edu.UCL.satin.impl.localhost
Class SimpleLocalHost

java.lang.Object
  edu.UCL.satin.arch.components.Component
      edu.UCL.satin.impl.localhost.SimpleLocalHost

All Implemented Interfaces:

ComponentFacet, ComponentListener, Facet, HasLocation, LocalHost

public class SimpleLocalHost

extends Component

implements LocalHost, ComponentListener, HasLocation

SimpleLocalHost is an extremely simple LocalHost implementation. It uses a random integer to denote the host identity. The ID of this component is STN:RANDOMHOSTID It automatically attaches itself to any advertiser. It also stores a series of ip addresses for the local host, separated by commas

Author:

Stefanos Zachariadis

Field Summary

private java.lang.String	address
private java.lang.String	id
private Location	ip

Fields inherited from class edu.UCL.satin.arch.components.Component

immutable, properties

Fields inherited from interface edu.UCL.satin.arch.facets.ComponentFacet

DISABLED, ENABLED

Constructor Summary

SimpleLocalHost()
Creates a new Host Identification component

Method Summary

void	componentFound(Component c) This method is called by a Discovery service if a new component that matches a given query is found.
java.lang.String	getHostID()
Location	getLocation()
java.lang.Object	getMessage()
boolean	isEnabled() Returns whether this component is enabled/active or not.
void	setAddress(java.lang.String address)
void	setEnabled(boolean b) Activates or deactivates this component (if applicable).

Methods inherited from class edu.UCL.satin.arch.components.Component

addAttribute, construct, destroy, getAttribute, getProperties, hasAttribute, match, toString

Methods inherited from class java.lang.Object

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

Field Detail

id

private final java.lang.String id

address

private java.lang.String address

ip

private Location ip

Constructor Detail

SimpleLocalHost

public SimpleLocalHost()

Creates a new Host Identification component

Method Detail

isEnabled

public boolean isEnabled()

Description copied from class: Component

Returns whether this component is enabled/active or not. Note that unless overloaded, the component is assumed to always be enabled

Specified by:

isEnabled in interface ComponentFacet

Overrides:

isEnabled in class Component

Returns:

setEnabled

public void setEnabled(boolean b)

Description copied from class: Component

Activates or deactivates this component (if applicable). Note that unless overloaded, the component is assumed to always be enabled.

Specified by:

setEnabled in interface ComponentFacet

Overrides:

setEnabled in class Component

Parameters:

b -

getHostID

public java.lang.String getHostID()

Specified by:

getHostID in interface LocalHost

Returns:

the host's identifier

getMessage

public java.lang.Object getMessage()

setAddress

public void setAddress(java.lang.String address)

componentFound

public void componentFound(Component c)

Description copied from interface: ComponentListener

This method is called by a Discovery service if a new component that matches a given query is found.

Specified by:

componentFound in interface ComponentListener

Parameters:

c - The component found

getLocation

public Location getLocation()

Specified by:

getLocation in interface HasLocation