Example usage for com.google.gson JsonElement isJsonArray

Introduction

In this page you can find the example usage for com.google.gson JsonElement isJsonArray.

Prototype

public boolean isJsonArray() 

Source Link

Document

provides check for verifying if this element is an array or not.

Usage

From source file:com.microsoft.windowsazure.mobileservices.MobileServiceJsonTable.java

License:Open Source License

/**
 * Looks up a row in the table and retrieves its JSON value.
 * /*from   www .  j a va 2  s. co m*/
 * @param id
 *            The id of the row
 * @param callback
 *            Callback to invoke after the operation is completed
 */
public void lookUp(Object id, final TableJsonOperationCallback callback) {
    // Create request URL
    String url = null;
    try {
        url = mClient.getAppUrl().toString() + TABLES_URL
                + URLEncoder.encode(mTableName, MobileServiceClient.UTF8_ENCODING) + "/"
                + URLEncoder.encode(id.toString(), MobileServiceClient.UTF8_ENCODING);
    } catch (UnsupportedEncodingException e) {
        if (callback != null) {
            callback.onCompleted(null, e, null);
        }
        return;
    }

    executeGetRecords(url, new TableJsonQueryCallback() {

        @Override
        public void onCompleted(JsonElement results, int count, Exception exception,
                ServiceFilterResponse response) {
            if (callback != null) {
                if (exception == null) {
                    if (results.isJsonArray()) { // empty result
                        callback.onCompleted(null,
                                new MobileServiceException("A record with the specified Id cannot be found"),
                                response);
                    } else { // Lookup result
                        callback.onCompleted(results.getAsJsonObject(), exception, response);
                    }
                } else {
                    callback.onCompleted(null, exception, response);
                }
            }
        }
    });
}

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From source file:com.microsoft.windowsazure.mobileservices.MobileServiceTable.java

License:Open Source License

/**
 * Parses the JSON object to a typed list
 * /*  ww w .  j  a  va2  s  . c o  m*/
 * @param results
 *            JSON results
 * @return List of entities
 */
private List<E> parseResults(JsonElement results) {
    Gson gson = mClient.getGsonBuilder().create();
    List<E> result = new ArrayList<E>();
    String idPropertyName = getIdPropertyName(mClazz);

    // Parse results
    if (results.isJsonArray()) // Query result
    {
        JsonArray elements = results.getAsJsonArray();

        for (JsonElement element : elements) {
            changeIdPropertyName(element.getAsJsonObject(), idPropertyName);
            E typedElement = gson.fromJson(element, mClazz);
            result.add(typedElement);
        }
    } else { // Lookup result
        changeIdPropertyName(results.getAsJsonObject(), idPropertyName);
        E typedElement = gson.fromJson(results, mClazz);
        result.add(typedElement);
    }
    return result;
}

---

From source file:com.microsoft.windowsazure.mobileservices.table.serialization.JsonEntityParser.java

License:Open Source License

/**
 * Parses the JSON object to a typed list
 *
 * @param results JSON results//w  ww.j a  v a 2  s  .  c om
 * @param gson    Gson object used for parsing
 * @param clazz   Target entity class
 * @return List of entities
 */
public static <E> List<E> parseResults(JsonElement results, Gson gson, Class<E> clazz) {
    List<E> result = new ArrayList<E>();
    String idPropertyName = getIdPropertyName(clazz);

    // Parse results
    if (results.isJsonArray()) {
        // Query result
        JsonArray elements = results.getAsJsonArray();

        for (JsonElement element : elements) {
            changeIdPropertyName(element.getAsJsonObject(), idPropertyName);
            E typedElement = gson.fromJson(element, clazz);
            result.add(typedElement);
        }
    } else {
        // Lookup result
        if (results.isJsonObject()) {
            changeIdPropertyName(results.getAsJsonObject(), idPropertyName);
        }
        E typedElement = gson.fromJson(results, clazz);
        result.add(typedElement);
    }

    return result;
}

---

From source file:com.microsoft.windowsazure.mobileservices.table.sync.MobileServiceSyncContext.java

License:Open Source License

private void processPull(String tableName, Query query, String queryId) throws Throwable {

    try {/* ww w.j a  v  a  2s.co m*/

        MobileServiceJsonTable table = this.mClient.getTable(tableName);

        table.addFeature(MobileServiceFeatures.Offline);

        if (query == null) {
            query = table.top(1000).orderBy("id", QueryOrder.Ascending);
        } else {
            query = query.deepClone();
        }

        PullStrategy strategy;

        if (queryId != null) {
            strategy = new IncrementalPullStrategy(query, queryId, this.mStore, table);
        } else {
            strategy = new PullStrategy(query, table);
        }

        strategy.initialize();

        JsonArray elements = null;

        do {

            JsonElement result = table.execute(strategy.getLastQuery()).get();

            if (result != null) {

                if (result.isJsonObject()) {
                    JsonObject jsonObject = result.getAsJsonObject();

                    if (jsonObject.has("results") && jsonObject.get("results").isJsonArray()) {
                        elements = jsonObject.get("results").getAsJsonArray();
                    }

                } else if (result.isJsonArray()) {
                    elements = result.getAsJsonArray();
                }

                processElements(tableName, elements);

                strategy.onResultsProcessed(elements);
            }

        } while (strategy.moveToNextPage(elements.size()));

    } catch (ExecutionException e) {
        throw e.getCause();
    } catch (RuntimeException e) {
        throw e.getCause();
    }
}

---

From source file:com.microsoft.windowsazure.mobileservices.table.sync.queue.OperationErrorList.java

License:Open Source License

/**
 * Loads the list of table operation errors from the local store
 *
 * @param store the local store/*from  ww w . j  ava2s.  c  o  m*/
 * @return the list of table operation errors
 * @throws java.text.ParseException
 * @throws MobileServiceLocalStoreException
 */
public static OperationErrorList load(MobileServiceLocalStore store)
        throws ParseException, MobileServiceLocalStoreException {
    OperationErrorList opQueue = new OperationErrorList(store);

    JsonElement operations = store.read(QueryOperations.tableName(OPERATION_ERROR_TABLE));

    if (operations.isJsonArray()) {
        JsonArray array = (JsonArray) operations;

        for (JsonElement element : array) {
            if (element.isJsonObject()) {
                TableOperationError operationError = deserialize((JsonObject) element);
                opQueue.mList.add(operationError);
            }
        }
    }

    return opQueue;
}

---

From source file:com.microsoft.windowsazure.mobileservices.table.sync.queue.OperationQueue.java

License:Open Source License

/**
 * Loads the queue of table operations from the local store
 *
 * @param store the local store/*from  www  .j a  v a 2s .c  o m*/
 * @return the queue of table operations
 * @throws java.text.ParseException
 * @throws MobileServiceLocalStoreException
 */
public static OperationQueue load(MobileServiceLocalStore store)
        throws ParseException, MobileServiceLocalStoreException {
    OperationQueue opQueue = new OperationQueue(store);

    JsonElement operations = store.read(QueryOperations.tableName(OPERATION_QUEUE_TABLE)
            .orderBy("__queueLoadedAt", QueryOrder.Ascending).orderBy("sequence", QueryOrder.Ascending));

    if (operations.isJsonArray()) {
        JsonArray array = (JsonArray) operations;

        for (JsonElement element : array) {
            if (element.isJsonObject()) {
                OperationQueueItem opQueueItem = deserialize((JsonObject) element);
                opQueue.mQueue.add(opQueueItem);

                // '/' is a reserved character that cannot be used on string
                // ids.
                // We use it to build a unique compound string from
                // tableName and itemId
                String tableItemId = opQueueItem.getTableName() + "/" + opQueueItem.getItemId();

                opQueue.mIdOperationMap.put(tableItemId, opQueueItem);

                Integer tableCount = opQueue.mTableCountMap.get(opQueueItem.getTableName());

                if (tableCount != null) {
                    opQueue.mTableCountMap.put(opQueueItem.getTableName(), tableCount + 1);
                } else {
                    opQueue.mTableCountMap.put(opQueueItem.getTableName(), 1);
                }
            }
        }
    }

    return opQueue;
}

---

From source file:com.mot.ajaxwebapp.BaseActivity.java

License:Apache License

/**
 * convert an inputstream to JsonElement with JsonParser.
 * Throw exception if json convertion failed, caller will handled the exception and close the stream. 
 *//*w ww . jav a  2 s  . c o m*/
public static JsonElement unmarshall(InputStream jsonContent) throws Exception {
    JsonParser parser = new JsonParser();
    JsonElement element = parser.parse(new InputStreamReader(jsonContent, "UTF-8"));

    if (element.isJsonObject()) {
        return element.getAsJsonObject();
    } else if (element.isJsonArray()) {
        return element.getAsJsonArray();
    } else {
        throw new Exception("Unknown content found in response." + element);
    }
}

---

From source file:com.nextdoor.bender.operation.json.key.FlattenOperation.java

License:Apache License

protected void perform(JsonObject obj) {

    Set<Entry<String, JsonElement>> entries = obj.entrySet();
    Set<Entry<String, JsonElement>> orgEntries = new HashSet<Entry<String, JsonElement>>(entries);

    for (Entry<String, JsonElement> entry : orgEntries) {
        JsonElement val = entry.getValue();

        if (val.isJsonPrimitive() || val.isJsonNull()) {
            continue;
        }//from  ww w . ja  v  a 2  s . c  o  m

        obj.remove(entry.getKey());
        if (val.isJsonObject()) {
            perform(obj, val.getAsJsonObject(), entry.getKey());
        } else if (val.isJsonArray()) {
            perform(obj, val.getAsJsonArray(), entry.getKey());
        }
    }
}

---

From source file:com.nextdoor.bender.operation.json.key.FlattenOperation.java

License:Apache License

protected void perform(JsonObject obj, JsonArray nested_arr, String parent) {
    int c = 0;//ww  w  .  j  av  a2  s  .co m
    for (JsonElement val : nested_arr) {
        c += 1;

        String key = parent + separator + c;

        if (val.isJsonArray()) {
            perform(obj, val.getAsJsonArray(), key);
        } else if (val.isJsonObject()) {
            perform(obj, val.getAsJsonObject(), key);
        } else {
            obj.add(key, val);
        }
    }
}

---

From source file:com.nextdoor.bender.operation.json.key.FlattenOperation.java

License:Apache License

protected void perform(JsonObject obj, JsonObject nested_obj, String parent) {
    Set<Entry<String, JsonElement>> entries = nested_obj.entrySet();
    Set<Entry<String, JsonElement>> orgEntries = new HashSet<Entry<String, JsonElement>>(entries);

    for (Entry<String, JsonElement> entry : orgEntries) {
        JsonElement val = entry.getValue();
        String key = parent + separator + entry.getKey();

        if (val.isJsonObject()) {
            perform(obj, val.getAsJsonObject(), key);
        } else if (val.isJsonArray()) {
            perform(obj, val.getAsJsonArray(), key);
        } else {/*from  www. j  a  v a2  s. c om*/
            obj.add(key, val);
        }
    }
}

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