eu.hgross.blaubot.core

Class ServerConnectionManager

java.lang.Object

eu.hgross.blaubot.core.LifecycleListenerAdapter

eu.hgross.blaubot.core.ServerConnectionManager

All Implemented Interfaces:

ILifecycleListener

public class ServerConnectionManager
extends LifecycleListenerAdapter

Manages the connection to the BlaubotServer (if set). It makes use of the BlaubotChannelManager to listen and send admin messages to other devices. It operates in two modes: Client and Master (as the BlaubotChannelManager). It always sends admin messages if a connection to the server is available or down. In client mode it listens to RelayAdminMessages and sends them to the available server connection (if any). In server mode it listens to the Available/Down messages and collects possible connections to the server as there could be more than just one.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	ServerConnectionManager.BlaubotServerRelayConnection A relay connection is a connection that uses admin messages to transport bytes from A to C using an intermediate participant B (mediator).

Constructor Summary

Constructors

Constructor and Description
ServerConnectionManager(BlaubotChannelManager channelManager, IBlaubotDevice ownDevice, BlaubotConnectionManager mainBlaubotConnectionManager)

Method Summary

Modifier and Type	Method and Description
java.util.List<IBlaubotConnection>	getConnectionsToServer()
BlaubotKingdomConnection	getCurrentlyUsedServerConnection()
BlaubotServerConnector	getServerConnector()
void	onConnected() Triggered when the Blaubot instance becomes part of a blaubot kingdom.
void	onDeviceLeft(IBlaubotDevice blaubotDevice) Triggered when an IBlaubotDevice left the blaubot kingdom.
void	onDisconnected() Triggered when the Blaubot instance is no longer part of a blaubot kingdom.
void	onKingDeviceChanged(IBlaubotDevice oldKing, IBlaubotDevice newKing) Triggered when the king device was changed.
void	setMaster(boolean isMaster) Sets whether this manager operates in master mode or not
void	setServerConnector(BlaubotServerConnector serverConnector) sets the server connector

Methods inherited from class eu.hgross.blaubot.core.LifecycleListenerAdapter

onDeviceJoined, onPrinceDeviceChanged

Methods inherited from class java.lang.Object

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

Constructor Detail

ServerConnectionManager

public ServerConnectionManager(BlaubotChannelManager channelManager,
                               IBlaubotDevice ownDevice,
                               BlaubotConnectionManager mainBlaubotConnectionManager)

Parameters:

channelManager - the main blaubot channel manager

ownDevice - our own device

mainBlaubotConnectionManager - the main blaubot connection manager used by the blaubot instance itself

Method Detail

setServerConnector

public void setServerConnector(BlaubotServerConnector serverConnector)

sets the server connector

Parameters:

serverConnector - the connector

getServerConnector

public BlaubotServerConnector getServerConnector()

Returns:

the serverConnector or null, if never set by the user

onConnected

public void onConnected()

Description copied from interface: ILifecycleListener

Triggered when the Blaubot instance becomes part of a blaubot kingdom.

Specified by:

onConnected in interface ILifecycleListener

Overrides:

onConnected in class LifecycleListenerAdapter

onDisconnected

public void onDisconnected()

Description copied from interface: ILifecycleListener

Triggered when the Blaubot instance is no longer part of a blaubot kingdom.

Specified by:

onDisconnected in interface ILifecycleListener

Overrides:

onDisconnected in class LifecycleListenerAdapter

onDeviceLeft

public void onDeviceLeft(IBlaubotDevice blaubotDevice)

Description copied from interface: ILifecycleListener

Triggered when an IBlaubotDevice left the blaubot kingdom.

Specified by:

onDeviceLeft in interface ILifecycleListener

Overrides:

onDeviceLeft in class LifecycleListenerAdapter

Parameters:

blaubotDevice - the device that just left

onKingDeviceChanged

public void onKingDeviceChanged(IBlaubotDevice oldKing,
                                IBlaubotDevice newKing)

Description copied from interface: ILifecycleListener

Triggered when the king device was changed. Both params may be null, if there was no king before or is no king now.

Specified by:

onKingDeviceChanged in interface ILifecycleListener

Overrides:

onKingDeviceChanged in class LifecycleListenerAdapter

Parameters:

oldKing - the old king

newKing - the new king

setMaster

public void setMaster(boolean isMaster)

Sets whether this manager operates in master mode or not

Parameters:

isMaster - true iff operating as master

getCurrentlyUsedServerConnection

public BlaubotKingdomConnection getCurrentlyUsedServerConnection()

Returns:

the currently USED server connection by the channel manager or null, if no connection exists

getConnectionsToServer

public java.util.List<IBlaubotConnection> getConnectionsToServer()

Returns:

list of blaubotconnections the server collected by the manager