com.goldencode.p2j.main

Class HostsManager

java.lang.Object

com.goldencode.p2j.main.HostsManager

public class HostsManager
extends java.lang.Object

The host manager defines methods to add host and to get port name.

Field Summary

Fields

Modifier and Type	Field and Description
private java.util.Map<java.lang.String,java.lang.Integer>	hosts Dynamic hosts map of registered brokers agents
private static java.lang.String	HOSTS_FILE_PATH The path to the hosts file
private java.lang.String	hostsFilePath Path to the hosts file
private java.util.Map<java.lang.String,java.util.concurrent.BlockingQueue<WebAllocatedResources>>	hostsResources Map a host name or its ip address to the web client resource queue
private static HostsManager	instance The host manager instance
private java.util.concurrent.atomic.AtomicInteger	nextRegisteredHost Next registered broker agent
private java.util.Map<java.lang.String,java.net.InetAddress>	resolvedHosts Dynamic hosts map of registered brokers agents

Constructor Summary

Constructors

Modifier	Constructor and Description
private	HostsManager(java.lang.String file) Creates the hosts manager.

Method Summary

Modifier and Type	Method and Description
void	addHost(java.lang.String hostNameOrIpAddress, java.util.concurrent.BlockingQueue<WebAllocatedResources> resourceQueue) Add new host.
java.util.concurrent.BlockingQueue<WebAllocatedResources>	getHostResource(java.lang.String hostNameOrIpAddress) Getter for the queue of web resources to be allocated to the clients.
static HostsManager	getInstance() The instance method to create the hosts manager instance.
private java.lang.String	getPortName(java.lang.String prefix, int from, java.net.InetAddress hostInetAddress, int port) Represents a well-defined mapping from host ports numbers to their names.
java.lang.String	getPortName(java.lang.String prefix, int from, java.lang.String host, int port) Represents a well-defined mapping from host ports numbers to their names.
java.net.InetAddress	getResolvedHost(java.lang.String host) Get the resolved host name or IP address.

Methods inherited from class java.lang.Object

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

Field Detail

HOSTS_FILE_PATH

private static final java.lang.String HOSTS_FILE_PATH

The path to the hosts file

See Also:

Constant Field Values

instance

private static HostsManager instance

The host manager instance

hosts

private final java.util.Map<java.lang.String,java.lang.Integer> hosts

Dynamic hosts map of registered brokers agents

resolvedHosts

private final java.util.Map<java.lang.String,java.net.InetAddress> resolvedHosts

Dynamic hosts map of registered brokers agents

nextRegisteredHost

private final java.util.concurrent.atomic.AtomicInteger nextRegisteredHost

Next registered broker agent

hostsFilePath

private final java.lang.String hostsFilePath

Path to the hosts file

hostsResources

private final java.util.Map<java.lang.String,java.util.concurrent.BlockingQueue<WebAllocatedResources>> hostsResources

Map a host name or its ip address to the web client resource queue

Constructor Detail

HostsManager

private HostsManager(java.lang.String file)

Creates the hosts manager.

Parameters:

file - The hosts file path

Method Detail

getInstance

public static HostsManager getInstance()

The instance method to create the hosts manager instance.

Returns:

The hosts manager

addHost

public void addHost(java.lang.String hostNameOrIpAddress,
                    java.util.concurrent.BlockingQueue<WebAllocatedResources> resourceQueue)
             throws java.net.UnknownHostException

Add new host.

Parameters:

hostNameOrIpAddress - The host network address

resourceQueue - The queue of web resources to be allocated to the clients.

Throws:

java.net.UnknownHostException

getHostResource

public java.util.concurrent.BlockingQueue<WebAllocatedResources> getHostResource(java.lang.String hostNameOrIpAddress)

Getter for the queue of web resources to be allocated to the clients.

Parameters:

hostNameOrIpAddress - The host network address

Returns:

The queue of web resources to be allocated to the clients.

getResolvedHost

public java.net.InetAddress getResolvedHost(java.lang.String host)

Get the resolved host name or IP address.

Parameters:

host - The host name.

Returns:

The resolved host name or IP address

getPortName

public java.lang.String getPortName(java.lang.String prefix,
                                    int from,
                                    java.lang.String host,
                                    int port)

Represents a well-defined mapping from host ports numbers to their names.

Parameters:

prefix - The client prefix

from - The beginning port number from the given port range

host - The host

port - The port number

Returns:

The port name

getPortName

private java.lang.String getPortName(java.lang.String prefix,
                                     int from,
                                     java.net.InetAddress hostInetAddress,
                                     int port)

Represents a well-defined mapping from host ports numbers to their names.

Parameters:

prefix - The client prefix

from - The beginning port number from the given port range

hostInetAddress - The host IP4 address

port - The port number

Returns:

The port name