How to use

findAvailableUdpPorts

method

in

org.springframework.util.SocketUtils

/**
 * Find the requested number of available UDP ports, each randomly selected
 * from the range [{@value #PORT_RANGE_MIN}, {@value #PORT_RANGE_MAX}].
 * @param numRequested the number of available ports to find
 * @return a sorted set of available UDP port numbers
 * @throws IllegalStateException if the requested number of available ports could not be found
 */
public static SortedSet<Integer> findAvailableUdpPorts(int numRequested) {
  return findAvailableUdpPorts(numRequested, PORT_RANGE_MIN, PORT_RANGE_MAX);
}

/**
 * Find the requested number of available UDP ports, each randomly selected
 * from the range [{@value #PORT_RANGE_MIN}, {@value #PORT_RANGE_MAX}].
 * @param numRequested the number of available ports to find
 * @return a sorted set of available UDP port numbers
 * @throws IllegalStateException if the requested number of available ports could not be found
 */
public static SortedSet<Integer> findAvailableUdpPorts(int numRequested) {
  return findAvailableUdpPorts(numRequested, PORT_RANGE_MIN, PORT_RANGE_MAX);
}

private void findAvailableUdpPorts(int numRequested, int minPort, int maxPort) {
  SortedSet<Integer> ports = SocketUtils.findAvailableUdpPorts(numRequested, minPort, maxPort);
  assertAvailablePorts(ports, numRequested, minPort, maxPort);
}
private void assertPortInRange(int port, int minPort, int maxPort) {

private void findAvailableUdpPorts(int numRequested) {
  SortedSet<Integer> ports = SocketUtils.findAvailableUdpPorts(numRequested);
  assertAvailablePorts(ports, numRequested, PORT_RANGE_MIN, PORT_RANGE_MAX);
}

/**
 * Find the requested number of available UDP ports, each randomly selected
 * from the range [{@value #PORT_RANGE_MIN}, {@value #PORT_RANGE_MAX}].
 * @param numRequested the number of available ports to find
 * @return a sorted set of available UDP port numbers
 * @throws IllegalStateException if the requested number of available ports could not be found
 */
public static SortedSet<Integer> findAvailableUdpPorts(int numRequested) {
  return findAvailableUdpPorts(numRequested, PORT_RANGE_MIN, PORT_RANGE_MAX);
}

/**
 * Find the requested number of available UDP ports, each randomly selected
 * from the range [{@value #PORT_RANGE_MIN}, {@value #PORT_RANGE_MAX}].
 * @param numRequested the number of available ports to find
 * @return a sorted set of available UDP port numbers
 * @throws IllegalStateException if the requested number of available ports could not be found
 */
public static SortedSet<Integer> findAvailableUdpPorts(int numRequested) {
  return findAvailableUdpPorts(numRequested, PORT_RANGE_MIN, PORT_RANGE_MAX);
}