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java.lang.Objectnaga.NIOUtils
public class NIOUtils
A collection of utilites used by various classes.
Method Summary | |
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static void |
cancelKeySilently(java.nio.channels.SelectionKey key)
Silently cancel a key. |
static void |
closeChannelSilently(java.nio.channels.Channel channel)
Silently close a channel. |
static void |
closeKeyAndChannelSilently(java.nio.channels.SelectionKey key,
java.nio.channels.Channel channel)
Silently close both a key and a channel. |
static java.nio.ByteBuffer |
getByteBufferFromPacketSize(int headerSize,
int valueToEncode,
boolean bigEndian)
Creates a byte buffer with a given length with an encoded value, in either big or little endian encoding (i.e. |
static int |
getPacketSizeFromByteBuffer(java.nio.ByteBuffer header,
boolean bigEndian)
Converts a value in a header buffer encoded in either big or little endian encoding. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Method Detail |
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public static void closeKeyAndChannelSilently(java.nio.channels.SelectionKey key, java.nio.channels.Channel channel)
key
- the key to cancel, may be null.channel
- the channel to close, may be null.public static java.nio.ByteBuffer getByteBufferFromPacketSize(int headerSize, int valueToEncode, boolean bigEndian)
headerSize
- the header size in bytes. 1-4.valueToEncode
- the value to encode, 0 <= value < 2^(headerSize * 8)bigEndian
- if the encoding is big endian or not.
java.lang.IllegalArgumentException
- if the value is out of range for the given header size.public static int getPacketSizeFromByteBuffer(java.nio.ByteBuffer header, boolean bigEndian)
Note that trying to decode a value larger than 2^31 - 2 is not supported.
header
- the header to encode from.bigEndian
- if the encoding is big endian or not.
public static void closeChannelSilently(java.nio.channels.Channel channel)
channel
- the channel to close, may be null.public static void cancelKeySilently(java.nio.channels.SelectionKey key)
key
- the key to cancel, may be null.
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