//////////////////////////
// Private utility methods
//////////////////////////
private String[] getParticipantNames() {
String[] pp = new String[participants.size()];
Iterator it = participants.iterator();
int i = 0;
while (it.hasNext()) {
AID id = (AID) it.next();
pp[i++] = id.getLocalName();
}
return pp;
}
/**
* 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);
}
}
}
}
public void setup() {
System.out.println("ASU.setup()");
getContentManager().registerLanguage(codec);
getContentManager().registerOntology(ontology);
ACLMessage aclmsg = new ACLMessage(ACLMessage.REQUEST);
AssignPowerRequest apr = new AssignPowerRequest();
apr.setAssignedPower(100000);
aclmsg.setLanguage(codec.getName());
aclmsg.setOntology(ontology.getName());
aclmsg.setProtocol(FIPANames.InteractionProtocol.FIPA_REQUEST);
aclmsg.setReplyByDate(new Date(System.currentTimeMillis() + 30000));
AMSAgentDescription[] agents = null;
try {
SearchConstraints c = new SearchConstraints();
c.setMaxResults(new Long(-1));
agents = AMSService.search(this, new AMSAgentDescription(), c);
} catch (Exception e) {
System.out.println("Problem searching AMS: " + e);
e.printStackTrace();
}
for (AMSAgentDescription agent : agents) {
AID agentID = agent.getName();
try {
getContentManager().fillContent(aclmsg, new Action(agentID, apr));
} catch (Exception e) {
e.printStackTrace();
}
System.out.println(agentID.getLocalName());
if (agentID.getLocalName().compareTo("TURBINE") != 0) continue;
aclmsg.clearAllReceiver();
aclmsg.addReceiver(agentID);
System.out.println("Sending to " + agentID);
addBehaviour(new ASURequestInitiatorBehaviour(this, aclmsg));
try {
Thread.yield();
Thread.sleep(5000);
} catch (Exception e) {
System.out.println("INTERRUPT");
}
ACLMessage aclmsg2 = new ACLMessage(ACLMessage.REQUEST);
BeginPowerTransitionRequest bptr = new BeginPowerTransitionRequest();
bptr.setAssignedPowerValid(false);
aclmsg2.setLanguage(codec.getName());
aclmsg2.setOntology(ontology.getName());
aclmsg2.setProtocol(FIPANames.InteractionProtocol.FIPA_REQUEST);
aclmsg2.setReplyByDate(new Date(System.currentTimeMillis() + 30000));
try {
getContentManager().fillContent(aclmsg2, new Action(agentID, bptr));
} catch (Exception e) {
e.printStackTrace();
}
aclmsg2.clearAllReceiver();
aclmsg2.addReceiver(agentID);
System.out.println("Sending to " + agentID);
addBehaviour(new ASURequestInitiatorBehaviour(this, aclmsg2));
}
}
/**
* 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();
}
}