Example usage for com.google.gson.stream JsonReader JsonReader

Introduction

In this page you can find the example usage for com.google.gson.stream JsonReader JsonReader.

Prototype

public JsonReader(Reader in)

Source Link

Document

Creates a new instance that reads a JSON-encoded stream from in .

Usage

From source file:com.pets.core.petstore.data.store.JSONSerializer.java

License:Apache License

/**
 * Deserialize the given JSON string to Java object.
 *
 * @param <T> Type/*ww  w.  j a v a2  s  .c om*/
 * @param body The JSON string
 * @param returnType The type to deserialize inot
 * @return The deserialized Java object
 */
@SuppressWarnings("unchecked")
public <T> T deserialize(String body, Type returnType) {
    try {
        if (apiClient.isLenientOnJson()) {
            JsonReader jsonReader = new JsonReader(new StringReader(body));
            // see https://google-gson.googlecode.com/svn/trunk/gson/docs/javadocs/com/google/gson/stream/JsonReader.html#setLenient(boolean)
            jsonReader.setLenient(true);
            return gson.fromJson(jsonReader, returnType);
        } else {
            return gson.fromJson(body, returnType);
        }
    } catch (JsonParseException e) {
        // Fallback processing when failed to parse JSON from response body:
        // return the raw body
        return (T) body;
    }
}

From source file:com.pocketbeer.presentation.flow.GsonParceler.java

License:Apache License

private Object decode(String json) throws IOException {
    JsonReader reader = new JsonReader(new StringReader(json));

    try {//  www .j a  v  a2  s .  co m
        reader.beginObject();

        Class<?> type = Class.forName(reader.nextName());
        return mGson.fromJson(reader, type);
    } catch (ClassNotFoundException e) {
        throw new RuntimeException(e);
    } finally {
        reader.close();
    }
}

From source file:com.psygate.vanguard.storage.VanguardFileStorage.java

License:Open Source License

@Override
public PlayerSettings getPlayerSettings(UUID playerid) {
    if (!Files.exists(getUserFile(playerid))) {
        throw new IllegalArgumentException();
    }//  w w  w.j  av  a 2  s.  c o  m

    try (JsonReader writer = new JsonReader(new FileReader(getUserFile(playerid).toFile()))) {
        return bgson.create().fromJson(writer, PlayerSettings.class);
    } catch (IOException ex) {
        throw new RuntimeException(ex);
    }
}

From source file:com.ptapp.sync.PTAppDataHandler.java

License:Open Source License

/**
 * Processes a conference data body and calls the appropriate data type handlers
 * to process each of the objects represented therein.
 *
 * @param dataBody The body of data to process
 * @throws java.io.IOException If there is an error parsing the data.
 *///w w w. j  av  a 2s .  com
private void processDataBody(String dataBody) throws IOException {
    JsonReader reader = new JsonReader(new StringReader(dataBody));
    JsonParser parser = new JsonParser();
    try {
        reader.setLenient(true); // To err is human

        // the whole file is a single JSON object
        reader.beginObject();

        while (reader.hasNext()) {
            // the key is "educators", "courses", "students", "events" etc.
            String key = reader.nextName();
            if (mHandlerForKey.containsKey(key)) {
                // pass the value to the corresponding handler
                mHandlerForKey.get(key).process(parser.parse(reader));
            } else {
                LOGW(TAG, "Skipping unknown key in ptapp data json: " + key);
                reader.skipValue();
            }
        }
        reader.endObject();
    } finally {
        reader.close();
    }
}

From source file:com.publicobject.roundsweb.PostServlet.java

License:Apache License

@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    URL requestUrl = new URL(request.getRequestURL().toString());

    Reader reader = new InputStreamReader(request.getInputStream(), "UTF-8");
    JsonReader jsonReader = new JsonReader(reader);
    Game game = gson.fromJson(jsonReader, Game.class);
    long gameId = storeGame(game);

    response.setContentType("text/plain");
    Writer writer = new OutputStreamWriter(response.getOutputStream(), "UTF-8");
    URL gameUrl = new URL(requestUrl, String.format("/%d", gameId));
    writer.write(gameUrl.toString());// ww w .j  a v  a2 s  . c o  m
    writer.close();
}

From source file:com.quarterfull.newsAndroid.reader.owncloud.OwnCloudReaderMethods.java

License:Open Source License

/**
 * can parse json like {"items":[{"id":6782}]}
 * @param in/*  ww w  .  j a  va  2s.  c  o m*/
 * @param iJoBj
 * @return count all, count new items
 * @throws IOException
 */
public static int[] readJsonStreamV2(InputStream in, IHandleJsonObject iJoBj) throws IOException {
    List<String> allowedArrays = Arrays.asList("feeds", "folders", "items");

    int count = 0;
    int newItemsCount = 0;
    JsonReader reader = new JsonReader(new InputStreamReader(in, "UTF-8"));
    reader.beginObject();

    String currentName;
    while (reader.hasNext() && (currentName = reader.nextName()) != null) {
        if (allowedArrays.contains(currentName))
            break;
        else
            reader.skipValue();
    }

    reader.beginArray();
    while (reader.hasNext()) {
        JSONObject e = getJSONObjectFromReader(reader);

        if (iJoBj.performAction(e))
            newItemsCount++;

        count++;
    }

    if (iJoBj instanceof InsertItemIntoDatabase)
        ((InsertItemIntoDatabase) iJoBj).performDatabaseBatchInsert(); //Save pending buffer

    //reader.endArray();
    //reader.endObject();
    reader.close();

    return new int[] { count, newItemsCount };
}

From source file:com.quarterfull.newsAndroid.reader.owncloud.OwnCloudReaderMethods.java

License:Open Source License

/**
 * can parse json like {"items":[{"id":6782}]}
 * @param in//from  w  w w  . j  ava 2s.c  o  m
 * @param iJoBj
 * @return new int[] { count, newItemsCount }
 * @throws IOException
 */
public static int[] readJsonStreamV1(InputStream in, IHandleJsonObject iJoBj) throws IOException {
    int count = 0;
    int newItemsCount = 0;
    JsonReader reader = new JsonReader(new InputStreamReader(in, "UTF-8"));
    reader.beginObject();//{
    reader.nextName();//"ocs"
    reader.beginObject();//{
    reader.nextName();//meta

    getJSONObjectFromReader(reader);//skip status etc.

    reader.nextName();//data
    reader.beginObject();//{
    reader.nextName();//folders etc..

    reader.beginArray();
    while (reader.hasNext()) {
        //reader.beginObject();

        JSONObject e = getJSONObjectFromReader(reader);

        if (iJoBj.performAction(e))
            newItemsCount++;

        //reader.endObject();
        count++;
    }

    if (iJoBj instanceof InsertItemIntoDatabase)
        ((InsertItemIntoDatabase) iJoBj).performDatabaseBatchInsert(); //Save pending buffer

    //reader.endArray();
    //reader.endObject();
    reader.close();

    return new int[] { count, newItemsCount };
}

From source file:com.quarterfull.newsAndroid.reader.owncloud.OwnCloudReaderMethods.java

License:Open Source License

/**
 * can read json like {"version":"1.101"}
 * @param in/* w w  w . j  a  v a 2s .  co m*/
 * @param iJoBj
 * @return
 * @throws IOException
 */
private static int readJsonStreamSimple(InputStream in, IHandleJsonObject iJoBj) throws IOException {
    int count = 0;
    JsonReader reader = new JsonReader(new InputStreamReader(in, "UTF-8"));
    //reader.setLenient(true);

    //JsonToken token = reader.peek();
    //while(token.equals(JsonToken.STRING))
    //   reader.skipValue();

    JSONObject e = getJSONObjectFromReader(reader);
    iJoBj.performAction(e);

    reader.close();

    return count;
}

From source file:com.razza.apps.iosched.sync.ConferenceDataHandler.java

License:Open Source License

/**
 * Processes a conference data body and calls the appropriate data type handlers
 * to process each of the objects represented therein.
 *
 * @param dataBody The body of data to process
 * @throws IOException If there is an error parsing the data.
 *//*from  w  w w.ja va2 s .  c  om*/
private void processDataBody(String dataBody) throws IOException {
    JsonReader reader = new JsonReader(new StringReader(dataBody));
    JsonParser parser = new JsonParser();
    try {
        reader.setLenient(true); // To err is human

        // the whole file is a single JSON object
        reader.beginObject();

        while (reader.hasNext()) {
            // the key is "rooms", "speakers", "tracks", etc.
            String key = reader.nextName();
            if (mHandlerForKey.containsKey(key)) {
                // pass the value to the corresponding handler
                mHandlerForKey.get(key).process(parser.parse(reader));
            } else {
                LogUtils.LOGW(TAG, "Skipping unknown key in conference data json: " + key);
                reader.skipValue();
            }
        }
        reader.endObject();
    } finally {
        reader.close();
    }
}

From source file:com.registrodevisitas.services.CausasServices.java

public void generarListaDeCausasDeCache() throws FileNotFoundException, IOException {

    logger.info("CausasServices:generarListaDeCausasDeCache: BEGIN ");

    Gson gson = new Gson();

    JsonReader jsonReader = new JsonReader(new FileReader(this.cacheFile));

    final ListaDeCausas listaDecausas = gson.fromJson(jsonReader, ListaDeCausas.class);

    jsonReader.close();//from   w ww .  j  a  v  a2s  .  c o  m

    listaDecausas.sortCauses();

    causas.addAll(listaDecausas.getCausas());

    listaDecausas.getCausas().clear();

    logger.info("CausasServices:generarListaDeCausasDeCache: END ");

}