Examples with BackendlessException com.backendless.exceptions.BackendlessException used on opensource projects

Example 6 with BackendlessException

use of com.backendless.exceptions.BackendlessException in project Android-SDK by Backendless.

the class Files method uploadFromStream.

public BackendlessFile uploadFromStream(OutputStreamRouter outputStreamRouter, String name, String path, boolean overwrite) throws Exception {
    HttpURLConnection connection = null;
    String CRLF = "\r\n";
    String boundary = (new GUID()).toString();
    try {
        String urlStr = Backendless.getUrl() + '/' + Backendless.getApplicationId() + '/' + Backendless.getSecretKey() + "/files/" + encodeURL(path) + "/" + encodeURL(name);
        if (overwrite)
            urlStr = urlStr + "?" + OVERWRITE_PARAMETER_NAME + "=" + overwrite;
        java.net.URL url = new URL(urlStr);
        connection = (HttpURLConnection) url.openConnection();
        connection.setChunkedStreamingMode(DEFAULT_CHUNK_SIZE);
        connection.setDoOutput(true);
        connection.setDoInput(true);
        connection.addRequestProperty("Content-Type", "multipart/form-data; boundary=" + boundary);
        for (String key : HeadersManager.getInstance().getHeaders().keySet()) connection.addRequestProperty(key, HeadersManager.getInstance().getHeaders().get(key));
        try (OutputStream outputStream = connection.getOutputStream();
            PrintWriter writer = new PrintWriter(new OutputStreamWriter(outputStream, "UTF-8"), true)) {
            writer.append("--").append(boundary).append(CRLF);
            writer.append("Content-Disposition: form-data; name=\"file\"; filename=\"").append(name).append("\"").append(CRLF);
            writer.append("Content-Type: application/octet-stream").append(CRLF);
            writer.append("Content-Transfer-Encoding: binary").append(CRLF);
            writer.append(CRLF).flush();
            outputStreamRouter.writeStream(outputStream);
            outputStream.flush();
            writer.append(CRLF).flush();
            writer.append("--").append(boundary).append("--").append(CRLF);
        }
        if (connection.getResponseCode() != 200) {
            Scanner scanner = new Scanner(connection.getErrorStream());
            scanner.useDelimiter("\\Z");
            String response = scanner.next();
            scanner.close();
            Matcher matcher = SERVER_ERROR_PATTERN.matcher(response);
            String message = null;
            String code = null;
            while (matcher.find()) {
                message = matcher.group(MESSAGE_POSITION);
                code = matcher.group(CODE_POSITION);
            }
            throw new BackendlessException(code == null ? String.valueOf(connection.getResponseCode()) : code, message);
        } else {
            Scanner scanner = new Scanner(connection.getInputStream());
            scanner.useDelimiter("\\Z");
            String response = scanner.next();
            scanner.close();
            Matcher matcher = SERVER_RESULT_PATTERN.matcher(response);
            String fileUrl = null;
            while (matcher.find()) fileUrl = matcher.group(MESSAGE_POSITION);
            return new BackendlessFile(fileUrl);
        }
    } catch (MalformedURLException e) {
        throw new IllegalArgumentException(ExceptionMessage.FILE_UPLOAD_ERROR, e);
    } catch (UnsupportedEncodingException e) {
        throw new IllegalArgumentException(ExceptionMessage.FILE_UPLOAD_ERROR, e);
    } catch (IOException e) {
        throw new BackendlessException(ExceptionMessage.FILE_UPLOAD_ERROR, e.getMessage());
    } finally {
        if (connection != null)
            connection.disconnect();
    }
}

Example 7 with BackendlessException

use of com.backendless.exceptions.BackendlessException in project Android-SDK by Backendless.

the class Invoker method invokeSync.

public static <T> T invokeSync(String className, String methodName, Object[] args, IChainedResponder chainedResponder) throws BackendlessException {
    SyncResponder invokeResponder = new SyncResponder();
    if (chainedResponder == null)
        chainedResponder = new AdaptingResponder<T>();
    chainedResponder.setNextResponder(invokeResponder);
    try {
        ThreadContext.cleanup();
        getWebOrbClient().invoke(className, methodName, args, null, null, HeadersManager.getInstance().getHeaders(), chainedResponder);
    } catch (Exception e) {
        throw new BackendlessException(ExceptionMessage.SERVER_ERROR, e.getMessage());
    }
    return (T) invokeResponder.getResult();
}

Example 8 with BackendlessException

use of com.backendless.exceptions.BackendlessException in project Android-SDK by Backendless.

the class Persistence method getEntityId.

public static String getEntityId(Object entity) throws BackendlessException {
    String id = null;
    if (entity instanceof Map)
        return (String) ((Map) entity).get(Persistence.DEFAULT_OBJECT_ID_FIELD);
    if (ReflectionUtil.hasField(entity.getClass(), Persistence.DEFAULT_OBJECT_ID_FIELD)) {
        try {
            Field field = ReflectionUtil.getField(entity.getClass(), Persistence.DEFAULT_OBJECT_ID_FIELD);
            field.setAccessible(true);
            id = (String) field.get(entity);
        } catch (NoSuchFieldException | IllegalAccessException e) {
        }
    } else {
        try {
            Method declaredMethod = entity.getClass().getMethod(DEFAULT_OBJECT_ID_GETTER);
            if (!declaredMethod.isAccessible())
                declaredMethod.setAccessible(true);
            id = (String) declaredMethod.invoke(entity);
        } catch (Exception e) {
            id = null;
        }
    }
    if (id == null)
        id = FootprintsManager.getInstance().getObjectId(entity);
    return id;
}