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

List of usage examples for com.google.gson.stream JsonReader nextName

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Introduction

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

Prototype

public String nextName() throws IOException

Source Link

Document

Returns the next token, a com.google.gson.stream.JsonToken#NAME property name , and consumes it.

Usage

From source file:com.google.maps.internal.GeolocationResponseAdapter.java

License:Open Source License

@Override
public GeolocationApi.Response read(JsonReader reader) throws IOException {

    if (reader.peek() == JsonToken.NULL) {
        reader.nextNull();/*from  w w w. ja v  a 2 s  .c  o m*/
        return null;
    }
    GeolocationApi.Response response = new GeolocationApi.Response();
    LatLngAdapter latLngAdapter = new LatLngAdapter();

    reader.beginObject(); // opening {
    while (reader.hasNext()) {
        String name = reader.nextName();
        // two different objects could be returned a success object containing "location" and "accuracy"
        // keys or an error object containing an "error" key
        if (name.equals("location")) {
            // we already have a parser for the LatLng object so lets use that
            response.location = latLngAdapter.read(reader);
        } else if (name.equals("accuracy")) {
            response.accuracy = reader.nextDouble();
        } else if (name.equals("error")) {
            reader.beginObject(); // the error key leads to another object...
            while (reader.hasNext()) {
                String errName = reader.nextName();
                // ...with keys "errors", "code" and "message"
                if (errName.equals("code")) {
                    response.code = reader.nextInt();
                } else if (errName.equals("message")) {
                    response.message = reader.nextString();
                } else if (errName.equals("errors")) {
                    reader.beginArray(); // its plural because its an array of errors...
                    while (reader.hasNext()) {
                        reader.beginObject();// ...and each error array element is an object...
                        while (reader.hasNext()) {
                            errName = reader.nextName();
                            // ...with keys "reason", "domain", "debugInfo", "location", "locationType",  and "message" (again)
                            if (errName.equals("reason")) {
                                response.reason = reader.nextString();
                            } else if (errName.equals("domain")) {
                                response.domain = reader.nextString();
                            } else if (errName.equals("debugInfo")) {
                                response.debugInfo = reader.nextString();
                            } else if (errName.equals("message")) {
                                // have this already
                                reader.nextString();
                            } else if (errName.equals("location")) {
                                reader.nextString();
                            } else if (errName.equals("locationType")) {
                                reader.nextString();
                            }
                        }
                        reader.endObject();
                    }
                    reader.endArray();
                }
            }
            reader.endObject(); // closing }
        }
    }
    reader.endObject();
    return response;
}

From source file:com.google.maps.internal.LatLngAdapter.java

License:Open Source License

/**
 * Reads in a JSON object and try to create a LatLng in one of the following formats.
 *
 * <pre>{//from ww w.  ja  va  2s  .c om
 *   "lat" : -33.8353684,
 *   "lng" : 140.8527069
 * }
 *
 * {
 *   "latitude": -33.865257570508334,
 *   "longitude": 151.19287000481452
 * }</pre>
 */
@Override
public LatLng read(JsonReader reader) throws IOException {
    if (reader.peek() == JsonToken.NULL) {
        reader.nextNull();
        return null;
    }

    double lat = 0;
    double lng = 0;
    boolean hasLat = false;
    boolean hasLng = false;

    reader.beginObject();
    while (reader.hasNext()) {
        String name = reader.nextName();
        if ("lat".equals(name) || "latitude".equals(name)) {
            lat = reader.nextDouble();
            hasLat = true;
        } else if ("lng".equals(name) || "longitude".equals(name)) {
            lng = reader.nextDouble();
            hasLng = true;
        }
    }
    reader.endObject();

    if (hasLat && hasLng) {
        return new LatLng(lat, lng);
    } else {
        return null;
    }
}

From source file:com.google.samples.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.jav  a2  s.co m
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 {
                LOGW(TAG, "Skipping unknown key in conference data json: " + key);
                reader.skipValue();
            }
        }
        reader.endObject();
    } finally {
        reader.close();
    }
}

From source file:com.google.samples.apps.iosched.sync.userdata.util.UserActionHelper.java

License:Open Source License

public static List<UserAction> deserializeUserActions(String str) {
    try {/*from   www  . j a v a 2 s .  co m*/
        ArrayList<UserAction> actions = new ArrayList<UserAction>();
        JsonReader reader = new JsonReader(new StringReader(str));
        reader.beginArray();
        while (reader.hasNext()) {
            reader.beginObject();
            UserAction action = new UserAction();
            while (reader.hasNext()) {
                String key = reader.nextName();
                if ("type".equals(key)) {
                    action.type = UserAction.TYPE.valueOf(reader.nextString());
                } else if ("id".equals(key)) {
                    action.sessionId = reader.nextString();
                } else {
                    throw new RuntimeException("Invalid key " + key + " in serialized UserAction: " + str);
                }
            }
            reader.endObject();
            actions.add(action);
        }
        reader.endArray();
        return actions;
    } catch (IOException ex) {
        throw new RuntimeException("Error deserializing UserActions: " + str, ex);
    }
}

From source file:com.google.samples.apps.iosched.sync.userdata.util.UserDataHelper.java

License:Open Source License

static public Set<String> fromString(String str) {
    TreeSet<String> result = new TreeSet<String>();
    if (str == null || str.isEmpty()) {
        return result;
    }// w w  w.j  ava 2  s . c o  m
    try {
        JsonReader reader = new JsonReader(new StringReader(str));
        reader.beginObject();
        while (reader.hasNext()) {
            String key = reader.nextName();
            if (JSON_STARRED_SESSIONS_KEY.equals(key)) {
                reader.beginArray();
                while (reader.hasNext()) {
                    result.add(reader.nextString());
                }
                reader.endArray();
            } else {
                reader.skipValue();
            }
        }
        reader.endObject();
        reader.close();
    } catch (Exception ex) {
        Log.w(TAG, "Ignoring invalid remote content.", ex);
        return null;
    }
    return result;
}

From source file:com.greensopinion.finance.services.persistence.CategoriesTypeAdapter.java

License:Apache License

@Override
public Categories read(JsonReader reader) throws IOException {
    reader.beginObject();//from  w w  w . j a v a2s  .c o m
    checkState(NAME_CATEGORIES.equals(reader.nextName()));
    reader.beginArray();

    ImmutableList.Builder<Category> elements = ImmutableList.<Category>builder();
    while (reader.hasNext()) {
        if (reader.peek() == JsonToken.BEGIN_OBJECT) {
            elements.add(gson.getAdapter(Category.class).read(reader));
        } else {
            elements.add(readCategory(reader.nextString()));
        }
    }
    reader.endArray();
    reader.endObject();

    return new Categories(elements.build());
}

From source file:com.greensopinion.finance.services.persistence.TransactionsTypeAdapter.java

License:Apache License

@Override
public Transactions read(JsonReader reader) throws IOException {
    reader.beginObject();// w w  w.  j a  v a2s .c  o  m
    checkState(reader.nextName().equals(NAME_TRANSACTIONS));
    reader.beginArray();

    ImmutableList.Builder<Transaction> elements = ImmutableList.builder();
    while (reader.hasNext()) {
        elements.add(readTransaction(reader.nextString()));
    }

    reader.endArray();
    reader.endObject();
    return new Transactions(elements.build());
}

From source file:com.gs.reladomo.serial.gson.GsonWrappedListTypedAdapter.java

License:Apache License

@Override
public SerializedList<U, T> read(JsonReader jsonReader) throws IOException {
    ReladomoDeserializer deserializer;/*from w ww.java  2s.  co m*/
    if (this.typeClass == null) {
        deserializer = new ReladomoDeserializer();
    } else {
        deserializer = new ReladomoDeserializer(typeClass);
    }
    deserializer.setIgnoreUnknown();
    JsonDeserializerState state = JsonDeserializerState.ListStartState.INSTANCE;
    while (true) {
        JsonToken nextToken = jsonReader.peek();
        //BEGIN_ARRAY, END_ARRAY, BEGIN_OBJECT, END_OBJECT, NAME, STRING, NUMBER, BOOLEAN, NULL, END_DOCUMENT;
        if (JsonToken.BEGIN_OBJECT == nextToken) {
            jsonReader.beginObject();
            state = state.startObject(deserializer);
        } else if (JsonToken.END_OBJECT == nextToken) {
            jsonReader.endObject();
            state = state.endObject(deserializer);
        } else if (JsonToken.BEGIN_ARRAY == nextToken) {
            jsonReader.beginArray();
            state = state.startArray(deserializer);
        } else if (JsonToken.END_ARRAY == nextToken) {
            jsonReader.endArray();
            state = state.endArray(deserializer);
        } else if (JsonToken.BOOLEAN == nextToken) {
            if (jsonReader.nextBoolean()) {
                state = state.valueTrue(deserializer);
            } else {
                state = state.valueFalse(deserializer);
            }
        } else if (JsonToken.NAME == nextToken) {
            String name = jsonReader.nextName();
            state = state.fieldName(name, deserializer);
        } else if (JsonToken.NUMBER == nextToken) {
            String value = jsonReader.nextString();
            state = state.valueString(value, deserializer); // we do the parsing to avoid precision loss
        } else if (JsonToken.STRING == nextToken) {
            String value = jsonReader.nextString();
            Attribute attribute = deserializer.getCurrentAttribute();
            if (attribute instanceof TimestampAttribute) {
                Timestamp timestamp = GsonReladomoTypeAdapterSerialWriter.jsonToTimestamp(value);
                state = state.valueTimestamp(timestamp, deserializer);
            } else {
                state = state.valueString(value, deserializer);
            }
        } else if (JsonToken.NULL == nextToken) {
            jsonReader.nextNull();
            state = state.valueNull(deserializer);
        } else if (JsonToken.END_DOCUMENT == nextToken) {
            break;
        }
    }
    return deserializer.getDeserializedResultAsList();
}

From source file:com.gs.reladomo.serial.gson.GsonWrappedTypedAdapter.java

License:Apache License

@Override
public Serialized<T> read(JsonReader jsonReader) throws IOException {
    ReladomoDeserializer deserializer;//w w  w  . j a  v a2s  . co  m
    if (this.typeClass == null) {
        deserializer = new ReladomoDeserializer();
    } else {
        deserializer = new ReladomoDeserializer(typeClass);
    }
    deserializer.setIgnoreUnknown();
    JsonDeserializerState state = JsonDeserializerState.NormalParserState.INSTANCE;
    while (true) {
        JsonToken nextToken = jsonReader.peek();
        //BEGIN_ARRAY, END_ARRAY, BEGIN_OBJECT, END_OBJECT, NAME, STRING, NUMBER, BOOLEAN, NULL, END_DOCUMENT;
        if (JsonToken.BEGIN_OBJECT == nextToken) {
            jsonReader.beginObject();
            state = state.startObject(deserializer);
        } else if (JsonToken.END_OBJECT == nextToken) {
            jsonReader.endObject();
            state = state.endObject(deserializer);
        } else if (JsonToken.BEGIN_ARRAY == nextToken) {
            jsonReader.beginArray();
            state = state.startArray(deserializer);
        } else if (JsonToken.END_ARRAY == nextToken) {
            jsonReader.endArray();
            state = state.endArray(deserializer);
        } else if (JsonToken.BOOLEAN == nextToken) {
            if (jsonReader.nextBoolean()) {
                state = state.valueTrue(deserializer);
            } else {
                state = state.valueFalse(deserializer);
            }
        } else if (JsonToken.NAME == nextToken) {
            String name = jsonReader.nextName();
            state = state.fieldName(name, deserializer);
        } else if (JsonToken.NUMBER == nextToken) {
            String value = jsonReader.nextString();
            state = state.valueString(value, deserializer); // we do the parsing to avoid precision loss
        } else if (JsonToken.STRING == nextToken) {
            String value = jsonReader.nextString();
            Attribute attribute = deserializer.getCurrentAttribute();
            if (attribute instanceof TimestampAttribute) {
                Timestamp timestamp = GsonReladomoTypeAdapterSerialWriter.jsonToTimestamp(value);
                state = state.valueTimestamp(timestamp, deserializer);
            } else {
                state = state.valueString(value, deserializer);
            }
        } else if (JsonToken.NULL == nextToken) {
            jsonReader.nextNull();
            state = state.valueNull(deserializer);
        } else if (JsonToken.END_DOCUMENT == nextToken) {
            break;
        }
    }
    return deserializer.getDeserializedResult();
}

From source file:com.hichinaschool.flashcards.async.DeckTask.java

License:Open Source License

private TaskData doInBackgroundImportReplace(TaskData... params) {
    // Log.i(AnkiDroidApp.TAG, "doInBackgroundImportReplace");
    Collection col = params[0].getCollection();
    String path = params[0].getString();
    Resources res = AnkiDroidApp.getInstance().getBaseContext().getResources();

    // extract the deck from the zip file
    String fileDir = AnkiDroidApp.getCurrentAnkiDroidDirectory() + "/tmpzip";
    File dir = new File(fileDir);
    if (dir.exists()) {
        BackupManager.removeDir(dir);/*  w w w. ja  v a  2 s .  c  o m*/
    }

    publishProgress(new TaskData(res.getString(R.string.import_unpacking)));
    // from anki2.py
    String colFile = fileDir + "/collection.anki2";
    ZipFile zip;
    try {
        zip = new ZipFile(new File(path), ZipFile.OPEN_READ);
    } catch (IOException e) {
        Log.e(AnkiDroidApp.TAG, "doInBackgroundImportReplace - Error while unzipping: ", e);
        AnkiDroidApp.saveExceptionReportFile(e, "doInBackgroundImportReplace0");
        return new TaskData(false);
    }
    if (!Utils.unzipFiles(zip, fileDir, new String[] { "collection.anki2", "media" }, null)
            || !(new File(colFile)).exists()) {
        return new TaskData(-2, null, false);
    }

    Collection tmpCol = null;
    try {
        tmpCol = Storage.Collection(colFile);
        if (!tmpCol.validCollection()) {
            tmpCol.close();
            return new TaskData(-2, null, false);
        }
    } finally {
        if (tmpCol != null) {
            tmpCol.close();
        }
    }

    publishProgress(new TaskData(res.getString(R.string.importing_collection)));
    String colPath;
    if (col != null) {
        // unload collection and trigger a backup
        colPath = col.getPath();
        AnkiDroidApp.closeCollection(true);
        BackupManager.performBackup(colPath, true);
    }
    // overwrite collection
    colPath = AnkiDroidApp.getCollectionPath();
    File f = new File(colFile);
    f.renameTo(new File(colPath));
    int addedCount = -1;
    try {
        col = AnkiDroidApp.openCollection(colPath);

        // because users don't have a backup of media, it's safer to import new
        // data and rely on them running a media db check to get rid of any
        // unwanted media. in the future we might also want to duplicate this step
        // import media
        HashMap<String, String> nameToNum = new HashMap<String, String>();
        HashMap<String, String> numToName = new HashMap<String, String>();
        File mediaMapFile = new File(fileDir, "media");
        if (mediaMapFile.exists()) {
            JsonReader jr = new JsonReader(new FileReader(mediaMapFile));
            jr.beginObject();
            String name;
            String num;
            while (jr.hasNext()) {
                num = jr.nextName();
                name = jr.nextString();
                nameToNum.put(name, num);
                numToName.put(num, name);
            }
            jr.endObject();
            jr.close();
        }
        String mediaDir = col.getMedia().getDir();
        int total = nameToNum.size();
        int i = 0;
        for (Map.Entry<String, String> entry : nameToNum.entrySet()) {
            String file = entry.getKey();
            String c = entry.getValue();
            File of = new File(mediaDir, file);
            if (!of.exists()) {
                Utils.unzipFiles(zip, mediaDir, new String[] { c }, numToName);
            }
            ++i;
            publishProgress(new TaskData(res.getString(R.string.import_media_count, (i + 1) * 100 / total)));
        }
        zip.close();
        // delete tmp dir
        BackupManager.removeDir(dir);

        publishProgress(new TaskData(res.getString(R.string.import_update_counts)));
        // Update the counts
        DeckTask.TaskData result = doInBackgroundLoadDeckCounts(new TaskData(col));
        if (result == null) {
            return null;
        }
        return new TaskData(addedCount, result.getObjArray(), true);
    } catch (RuntimeException e) {
        Log.e(AnkiDroidApp.TAG, "doInBackgroundImportReplace - RuntimeException: ", e);
        AnkiDroidApp.saveExceptionReportFile(e, "doInBackgroundImportReplace1");
        return new TaskData(false);
    } catch (FileNotFoundException e) {
        Log.e(AnkiDroidApp.TAG, "doInBackgroundImportReplace - FileNotFoundException: ", e);
        AnkiDroidApp.saveExceptionReportFile(e, "doInBackgroundImportReplace2");
        return new TaskData(false);
    } catch (IOException e) {
        Log.e(AnkiDroidApp.TAG, "doInBackgroundImportReplace - IOException: ", e);
        AnkiDroidApp.saveExceptionReportFile(e, "doInBackgroundImportReplace3");
        return new TaskData(false);
    }
}