org.restlet.ext.nio.internal.util

Class NioUtils

java.lang.Object

org.restlet.ext.nio.internal.util.NioUtils

public class NioUtils
extends Object

Utility methods for NIO processing.

Author:

Jerome Louvel

Method Summary

Modifier and Type	Method and Description
static int	copy(ByteBuffer sourceBuffer, ByteBuffer targetBuffer, long maxCopied) Writes the source buffer to the target buffer, up to a maximum number of bytes.
static void	copy(FileChannel fileChannel, WritableByteChannel writableChannel) Writes the representation to a byte channel.
static void	copy(ReadableByteChannel readableChannel, OutputStream outputStream) Writes a NIO readable channel to a BIO output stream.
static void	waitForState(SelectableChannel selectableChannel, int operations) Waits for the given channel to be ready for a specific operation.

Methods inherited from class java.lang.Object

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

Method Detail

copy

public static int copy(ByteBuffer sourceBuffer,
                       ByteBuffer targetBuffer,
                       long maxCopied)

Writes the source buffer to the target buffer, up to a maximum number of bytes.

Parameters:

sourceBuffer - The source buffer.

targetBuffer - The target buffer.

maxCopied - The maximum number of bytes copied by this call or 0 for unlimited length.

Returns:

The number of bytes added to the target buffer.

copy

public static void copy(FileChannel fileChannel,
                        WritableByteChannel writableChannel)
                 throws IOException

Writes the representation to a byte channel. Optimizes using the file channel transferTo method.

Parameters:

fileChannel - The readable file channel.

writableChannel - A writable byte channel.

Throws:

IOException

copy

public static void copy(ReadableByteChannel readableChannel,
                        OutputStream outputStream)
                 throws IOException

Writes a NIO readable channel to a BIO output stream.

Parameters:

readableChannel - The readable channel.

outputStream - The output stream.

Throws:

IOException

waitForState

public static void waitForState(SelectableChannel selectableChannel,
                                int operations)
                         throws IOException

Waits for the given channel to be ready for a specific operation.

Parameters:

selectableChannel - The channel to monitor.

operations - The operations to be ready to do.

Throws:

IOException