@Override
public void process(JsonElement element) {
for (Video video : new Gson().fromJson(element, Video[].class)) {
if (TextUtils.isEmpty(video.id)) {
LOGW(TAG, "Video without valid ID. Using VID instead: " + video.vid);
video.id = video.vid;
}
mVideos.put(video.id, video);
}
}
@Override
public void makeContentProviderOperations(ArrayList<ContentProviderOperation> list) {
Uri uri =
ScheduleContractHelper.setUriAsCalledFromSyncAdapter(ScheduleContract.Videos.CONTENT_URI);
HashMap<String, String> videoHashcodes = loadVideoHashcodes();
HashSet<String> videosToKeep = new HashSet<String>();
boolean isIncrementalUpdate = videoHashcodes != null && videoHashcodes.size() > 0;
if (isIncrementalUpdate) {
LOGD(TAG, "Doing incremental update for videos.");
} else {
LOGD(TAG, "Doing FULL (non incremental) update for videos.");
list.add(ContentProviderOperation.newDelete(uri).build());
}
int updatedVideos = 0;
for (Video video : mVideos.values()) {
String hashCode = video.getImportHashcode();
videosToKeep.add(video.id);
// add video, if necessary
if (!isIncrementalUpdate
|| !videoHashcodes.containsKey(video.id)
|| !videoHashcodes.get(video.id).equals(hashCode)) {
++updatedVideos;
boolean isNew = !isIncrementalUpdate || !videoHashcodes.containsKey(video.id);
buildVideo(isNew, video, list);
}
}
int deletedVideos = 0;
if (isIncrementalUpdate) {
for (String videoId : videoHashcodes.keySet()) {
if (!videosToKeep.contains(videoId)) {
buildDeleteOperation(videoId, list);
++deletedVideos;
}
}
}
LOGD(
TAG,
"Videos: "
+ (isIncrementalUpdate ? "INCREMENTAL" : "FULL")
+ " update. "
+ updatedVideos
+ " to update, "
+ deletedVideos
+ " to delete. New total: "
+ mVideos.size());
}
private void buildVideo(boolean isInsert, Video video, ArrayList<ContentProviderOperation> list) {
Uri allVideosUri =
ScheduleContractHelper.setUriAsCalledFromSyncAdapter(ScheduleContract.Videos.CONTENT_URI);
Uri thisVideoUri =
ScheduleContractHelper.setUriAsCalledFromSyncAdapter(
ScheduleContract.Videos.buildVideoUri(video.id));
ContentProviderOperation.Builder builder;
if (isInsert) {
builder = ContentProviderOperation.newInsert(allVideosUri);
} else {
builder = ContentProviderOperation.newUpdate(thisVideoUri);
}
if (TextUtils.isEmpty(video.vid)) {
LOGW(TAG, "Ignoring video with missing video ID.");
return;
}
String thumbUrl = video.thumbnailUrl;
if (TextUtils.isEmpty(thumbUrl)) {
// Oops, missing thumbnail URL. Let's improvise.
// NOTE: this method of obtaining a thumbnail URL from the video ID
// is unofficial and might not work in the future; that's why we use
// it only as a fallback in case we don't get a thumbnail URL in the incoming data.
thumbUrl = String.format(Locale.US, Config.VIDEO_LIBRARY_FALLBACK_THUMB_URL_FMT, video.vid);
LOGW(TAG, "Video with missing thumbnail URL: " + video.vid + ". Using fallback: " + thumbUrl);
}
list.add(
builder
.withValue(ScheduleContract.Videos.VIDEO_ID, video.id)
.withValue(ScheduleContract.Videos.VIDEO_YEAR, video.year)
.withValue(ScheduleContract.Videos.VIDEO_TITLE, video.title.trim())
.withValue(ScheduleContract.Videos.VIDEO_DESC, video.desc)
.withValue(ScheduleContract.Videos.VIDEO_VID, video.vid)
.withValue(ScheduleContract.Videos.VIDEO_TOPIC, video.topic)
.withValue(ScheduleContract.Videos.VIDEO_SPEAKERS, video.speakers)
.withValue(ScheduleContract.Videos.VIDEO_THUMBNAIL_URL, thumbUrl)
.withValue(ScheduleContract.Videos.VIDEO_IMPORT_HASHCODE, video.getImportHashcode())
.build());
}