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

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

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Introduction

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

Prototype

public boolean hasNext() throws IOException

Source Link

Document

Returns true if the current array or object has another element.

Usage

From source file:com.sap.core.odata.core.ep.consumer.JsonPropertyConsumer.java

License:Apache License

@SuppressWarnings("unchecked")
private Object readComplexProperty(final JsonReader reader, final EntityComplexPropertyInfo complexPropertyInfo,
        final Object typeMapping) throws EdmException, EntityProviderException, IOException {
    if (reader.peek().equals(JsonToken.NULL)) {
        reader.nextNull();//w w w  . j ava2s  . co  m
        if (complexPropertyInfo.isMandatory()) {
            throw new EntityProviderException(
                    EntityProviderException.INVALID_PROPERTY_VALUE.addContent(complexPropertyInfo.getName()));
        }
        return null;
    }

    reader.beginObject();
    Map<String, Object> data = new HashMap<String, Object>();

    Map<String, Object> mapping;
    if (typeMapping != null) {
        if (typeMapping instanceof Map) {
            mapping = (Map<String, Object>) typeMapping;
        } else {
            throw new EntityProviderException(
                    EntityProviderException.INVALID_MAPPING.addContent(complexPropertyInfo.getName()));
        }
    } else {
        mapping = new HashMap<String, Object>();
    }

    while (reader.hasNext()) {
        String childName = reader.nextName();
        if (FormatJson.METADATA.equals(childName)) {
            reader.beginObject();
            childName = reader.nextName();
            if (!FormatJson.TYPE.equals(childName)) {
                throw new EntityProviderException(EntityProviderException.MISSING_ATTRIBUTE
                        .addContent(FormatJson.TYPE).addContent(FormatJson.METADATA));
            }
            String actualTypeName = reader.nextString();
            String expectedTypeName = complexPropertyInfo.getType().getNamespace() + Edm.DELIMITER
                    + complexPropertyInfo.getType().getName();
            if (!expectedTypeName.equals(actualTypeName)) {
                throw new EntityProviderException(EntityProviderException.INVALID_ENTITYTYPE
                        .addContent(expectedTypeName).addContent(actualTypeName));
            }
            reader.endObject();
        } else {
            EntityPropertyInfo childPropertyInfo = complexPropertyInfo.getPropertyInfo(childName);
            if (childPropertyInfo == null) {
                throw new EntityProviderException(
                        EntityProviderException.INVALID_PROPERTY.addContent(childName));
            }
            Object childData = readPropertyValue(reader, childPropertyInfo, mapping.get(childName));
            if (data.containsKey(childName)) {
                throw new EntityProviderException(
                        EntityProviderException.DOUBLE_PROPERTY.addContent(childName));
            }
            data.put(childName, childData);
        }
    }
    reader.endObject();
    return data;
}

From source file:com.sap.core.odata.core.ep.consumer.JsonServiceDocumentConsumer.java

License:Apache License

private void readEntitySets(final JsonReader reader) throws IOException, EntityProviderException, EdmException {
    while (reader.hasNext()) {
        currentHandledObjectName = reader.nextString();
        if (currentHandledObjectName != null) {
            // Looking for the last dot: "\\.(?=[^.]+$)"
            String[] names = currentHandledObjectName
                    .split("\\" + Edm.DELIMITER + "(?=[^" + Edm.DELIMITER + "]+$)");
            if (names.length == 1) {
                EntitySet entitySet = new EntitySet().setName(names[0]);
                EntityContainerInfo container = new EntityContainerInfo().setDefaultEntityContainer(true);
                EdmEntitySetInfo entitySetInfo = new EdmEntitySetInfoImplProv(entitySet, container);
                entitySets.add(entitySetInfo);
            } else {
                EntitySet entitySet = new EntitySet().setName(names[1]);
                EntityContainerInfo container = new EntityContainerInfo().setName(names[0])
                        .setDefaultEntityContainer(false);
                EdmEntitySetInfo entitySetInfo = new EdmEntitySetInfoImplProv(entitySet, container);
                entitySets.add(entitySetInfo);
            }/* ww w. j a va2s .  c  o  m*/
        }
    }
}

From source file:com.solidfire.jsvcgen.serialization.ApiServerExceptionTypeAdapter.java

License:Open Source License

/**
 * {@inheritDoc}/*from   ww  w.j a  va2  s  .  c om*/
 */
@Override
public ApiServerException read(JsonReader in) throws IOException {

    String name = null;
    String code = null;
    String message = null;

    in.beginObject();
    while (in.hasNext()) {
        if (in.peek() != JsonToken.NAME) {
            in.skipValue();
            continue;
        }

        switch (in.nextName()) {
        case "name":
            name = in.nextString();
            break;
        case "code":
            code = in.nextString();
            break;
        case "message":
            message = in.nextString();
            break;
        }
    }
    in.endObject();

    return new ApiServerException(name, code, message);
}

From source file:com.suny.whereami.service.google.Place.java

License:Open Source License

/**
 * Read fields from a result object./* w ww . j a  v  a  2 s  .  c  o m*/
 * 
 * @param fields
 *            to read or 0 if all fields should be read
 * @param maxResults
 *            maximum number of reviews, events, and photos to return
 */
Place(JsonReader in, int fields, int maxResults) throws IOException {
    in.beginObject();
    while (in.hasNext()) {
        Key key = Key.get(in.nextName());
        if (key == UNKNOWN || fields != 0 && key.mField != null && !key.mField.in(fields)) {
            /* unknown field or caller doesn't want it */
            in.skipValue();
            continue;
        }

        switch (key) {
        case id:
            mId = in.nextString();
            break;
        case reference:
            mReference = in.nextString();
            break;
        case icon:
            mIcon = in.nextString();
            break;
        case url:
            mUrl = in.nextString();
            break;
        case geometry:
            in.beginObject();
            while (in.hasNext()) {
                if (in.nextName().equals("location")) {
                    in.beginObject();
                    while (in.hasNext()) {
                        switch (Key.get(in.nextName())) {
                        case lat:
                            mLat = in.nextDouble();
                            break;
                        case lng:
                            mLong = in.nextDouble();
                            break;
                        default:
                            in.skipValue();
                        }
                    }
                    in.endObject();
                } else {
                    in.skipValue(); // "viewport"
                }
            }
            in.endObject();
            break;
        case name:
            mName = in.nextString();
            break;
        case address_components:
            mAddress = new Address(in);
            break;
        case formatted_address:
            mFmtAddress = in.nextString();
            break;
        case vicinity:
            mVicinity = in.nextString();
            break;
        case international_phone_number:
            mIntlPhone = in.nextString();
            break;
        case formatted_phone_number:
            mFmtPhone = in.nextString();
            break;
        case website:
            mWebsite = in.nextString();
            break;
        case types:
            types(in);
            break;
        case price_level:
            mPrice = in.nextInt();
            break;
        case rating:
            mRating = (float) in.nextDouble();
            break;
        case reviews:
            in.beginArray();
            while (in.hasNext()) {
                if (mReviews == null) {
                    int cap = Math.min(Math.max(0, maxResults), MAX_REVIEWS);
                    mReviews = new ArrayList<Review>(cap > 0 ? cap : MAX_REVIEWS);
                }
                if (maxResults <= 0 || mReviews.size() < maxResults) {
                    mReviews.add(new Review(in));
                } else {
                    in.skipValue();
                }
            }
            in.endArray();
            break;
        case opening_hours:
            in.beginObject();
            while (in.hasNext()) {
                switch (Key.get(in.nextName())) {
                case open_now:
                    mOpen = in.nextBoolean();
                    break;
                case periods:
                    in.beginArray();
                    while (in.hasNext()) {
                        if (mOpenHours == null) {
                            mOpenHours = new ArrayList<OpeningHours>();
                        }
                        mOpenHours.add(new OpeningHours(in));
                    }
                    in.endArray();
                    break;
                default:
                    in.skipValue();
                }
            }
            in.endObject();
            break;
        case events:
            in.beginArray();
            while (in.hasNext()) {
                if (mEvents == null) {
                    int cap = Math.min(Math.max(0, maxResults), MAX_EVENTS);
                    mEvents = new ArrayList<Event>(cap > 0 ? cap : MAX_EVENTS);
                }
                if (maxResults <= 0 || mEvents.size() < maxResults) {
                    mEvents.add(new Event(in));
                } else {
                    in.skipValue();
                }
            }
            in.endArray();
            break;
        case utc_offset:
            mUtcOffset = in.nextInt();
            break;
        case photos:
            in.beginArray();
            while (in.hasNext()) {
                if (mPhotos == null) {
                    int cap = Math.min(Math.max(0, maxResults), MAX_PHOTOS);
                    mPhotos = new ArrayList<Photo>(cap > 0 ? cap : MAX_PHOTOS);
                }
                if (maxResults <= 0 || mPhotos.size() < maxResults) {
                    mPhotos.add(new Photo(in));
                } else {
                    in.skipValue();
                }
            }
            in.endArray();
            break;
        default:
            in.skipValue();
        }
    }
    in.endObject();
}

From source file:com.suny.whereami.service.google.Place.java

License:Open Source License

/**
 * Read field values from a types array.
 *//*from  w  w w . j  av  a 2  s  .c om*/
void types(JsonReader in) throws IOException {
    in.beginArray();
    while (in.hasNext()) {
        if (mTypes == null) {
            mTypes = new ArrayList<String>();
        }
        mTypes.add(in.nextString());
    }
    in.endArray();
}

From source file:com.tapchatapp.android.client.TapchatService.java

License:Apache License

private void oobInclude(String path) throws Exception {
    mLoadingOobBacklog = true;/*from   w w  w  .  j a  v a 2s .  c om*/

    Response response = mAPI.oobInclude(path.substring(1));

    JsonReader reader = new JsonReader(new InputStreamReader(response.getBody().in()));
    reader.beginArray();
    while (reader.hasNext()) {
        Message message = mGson.fromJson(reader, Message.class);
        handleMessage(message);
    }
    reader.endArray();
    reader.close();

    mLoadingOobBacklog = false;
    handleMessageCache();
}

From source file:com.teotigraphix.caustk.tone.ToneUtils.java

License:Apache License

/**
 * Reads and returns the {@link ToneType} from the JSON data.
 * // w  ww . ja v  a2 s .c om
 * @param data Valid serialized Tone data.
 * @throws IOException
 */
public static ToneType readToneType(String data) throws IOException {
    JsonReader reader = new JsonReader(new StringReader(data));
    String type = null;
    try {
        reader.beginObject();
        while (reader.hasNext()) {
            String name = reader.nextName();
            if (name.equals("toneType")) {
                type = reader.nextString();
            } else {
                reader.skipValue();
            }
        }
        reader.endObject();
    } finally {
        reader.close();
    }
    if (type != null)
        return ToneType.valueOf(type);

    return null;
}

From source file:com.trellmor.berrymotes.sync.SubredditEmoteDownloader.java

License:Open Source License

private List<EmoteImage> downloadEmoteList() throws URISyntaxException, IOException, InterruptedException {
    checkInterrupted();// www .  j  a  va2s.  c o  m
    Log.debug("Downloading " + mSubreddit + EMOTES);
    HttpRequestBase request = new HttpGet();
    request.setURI(new URI(EmoteDownloader.HOST + mSubreddit + EMOTES));
    request.setHeader("If-Modified-Since", DateUtils.formatDate(mLastModified));

    mEmoteDownloader.checkCanDownload();
    HttpResponse response = mEmoteDownloader.getHttpClient().execute(request);
    switch (response.getStatusLine().getStatusCode()) {
    case 200:
        Log.debug(mSubreddit + EMOTES + " loaded");
        // Download ok
        Header[] lastModified = response.getHeaders("last-modified");
        if (lastModified.length > 0) {
            try {
                mLastModified = DateUtils.parseDate(lastModified[0].getValue());
            } catch (DateParseException e) {
                Log.error("Error parsing last-modified header", e);
            }
        }

        HttpEntity entity = response.getEntity();
        if (entity != null) {
            checkInterrupted();

            File tmpFile = File.createTempFile(mSubreddit, null, mContext.getCacheDir());
            try {
                InputStream is = entity.getContent();
                try {
                    mEmoteDownloader.checkStorageAvailable();
                    StreamUtils.saveStreamToFile(is, tmpFile);
                } finally {
                    StreamUtils.closeStream(is);
                }

                FileInputStream fis = null;
                BufferedInputStream bis = null;
                GZIPInputStream zis = null;
                Reader isr = null;
                JsonReader jsonReader = null;
                checkInterrupted();

                try {
                    fis = new FileInputStream(tmpFile);
                    bis = new BufferedInputStream(fis);
                    zis = new GZIPInputStream(bis);
                    isr = new InputStreamReader(zis, "UTF-8");
                    jsonReader = new JsonReader(isr);

                    jsonReader.beginArray();
                    Gson gson = new Gson();
                    ArrayList<EmoteImage> emotes = new ArrayList<EmoteImage>();
                    while (jsonReader.hasNext()) {
                        EmoteImage emote = gson.fromJson(jsonReader, EmoteImage.class);
                        emotes.add(emote);
                    }
                    jsonReader.endArray();

                    Log.info("Loaded " + mSubreddit + EMOTES + ", size: " + Integer.toString(emotes.size()));
                    return emotes;
                } finally {
                    StreamUtils.closeStream(jsonReader);
                    StreamUtils.closeStream(isr);
                    StreamUtils.closeStream(zis);
                    StreamUtils.closeStream(bis);
                    StreamUtils.closeStream(fis);
                }
            } finally {
                tmpFile.delete();
            }
        }
        break;
    case 304:
        Log.info(mSubreddit + EMOTES + " already up to date (HTTP 304)");
        break;
    case 403:
    case 404:
        Log.info(mSubreddit + " missing on server, removing emotes");
        mEmoteDownloader.deleteSubreddit(mSubreddit, mContentResolver);
        break;
    default:
        throw new IOException("Unexpected HTTP response: " + response.getStatusLine().getReasonPhrase());
    }
    return null;
}

From source file:com.triarc.sync.SyncAdapter.java

License:Apache License

@SuppressLint("NewApi")
private void readResponse(SyncTypeCollection typeCollection, InputStream inputStream, HttpResponse response)
        throws UnsupportedEncodingException, IOException, JSONException, Exception {
    long lastUpdate = 0;
    Header header = response.getFirstHeader("X-Application-Timestamp");
    if (header != null) {
        String value = header.getValue();
        lastUpdate = Long.parseLong(value);
    }/*from ww w  . j av  a 2  s . c  o  m*/

    // json is UTF-8 by default
    BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream, "UTF-8"), 8);
    JsonStreamParser parser = new JsonStreamParser(reader);
    JsonReader jsonReader = new JsonReader(reader);
    jsonReader.beginObject();
    jsonReader.nextName();
    jsonReader.beginObject();
    while (jsonReader.hasNext()) {

        String syncName = jsonReader.nextName();
        SyncType syncType = this.GetSyncType(typeCollection, syncName);

        JsonElement fromJson = new Gson().fromJson(jsonReader, JsonElement.class);
        updateLocalTypeData(fromJson.getAsJsonObject(), syncType, typeCollection, syncResult);

        notificationQueue.add(new SyncNotificationMessage(syncType, fromJson.toString()));
        // String path = jsonReader.getPath();
        // String nextName = jsonReader.nextName();
        // jsonReader.endObject();
    }
    jsonReader.endObject();

    // String json = getStringForReader(reader);
    //
    //
    // JSONObject syncChangeSets = new JSONObject(json)
    // .getJSONObject("changeSetPerType");
    //
    // // first save all
    // for (SyncType syncType : typeCollection.getTypes()) {
    // syncResult.madeSomeProgress();
    // String name = syncType.getName();
    //
    // if (syncChangeSets.has(name)) {
    // JSONObject changeSetObject = syncChangeSets.getJSONObject(name);
    // updateLocalTypeData(changeSetObject, syncType, typeCollection,
    // syncResult);
    // notificationMap.put(syncType, changeSetObject);
    // } else {
    // Log.w(TAG, "Server does not support syncing of " + name);
    // sendLogs();
    // }
    // }

    // store collection update timestamp
    PreferenceManager.getDefaultSharedPreferences(this.getContext()).edit()
            .putLong(typeCollection.getName(), lastUpdate).commit();
    // then notify all
    notifyWebApp();

}

From source file:com.utad.flume.interceptor.InterceptorTwitter.java

License:Apache License

private byte[] readJsonStream(InputStream is) {
    byte[] body = null;
    try {/*from ww  w .  j a  v a2  s  . c  o  m*/
        JsonReader reader = new JsonReader(new InputStreamReader(is, "UTF-8"));
        try {
            long id = 0L;
            String text = null;
            String userName = null;
            String userScreenName = null;
            reader.beginObject();
            while (reader.hasNext()) {
                String name = reader.nextName();
                if (name.equals("id")) {
                    id = reader.nextLong();
                } else if (name.equals("text")) {
                    text = reader.nextString();
                } else if (name.equals("user")) {
                    reader.beginObject();
                    while (reader.hasNext()) {
                        name = reader.nextName();
                        if (name.equals("name")) {
                            userName = reader.nextString();
                        } else if (name.equals("screen_name")) {
                            userScreenName = reader.nextString();
                        } else {
                            reader.skipValue();
                        }
                    }
                    reader.endObject();
                } else {
                    reader.skipValue();
                }
            }
            reader.endObject();

            StringBuilder builder = new StringBuilder("ID:");
            builder.append(id);
            builder.append("||");
            if (outputText) {
                builder.append("TEXT:").append(text).append("||");
            }
            if (outputUserName) {
                builder.append("USER:").append(userName).append("||");
            }
            if (outputUserScreenName) {
                builder.append("SCREEN:").append(userScreenName).append("||");
            }

            logger.debug("id: {}", id);
            logger.debug("text: {}", text);
            logger.debug("username: {}", userName);
            logger.debug("screenName: {}", userScreenName);

            body = builder.toString().getBytes("UTF-8");
        } finally {
            reader.close();
        }
    } catch (UnsupportedEncodingException e) {
        logger.error("UTF-8 is not supported on this runtime", e);
    } catch (IOException e) {
        logger.error("Caught an IOException", e);
    }
    return body;
}