/**
* Request for medicine.
*
* <p>This method sends a <b> FIPA REQUEST </b> message to all agents who offers the <tt>
* m_sMedicService </tt> service.
*
* <p>The content of message is: <tt> ( x , y , z ) ( health ) </tt>.
*
* <p>Variable <tt> m_iMedicsCount </tt> is updated.
*
* <p><em> It's very useful to overload this method. </em>
*/
protected void CallForMedic() {
try {
DFAgentDescription dfd = new DFAgentDescription();
ServiceDescription sd = new ServiceDescription();
sd.setType(m_sMedicService);
dfd.addServices(sd);
DFAgentDescription[] result = DFService.search(this, dfd);
if (result.length > 0) {
m_iMedicsCount = result.length;
// Fill the REQUEST message
ACLMessage msg = new ACLMessage(ACLMessage.REQUEST);
for (int i = 0; i < result.length; i++) {
DFAgentDescription dfdMedic = result[i];
AID Medic = dfdMedic.getName();
if (!Medic.equals(getName())) msg.addReceiver(dfdMedic.getName());
else m_iMedicsCount--;
}
msg.setProtocol(FIPANames.InteractionProtocol.FIPA_REQUEST);
msg.setConversationId("CFM");
msg.setContent(
" ( "
+ m_Movement.getPosition().x
+ " , "
+ m_Movement.getPosition().y
+ " , "
+ m_Movement.getPosition().z
+ " ) ( "
+ GetHealth()
+ " ) ");
send(msg);
System.out.println(getLocalName() + ": Need a Medic! (v21)");
} else {
m_iMedicsCount = 0;
}
} catch (FIPAException fe) {
fe.printStackTrace();
}
}
void buscarMensajeros() {
try {
DFAgentDescription dfd = new DFAgentDescription();
ServiceDescription sd = new ServiceDescription();
sd.setType("Mensajero_Axis");
dfd.addServices(sd);
DFAgentDescription[] result = DFService.search(this, dfd);
if (result.length > 0) {
for (int i = 0; i < result.length; i++) {
DFAgentDescription dfdMensajero = result[i];
AID mensajero = dfdMensajero.getName();
if (!mensajero.equals(getName())) m_AidListaMensajeros.add(mensajero);
}
}
} catch (FIPAException fe) {
fe.printStackTrace();
}
}
/**
* Utility method that updates the contact list extracting contact info and location from DF
* descriptions.
*
* @param onlineContactsDescs array of {@link DFAgentDescription} objects that define services as
* results of a DF query
*/
private void updateContactList(DFAgentDescription[] onlineContactsDescs) {
for (int i = 0; i < onlineContactsDescs.length; i++) {
Iterator serviceDescIt = onlineContactsDescs[i].getAllServices();
if (serviceDescIt.hasNext()) {
ServiceDescription desc = (ServiceDescription) serviceDescIt.next();
Iterator propertyIt = desc.getAllProperties();
Location loc = Helper.extractLocation(propertyIt);
AID cId = onlineContactsDescs[i].getName();
if (!cId.equals(myAgent.getAID())) {
// Create an online contact (or update it)
String phoneNumber = cId.getLocalName();
ContactManager.getInstance().addOrUpdateOnlineContact(phoneNumber, loc);
}
}
}
}
/**
* Overrides SubscriptionInitiator.handleInform(), defining what to do each time the DF is
* modified by a contact Basically it adds/removes/updates contacts from ContactList according
* to what has happened to DF. It also fires events on the GUI any time a view refresh is
* needed.
*
* @param inform the message from DF containing a list of changes
*/
protected void handleInform(ACLMessage inform) {
myLogger.log(
Logger.FINE,
"Thread " + Thread.currentThread().getId() + ": Notification received from DF");
ContactManager.getInstance().resetModifications();
try {
DFAgentDescription[] results = DFService.decodeNotification(inform.getContent());
if (results.length > 0) {
for (int i = 0; i < results.length; ++i) {
DFAgentDescription dfd = results[i];
AID contactAID = dfd.getName();
// Do something only if the notification deals with an agent different from the current
// one
if (!contactAID.equals(myAgent.getAID())) {
myLogger.log(
Logger.INFO,
"Thread "
+ Thread.currentThread().getId()
+ ":df says that agent "
+ myAgent.getAID().getLocalName()
+ " updates or registers");
Iterator serviceIter = dfd.getAllServices();
// Registered or updated
if (serviceIter.hasNext()) {
ServiceDescription serviceDesc = (ServiceDescription) serviceIter.next();
Iterator propertyIt = serviceDesc.getAllProperties();
Location loc = Helper.extractLocation(propertyIt);
String phoneNum = contactAID.getLocalName();
ContactManager.getInstance().addOrUpdateOnlineContact(phoneNum, loc);
} else {
myLogger.log(
Logger.INFO,
"Thread "
+ Thread.currentThread().getId()
+ ":df says that agent "
+ myAgent.getAID().getLocalName()
+ " deregisters");
String phoneNumber = contactAID.getLocalName();
Contact c = ContactManager.getInstance().getContact(phoneNumber);
ContactManager.getInstance().setContactOffline(phoneNumber);
MsnEvent event =
MsnEventMgr.getInstance().createEvent(MsnEvent.CONTACT_DISCONNECT_EVENT);
event.addParam(MsnEvent.CONTACT_DISCONNECT_PARAM_CONTACTNAME, c.getName());
MsnEventMgr.getInstance().fireEvent(event);
}
MsnEvent event = MsnEventMgr.getInstance().createEvent(MsnEvent.VIEW_REFRESH_EVENT);
ContactListChanges changes = ContactManager.getInstance().getModifications();
Map<String, Contact> cMap = ContactManager.getInstance().getAllContacts();
Map<String, ContactLocation> cLocMap =
ContactManager.getInstance().getAllContactLocations();
myLogger.log(
Logger.FINE,
"Thread "
+ Thread.currentThread().getId()
+ ":Adding to VIEW_REFRESH_EVENT this list of changes: "
+ changes.toString());
event.addParam(MsnEvent.VIEW_REFRESH_PARAM_LISTOFCHANGES, changes);
event.addParam(MsnEvent.VIEW_REFRESH_CONTACTSMAP, cMap);
event.addParam(MsnEvent.VIEW_REFRESH_PARAM_LOCATIONMAP, cLocMap);
MsnEventMgr.getInstance().fireEvent(event);
}
}
}
} catch (Exception e) {
myLogger.log(Logger.WARNING, "See printstack for Exception.", e);
e.printStackTrace();
}
}