public static void updateChannels(
Context context, String inputId, List<XmlTvParser.XmlTvChannel> channels) {
// Create a map from original network ID to channel row ID for existing channels.
SparseArray<Long> mExistingChannelsMap = new SparseArray<>();
Uri channelsUri = TvContract.buildChannelsUriForInput(inputId);
String[] projection = {Channels._ID, Channels.COLUMN_ORIGINAL_NETWORK_ID};
Cursor cursor = null;
ContentResolver resolver = context.getContentResolver();
try {
cursor = resolver.query(channelsUri, projection, null, null, null);
while (cursor != null && cursor.moveToNext()) {
long rowId = cursor.getLong(0);
int originalNetworkId = cursor.getInt(1);
mExistingChannelsMap.put(originalNetworkId, rowId);
}
} finally {
if (cursor != null) {
cursor.close();
}
}
// If a channel exists, update it. If not, insert a new one.
ContentValues values = new ContentValues();
values.put(Channels.COLUMN_INPUT_ID, inputId);
Map<Uri, String> logos = new HashMap<>();
for (XmlTvParser.XmlTvChannel channel : channels) {
values.put(Channels.COLUMN_DISPLAY_NUMBER, channel.displayNumber);
values.put(Channels.COLUMN_DISPLAY_NAME, channel.displayName);
values.put(Channels.COLUMN_ORIGINAL_NETWORK_ID, channel.originalNetworkId);
values.put(Channels.COLUMN_TRANSPORT_STREAM_ID, channel.transportStreamId);
values.put(Channels.COLUMN_SERVICE_ID, channel.serviceId);
Long rowId = mExistingChannelsMap.get(channel.originalNetworkId);
Uri uri;
if (rowId == null) {
uri = resolver.insert(TvContract.Channels.CONTENT_URI, values);
} else {
uri = TvContract.buildChannelUri(rowId);
resolver.update(uri, values, null, null);
mExistingChannelsMap.remove(channel.originalNetworkId);
}
if (!TextUtils.isEmpty(channel.icon.src)) {
logos.put(TvContract.buildChannelLogoUri(uri), channel.icon.src);
}
}
if (!logos.isEmpty()) {
new InsertLogosTask(context).executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, logos);
}
// Deletes channels which don't exist in the new feed.
int size = mExistingChannelsMap.size();
for (int i = 0; i < size; ++i) {
Long rowId = mExistingChannelsMap.valueAt(i);
resolver.delete(TvContract.buildChannelUri(rowId), null, null);
}
}
public void performSync(TvInputProvider provider, String inputId) {
Log.d(TAG, "Actually begin the sync");
List<Channel> allChannels = provider.getAllChannels();
Log.d(TAG, allChannels.toString());
for (int i = 0; i < allChannels.size(); i++) {
if (allChannels.get(i).getOriginalNetworkId() == 0)
allChannels.get(i).setOriginalNetworkId(i + 1);
if (allChannels.get(i).getTransportStreamId() == 0)
allChannels.get(i).setTransportStreamId(i + 1);
}
TvContractUtils.updateChannels(getContext(), inputId, allChannels);
LongSparseArray<Channel> channelMap =
TvContractUtils.buildChannelMap(mContext.getContentResolver(), inputId, allChannels);
if (channelMap == null) {
Log.d(TAG, "?");
Handler h =
new Handler(Looper.getMainLooper()) {
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
Toast.makeText(getContext(), "Couldn't find any channels. Uh-oh.", Toast.LENGTH_SHORT)
.show();
}
};
h.sendEmptyMessage(0);
// Let's not continue running
return;
}
long startMs = new Date().getTime();
long endMs = startMs + FULL_SYNC_WINDOW_SEC * 1000;
Log.d(TAG, "Now start to get programs");
for (int i = 0; i < channelMap.size(); ++i) {
Uri channelUri = TvContract.buildChannelUri(channelMap.keyAt(i));
List<Program> programList =
provider.getProgramsForChannel(channelUri, channelMap.valueAt(i), startMs, endMs);
Log.d(TAG, "Okay, we NEED to set the channel id first");
for (Program p : programList) {
p.setChannelId(channelMap.keyAt(i));
}
Log.d(TAG, "For " + channelMap.valueAt(i).toString());
Log.d(TAG, programList.toString());
updatePrograms(channelUri, programList);
// Let's double check programs
Uri programEditor = TvContract.buildProgramsUriForChannel(channelUri);
// Mass delete and re-insertion
/*getContext().getContentResolver().delete(programEditor, null, null);
for (Program p : programList) {
p.setChannelId(channelMap.keyAt(i)); //Make sure you have the correct channel id value, it seems to be a foreign key
Uri insert = getContext().getContentResolver().insert(programEditor, p.toContentValues());
Log.d(TAG, (insert == null) + " " + p.toString());
if (insert != null)
Log.d(TAG, insert.toString());
}*/
/*Log.d(TAG, programEditor.toString());
String[] projection = {TvContract.Programs.COLUMN_TITLE};
try (Cursor c = getContext().getContentResolver().query(programEditor, projection, null, null, null)) {
Log.d(TAG, "Found " + c.getCount() + " programs");
while (c.moveToNext()) {
Log.d(TAG, "Cursor read " + c.getString(c.getColumnIndex(TvContract.Programs.COLUMN_TITLE)));
}
}*/
}
Log.d(TAG, "Sync performed");
}