Package fr.dyade.aaa.agent

Class ServiceManager

java.lang.Object

fr.dyade.aaa.agent.ServiceManager

All Implemented Interfaces:

Serializable

public class ServiceManager
extends Object
implements Serializable

Object which manages services. There is only one ServiceManager object per agent server. The ServiceManager object is initialized in init, called from AgentServer.init. This classes reuses the persistency service provided by Transaction.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private static boolean	DEBUG
(package private) static Logger	logger
(package private) static ServiceManager	manager	the unique ServiceManager in the agent server
private static String	name
(package private) Hashtable<String,ServiceDesc>	registry	repository holding Services
private static long	serialVersionUID	Define serialVersionUID for interoperability.
static String	txname

Constructor Summary

Constructors

Modifier	Constructor	Description
private	ServiceManager()	Default constructor.

Method Summary

Modifier and Type	Method	Description
static String	getName()
static ServiceDesc	getService(String serviceClassName)
(package private) static ServiceDesc[]	getServices()
(package private) static void	init()	Initializes the ServiceManager object.
(package private) static Set<String>	listServices()
(package private) static ServiceManager	load()	Builds object from persistent image.
static void	loadServiceClass(ServiceDesc desc)	Loads the class of a service.
static void	loadServiceClasses()	Loads the class of every service.
static void	register(String scname, String args)	Registers a new Service object.
(package private) static void	save()	Saves object in persistent storage.
(package private) static void	start(boolean exitOnFailure)	Starts all defined services.
static void	start(ServiceDesc desc)	Start a Service defined by its descriptor.
(package private) static void	start(String scname)	Start a Service identified by its name.
(package private) static void	stop()	Stops all running services.
static void	stop(ServiceDesc desc)	Stop a Service defined by its descriptor.
static void	stop(String scname)	Stop a Service identified by its name.
String	toString()	Provides a string image for this object.
(package private) static void	unregister(String scname)	Unregisters useless Service.

Methods inherited from class java.lang.Object

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

Field Detail

serialVersionUID

private static final long serialVersionUID

Define serialVersionUID for interoperability.

See Also:

Constant Field Values

logger

static Logger logger

DEBUG

private static final boolean DEBUG

manager

static ServiceManager manager

the unique ServiceManager in the agent server

name

private static String name

txname

public static String txname

registry

Hashtable<String,ServiceDesc> registry

repository holding Services

Constructor Detail

ServiceManager

private ServiceManager()

Default constructor.

Method Detail

getName

public static final String getName()

init

static void init()
          throws Exception

Initializes the ServiceManager object. Synchronize the persistent image and the configuration file.

Throws:

Exception - unspecialized exception

load

static ServiceManager load()
                    throws IOException,
                           ClassNotFoundException

Builds object from persistent image.

Returns:

loaded object or null if no persistent image exists

Throws:

IOException - when accessing the stored image

ClassNotFoundException - if the corresponding image class may not be found

save

static void save()
          throws IOException

Saves object in persistent storage.

Throws:

IOException - an error occurs.

loadServiceClasses

public static void loadServiceClasses()
                               throws Exception

Loads the class of every service.

Throws:

Exception - if an error occurs

loadServiceClass

public static void loadServiceClass(ServiceDesc desc)
                             throws Exception

Loads the class of a service.

Parameters:

desc - the service descriptor

Throws:

Exception - if an error occurs

start

public static void start(ServiceDesc desc)
                  throws Exception

Start a Service defined by its descriptor.

Parameters:

desc - service descriptor.

Throws:

Exception - if an error occurs

start

static void start(String scname)
           throws Exception

Start a Service identified by its name.

Parameters:

scname - service class name.

Throws:

Exception - if an error occurs

start

static void start(boolean exitOnFailure)
           throws Exception

Starts all defined services.

Parameters:

exitOnFailure - if true exit on failure.

Throws:

Exception - if an error occurs

stop

public static void stop(ServiceDesc desc)
                 throws Exception

Stop a Service defined by its descriptor.

Parameters:

desc - service descriptor.

Throws:

Exception - if an error occurs

stop

public static void stop(String scname)
                 throws Exception

Stop a Service identified by its name.

Parameters:

scname - service class name.

Throws:

Exception - if an error occurs

stop

static void stop()

Stops all running services.

register

public static void register(String scname,
                            String args)

Registers a new Service object.

Parameters:

scname - service class name.

args - launching arguments.

unregister

static void unregister(String scname)

Unregisters useless Service.

Parameters:

scname - service class name.

getService

public static ServiceDesc getService(String serviceClassName)

getServices

static ServiceDesc[] getServices()

listServices

static Set<String> listServices()

toString

public String toString()

Provides a string image for this object.

Overrides:

toString in class Object

Returns:

a string image for this object