public boolean updateNewsStates(Collection<StatesUpdateInfo> statesUpdateInfos) {
boolean changed = false;
for (StatesUpdateInfo info : statesUpdateInfos) {
long newsId = info.getNewsReference().getId();
if (info.getOldState() == null) {
boolean itemRemoved = fNewsIds[INews.State.NEW.ordinal()].removeByElement(newsId);
if (!itemRemoved) {
EnumSet<State> remainingStates = EnumSet.allOf(INews.State.class);
remainingStates.remove(INews.State.NEW);
remainingStates.remove(info.getNewState());
for (INews.State state : remainingStates) {
if (fNewsIds[state.ordinal()].removeByElement(newsId)) itemRemoved = true;
}
}
if (itemRemoved) {
changed = true;
fNewsIds[info.getNewState().ordinal()].add(newsId);
}
} else if (fNewsIds[info.getOldState().ordinal()].removeByElement(newsId)) {
changed = true;
fNewsIds[info.getNewState().ordinal()].add(newsId);
}
}
return changed;
}
public List<NewsReference> removeNews(Set<INews.State> states) {
List<NewsReference> newsRefs = getNews(states);
for (INews.State state : states) {
int index = state.ordinal();
fNewsIds[index].clear();
}
return newsRefs;
}
public int getNewsCount(Set<INews.State> states) {
Assert.isNotNull(states, "states"); // $NON-NLS-1$
int count = 0;
for (INews.State state : states) {
count += fNewsIds[state.ordinal()].size();
}
return count;
}
public List<NewsReference> getNews(Set<INews.State> states) {
List<NewsReference> newsRefs = new ArrayList<NewsReference>(getNewsCount(states));
for (INews.State state : states) {
int index = state.ordinal();
LongArrayList newsIds = fNewsIds[index];
for (int i = 0, c = newsIds.size(); i < c; ++i) {
long newsId = newsIds.get(i);
Assert.isLegal(newsId != 0);
newsRefs.add(new NewsReference(newsId));
}
}
return newsRefs;
}
public Pair<Boolean, Boolean> setNews(Map<INews.State, List<NewsReference>> newsMap) {
Assert.isNotNull(newsMap, "newsMap"); // $NON-NLS-1$
boolean changed = false;
boolean isNewNewsAdded = false;
Set<INews.State> statesToReset = EnumSet.allOf(INews.State.class);
statesToReset.removeAll(newsMap.keySet());
/* Reset all ArrayLists whose state is not present in newsMap */
for (INews.State state : statesToReset) {
int index = state.ordinal();
LongArrayList currentArrayList = fNewsIds[index];
if (currentArrayList.size() > 0) {
currentArrayList.clear();
changed = true;
}
}
/* For each Result */
for (Map.Entry<INews.State, List<NewsReference>> mapEntry : newsMap.entrySet()) {
List<NewsReference> news = mapEntry.getValue();
INews.State state = mapEntry.getKey();
Assert.isNotNull(news, "news"); // $NON-NLS-1$
Assert.isNotNull(state, "state"); // $NON-NLS-1$
long[] newArray = new long[news.size()];
/* Fill Bucket */
for (int i = 0; i < news.size(); i++) {
newArray[i] = news.get(i).getId();
}
int index = state.ordinal();
LongArrayList currentArrayList = fNewsIds[index];
if (state.equals(INews.State.NEW)) {
/* Check for added *new* News */
if (newArray.length > currentArrayList.size()) isNewNewsAdded = true;
else {
for (long value : newArray) {
if (currentArrayList.indexOf(value) < 0) {
isNewNewsAdded = true;
break;
}
}
}
if (isNewNewsAdded || (newArray.length != currentArrayList.size())) {
changed = true;
currentArrayList.setAll(newArray);
}
} else {
if (!currentArrayList.elementsEqual(newArray)) {
currentArrayList.setAll(newArray);
changed = true;
}
}
}
return Pair.create(changed, isNewNewsAdded);
}