan Sandberg

Field Summary

Fields

Modifier and Type	Field	Description
protected static final int	DEFAULT_BUFFER_SIZE

Method Summary

Modifier and Type	Method	Description
static void	flow(InputStream is, OutputStream os)	Read input from input stream and write it to output stream until there is no more input from input stream using a new buffer of the default size (4 KiB).
static void	flow(Reader reader, Writer writer)	Read input from reader and write it to writer until there is no more input from reader.
static void	flow(Reader reader, Writer writer, char[] buf)	Read input from reader and write it to writer until there is no more input from reader.
static int	readFully(InputStream is, byte[] buf)	Read until EOF or the buffer is filled.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

DEFAULT_BUFFER_SIZE

protected static final int DEFAULT_BUFFER_SIZE

See Also:

• Constant Field Values

Method Details

flow

public static void flow(Reader reader,
 Writer writer,
 char[] buf)
                 throws IOException

Read input from reader and write it to writer until there is no more input from reader.

Parameters:

reader - the reader to read from.

writer - the writer to write to.

buf - the char array to use as a buffer

Throws:

IOException - IO error

flow

public static void flow(Reader reader,
 Writer writer)
                 throws IOException

Read input from reader and write it to writer until there is no more input from reader.

Parameters:

reader - the reader to read from.

writer - the writer to write to.

Throws:

IOException - IO error

See Also:

• flow(Reader, Writer, char[])

flow

public static void flow(InputStream is,
 OutputStream os)
                 throws IOException

Read input from input stream and write it to output stream until there is no more input from input stream using a new buffer of the default size (4 KiB).

Parameters:

is - input stream the input stream to read from.

os - output stream the output stream to write to.

Throws:

IOException - If an I/O error occurs during the copy

readFully

public static int readFully(InputStream is,
 byte[] buf)
                     throws IOException

Read until EOF or the buffer is filled.

Parameters:

is - The source to read from

buf - The buffer to write to

Returns:

The number of bytes read

Throws:

IOException - If an I/O error occurs during the read