protected ViewNavigator getNavigator() {
final Map<String, Object> requestScope = getRequestScope();
final String key = "viewnav-" + this.toString();
if (!requestScope.containsKey(key)) {
requestScope.put(key, getNewNavigator());
}
nav_ = (ViewNavigator) requestScope.get(key);
return nav_;
}
@SuppressWarnings("unchecked")
private Map<Integer, E> getCache() {
Map<String, Object> cacheScope =
FrameworkUtils.isFaces() ? FrameworkUtils.getRequestScope() : internalCacheScope_;
String key = toString() + "_entrycache";
if (!cacheScope.containsKey(key)) {
cacheScope.put(key, new HashMap<Integer, E>());
}
return (Map<Integer, E>) cacheScope.get(key);
}
public final void clearCache() {
getCache().clear();
getView().refresh();
size_ = -1;
final Map<String, Object> requestScope = getRequestScope();
String thisToString = this.toString();
requestScope.remove("viewnav-" + thisToString);
requestScope.remove("viewentries-" + thisToString);
requestScope.remove("lastFetchedIndex-" + thisToString);
}
protected ViewEntryCollection getEntries() {
final Map<String, Object> requestScope = getRequestScope();
final String key = "viewentries-" + this.toString();
if (!requestScope.containsKey(key)) {
View view = getView();
if (StringUtil.isNotEmpty(searchQuery_)) {
if (getResortColumn() != null) {
view.FTSearchSorted(
searchQuery_, 0, getResortColumn(), isAscending(), false, false, false);
} else {
view.FTSearch(searchQuery_);
}
}
if (category_ != null) {
requestScope.put(key, view.getAllEntriesByKey(category_));
} else {
requestScope.put(key, view.getAllEntries());
}
}
return (ViewEntryCollection) requestScope.get(key);
}
/* **********************************************************************
* List methods
************************************************************************/
@Override
@SuppressWarnings("deprecation")
public E get(final int index) {
if (invalid_) {
return null;
}
Map<Integer, E> cache = getCache();
if (!cache.containsKey(index)) {
try {
if (searchQuery_ == null || searchQuery_.isEmpty()) {
ViewNavigator nav = getNavigator();
// getNth is top-level only, so let's skip to what we need
int lastFetchedIndex = 0;
Map<String, Object> requestScope = getRequestScope();
String key = "lastFetchedIndex-" + toString();
if (requestScope.containsKey(key)) {
lastFetchedIndex = (Integer) requestScope.get(key);
}
nav.skip(index - lastFetchedIndex);
requestScope.put(key, index);
try {
// Try to get the current one, which may be null due to an as-yet-unsolved
// "object has been removed or recycled" error. Check for that and switch to
// our exception handler to retry
ViewEntry entry = nav.getCurrent();
if (entry == null) {
throw new NullPointerException();
}
cache.put(index, createFromViewEntry(entry, columnInfo_));
} catch (NullPointerException npe) {
// Then we've probably hit an "Object has been removed or recycled" on the nav
if (reset_ < 10) {
reset_++;
clearCache();
return get(index);
}
System.out.println("=============================== NPE in DominoModelList");
System.out.println(
"=============================== Current class: " + getClass().getName());
System.out.println("=============================== Type: " + getClazz().getName());
System.out.println("=============================== Desired index: " + index);
System.out.println("=============================== Current cache: " + cache);
System.out.println("=============================== Current reported size: " + size());
throw npe;
} catch (RuntimeException re) {
if (String.valueOf(re.getCause()).contains("Argument has been removed or recycled")) {
if (reset_ < 10) {
reset_++;
clearCache();
return get(index);
}
}
// Otherwise, throw it up
throw re;
}
} else {
ViewEntryCollection vec = getEntries();
cache.put(index, createFromViewEntry(vec.getNthEntry(index + 1), columnInfo_));
}
} catch (Exception e) {
throw e instanceof RuntimeException ? (RuntimeException) e : new RuntimeException(e);
}
}
return cache.get(index);
}