/** Peeks at the next token and returns a {@link Double} or {@code null} */
Double nextNumberOrNull() throws IOException {
if (_reader.peek() == JsonToken.NULL) {
_reader.nextNull();
return null;
}
return _reader.nextDouble();
}
/**
* Reads a JSON object for a specific density and populates variables if the density matches
* {@code bitmapDensity}.
*
* @param reader The JsonReader reading the JSON metadata.
* @param bitmapDensity The density of the unscaled {@link Bitmap} that was loaded.
* @return True if the JSON object being parsed corresponds to bitmapDensity.
* @throws IOException
*/
private boolean parseMetadataForDensity(JsonReader reader, int bitmapDensity) throws IOException {
String name = reader.nextName();
assert name.equals("density");
int density = reader.nextInt();
// If this is metadata for a density other than bitmapDensity, skip parsing the rest of the
// object.
if (density != bitmapDensity) {
reader.skipValue(); // Skip width name.
reader.skipValue(); // Skip width value.
reader.skipValue(); // Skip height name.
reader.skipValue(); // Skip height value.
reader.skipValue(); // Skip rectangles name.
reader.skipValue(); // Skip rectangles array.
return false;
}
name = reader.nextName();
assert name.equals("width");
mSpriteWidth = reader.nextInt();
name = reader.nextName();
assert name.equals("height");
mSpriteHeight = reader.nextInt();
name = reader.nextName();
assert name.equals("rectangles");
parseFrameRectangles(reader);
return true;
}
private SnippetArticle readArticleDetails(JsonReader reader) throws IOException {
String headline = "";
String publisher = "";
String snippets = "";
String url = "";
String thumbnail = "";
reader.beginObject();
while (reader.hasNext()) {
String name = reader.nextName();
if (name.equals("headline")) {
headline = reader.nextString();
} else if (name.equals("publisher")) {
publisher = reader.nextString();
} else if (name.equals("snippet")) {
snippets = reader.nextString();
} else if (name.equals("url")) {
url = reader.nextString();
} else if (name.equals("thumbnail")) {
thumbnail = reader.nextString();
} else {
reader.skipValue();
}
}
reader.endObject();
return new SnippetsManager.SnippetArticle(
headline, publisher, snippets, url, thumbnail, mNumArticles++);
}
private void refreshEarthquakes() {
// Get the JSON
URL url;
try {
String quakeFeed = "http://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/2.5_day.geojson";
url = new URL(quakeFeed);
URLConnection connection;
connection = url.openConnection();
HttpURLConnection httpConnection = (HttpURLConnection) connection;
int responseCode = httpConnection.getResponseCode();
if (responseCode == HttpURLConnection.HTTP_OK) {
InputStream in = httpConnection.getInputStream();
JsonReader reader = new JsonReader(new InputStreamReader(in, "UTF-8"));
try {
// Clear the old earthquakes
earthquakes.clear();
readEarthquakes(reader);
} finally {
reader.close();
}
}
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
}
}
private void findHourlyWeather(final ForecastReport forecastReport, final boolean isSendReponse) {
HttpURLConnection urlConnection = null;
try {
LocationVO locationVO = forecastReport.locationVO;
URL url =
new URL(
String.format(
UtilServiceAPIs.API_WUNDERGROUND,
locationVO.getCountryCode().equals("US")
? locationVO.getStateCode()
: locationVO.getCountryCode(),
locationVO.getPlace()));
urlConnection = (HttpURLConnection) url.openConnection();
InputStream in = new BufferedInputStream(urlConnection.getInputStream());
JsonReader reader = new JsonReader(new InputStreamReader(in, "UTF-8"));
parseHourlyWeather(reader, forecastReport, isSendReponse);
reader.close();
in.close();
} catch (MalformedURLException e) {
e.printStackTrace();
return;
} catch (Exception e) {
e.printStackTrace();
} finally {
urlConnection.disconnect();
}
}
private void readFeaturesArray(JsonReader reader) throws IOException {
reader.beginArray();
while (reader.hasNext()) {
readErthquake(reader);
}
reader.endArray();
}
@Override
public void onMessage(int instanceId, String message) {
StringReader contents = new StringReader(message);
JsonReader reader = new JsonReader(contents);
int requestId = -1;
String cmd = null;
String url = null;
try {
reader.beginObject();
while (reader.hasNext()) {
String name = reader.nextName();
if (name.equals(TAG_CMD)) {
cmd = reader.nextString();
} else if (name.equals(TAG_REQUEST_ID)) {
requestId = reader.nextInt();
} else if (name.equals("url")) {
url = reader.nextString();
} else {
reader.skipValue();
}
}
reader.endObject();
reader.close();
if (cmd != null && cmd.equals(CMD_REQUEST_SHOW) && requestId >= 0) {
handleRequestShow(instanceId, url, requestId);
}
} catch (IOException e) {
Log.d(TAG, "Error: " + e);
}
}
@TargetApi(Build.VERSION_CODES.HONEYCOMB)
public Song parseSong(JsonReader jsonReader) {
Song song = new Song();
try {
jsonReader.beginObject();
while (jsonReader.hasNext()) {
String name = jsonReader.nextName();
if (name.equals(JSON_KEY_TRACKID)) {
song.setId(jsonReader.nextLong());
} else if (name.equals(JSON_KEY_ARTISTNAME)) {
song.setArtist(jsonReader.nextString());
} else if (name.equals(JSON_KEY_TRACKNAME)) {
song.setTitle(jsonReader.nextString());
} else if (name.equals(JSON_KEY_TRACKPRICE)) {
song.setPrice(jsonReader.nextDouble());
} else if (name.equals(JSON_KEY_TRACKCOVER)) {
song.setCoverURL(jsonReader.nextString());
} else {
jsonReader.skipValue();
}
}
jsonReader.endObject();
} catch (IOException e) {
}
return song;
}
/** Parse metric array */
void parseArray() throws IOException {
_reader.beginArray();
while (_reader.hasNext()) {
parseBody();
}
_reader.endArray();
}
/** Peeks at the next token and returns a {@link Boolean} or {@code null} */
Boolean nextBooleanOrNull() throws IOException {
if (_reader.peek() == JsonToken.NULL) {
_reader.nextNull();
return null;
}
return _reader.nextBoolean();
}
/** Peeks at the next token and returns a {@link String} or {@code null} */
String nextStringOrNull() throws IOException {
if (_reader.peek() == JsonToken.NULL) {
_reader.nextNull();
return null;
}
return _reader.nextString();
}
/**
* Parses the raw JSON resource specified by {@code metadataResId}. The JSON is expected to be in
* this format: { "apiVersion": <version number (string)>, "densities": [ { "density": <density
* (int)>, "width": <unscaled sprite width (int)>, "height": <unscaled sprite height (int)>,
* "rectangles": [ [<list of ints for frame 0>], [<list of ints for frame 1>], ...... ] }, {
* "density": <density (int)>, "width": <unscaled sprite width (int)>, "height": <unscaled sprite
* height (int)>, "rectangles": [ [<list of ints for frame 0>], [<list of ints for frame 1>],
* ...... ] }, ...... ] }
*
* @param metadataResId The id of the raw resource containing JSON to parse.
* @param bitmapDensity The density of the unscaled {@link Bitmap} that was loaded.
* @param resources A {@link Resources} instance to load assets from.
* @throws IOException
*/
@VisibleForTesting
void parseMetadata(int metadataResId, int bitmapDensity, Resources resources) throws IOException {
InputStream inputStream = resources.openRawResource(metadataResId);
JsonReader reader = new JsonReader(new InputStreamReader(inputStream));
try {
reader.beginObject(); // Start reading top-level object.
// Check apiVersion.
String name = reader.nextName();
assert name.equals("apiVersion");
String version = reader.nextString();
assert version.equals("1.0");
// Parse array of densities.
name = reader.nextName();
assert name.equals("densities");
reader.beginArray(); // Start reading array of densities.
while (reader.hasNext()) {
reader.beginObject(); // Start reading object for this density.
boolean foundDensity = parseMetadataForDensity(reader, bitmapDensity);
reader.endObject(); // Stop reading object for this density.
if (foundDensity) break;
}
} finally {
reader.close();
inputStream.close();
}
}
private void readErthquake(JsonReader reader) throws IOException {
String s;
reader.beginObject();
while (reader.hasNext()) {
s = reader.nextName();
if (s.equals("properties")) {
readProperties(reader);
} else if (s.equals("geometry")) {
readGeometry(reader);
} else {
reader.skipValue();
}
}
reader.endObject();
final Quake quake = new Quake(date, details, location, magnitude, link);
// Process a newly found earthquake
handler.post(
new Runnable() {
public void run() {
addNewQuake(quake);
}
});
}
private void readJsonStream(InputStream in) throws IOException {
JsonReader reader = new JsonReader(new InputStreamReader(in, "UTF-8"));
try {
readMessagesArray(reader);
} finally {
reader.close();
}
}
private List<SnippetListItem> readJsonStream(InputStream in) throws IOException {
JsonReader reader = new JsonReader(new InputStreamReader(in, "UTF-8"));
try {
return readRecommendationsArray(reader);
} finally {
reader.close();
}
}
private void readArticlesArray(List<SnippetListItem> listSnippetItems, JsonReader reader)
throws IOException {
reader.beginArray();
while (reader.hasNext()) {
listSnippetItems.add(readArticleDetails(reader));
}
reader.endArray();
}
private List<Source> readSources(JsonReader reader) throws IOException {
List<Source> sourceList = new ArrayList<>();
reader.beginArray();
while (reader.hasNext()) {
sourceList.add(new Source(readSource(reader), null));
}
reader.endArray();
return sourceList;
}
private List readHitsArray(JsonReader reader) throws IOException {
List hits = new ArrayList<FoodResult>();
reader.beginArray();
while (reader.hasNext()) {
hits.add(readHitObject(reader));
}
reader.endArray();
return hits;
}
public ArrayList parse(InputStream in) throws IOException {
JsonReader reader = new JsonReader(new InputStreamReader(in, "UTF-8"));
try {
return readMessagesArray(reader);
} finally {
reader.close();
}
}
private List<LatLng> readLatLngArray(JsonReader reader) throws IOException {
List<LatLng> latlngpath = new ArrayList();
reader.beginArray();
while (reader.hasNext()) {
latlngpath.add(readLatLngPoint(reader));
}
reader.endArray();
return latlngpath;
}
public List<Image> readImagesArray(JsonReader reader) throws IOException {
List<Image> images = new ArrayList<>();
reader.beginArray();
while (reader.hasNext()) {
images.add(readImage(reader));
}
reader.endArray();
return images;
}
public List<Msg> readMsgs(JsonReader reader) throws IOException {
List<Msg> msgList = new ArrayList<>();
reader.beginArray();
while (reader.hasNext()) {
msgList.add(readMsg(reader));
}
reader.endArray();
return msgList;
}
private FoodResult readHitObject(JsonReader reader) throws IOException {
FoodResult food = new FoodResult();
reader.beginObject();
while (reader.hasNext()) {
String name = reader.nextName();
if (name.equals("_index")) {
String index = reader.nextString();
// we currently do nothing with this value
} else if (name.equals("_type")) {
String type = reader.nextString();
// we currently do nothing with this value
} else if (name.equals("_id")) {
food.id = reader.nextString();
} else if (name.equals("_score")) {
double score = reader.nextDouble();
// we currently do nothing with this value
} else if (name.equals("fields")) {
readHitFields(reader, food);
} else {
reader.skipValue();
}
}
reader.endObject();
return food;
}
public Repo readMessage(JsonReader reader) throws IOException {
repo = new Repo();
reader.beginObject();
while (reader.hasNext()) {
String name = reader.nextName();
if (name.equals("name")) {
repo.setName(reader.nextString());
} else if (name.equals("description")) {
repo.setDescription(reader.nextString());
} else if (name.equals("owner")) {
ReadOwnerMessage(reader);
} else if (name.equals("html_url")) {
repo.setRepo_url(reader.nextString());
} else if (name.equals("fork")) {
repo.setFork(reader.nextBoolean());
} else {
reader.skipValue();
}
}
reader.endObject();
return repo;
}
@TargetApi(Build.VERSION_CODES.HONEYCOMB)
public ArrayList<Song> parseSongList(JsonReader jsonReader) {
ArrayList<Song> songList = new ArrayList<Song>();
try {
jsonReader.beginObject();
while (jsonReader.hasNext()) {
String name = jsonReader.nextName();
if (name.equals(JSON_KEY_RESULTS) && jsonReader.peek() != JsonToken.NULL) {
jsonReader.beginArray();
while (jsonReader.hasNext()) {
Song song = parseSong(jsonReader);
if (song != null) {
songList.add(song);
}
}
jsonReader.endArray();
} else {
jsonReader.skipValue();
}
}
jsonReader.endObject();
} catch (IOException e) {
}
return songList;
}
public Promotion parsePromotion(JsonReader jsonReader) {
Promotion promo = new Promotion();
try {
jsonReader.beginObject();
while (jsonReader.hasNext()) {
String name = jsonReader.nextName();
if (name.equals(JSON_KEY_BUTTON)) {
promo.setButton(parseButton(jsonReader));
} else if (name.equals(JSON_KEY_DESCRIPTION)) {
promo.setDescription(jsonReader.nextString());
} else if (name.equals(JSON_KEY_FOOTER)) {
promo.setFooter(jsonReader.nextString());
} else if (name.equals(JSON_KEY_TITLE)) {
promo.setTitle(jsonReader.nextString());
} else if (name.equals(JSON_KEY_IMAGE)) {
promo.setImage(jsonReader.nextString());
} else {
jsonReader.skipValue();
}
}
jsonReader.endObject();
} catch (IOException e) {
}
return promo;
}
private void parseWeatherFormWeather(JsonReader reader) throws IOException {
Log.d(TAG, "Entering parseWeatherFormWeather");
reader.beginArray();
reader.beginObject();
try {
while (reader.hasNext()) {
String name = reader.nextName();
switch (name) {
case JsonWeatherTokens.DESCRIPTION:
weatherData.setWeather(reader.nextString());
break;
case JsonWeatherTokens.ICON:
weatherData.setIcon(reader.nextString());
break;
default:
reader.skipValue();
break;
}
}
} finally {
reader.endObject();
reader.endArray();
}
}
public ArrayList<Promotion> parsePromotionList(JsonReader jsonReader) {
ArrayList<Promotion> promoList = new ArrayList<Promotion>();
try {
jsonReader.beginObject();
while (jsonReader.hasNext()) {
String name = jsonReader.nextName();
if (name.equals(JSON_KEY_PROMOTIONS) && jsonReader.peek() != JsonToken.NULL) {
jsonReader.beginArray();
while (jsonReader.hasNext()) {
Promotion promo = parsePromotion(jsonReader);
if (promo != null) {
promoList.add(promo);
}
}
jsonReader.endArray();
} else {
jsonReader.skipValue();
}
}
jsonReader.endObject();
} catch (IOException e) {
}
return promoList;
}
public ArrayList readMessagesArray(JsonReader reader) throws IOException {
ArrayList repos = new ArrayList();
reader.beginArray();
while (reader.hasNext()) {
repos.add(readMessage(reader));
}
reader.endArray();
return repos;
}
private List<SnippetListItem> readRecommendationsArray(JsonReader reader) throws IOException {
List<SnippetListItem> listSnippetItems = new ArrayList<SnippetListItem>();
mNumArticles = 0;
reader.beginArray();
while (reader.hasNext()) {
readSnippetGroup(listSnippetItems, reader);
}
reader.endArray();
RecordHistogram.recordSparseSlowlyHistogram("NewTabPage.Snippets.NumArticles", mNumArticles);
return listSnippetItems;
}
