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alice.tuplemedium.runtime
Class Daemon  

java.lang.Object
  alice.tuplemedium.runtime.Daemon

All Implemented Interfaces:

java.lang.Runnable

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public class Daemon

extends java.lang.Object

implements java.lang.Runnable

Daemon class implement the basic behaviour of an TCP/IP infrastructure which listens for new tuple media clients, creates new tuple media, creates client request acceptors.

it's the basic component from which derives the infrastructure topology

the class has been designed as Singleton pattern: for each java VM only ONE Daemon could be installed

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Nested Class Summary
(package private)  class	Daemon.ServiceRequest

 

Field Summary
static boolean	active           indicates if the (only) service is actually running
private  java.lang.Object	arguments           boot daemon arguments
protected  java.util.HashMap	cores           current tuple media installed
protected static java.lang.String	daemonName           default name of the service
protected static int	DEFAULT_PORT           default listening port of the service
static Daemon	instance           reference to the instance representing the service running
private  java.net.InetAddress[]	localAddresses
protected  java.net.ServerSocket	mainSocket           listening socket
protected  java.lang.Class	mediumImpl           actual implementation of tuple medium
private  int	port

 

Constructor Summary

Daemon(java.lang.String daemonName_, java.lang.String mediumClassName, java.lang.Object args)           creates and installs a tuple media daemon

Daemon(java.lang.String daemonName_, java.lang.String mediumClassName, java.lang.Object args, int port)           creates and installs a tuple media daemon on a specific port

 

Method Summary
alice.tuplemedium.TupleCentreVMImpl	getCore(alice.tuplemedium.TupleCentreId tid)           gets the reference to a previosly created local tuple centre.
int	getPort()
private  void	initCore(int port_)
void	msgNewInspector(NewInspectorMsg msg, java.net.Socket socket, java.io.ObjectInputStream inStream, java.io.ObjectOutputStream outStream)           processing a new inspector request
void	msgNewUser(NewUserMsg msg, java.net.Socket socket, java.io.ObjectInputStream inStream, java.io.ObjectOutputStream outStream)           processing a new user request
void	msgPing(PingMsg msg, java.net.Socket socket, java.io.ObjectInputStream inStream, java.io.ObjectOutputStream outStream)           processing a ping request
boolean	onNewInspector(alice.tuplemedium.AgentId who)
boolean	onNewTupleCentre(alice.tuplemedium.AgentId who, java.lang.String tcName)
boolean	onNewUser(alice.tuplemedium.AgentId who)
protected  alice.tuplemedium.TupleCentreVMImpl	resolveCore(alice.tuplemedium.AgentId aid, java.lang.String tcName)           resolves a tuple medium reference givent its name.
void	run()           waiting and dispatching new users and inspectors request

 

Methods inherited from class java.lang.Object

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

 

Field Detail

DEFAULT_PORT

protected static final int DEFAULT_PORT

default listening port of the service

See Also:

Constant Field Values

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daemonName

protected static java.lang.String daemonName

default name of the service

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active

public static boolean active

indicates if the (only) service is actually running

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instance

public static Daemon instance

reference to the instance representing the service running

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mainSocket

protected java.net.ServerSocket mainSocket

listening socket

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port

private int port

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localAddresses

private java.net.InetAddress[] localAddresses

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cores

protected java.util.HashMap cores

current tuple media installed

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mediumImpl

protected java.lang.Class mediumImpl

actual implementation of tuple medium

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arguments

private java.lang.Object arguments

boot daemon arguments

Constructor Detail

Daemon

public Daemon(java.lang.String daemonName_,
              java.lang.String mediumClassName,
              java.lang.Object args)
       throws java.io.IOException,
              java.lang.ClassNotFoundException

creates and installs a tuple media daemon

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Daemon

public Daemon(java.lang.String daemonName_,
              java.lang.String mediumClassName,
              java.lang.Object args,
              int port)
       throws java.io.IOException,
              java.lang.ClassNotFoundException

creates and installs a tuple media daemon on a specific port

Method Detail

initCore

private void initCore(int port_)
               throws java.io.IOException

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getPort

public int getPort()

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run

public void run()

waiting and dispatching new users and inspectors request

Specified by:

run in interface java.lang.Runnable

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msgNewUser

public void msgNewUser(NewUserMsg msg,
                       java.net.Socket socket,
                       java.io.ObjectInputStream inStream,
                       java.io.ObjectOutputStream outStream)

processing a new user request

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msgNewInspector

public void msgNewInspector(NewInspectorMsg msg,
                            java.net.Socket socket,
                            java.io.ObjectInputStream inStream,
                            java.io.ObjectOutputStream outStream)

processing a new inspector request

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msgPing

public void msgPing(PingMsg msg,
                    java.net.Socket socket,
                    java.io.ObjectInputStream inStream,
                    java.io.ObjectOutputStream outStream)

processing a ping request

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resolveCore

protected alice.tuplemedium.TupleCentreVMImpl resolveCore(alice.tuplemedium.AgentId aid,
                                                          java.lang.String tcName)

resolves a tuple medium reference givent its name.

if the tuple medium is not found, then a new VM is created and registered with specified name

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getCore

public alice.tuplemedium.TupleCentreVMImpl getCore(alice.tuplemedium.TupleCentreId tid)

gets the reference to a previosly created local tuple centre.

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onNewUser

public boolean onNewUser(alice.tuplemedium.AgentId who)

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onNewInspector

public boolean onNewInspector(alice.tuplemedium.AgentId who)

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onNewTupleCentre

public boolean onNewTupleCentre(alice.tuplemedium.AgentId who,
                                java.lang.String tcName)

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> alice >> tuplemedium >> [ runtime overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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