/**
* Searches the specified array of Cybernodes for the first occurence
* of a Cybernode running one or more service elements.
*
* @param cybernodes the array to be searched
* @return the found Cybernode, if successful.
* Otherwise <code>null</null>.
*
* @throws RemoteException if there was a communication failure
* while attempting to access one of the Cybernodes from
* the specified array.
*/
public static Cybernode findBusy(Cybernode[] cybernodes) throws RemoteException {
for (Cybernode cybernode : cybernodes) {
if (cybernode.getServiceStatements().length > 0) {
return cybernode;
}
}
return null;
}
/**
* Searches the specified list of Cybernodes for the first occurence
* of a Cybernode running one or more service elements.
*
* @param cybernodes the list to be searched
* @return the found Cybernode, if successful.
* Otherwise <code>null</null>.
*/
public static Cybernode findBusy(List<Cybernode> cybernodes) {
for (Cybernode cybernode : cybernodes) {
try {
if (cybernode.getServiceStatements().length > 0) {
return cybernode;
}
} catch (RemoteException e) {
e.printStackTrace();
}
}
return null;
}
/**
* Calculates the number of services of the specified type running on each of the specified
* Cybernodes.
*
* @param cybernodes the Cybernodes to consider
* @param type the service type to look for
* @return the resulting array. Every element of this array stores the number of services of the
* specified type running on a specific Cybernode. The order of elements corresponds to the
* one of services in the <code>cybernodes</code> parameter.
* @throws RemoteException if there was a communication failure while attempting to access one of
* the Cybernodes from the specified list.
*/
public static int[] calcServices(Cybernode[] cybernodes, Class type) throws RemoteException {
int[] res = new int[cybernodes.length];
for (int i = 0; i < cybernodes.length; i++) {
Cybernode cybernode = cybernodes[i];
ServiceRecord[] records = cybernode.getServiceRecords(ServiceRecord.ACTIVE_SERVICE_RECORD);
for (ServiceRecord record : records) {
ServiceElement element = record.getServiceElement();
ClassBundle[] exportBundles = element.getExportBundles();
for (ClassBundle bundle : exportBundles) {
if (bundle.getClassName().equals(type.getName())) {
res[i]++;
break;
}
}
}
}
return res;
}
