MusicProviderpublic class MusicProvider extends Object | Utility class to get a list of MusicTrack's based on a server-side JSON
configuration. |
| Fields Summary |
|---|
| private static final String | TAG | | private static final String | MUSIC_URL | | private static String | MUSIC | | private static String | TITLE | | private static String | ALBUM | | private static String | ARTIST | | private static String | GENRE | | private static String | SOURCE | | private static String | IMAGE | | private static String | TRACK_NUMBER | | private static String | TOTAL_TRACK_COUNT | | private static String | DURATION | | private static List | mMusicList |
| Methods Summary |
|---|
| public java.util.List | getMedia()Get the cached list of music tracks
if (null != mMusicList && mMusicList.size() > 0) {
return mMusicList;
}
return null;
| | public android.database.MatrixCursor | getRootContainerCurser()
MatrixCursor matrixCursor = new MatrixCursor(BrowserService.MEDIA_CONTAINER_PROJECTION);
Uri.Builder pianoBuilder = new Uri.Builder();
pianoBuilder.authority(BrowserService.AUTHORITY);
pianoBuilder.appendPath(BrowserService.PIANO_BASE_PATH);
matrixCursor.addRow(new Object[] {
pianoBuilder.build(),
BrowserService.PIANO_BASE_PATH,
"subtitle",
null,
0
});
Uri.Builder voiceBuilder = new Uri.Builder();
voiceBuilder.authority(BrowserService.AUTHORITY);
voiceBuilder.appendPath(BrowserService.VOICE_BASE_PATH);
matrixCursor.addRow(new Object[] {
voiceBuilder.build(),
BrowserService.VOICE_BASE_PATH,
"subtitle",
null,
0
});
return matrixCursor;
| | public android.database.MatrixCursor | getRootItemCursor(int type)
if (type == BrowserService.NOW_PLAYING) {
MatrixCursor matrixCursor = new MatrixCursor(BrowserService.MEDIA_CONTAINER_PROJECTION);
try {
// Just return all of the tracks for now
List<MusicTrack> musicTracks = retreiveMedia();
for (MusicTrack musicTrack : musicTracks) {
Uri.Builder builder = new Uri.Builder();
builder.authority(BrowserService.AUTHORITY);
builder.appendPath(BrowserService.NOW_PLAYING_PATH);
builder.appendPath(musicTrack.getTitle());
matrixCursor.addRow(new Object[] {
builder.build(),
musicTrack.getTitle(),
musicTrack.getArtist(),
musicTrack.getImage(),
PlaybackState.ACTION_PLAY
});
Log.d(TAG, "Uri " + builder.build());
}
} catch (JSONException e) {
Log.e(TAG, "::getRootItemCursor:", e);
}
Log.d(TAG, "cursor: " + matrixCursor.getCount());
return matrixCursor;
} else if (type == BrowserService.PIANO) {
MatrixCursor matrixCursor = new MatrixCursor(BrowserService.MEDIA_CONTAINER_PROJECTION);
try {
List<MusicTrack> musicTracks = retreiveMedia();
for (MusicTrack musicTrack : musicTracks) {
Uri.Builder builder = new Uri.Builder();
builder.authority(BrowserService.AUTHORITY);
builder.appendPath(BrowserService.PIANO_BASE_PATH);
builder.appendPath(musicTrack.getTitle());
matrixCursor.addRow(new Object[] {
builder.build(),
musicTrack.getTitle(),
musicTrack.getArtist(),
musicTrack.getImage(),
PlaybackState.ACTION_PLAY
});
Log.d(TAG, "Uri " + builder.build());
}
} catch (JSONException e) {
Log.e(TAG, "::getRootItemCursor:", e);
}
Log.d(TAG, "cursor: " + matrixCursor.getCount());
return matrixCursor;
} else if (type == BrowserService.VOICE) {
MatrixCursor matrixCursor = new MatrixCursor(BrowserService.MEDIA_CONTAINER_PROJECTION);
try {
List<MusicTrack> musicTracks = retreiveMedia();
for (MusicTrack musicTrack : musicTracks) {
Uri.Builder builder = new Uri.Builder();
builder.authority(BrowserService.AUTHORITY);
builder.appendPath(BrowserService.VOICE_BASE_PATH);
builder.appendPath(musicTrack.getTitle());
matrixCursor.addRow(new Object[] {
builder.build(),
musicTrack.getTitle(),
musicTrack.getArtist(),
musicTrack.getImage(),
PlaybackState.ACTION_PLAY
});
Log.d(TAG, "Uri " + builder.build());
}
} catch (JSONException e) {
Log.e(TAG, "::getRootItemCursor:", e);
}
Log.d(TAG, "cursor: " + matrixCursor.getCount());
return matrixCursor;
}
return null;
| | private org.json.JSONObject | parseUrl(java.lang.String urlString)Download a JSON file from a server, parse the content and return the JSON
object.
InputStream is = null;
try {
java.net.URL url = new java.net.URL(urlString);
URLConnection urlConnection = url.openConnection();
is = new BufferedInputStream(urlConnection.getInputStream());
BufferedReader reader = new BufferedReader(new InputStreamReader(
urlConnection.getInputStream(), "iso-8859-1"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line);
}
return new JSONObject(sb.toString());
} catch (Exception e) {
Log.d(TAG, "Failed to parse the json for media list", e);
return null;
} finally {
if (null != is) {
try {
is.close();
} catch (IOException e) {
// ignore
}
}
}
| | public java.util.List | retreiveMedia()Get the list of music tracks from a server and return the list of
MusicTrack objects.
if (null != mMusicList) {
return mMusicList;
}
int slashPos = MUSIC_URL.lastIndexOf('/");
String path = MUSIC_URL.substring(0, slashPos + 1);
JSONObject jsonObj = parseUrl(MUSIC_URL);
try {
JSONArray videos = jsonObj.getJSONArray(MUSIC);
if (null != videos) {
mMusicList = new ArrayList<MusicTrack>();
for (int j = 0; j < videos.length(); j++) {
JSONObject music = videos.getJSONObject(j);
String title = music.getString(TITLE);
String album = music.getString(ALBUM);
String artist = music.getString(ARTIST);
String genre = music.getString(GENRE);
String source = music.getString(SOURCE);
// Media is stored relative to JSON file
if (!source.startsWith("http")) {
source = path + source;
}
String image = music.getString(IMAGE);
if (!image.startsWith("http")) {
image = path + image;
}
int trackNumber = music.getInt(TRACK_NUMBER);
int totalTrackCount = music.getInt(TOTAL_TRACK_COUNT);
int duration = music.getInt(DURATION) * 1000; // ms
mMusicList.add(new MusicTrack(title, album, artist, genre, source,
image, trackNumber, totalTrackCount, duration));
}
}
} catch (NullPointerException e) {
Log.e(TAG, "retreiveMedia", e);
}
return mMusicList;
|
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