com.scalagent.task.util.ProcessManager

com.scalagent.task.util.ProcessManager Class Reference

Collaboration diagram for com.scalagent.task.util.ProcessManager:


Public Member Functions
String	toString ()
synchronized void	register (Process process, AgentId agent) throws Exception
synchronized void	destroy (AgentId agent) throws Exception
Static Public Member Functions
static void	init (String args, boolean firstTime) throws Exception
Static Public Attributes
static ProcessManager	manager
Package Functions
void	save () throws IOException
	ProcessManager ()
synchronized void	unregister (ProcessMonitor monitor) throws Exception
Static Package Functions
static ProcessManager	load () throws IOException, ClassNotFoundException
Package Attributes
Vector	registry
Static Package Attributes
static Logger	xlogmon = null

Detailed Description

Object which monitors processes execution. There is only one ProcessManager object per agent server. It eventually signals the process end to the registered agent by an external ProcessEnd notification.

The ProcessManager object is initialized in init, called from AgentServer.init.

This classes reuses the persistency service provided by Transaction.

See also:: ProcessEnd
ProcessMonitor

Definition at line 48 of file ProcessManager.java.

Constructor & Destructor Documentation

com.scalagent.task.util.ProcessManager.ProcessManager ( ) [package]

Default constructor.

Definition at line 111 of file ProcessManager.java.

References com.scalagent.task.util.ProcessManager.registry.

Referenced by com.scalagent.task.util.ProcessManager.init().

Member Function Documentation

static void com.scalagent.task.util.ProcessManager.init	(	String	args,
		boolean	firstTime
	)			throws Exception `[static]`

Initializes the ProcessManager object.

Exceptions:

Exception

unspecialized exception

Definition at line 60 of file ProcessManager.java.

References com.scalagent.task.util.ProcessManager.load(), com.scalagent.task.util.ProcessManager.manager, com.scalagent.task.util.ProcessManager.ProcessManager(), com.scalagent.task.util.ProcessManager.registry, com.scalagent.task.util.ProcessManager.save(), and com.scalagent.task.util.ProcessManager.xlogmon.

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static ProcessManager com.scalagent.task.util.ProcessManager.load ( ) throws IOException, ClassNotFoundException [static, package]

Builds object from persistent image.

Returns:: loaded object or null if no persistent image exists

Exceptions:

	IOException	when accessing the stored image
	ClassNotFoundException	if the stored image class may not be found

Definition at line 93 of file ProcessManager.java.

References com.scalagent.task.util.ProcessManager.load().

Referenced by com.scalagent.task.util.ProcessManager.init(), and com.scalagent.task.util.ProcessManager.load().

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void com.scalagent.task.util.ProcessManager.save ( ) throws IOException [package]

Saves object in persistent storage.

Definition at line 100 of file ProcessManager.java.

References com.scalagent.task.util.ProcessManager.manager.

Referenced by com.scalagent.task.util.ProcessManager.init(), com.scalagent.task.util.ProcessManager.register(), and com.scalagent.task.util.ProcessManager.unregister().

String com.scalagent.task.util.ProcessManager.toString ( )

Provides a string image for this object.

Returns:: a string image for this object

Definition at line 121 of file ProcessManager.java.

References com.scalagent.task.util.ProcessManager.registry.

synchronized void com.scalagent.task.util.ProcessManager.register	(	Process	process,
		AgentId	agent
	)			throws Exception

Registers the Process object with the monitoring agent. This ProcessManager delegates the process management to a ProcessMonitor running in a separate thread as a Driver. When the process terminates the ProcessMonitor unregisters from this ProcessManager.

Parameters: