public static <T> PaginatedResult<T> buildPaginatedResult(Result result, ItemFactory<T> factory) {
if (!result.isSuccessful()) {
return new PaginatedResult<T>(0, 0, Collections.<T>emptyList());
}
DomElement contentElement = result.getContentElement();
return buildPaginatedResult(contentElement, contentElement, factory);
}
/**
* Get the tags applied by an individual user to an album on Last.fm.
*
* @param artist The artist name in question
* @param album The album name in question
* @param session A Session instance
* @return a list of tags
*/
public static Collection<String> getTags(String artist, String album, Session session) {
Result result =
Caller.getInstance().call("album.getTags", session, "artist", artist, "album", album);
if (!result.isSuccessful()) return Collections.emptyList();
DomElement element = result.getContentElement();
Collection<String> tags = new ArrayList<String>();
for (DomElement domElement : element.getChildren("tag")) {
tags.add(domElement.getChildText("name"));
}
return tags;
}
public static PaginatedResult<User> getMembers(String group, int page, String apiKey) {
Result result =
Caller.getInstance()
.call("group.getMembers", apiKey, "group", group, "page", String.valueOf(page));
if (!result.isSuccessful())
return new PaginatedResult<User>(0, 0, Collections.<User>emptyList());
DomElement root = result.getContentElement();
Collection<DomElement> children = root.getChildren("user");
List<User> users = new ArrayList<User>(children.size());
for (DomElement child : children) {
users.add(User.userFromElement(child));
}
page = Integer.parseInt(root.getAttribute("page"));
int total = Integer.parseInt(root.getAttribute("totalPages"));
return new PaginatedResult<User>(page, total, users);
}
/**
* Use the last.fm corrections data to check whether the supplied artist has a correction to a
* canonical artist. This method returns a new {@link Artist} object containing the corrected
* data, or <code>null</code> if the supplied Artist was not found.
*
* @param artist The artist name to correct
* @return a new {@link Artist}, or <code>null</code>
*/
public static final Artist getCorrection(final Context context, final String artist) {
Result result = null;
try {
result = Caller.getInstance(context).call("artist.getCorrection", "<key>", "artist", artist);
if (!result.isSuccessful()) {
return null;
}
final DomElement correctionElement = result.getContentElement().getChild("correction");
if (correctionElement == null) {
return new Artist(artist, null);
}
final DomElement artistElem = correctionElement.getChild("artist");
return FACTORY.createItemFromElement(artistElem);
} catch (final Exception ignored) {
return null;
}
}
public static <T> Collection<T> buildCollection(Result result, ItemFactory<T> factory) {
if (!result.isSuccessful()) return Collections.emptyList();
return buildCollection(result.getContentElement(), factory);
}
public static <T> T buildItem(Result result, ItemFactory<T> factory) {
if (!result.isSuccessful()) return null;
return buildItem(result.getContentElement(), factory);
}
private Result execute(
COMMAND_TYPE commandType,
Command command,
SortedEventList openTasks,
SortedEventList completeTasks) {
// TODO Auto-generated method stub
Result r = new Result(false, null, null, null);
switch (commandType) {
case ADD:
r = openTasks.addEvent(command.getEventFromCommand());
r.setCommandType("add");
return r;
case GET:
r = openTasks.getEventWithId(command.getId());
r.setCommandType("get");
return r;
case SET:
r = openTasks.editEventWithId(command.getEventFromCommand(), command.getId());
r.setCommandType("set");
return r;
case DELETEOPEN:
r = openTasks.deleteEventWithId(command.getId());
r.setCommandType("deleteOpen");
return r;
case DELETECOMPLETE:
r = completeTasks.deleteEventWithId(command.getId());
r.setCommandType("deleteComplete");
return r;
case GETOPEN:
r = openTasks.getArrayList();
r.setCommandType("getOpen");
return r;
case GETCOMPLETE:
r = completeTasks.getArrayList();
r.setCommandType("getComplete");
return r;
case SORT:
r = openTasks.sortBy(command.getSortKeyWords());
r.setCommandType("sort");
return r;
case SEARCHOPEN:
r = openTasks.searchBy(command.getSearchKeyWords(), command.getSearchType());
r.setCommandType("SEARCHOPEN");
return r;
case SEARCHCOMPLETE:
r = completeTasks.searchBy(command.getSearchKeyWords(), command.getSearchType());
r.setCommandType("searchComplete");
return r;
case COMPLETE:
r.setCommandType("COMPLETE");
Result r1 =
completeTasks.addEvent(openTasks.getEventWithId(command.getId()).getData().get(0));
Result r2 = openTasks.deleteEventWithId(command.getId());
if (r1.isSuccessful() && r2.isSuccessful()) {
ArrayList<Event> data = new ArrayList<Event>();
data.add(r1.getData().get(0));
r.setData(r1.getData());
r.setSuccessful(true);
return r;
} else {
ArrayList<Event> data = new ArrayList<Event>();
data.add(r1.getData().get(0));
r.setSuccessful(false);
r.setData(data);
r.setError(INVALID_COMPLETED_TASK_ID_MSG);
return r;
}
case INCOMPLETE:
Result r3 =
openTasks.addEvent(completeTasks.getEventWithId(command.getId()).getData().get(0));
Result r4 = completeTasks.deleteEventWithId(command.getId());
r.setCommandType("INCOMPLETE");
if (r3.isSuccessful() && r4.isSuccessful()) {
ArrayList<Event> data = new ArrayList<Event>();
data.add(r3.getData().get(0));
r.setData(r3.getData());
r.setSuccessful(true);
return r;
} else {
ArrayList<Event> data = new ArrayList<Event>();
data.add(r3.getData().get(0));
r.setSuccessful(false);
r.setData(data);
r.setError(INVALID_INCOMPLETE_TASK_ID_MSG);
return r;
}
case SAVE:
Boolean re1 = openTasks.write();
Boolean re2 = completeTasks.write();
r.setCommandType("save");
if (re1 && re2) {
return r;
} else {
r.setSuccessful(false);
r.setError(IO_EXCEPTION_MSG);
return r;
}
case BACKUP:
r.setCommandType("backup");
if (completeTasks.readBackUp().isSuccessful() && openTasks.readBackUp().isSuccessful()) {
r.setSuccessful(true);
return r;
} else {
r.setSuccessful(false);
r.setError(IO_EXCEPTION_MSG);
return r;
}
default:
throw new Error("Unrecognized command type");
}
}
