/** Creates a scenario based on Settings object. */
protected SimScenario() {
Settings s = new Settings(SCENARIO_NS);
nrofGroups = s.getInt(NROF_GROUPS_S);
this.name = s.valueFillString(s.getSetting(NAME_S));
this.endTime = s.getDouble(END_TIME_S);
this.updateInterval = s.getDouble(UP_INT_S);
this.simulateConnections = s.getBoolean(SIM_CON_S);
if (s.contains(SIM_FILES_S)) {
this.simulateFiles = s.getBoolean(SIM_FILES_S);
} else {
this.simulateFiles = false;
}
ensurePositiveValue(nrofGroups, NROF_GROUPS_S);
ensurePositiveValue(endTime, END_TIME_S);
ensurePositiveValue(updateInterval, UP_INT_S);
this.simMap = null;
this.maxHostRange = 1;
this.connectionListeners = new ArrayList<ConnectionListener>();
this.messageListeners = new ArrayList<MessageListener>();
this.movementListeners = new ArrayList<MovementListener>();
this.updateListeners = new ArrayList<UpdateListener>();
this.appListeners = new ArrayList<ApplicationListener>();
this.queryListeners = new ArrayList<FileEventListener>();
this.eqHandler = new EventQueueHandler();
/* TODO: check size from movement models */
s.setNameSpace(MovementModel.MOVEMENT_MODEL_NS);
int[] worldSize = s.getCsvInts(MovementModel.WORLD_SIZE, 2);
this.worldSizeX = worldSize[0];
this.worldSizeY = worldSize[1];
createHosts();
if (this.simulateFiles) {
addFilesToHosts();
}
this.world =
new World(
hosts,
worldSizeX,
worldSizeY,
updateInterval,
updateListeners,
simulateConnections,
eqHandler.getEventQueues());
}
/** Creates hosts for the scenario */
protected void createHosts() {
this.hosts = new ArrayList<DTNHost>();
int lastGroupWithFiles = -1;
this.nrofGroupsWithFiles = 0;
this.groupSizes = new int[nrofGroups];
for (int i = 1; i <= nrofGroups; i++) {
List<NetworkInterface> mmNetInterfaces = new ArrayList<NetworkInterface>();
Settings s = new Settings(GROUP_NS + i);
s.setSecondaryNamespace(GROUP_NS);
String gid = s.getSetting(GROUP_ID_S);
int nrofHosts = s.getInt(NROF_HOSTS_S);
int nrofInterfaces = s.getInt(NROF_INTERF_S);
int appCount;
boolean hasFileCapability;
if (s.contains(FILE_CAPABILITY_S)) {
hasFileCapability = s.getBoolean(FILE_CAPABILITY_S);
} else {
hasFileCapability = false;
}
if (hasFileCapability && i != lastGroupWithFiles) {
lastGroupWithFiles = i;
this.nrofGroupsWithFiles++;
}
// creates prototypes of MessageRouter and MovementModel
MovementModel mmProto =
(MovementModel) s.createIntializedObject(MM_PACKAGE + s.getSetting(MOVEMENT_MODEL_S));
MessageRouter mRouterProto =
(MessageRouter) s.createIntializedObject(ROUTING_PACKAGE + s.getSetting(ROUTER_S));
// checks that these values are positive (throws Error if not)
ensurePositiveValue(nrofHosts, NROF_HOSTS_S);
ensurePositiveValue(nrofInterfaces, NROF_INTERF_S);
this.groupSizes[i - 1] = nrofHosts;
// setup interfaces
for (int j = 1; j <= nrofInterfaces; j++) {
String Intname = s.getSetting(INTERFACENAME_S + j);
Settings t = new Settings(Intname);
NetworkInterface mmInterface =
(NetworkInterface) t.createIntializedObject(INTTYPE_PACKAGE + t.getSetting(INTTYPE_S));
mmInterface.setClisteners(connectionListeners);
mmNetInterfaces.add(mmInterface);
}
// setup applications
if (s.contains(APPCOUNT_S)) {
appCount = s.getInt(APPCOUNT_S);
} else {
appCount = 0;
}
for (int j = 1; j <= appCount; j++) {
String appname = null;
Application protoApp = null;
try {
// Get name of the application for this group
appname = s.getSetting(GAPPNAME_S + j);
// Get settings for the given application
Settings t = new Settings(appname);
// Load an instance of the application
protoApp = (Application) t.createIntializedObject(APP_PACKAGE + t.getSetting(APPTYPE_S));
// Set application listeners
protoApp.setAppListeners(this.appListeners);
// Set the proto application in proto router
// mRouterProto.setApplication(protoApp);
mRouterProto.addApplication(protoApp);
} catch (SettingsError se) {
// Failed to create an application for this group
System.err.println("Failed to setup an application: " + se);
System.err.println("Caught at " + se.getStackTrace()[0]);
System.exit(-1);
}
}
if (mmProto instanceof MapBasedMovement) {
this.simMap = ((MapBasedMovement) mmProto).getMap();
}
// creates hosts of ith group
for (int j = 0; j < nrofHosts; j++) {
ModuleCommunicationBus comBus = new ModuleCommunicationBus();
// prototypes are given to new DTNHost which replicates
// new instances of movement model and message router
DTNHost host =
new DTNHost(
this.messageListeners,
this.movementListeners,
this.queryListeners,
gid,
mmNetInterfaces,
comBus,
mmProto,
mRouterProto,
hasFileCapability);
hosts.add(host);
}
}
}
