zmq.util

Class Utils

java.lang.Object

zmq.util.Utils

public class Utils
extends Object

Method Summary

Modifier and Type	Method and Description
static byte[]	bytes(ByteBuffer buf)
static void	checkArgument(boolean expression, String errorMessage)
static void	checkArgument(boolean expression, Supplier<String> errorMessage)
static boolean	delete(File path)
static String	dump(ByteBuffer buffer, int pos, int limit)
static int	findOpenPort()
static Address	getPeerIpAddress(SocketChannel fd)
static byte[]	randomBytes(int length)
static int	randomInt()
static byte[]	realloc(byte[] src, int size)
static <T> T[]	realloc(Class<T> klass, T[] src, int size, boolean ended)
static void	unblockSocket(SelectableChannel... channels)
static String	unhash(int port) Finds a string whose hashcode is the number in input.

Methods inherited from class java.lang.Object

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

Method Detail

randomInt

public static int randomInt()

randomBytes

public static byte[] randomBytes(int length)

unhash

public static String unhash(int port)

Finds a string whose hashcode is the number in input.

Parameters:

port - the port to find String hashcode-equivalent of. Has to be positive or 0.

Returns:

a String whose hashcode is the number in input.

findOpenPort

public static int findOpenPort()
                        throws IOException

Throws:

IOException

unblockSocket

public static void unblockSocket(SelectableChannel... channels)
                          throws IOException

Throws:

IOException

realloc

public static <T> T[] realloc(Class<T> klass,
                              T[] src,
                              int size,
                              boolean ended)

bytes

public static byte[] bytes(ByteBuffer buf)

realloc

public static byte[] realloc(byte[] src,
                             int size)

delete

public static boolean delete(File path)

getPeerIpAddress

public static Address getPeerIpAddress(SocketChannel fd)

dump

public static String dump(ByteBuffer buffer,
                          int pos,
                          int limit)

checkArgument

public static void checkArgument(boolean expression,
                                 String errorMessage)

checkArgument

public static void checkArgument(boolean expression,
                                 Supplier<String> errorMessage)