/**
* Finds common instruments for all missions in compare list.
*
* @return the set of common instruments names
*/
public static Set<String> findCommonInstruments() {
// calculate common instruments
Set<String> commonInstruments = new HashSet<String>();
if (ITEMS.size() > 1) {
// add first instruments of first item to list
Iterator<CompareItem> i = ITEMS.iterator();
for (EntityInfo instrument : i.next().getInstruments()) {
commonInstruments.add(instrument.getName());
}
// check data with others
while (i.hasNext()) {
CompareItem next = i.next();
for (Iterator<String> j = commonInstruments.iterator(); j.hasNext(); ) {
String commonInstrument = j.next();
// find instrument in next item
boolean present = true;
for (EntityInfo entityInfo : next.getInstruments()) {
if (!entityInfo.getName().equalsIgnoreCase(commonInstrument)) {
present = false;
break;
}
}
// remove instrument if it is not present in next
if (!present) {
j.remove();
}
}
}
}
return commonInstruments;
}
/**
* Check if mission with give id exists in compare list.
*
* @param id the id of mission to check
* @return true if mission exists, false otherwise
*/
public static boolean exists(long id) {
for (CompareItem item : ITEMS) {
if (item.getMission().getId() == id) {
return true;
}
}
return false;
}