Package org.jgroups.util

Class ResourceManager

java.lang.Object

org.jgroups.util.ResourceManager

public final class ResourceManager
extends java.lang.Object

Manages resources such as multicast addresses and multicast ports, and TCP ports. This class is mainly used for running unit tests in parallel (TestNG) and preventing clusters intended to be separate from joining each other.

Author:

Bela Ban

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	ResourceManager.IpAddressRep

Method Summary

Modifier and Type	Method	Description
static java.lang.String	getNextMulticastAddress()	Returns the next available multicast address, e.g.
static short	getNextMulticastPort(java.net.InetAddress bind_addr)
static int	getNextTcpPort(java.net.InetAddress bind_addr)
protected static int	getNextTCPPort(java.net.InetAddress bind_addr, int start_port)
static java.util.List<java.lang.Integer>	getNextTcpPorts(java.net.InetAddress bind_addr, int num_requested_ports)
static java.lang.String	getUniqueClusterName()
static java.lang.String	getUniqueClusterName(java.lang.String base_name)
static void	main(java.lang.String[] args)

Methods inherited from class java.lang.Object

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

Method Detail

getNextMulticastAddress

public static java.lang.String getNextMulticastAddress()

Returns the next available multicast address, e.g. "228.1.2.3". This class is a JVM singleton

Returns:

getNextMulticastPort

public static short getNextMulticastPort(java.net.InetAddress bind_addr)
                                  throws java.lang.Exception

Throws:

java.lang.Exception

getNextTcpPorts

public static java.util.List<java.lang.Integer> getNextTcpPorts(java.net.InetAddress bind_addr,
                                                                int num_requested_ports)
                                                         throws java.lang.Exception

Throws:

java.lang.Exception

getNextTcpPort

public static int getNextTcpPort(java.net.InetAddress bind_addr)
                          throws java.lang.Exception

Throws:

java.lang.Exception

getNextTCPPort

protected static int getNextTCPPort(java.net.InetAddress bind_addr,
                                    int start_port)
                             throws java.lang.Exception

Throws:

java.lang.Exception

getUniqueClusterName

public static java.lang.String getUniqueClusterName(java.lang.String base_name)

getUniqueClusterName

public static java.lang.String getUniqueClusterName()

main

public static void main(java.lang.String[] args)
                 throws java.lang.Exception

Throws:

java.lang.Exception