com.sun.grizzly.util
Class Utils

java.lang.Object
  com.sun.grizzly.util.Utils

public class Utils
extends Object

Class contains set of useful operations commonly used in the framework

Author:

Alexey Stashok, Jean-Francois Arcand

Constructor Summary

Utils()

Method Summary

static byte[]	extractBytes(ByteBuffer byteBuffer, byte startByte, byte endByte) Return the bytes contained between the startByte and the endByte.
static int	findBytes(ByteBuffer byteBuffer, byte[] b) Specialized utility method: find a sequence of lower case bytes inside a ByteBuffer.
static int	readWithTemporarySelector(SelectableChannel channel, ByteBuffer byteBuffer, long readTimeout) Method reads data from SelectableChannel to ByteBuffer.

Methods inherited from class java.lang.Object

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

Constructor Detail

Utils

public Utils()

Method Detail

readWithTemporarySelector

public static int readWithTemporarySelector(SelectableChannel channel,
                                            ByteBuffer byteBuffer,
                                            long readTimeout)
                                     throws IOException

Method reads data from SelectableChannel to ByteBuffer. If data is not immediately available - channel will be reregistered on temporary Selector and wait maximum readTimeout milliseconds for data.

Parameters:

channel - SelectableChannel to read data from

byteBuffer - ByteBuffer to store read data to

readTimeout - maximum time in millis operation will wait for incoming data

Returns:

number of bytes were read

Throws:

IOException - if any error was occured during read

IOException

extractBytes

public static byte[] extractBytes(ByteBuffer byteBuffer,
                                  byte startByte,
                                  byte endByte)
                           throws IOException

Return the bytes contained between the startByte and the endByte. The ByteBuffer will be left in the state it was before invoking that method, meaning its position and limit will be the same.

Parameters:

byteBuffer - The bytes.

startByte - the first byte to look for

endByte - the second byte to look for

Returns:

The byte[] contained between startByte and endByte

Throws:

IOException

findBytes

public static int findBytes(ByteBuffer byteBuffer,
                            byte[] b)

Specialized utility method: find a sequence of lower case bytes inside a ByteBuffer.