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Following functions help you to :

  • Generate IP
  • Generate network mask
  • Find available UDP and TCP ports

HostIpMatching🔗

String hostIpMatching(String regex)

Return a local ip matching regex input or else InetAddress.getLocalHost().getHostAddress() if no ip matching the regex found

Returns :

  • Return a String representing an IP address matching the regex. For example "127.0.0.1"

Examples :

SpEL : ${#hostIpMatching("127.0.*")}

RandomNetworkMask🔗

String randomNetworkMask()

Constructs a random network mask matching regex ^\d{1,3}\.\d{1,3}\.\d{1,3}$.

Returns :

  • Returns a String representing a network mask. For example "145.242.119"

Examples :

SpEL : ${#randomNetworkMask()}

TcpPort🔗

int freeSystemPort()

Find a free port given by the undelying system.

Returns :

  • Returns an available TCP Port number

Examples :

SpEL : ${#freeSystemPort()}

int tcpPort()

Find an available TCP port randomly selected from the range [1024, 65535].

Returns :

  • Returns an available TCP Port number

Examples :

SpEL : ${#tcpPort()}

SortedSet tcpPorts(int num)

Find the requested number of available TCP ports, each randomly selected from the range [1024, 65535].

Returns :

  • Returns a sorted set of available TCP port numbers

Examples :

SpEL : ${#tcpPorts(2000)}

int tcpPortMin(int minPort)

Find an available TCP port randomly selected from the range [minPort, 65535].

Returns :

  • Returns an available TCP port number

Examples :

SpEL : ${#tcpPortMin(4455)}

int tcpPortMinMax(int minPort, int maxPort)

Find an available TCP port randomly selected from the range [minPort, maxPort].

Returns :

  • Returns an available TCP port number

Examples :

SpEL : ${#tcpPortMinMax(1400, 62335)}

SortedSet tcpPortsMinMax(int num, int minPort, int maxPort)

Find the requested number of available TCP ports, each randomly selected from the range [minPort, maxPort].

Returns :

  • Returns a sorted set of available TCP port numbers

Examples :

SpEL : ${#tcpPortsMinMax(420, 500, 1000)}

int tcpPortRandomRange(int range)

Find an available TCP port randomly selected from the range [minPort, maxPort].

Returns :

  • Returns an available TCP port number

Examples :

SpEL : ${#tcpPortRandomRange(120)}

SortedSet tcpPortsRandomRange(int num, int range)

Find the requested number of available TCP ports, each randomly selected from the range [minPort, maxPort].

Returns :

  • Returns a sorted set of available TCP port numbers

Examples :

SpEL : ${#tcpPortsRandomRange(120, 230)}

UdpPort🔗

int udpPort()

Find an available UDP port randomly selected from the range [1024, 65535].

Returns :

  • Returns an available UDP port number

Examples :

SpEL : ${#udpPort()}

SortedSet udpPorts(int num)

Find the requested number of available UDP ports, each randomly selected from the range [1024, 65535].

Returns :

  • Returns a sorted set of available UDP port numbers

Examples :

SpEL : ${#udpPorts(2500)}

int udpPortMin(int minPort)

Find an available UDP port randomly selected from the range [minPort, 65535].

Returns :

  • Returns an available UDP port number

Examples :

SpEL : ${#udpPortMin(2331)}

int udpPortMinMax(int minPort, int maxPort)

Find an available UDP port randomly selected from the range [minPort, maxPort].

Returns :

  • Returns an available UDP port number

Examples :

SpEL : ${#udpPortMinMax(250, 1544)}

SortedSet udpPortsMinMax(int num, int minPort, int maxPort)

Find the requested number of available UDP ports, each randomly selected from the range [minPort, maxPort].

Returns :

  • Returns a sorted set of available UDP port numbers

Examples :

SpEL : ${#udpPortsMinMax(342, 250, 1544)}

int udpPortRandomRange(int range)

Find an available UDP port randomly selected from the range [minPort, maxPort].

Returns :

  • Returns an available UDP port number

Examples :

SpEL : ${#udpPortRandomRange(152)}

SortedSet udpPortsRandomRange(int num, int range)

Find the requested number of available UDP ports, each randomly selected from the range [minPort, maxPort].

Returns :

  • Returns a sorted set of available UDP port numbers

Examples :

SpEL : ${#udpPortsRandomRange(152, 12)}