public void migrateListIds(TaskLists remoteLists) {
readLists();
List<TaskList> items = remoteLists.getItems();
for (TaskList remote : items) {
for (StoreObject list : lists) {
if (list.getValue(GtasksList.NAME).equals(remote.getTitle())) {
list.setValue(GtasksList.REMOTE_ID, remote.getId());
storeObjectDao.persist(list);
break;
}
}
}
}
/**
* Reads in remote list information and updates local list objects.
*
* @param remoteLists remote information about your lists
*/
public synchronized void updateLists(TaskLists remoteLists) {
readLists();
HashSet<Long> previousLists = new HashSet<Long>(lists.length);
for (StoreObject list : lists) {
previousLists.add(list.getId());
}
List<TaskList> items = remoteLists.getItems();
StoreObject[] newLists = new StoreObject[items.size()];
for (int i = 0; i < items.size(); i++) {
com.google.api.services.tasks.model.TaskList remote = items.get(i);
String id = remote.getId();
StoreObject local = null;
for (StoreObject list : lists) {
if (list.getValue(GtasksList.REMOTE_ID).equals(id)) {
local = list;
break;
}
}
if (local == null) {
local = new StoreObject();
}
local.setValue(StoreObject.TYPE, GtasksList.TYPE);
local.setValue(GtasksList.REMOTE_ID, id);
local.setValue(GtasksList.NAME, remote.getTitle());
local.setValue(GtasksList.ORDER, i);
storeObjectDao.persist(local);
previousLists.remove(local.getId());
newLists[i] = local;
}
lists = newLists;
// check for lists that aren't on remote server
for (Long listId : previousLists) {
storeObjectDao.delete(listId);
}
}
public void checkAndMigrateLegacy() throws IOException {
if (!gtasksPreferenceService.migrationHasOccurred()) {
// Fetch all tasks that have associated gtask metadata
String defaultListTitle =
gtasksListService.getListName(
Preferences.getStringValue(GtasksPreferenceService.PREF_DEFAULT_LIST));
String defaultListId = null;
TodorooCursor<Task> allTasksWithGtaskData =
taskService.query(
Query.select(Task.PROPERTIES)
.where(
Task.ID.in(
Query.select(Metadata.TASK)
.from(Metadata.TABLE)
.where(Metadata.KEY.eq(GtasksMetadata.METADATA_KEY)))));
try {
if (allTasksWithGtaskData.getCount() > 0) {
// Fetch all remote tasks from all remote lists (this may be an expensive operation)
// and map their titles to their real remote ids
HashMap<String, String> taskAndListTitlesToRemoteTaskIds = new HashMap<String, String>();
List<TaskList> items = allLists.getItems();
for (TaskList list : items) {
if (list.getTitle().equals(defaultListTitle)) {
defaultListId = list.getId();
}
Tasks allTasks = gtasksService.getAllGtasksFromListId(list.getId(), false, false, 0);
List<com.google.api.services.tasks.model.Task> tasksItems = allTasks.getItems();
if (tasksItems != null) {
for (com.google.api.services.tasks.model.Task t : tasksItems) {
String key = constructKeyFromTitles(t.getTitle(), list.getTitle());
taskAndListTitlesToRemoteTaskIds.put(key, t.getId());
}
}
}
if (defaultListId == null) {
com.google.api.services.tasks.model.TaskList defaultList =
gtasksService.getGtaskList("@default"); // $NON-NLS-1$
defaultListId = defaultList.getId();
}
Preferences.setString(GtasksPreferenceService.PREF_DEFAULT_LIST, defaultListId);
// For each local task, check to see if its title paired with any list title has a match
// in the map
for (allTasksWithGtaskData.moveToFirst();
!allTasksWithGtaskData.isAfterLast();
allTasksWithGtaskData.moveToNext()) {
GtasksTaskContainer container =
gtasksMetadataService.readTaskAndMetadata(allTasksWithGtaskData);
// memorize the original listname for the case that the task is not matched,
// then it should at least be recreated in the correct list
String originalListName =
gtasksListService.getListName(
container.gtaskMetadata.getValue(GtasksMetadata.LIST_ID));
String originalListId = null;
// Search through lists to see if one of them has match
String taskTitle = container.task.getValue(Task.TITLE);
boolean foundMatch = false;
items = allLists.getItems();
for (TaskList list : items) {
String expectedKey = constructKeyFromTitles(taskTitle, list.getTitle());
// save the new id of the current list
// if it matches the listname of the current task
if (list.getTitle() != null && list.getTitle().equals(originalListName)) {
originalListId = list.getId();
}
if (taskAndListTitlesToRemoteTaskIds.containsKey(expectedKey)) {
foundMatch = true;
String newRemoteTaskId = taskAndListTitlesToRemoteTaskIds.get(expectedKey);
String newRemoteListId = list.getId();
container.gtaskMetadata.setValue(GtasksMetadata.ID, newRemoteTaskId);
container.gtaskMetadata.setValue(GtasksMetadata.LIST_ID, newRemoteListId);
gtasksMetadataService.saveTaskAndMetadata(container);
break;
}
}
if (!foundMatch) {
// For non-matches, make the task look newly created
container.gtaskMetadata = GtasksMetadata.createEmptyMetadata(container.task.getId());
container.gtaskMetadata.setValue(GtasksMetadata.ID, ""); // $NON-NLS-1$
if (originalListId != null) {
// set the list-id based on the original listname, saved above during for-loop
container.gtaskMetadata.setValue(GtasksMetadata.LIST_ID, originalListId);
} else {
// remote list or local list was renamed, so put this unmatched task in the default
// list
container.gtaskMetadata.setValue(GtasksMetadata.LIST_ID, defaultListId);
}
gtasksMetadataService.saveTaskAndMetadata(container);
break;
}
}
}
// migrate the list-id's afterwards, so that we can put the non-matched tasks in their
// original lists
// if the listnames didnt change before migration (defaultlist otherwise)
listService.migrateListIds(allLists);
} finally {
allTasksWithGtaskData.close();
}
Preferences.setBoolean(
GtasksPreferenceService.PREF_MIGRATION_HAS_OCCURRED, true); // Record successful migration
}
}