private static void restoreState() {
fgLRUWorkingSets = new LRUWorkingSetsList(LRU_WORKINGSET_LIST_SIZE);
IDialogSettings settingsStore = getDialogStoreSection();
boolean foundLRU = false;
for (int i = LRU_WORKINGSET_LIST_SIZE - 1; i >= 0; i--) {
String[] lruWorkingSetNames = settingsStore.getArray(STORE_LRU_WORKING_SET_NAMES + i);
if (lruWorkingSetNames != null) {
Set workingSets = new HashSet(2);
for (int j = 0; j < lruWorkingSetNames.length; j++) {
IWorkingSet workingSet =
PlatformUI.getWorkbench().getWorkingSetManager().getWorkingSet(lruWorkingSetNames[j]);
if (workingSet != null) {
workingSets.add(workingSet);
}
}
foundLRU = true;
if (!workingSets.isEmpty())
fgLRUWorkingSets.add(
(IWorkingSet[]) workingSets.toArray(new IWorkingSet[workingSets.size()]));
}
}
if (!foundLRU)
// try old preference format
restoreFromOldFormat();
}
private static void saveState(IDialogSettings settingsStore) {
IWorkingSet[] workingSets;
Iterator iter = fgLRUWorkingSets.iterator();
int i = 0;
while (iter.hasNext()) {
workingSets = (IWorkingSet[]) iter.next();
String[] names = new String[workingSets.length];
for (int j = 0; j < workingSets.length; j++) names[j] = workingSets[j].getName();
settingsStore.put(STORE_LRU_WORKING_SET_NAMES + i, names);
i++;
}
}
private static void restoreFromOldFormat() {
fgLRUWorkingSets = new LRUWorkingSetsList(LRU_WORKINGSET_LIST_SIZE);
IDialogSettings settingsStore = getDialogStoreSection();
boolean foundLRU = false;
String[] lruWorkingSetNames = settingsStore.getArray(STORE_LRU_WORKING_SET_NAMES);
if (lruWorkingSetNames != null) {
for (int i = lruWorkingSetNames.length - 1; i >= 0; i--) {
IWorkingSet workingSet =
PlatformUI.getWorkbench().getWorkingSetManager().getWorkingSet(lruWorkingSetNames[i]);
if (workingSet != null) {
foundLRU = true;
fgLRUWorkingSets.add(new IWorkingSet[] {workingSet});
}
}
}
if (foundLRU)
// save in new format
saveState(settingsStore);
}