examples.guestbook
Class AgentBehaviour

java.lang.Object
  de.fhg.igd.jhsm.AbstractComponent
      de.fhg.igd.jhsm.HSMState
          de.fhg.igd.jhsm.HSM
              examples.guestbook.AgentBehaviour

All Implemented Interfaces:

Component, CompositeState, Serializable, State

public class AgentBehaviour

extends HSM

The agents task is to visit all known agent servers, access their guestbook service and add a nice entry. Finally the agent returns to the sender and reports the names of all guestbook owners. The dotted transitions denote migration transitions, which allows the agent to changes its location.

 HSM:
 ----
 initial --> --> homeaddr --> destaddr --> decision --> nextdest ....> guestbook --> remember site --+
                                             |   ^                              				       |
                                 	           |   |                              	 				   |
 finish <--- report <............ gohome <---+   +---------------------------------------------------+
 

Version:

$Id: AgentBehaviour.java 1913 2007-08-08 02:41:53Z jpeters $

Author:

U. Pinsdorf

See Also:

Serialized Form

Nested Class Summary

private class	AgentBehaviour.GuestbookAction This action adds a predefined entry to the guestbook of the local host.
private class	AgentBehaviour.ReportAction This action gives the user an report of the agent's actions.

Field Summary

private static String	CTX_DESTINATIONS
private static String	CTX_HOME Keys for the context of the state machine.
private static String	CTX_SITES
private static String	GUESTBOOK_ENTRY
private int	hop_ The number of migration hops already performed.
private static Logger	LOG The logger instance.
private static String	PROTOCOL Preferred migration protocol.

Fields inherited from class de.fhg.igd.jhsm.HSM

Fields inherited from class de.fhg.igd.jhsm.HSMState

Fields inherited from class de.fhg.igd.jhsm.AbstractComponent

Constructor Summary

AgentBehaviour()
Constructs the state machine for this agent behaviour.

Methods inherited from class de.fhg.igd.jhsm.HSM

action, addState, contains, entry, exit, getInitialState, getStates, removeState, setInitialState

Methods inherited from class de.fhg.igd.jhsm.HSMState

action, addDeferred, addTransition, defers, getDeferred, getTransitions, removeDeferred, removeTransition, setEntry, setExit

Methods inherited from class de.fhg.igd.jhsm.AbstractComponent

getAction, getName, getParent, setAction, setName, setParent, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.fhg.igd.jhsm.State

addDeferred, addTransition, defers, getDeferred, getTransitions, removeDeferred, removeTransition, setEntry, setExit

Methods inherited from interface de.fhg.igd.jhsm.Component

action, getAction, getName, getParent, setAction, setName, setParent

Field Detail

LOG

private static final Logger LOG

The logger instance.

CTX_HOME

private static final String CTX_HOME

Keys for the context of the state machine. This context is a global data repository for information sharing between states.

See Also:

Constant Field Values

CTX_DESTINATIONS

private static final String CTX_DESTINATIONS

See Also:

Constant Field Values

CTX_SITES

private static final String CTX_SITES

See Also:

Constant Field Values

PROTOCOL

private static final String PROTOCOL

Preferred migration protocol.

See Also:

Constant Field Values

GUESTBOOK_ENTRY

private static final String GUESTBOOK_ENTRY

See Also:

Constant Field Values

hop_

private int hop_

The number of migration hops already performed. This variable will be serialized along with the agent.

Constructor Detail

AgentBehaviour

public AgentBehaviour()

Constructs the state machine for this agent behaviour.