org.apache.hadoop.util
Class MachineList

java.lang.Object
  org.apache.hadoop.util.MachineList

public class MachineList
extends Object

Container class which holds a list of ip/host addresses and answers membership queries. Accepts list of ip addresses, ip addreses in CIDR format and/or host addresses.

Nested Class Summary

static class

MachineList.InetAddressFactory InetAddressFactory is used to obtain InetAddress from host.

Field Summary

static org.apache.commons.logging.Log

LOG

Constructor Summary

MachineList(Collection<String> hostEntries)

MachineList(Collection<String> hostEntries, MachineList.InetAddressFactory addressFactory)
Accepts a collection of ip/cidr/host addresses

MachineList(String hostEntries)

Method Summary

Collection<String>	getCollection() returns the contents of the MachineList as a Collection This can be used for testing
boolean	includes(String ipAddress) Accepts an ip address and return true if ipAddress is in the list

Methods inherited from class java.lang.Object

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

Field Detail

LOG

public static final org.apache.commons.logging.Log LOG

Constructor Detail

MachineList

public MachineList(String hostEntries)

Parameters:

hostEntries - comma separated ip/cidr/host addresses

MachineList

public MachineList(Collection<String> hostEntries)

Parameters:

hostEntries - collection of separated ip/cidr/host addresses

MachineList

public MachineList(Collection<String> hostEntries,
                   MachineList.InetAddressFactory addressFactory)

Accepts a collection of ip/cidr/host addresses

Parameters:

hostEntries -

addressFactory - addressFactory to convert host to InetAddress

Method Detail

includes

public boolean includes(String ipAddress)

Accepts an ip address and return true if ipAddress is in the list

Parameters:

ipAddress -

Returns:

true if ipAddress is part of the list

getCollection

public Collection<String> getCollection()

returns the contents of the MachineList as a Collection This can be used for testing

Returns:

contents of the MachineList