Example usage for com.google.gwt.http.client Response getStatusCode

List of usage examples for com.google.gwt.http.client Response getStatusCode

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  6. getStatusCode

Introduction

In this page you can find the example usage for com.google.gwt.http.client Response getStatusCode.

Prototype

public abstract int getStatusCode();

Source Link

Document

Returns the HTTP status code that is part of this response.

Usage

From source file:anzsoft.xmpp4gwt.client.Bosh2Connector.java

License:Open Source License

public Bosh2Connector(final User user) {
    this.setUser(user);
    standardHandler = new RequestCallback() {

        public void onError(Request request, Throwable exception) {
            final String lastSendedBody = activeRequests.remove(request);
            if (exception instanceof RequestTimeoutException) {
                GWT.log("Request too old. Trying again.", null);
                DeferredCommand.addCommand(new Command() {
                    public void execute() {
                        if (lastSendedBody != null && state == State.connected && sid != null
                                && sid.length() > 0)
                            send(lastSendedBody, standardHandler);
                        else
                            continuousConnection(null);
                    }/*from  w ww .  ja  v  a  2s  . c o  m*/
                });
            } else if (exception.getMessage().startsWith("Unable to read XmlHttpRequest.status;")) {
                GWT.log("Lost request. Ignored. Resend.", null);
                if (lastSendedBody != null) {
                    DeferredCommand.addCommand(new Command() {
                        public void execute() {
                            if (state == State.connected && sid != null && sid.length() > 0) {
                                send(lastSendedBody, standardHandler);
                            }
                        }
                    });
                }
            } else {
                state = State.disconnected;
                GWT.log("Connection error", exception);
                exception.printStackTrace();
                fireEventError(BoshErrorCondition.remote_connection_failed, null,
                        "Response error: " + exception.getMessage());
            }
        }

        public void onResponseReceived(Request request, Response response) {
            if (state == State.disconnected)
                return;

            final String httpResponse = response.getText();
            final int httpStatusCode = response.getStatusCode();
            final String lastSendedBody = activeRequests.remove(request);

            System.out.println(" IN (" + httpStatusCode + "): " + httpResponse);
            fireOnBodyReceive(response, httpResponse);

            final Packet body = parse2(response.getText().replaceAll(";", ";"));

            final String type = body == null ? null : body.getAtribute("type");
            final String receivedSid = body == null ? null : body.getAtribute("sid");
            String $tmp = body == null ? null : body.getAtribute("rid");
            //final Long rid = $tmp == null ? null : Long.valueOf($tmp);
            final String ack = body == null ? null : body.getAtribute("ack");
            $tmp = body == null ? null : body.getAtribute("condition");
            if ($tmp != null)
                $tmp = $tmp.replace("-", "_");
            final BoshErrorCondition boshCondition = $tmp == null ? null : BoshErrorCondition.valueOf($tmp);

            final String wait = body == null ? null : body.getAtribute("wait");
            final String inactivity = body == null ? null : body.getAtribute("inactivity");
            if (wait != null && inactivity != null) {
                try {
                    int w = Integer.parseInt(wait);
                    int i = Integer.parseInt(inactivity);
                    int t = (w + i / 2) * 1000;
                    builder.setTimeoutMillis(t);
                    GWT.log("New timeout: " + t + "ms", null);
                } catch (Exception e) {
                    GWT.log("Error in wait and inactivity attributes", e);
                }
            }

            if (httpStatusCode != 200 || body == null
                    || type != null && ("terminate".equals(type) || "error".equals(type))) {
                GWT.log("ERROR (" + httpStatusCode + "): " + httpResponse, null);
                ErrorCondition condition = body == null ? ErrorCondition.bad_request
                        : ErrorCondition.undefined_condition;
                String msg = null;
                Packet error = body == null ? null : body.getFirstChild("error");
                if (error != null) {
                    for (Packet c : error.getChildren()) {
                        String xmlns = c.getAtribute("xmlns");
                        if ("text".equals(c.getName())) {
                            msg = c.getCData();
                            break;
                        } else if (xmlns != null && "urn:ietf:params:xml:ns:xmpp-stanzas".equals(xmlns)) {
                            condition = getCondition(c.getName(), httpStatusCode);
                        }
                    }
                }

                if (condition == ErrorCondition.item_not_found) {
                    state = State.disconnected;
                    fireEventError(boshCondition, condition, msg);
                } else if (errorCounter < MAX_ERRORS) {
                    errorCounter++;
                    send(lastSendedBody, standardHandler);
                } else if (type != null && "terminate".equals(type)) {
                    GWT.log("Disconnected by server", null);
                    state = State.disconnected;
                    fireDisconnectByServer(boshCondition, condition, msg);
                } else {
                    state = State.disconnected;
                    if (msg == null) {
                        msg = "[" + httpStatusCode + "] " + condition.name().replace('_', '-');
                    }
                    fireEventError(boshCondition, condition, msg);
                }
            } else {
                errorCounter = 0;
                if (receivedSid != null && sid != null && !receivedSid.equals(sid)) {
                    state = State.disconnected;
                    fireEventError(BoshErrorCondition.policy_violation, ErrorCondition.unexpected_request,
                            "Unexpected session initialisation.");
                } else if (receivedSid != null && sid == null) {
                    sid = receivedSid;
                    Cookies.setCookie(user.getResource() + "sid", sid, null, null, "/", false);
                    state = State.connected;
                }

                final List<? extends Packet> children = body.getChildren();
                if (children.size() > 0) {
                    fireEventReceiveStanzas(children);
                }
                continuousConnection(ack);
            }
            System.out.println("............sid value is:" + sid);
        }
    };

    //added by zhongfanglin@antapp.com
    scriptHandler = new ScriptSyntaxRequestCallback() {
        public void onError(String callbackID) {
            state = State.disconnected;
            GWT.log("Connection error", null);
            fireEventError(BoshErrorCondition.remote_connection_failed, null,
                    "Response error: request timeout or 404!");
        }

        public void onResponseReceived(String callbackID, String responseText) {

            if (state == State.disconnected)
                return;

            final String httpResponse = responseText;
            final String lastSendedBody = activeScriptRequests.remove(callbackID);

            System.out.println(" IN:" + httpResponse);
            fireOnBodyReceive(null, httpResponse);

            final Packet body = parse2(responseText.replaceAll("&semi;", ";"));

            final String type = body == null ? null : body.getAtribute("type");
            final String receivedSid = body == null ? null : body.getAtribute("sid");
            String $tmp = body == null ? null : body.getAtribute("rid");
            //final Long rid = $tmp == null ? null : Long.valueOf($tmp);
            final String ack = body == null ? null : body.getAtribute("ack");
            $tmp = body == null ? null : body.getAtribute("condition");
            if ($tmp != null)
                $tmp = $tmp.replace("-", "_");
            final BoshErrorCondition boshCondition = $tmp == null ? null : BoshErrorCondition.valueOf($tmp);

            final String wait = body == null ? null : body.getAtribute("wait");
            final String inactivity = body == null ? null : body.getAtribute("inactivity");
            if (wait != null && inactivity != null) {
                try {
                    int w = Integer.parseInt(wait);
                    int i = Integer.parseInt(inactivity);
                    int t = (w + i / 2) * 1000;
                    scriptBuilder.setTimeoutMillis(t);
                    GWT.log("New timeout: " + t + "ms", null);
                } catch (Exception e) {
                    GWT.log("Error in wait and inactivity attributes", e);
                }
            }

            if (body == null || type != null && ("terminate".equals(type) || "error".equals(type))) {
                GWT.log("ERROR : " + httpResponse, null);
                ErrorCondition condition = body == null ? ErrorCondition.bad_request
                        : ErrorCondition.undefined_condition;
                String msg = null;
                Packet error = body == null ? null : body.getFirstChild("error");
                if (error != null) {
                    for (Packet c : error.getChildren()) {
                        String xmlns = c.getAtribute("xmlns");
                        if ("text".equals(c.getName())) {
                            msg = c.getCData();
                            break;
                        } else if (xmlns != null && "urn:ietf:params:xml:ns:xmpp-stanzas".equals(xmlns)) {
                            condition = getCondition(c.getName(), -1);
                        }
                    }
                }

                if (condition == ErrorCondition.item_not_found) {
                    state = State.disconnected;
                    fireEventError(boshCondition, condition, msg);
                } else if (errorCounter < MAX_ERRORS) {
                    errorCounter++;
                    send(lastSendedBody, scriptHandler);
                } else if (type != null && "terminate".equals(type)) {
                    GWT.log("Disconnected by server", null);
                    state = State.disconnected;
                    fireDisconnectByServer(boshCondition, condition, msg);
                } else {
                    state = State.disconnected;
                    if (msg == null) {
                        msg = condition.name().replace('_', '-');
                    }
                    fireEventError(boshCondition, condition, msg);
                }
            } else {
                errorCounter = 0;
                if (receivedSid != null && sid != null && !receivedSid.equals(sid)) {
                    state = State.disconnected;
                    fireEventError(BoshErrorCondition.policy_violation, ErrorCondition.unexpected_request,
                            "Unexpected session initialisation.");
                } else if (receivedSid != null && sid == null) {
                    sid = receivedSid;
                    Cookies.setCookie(user.getResource() + "sid", sid, null, null, "/", false);
                    state = State.connected;
                }

                List<? extends Packet> children = body.getChildren();
                if (children.size() > 0) {
                    fireEventReceiveStanzas(children);
                }
                continuousConnection(ack);
            }
        }

    };
    //end added 
}

From source file:br.com.pegasus.solutions.smartgwt.lib.client.view.impl.advanced.bar.infra.ExporterData.java

License:Apache License

private static void processRequest(String params) {
    try {//from   w  w  w.j  a  v a  2 s .  c  om
        RequestBuilder requestBuilder = new RequestBuilder(RequestBuilder.POST,
                GWT.getModuleBaseURL() + "ExportServlet");
        requestBuilder.setHeader("Content-type", "application/x-www-form-urlencoded");

        requestBuilder.sendRequest(params, new RequestCallback() {
            public void onResponseReceived(Request request, Response response) {
                if (200 == response.getStatusCode()) {
                    ExporterData.callExportServlet
                            .fireEvent(new ClickEvent(ExporterData.callExportServlet.getJsObj()));
                } else {
                    MessageUtil
                            .showError("An Error occurred response status code: " + response.getStatusCode());
                }
            }

            public void onError(Request request, Throwable exception) {
                MessageUtil.showError(exception.getMessage());
            }
        });
    } catch (RequestException e) {
        MessageUtil.showError(e.getMessage());
    }
}

From source file:br.com.pegasus.solutions.smartgwt.lib.client.view.impl.util.HttpRequestUtil.java

License:Apache License

/**
 * do request// w  w  w  .ja va 2  s  .c  o m
 * 
 * @param servletName {@link String}
 * @param params {@link String}
 * @param iRequestBuilderSucessAction {@link IRequestBuilderFailedAction}
 * @param iFailedAction {@link IRequestBuilderFailedAction}
 * @throws RequestException
 * @return void
 */
private static void doRequest(final IRequestBuilderSucessAction iRequestBuilderSucessAction,
        final IRequestBuilderFailedAction iFailedAction, String url, String params,
        RequestBuilder.Method method) throws RequestException {

    RequestBuilder requestBuilder = new RequestBuilder(method, url);
    requestBuilder.setHeader("Content-type", "application/x-www-form-urlencoded");
    requestBuilder.sendRequest(params, new RequestCallback() {
        public void onResponseReceived(Request request, Response response) {
            if (200 == response.getStatusCode() && iRequestBuilderSucessAction != null) {
                iRequestBuilderSucessAction.executeAction(request, response);
            }
        }

        public void onError(Request request, Throwable exception) {
            if (iFailedAction != null) {
                iFailedAction.executeAction(request, exception);
            } else {
                MessageUtil.showError(exception.getMessage());
            }
        }
    });
}

From source file:cc.kune.embed.client.EmbedHelper.java

License:GNU Affero Public License

/**
 * Process request.//from ww w .  j a  va  2s  .c  o  m
 *
 * @param url
 *          the url
 * @param callback
 *          the callback
 */
public static void processRequest(final String url, final Callback<Response, Void> callback) {
    try {
        final RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, url);
        // Needed for CORS
        builder.setIncludeCredentials(true);
        @SuppressWarnings("unused")
        final Request request = builder.sendRequest(null, new RequestCallback() {
            @Override
            public void onError(final Request request, final Throwable exception) {
                Log.error("CORS exception: ", exception);
                callback.onFailure(null);
            }

            @Override
            public void onResponseReceived(final Request request, final Response response) {
                if (200 == response.getStatusCode()) {
                    callback.onSuccess(response);
                } else {
                    Log.error("Couldn't retrieve CORS (" + response.getStatusText() + ")");
                    callback.onFailure(null);
                }
            }
        });
    } catch (final RequestException exception) {
        Log.error("CORS exception: ", exception);
        callback.onFailure(null);
    }
}

From source file:ch.sebastienzurfluh.swissmuseum.core.client.model.io.CakeConnector.java

License:Open Source License

private <T> void asyncRequest(final Requests request, final int referenceId, String args,
        final AsyncCallback<T> callback) {

    final StringBuilder url = new StringBuilder(cakePath + request.getURL());

    url.append(CAKE_ARGS_SEPARATOR).append(args);
    url.append(CAKE_ARGS_SEPARATOR).append(referenceId);

    url.append(CAKE_SUFFIX);/*from  ww  w  . j  a v a  2s.co  m*/

    System.out.println("Making async request on " + url);

    RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, url.toString());

    try {
        builder.sendRequest(null, new RequestCallback() {
            public void onError(Request httpRequest, Throwable exception) {
                System.out.println("JSON request failure. " + exception.getLocalizedMessage());
                // we do nothing else than log
                callback.onFailure(exception);
            }

            @SuppressWarnings("unchecked")
            public void onResponseReceived(Request httpRequest, Response response) {
                if (200 == response.getStatusCode()) {
                    System.out.println("Got answer from async request.");

                    JsArray<Entry> entries = evalJson(response.getText().trim());

                    // BLACKBOX!!!
                    DataType dataType = DataType.PAGE;

                    switch (request) {
                    case GETALLGROUPMENUS:
                        dataType = DataType.GROUP;
                    case GETALLPAGEMENUSFROMGROUP:
                        // menu collection
                        LinkedList<MenuData> dataList = new LinkedList<MenuData>();
                        for (int i = 0; i < entries.length(); i++) {
                            Entry entry = entries.get(i);
                            dataList.add(parseMenuData(entry, referenceId, dataType));
                        }
                        // give callback
                        callback.onSuccess((T) dataList);
                        break;
                    case GETDATA:
                    case GETFIRSTDATAOFGROUP:
                        // single data
                        Data parsedData = parseData(entries.get(0), referenceId, DataType.PAGE);
                        callback.onSuccess((T) parsedData);
                        break;
                    case GETRESOURCE:
                        ResourceData parsedData2 = parseResourceData(entries.get(0), referenceId);
                        callback.onSuccess((T) parsedData2);
                    }
                }
            }
        });
    } catch (Exception e) {
        callback.onFailure(e);
    }
}

From source file:ch.sebastienzurfluh.swissmuseum.parcours.client.model.SimpleCakeBridge.java

License:Open Source License

public <ResponseType extends JavaScriptObject> void sendRequest(String requestString,
        final WithResult<ResponseType> withResult) {
    RequestBuilder builder = new RequestBuilder(RequestBuilder.GET,
            cakePath + CAKE_ARGS_SEPARATOR + requestString + CAKE_SUFFIX);

    try {//from   w  w w  . j ava  2 s  .c om
        builder.sendRequest(null, new RequestCallback() {
            public void onError(Request httpRequest, Throwable exception) {
                System.out.println("JSON request failure. " + exception.getLocalizedMessage());
                // we do nothing else than log
            }

            @SuppressWarnings("unchecked")
            public void onResponseReceived(Request httpRequest, Response response) {
                if (200 == response.getStatusCode()) {
                    System.out.println("Got answer from async request.");

                    withResult.execute((ResponseType) evalJson(response.getText().trim()));
                }
            }
        });
    } catch (Exception e) {
        System.out.println("JSON request error. " + e.getLocalizedMessage());
        // we do nothing else than log
    }
}

From source file:ch.unifr.pai.twice.mousecontrol.client.TouchPadWidget.java

License:Apache License

/**
 * starts the execution of the component
 *//*  w  ww .  j a v  a  2 s.  c  o  m*/
public void start() {
    if (!running) {
        label.setText("looking for available remote-clients");
        getAvailableClients(new Command() {

            @Override
            public void execute() {
                label.setText((availableClients == null ? "0" : availableClients.length) + " clients found");
                if (getCurrentClient() != null) {
                    label.setText("looking for cursor on client " + getCurrentClient());
                    lookForCursor = new Timer() {

                        @Override
                        public void run() {
                            try {
                                new RequestBuilder(RequestBuilder.GET, GWT.getHostPageBaseURL() + controlServlet
                                        + "?a=x"
                                        + (getCurrentClient() != null ? "&targetUUID=" + getCurrentClient()
                                                : "")
                                        + (uuid != null ? "&uuid=" + uuid : "")
                                        + (host != null ? "&host=" + host : "")
                                        + (port != null ? "&port=" + port : "")).sendRequest(null,
                                                new RequestCallback() {

                                                    @Override
                                                    public void onResponseReceived(Request request,
                                                            Response response) {
                                                        if (response.getStatusCode() > 400)
                                                            onError(request, null);
                                                        label.setText("GOT DATA: " + response.getText());
                                                        String color = extractColor(response);
                                                        if (color == null || color.isEmpty()
                                                                || color.equals("#null"))
                                                            color = null;
                                                        extractLastAction(response);

                                                        setScreenDimension(extractScreenDimensions(response));
                                                        if (color != null) {
                                                            setColor(color);
                                                            cursorAssigned();
                                                        } else {
                                                            noCursorAvailable();
                                                        }
                                                    }

                                                    @Override
                                                    public void onError(Request request, Throwable exception) {
                                                        noCursorAvailable();
                                                    }
                                                });
                            } catch (RequestException e) {
                                noCursorAvailable();
                            }
                        }
                    };
                    lookForCursor.run();
                }
            }
        });
    }
}

From source file:ch.unifr.pai.twice.mousecontrol.client.TouchPadWidget.java

License:Apache License

/**
 * Sends the given query to the mouse pointer controller servlet
 * /*  ww w.java2  s  .c  om*/
 * @param query
 * @param callback
 */
protected void send(String query, final Command callback) {
    try {
        if (active) {

            new RequestBuilder(RequestBuilder.GET,
                    GWT.getHostPageBaseURL() + controlServlet + "?" + (query != null ? query : "a=x")
                            + (getCurrentClient() != null ? "&targetUUID=" + getCurrentClient() : "")
                            + (uuid != null ? "&uuid=" + uuid : "") + (host != null ? "&host=" + host : "")
                            + (port != null ? "&port=" + port : "") + ("&user=" + Authentication.getUserName()))
                                    .sendRequest(null, new RequestCallback() {

                                        @Override
                                        public void onResponseReceived(Request request, Response response) {
                                            if (response.getStatusCode() > 400)
                                                onError(request, null);
                                            String color = extractColor(response);
                                            if (response.getText().trim().isEmpty()) {
                                                label.setText("No connection available");
                                                noConnection = true;
                                            } else {
                                                if (noConnection) {
                                                    label.setText("");
                                                    noConnection = false;
                                                }

                                                if (color == null || color.isEmpty() || color.equals("#null"))
                                                    color = null;
                                                extractLastAction(response);
                                                setColor(color);
                                                setScreenDimension(extractScreenDimensions(response));
                                                if (callback != null)
                                                    callback.execute();
                                            }
                                        }

                                        @Override
                                        public void onError(Request request, Throwable exception) {
                                            setActive(false);
                                        }
                                    });
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

From source file:client.net.sf.saxon.ce.Xslt20ProcessorImpl.java

License:Mozilla Public License

public Node renderXML(JavaScriptObject inSourceDoc, DocumentInfo styleDoc,
        com.google.gwt.dom.client.Node target) {
    try {/* w  w w.j  a  va2 s.c  o  m*/
        if (styleDoc == null) {
            throw new Exception("Stylesheet for transform is null");
        }
        docFetchRequired = inSourceDoc != null;
        CompilerInfo info = config.getDefaultXsltCompilerInfo();
        info.setErrorListener(new StandardErrorListener());

        String asyncSourceURI = null;

        // for now - don't use aync when using the JavaScript API calls that return a result
        if (docFetchRequired
                && (localController.getApiCommand() == APIcommand.UPDATE_HTML || (successCallback != null))) {
            asyncSourceURI = SaxonceApi.getAsyncUri(inSourceDoc);
            if (asyncSourceURI != null && asyncSourceURI.toLowerCase().startsWith("file:")) {
                asyncSourceURI = null; // force synchronous fetch if using file-system protocol
            }
        }

        // ----------- Start async code -------------
        fetchedSourceDoc = null;
        transformInvoked = false;

        if (asyncSourceURI != null) {
            final String URI = asyncSourceURI;
            final Node transformTarget = target;

            logger.log(Level.FINE, "Aynchronous GET for: " + asyncSourceURI);
            final HTTPHandler hr = new HTTPHandler();

            hr.doGet(asyncSourceURI, new RequestCallback() {

                public void onError(Request request, Throwable exception) {
                    //hr.setErrorMessage(exception.getMessage());
                    String msg = "HTTP Error " + exception.getMessage() + " for URI " + URI;
                    handleException(new RuntimeException(msg), "onError");
                }

                public void onResponseReceived(Request request, Response response) {
                    int statusCode = response.getStatusCode();
                    if (statusCode == 200) {
                        Logger.getLogger("ResponseReceived").fine("GET Ok for: " + URI);
                        Node responseNode;
                        try {
                            responseNode = (Node) XMLDOM.parseXML(response.getText());
                        } catch (Exception e) {
                            handleException(new RuntimeException(e.getMessage()), "onResponseReceived");
                            return;
                        }
                        DocumentInfo responseDoc = config.wrapXMLDocument(responseNode, URI);
                        // now document is here, we can transform it
                        Node result = invokeTransform(responseDoc, transformTarget);
                        hr.setResultNode(result); // TODO: This isn't used yet
                        // handle OK response from the server 
                    } else if (statusCode < 400) {
                        // transient
                    } else {
                        String msg = "HTTP Error " + statusCode + " " + response.getStatusText() + " for URI "
                                + URI;
                        handleException(new RuntimeException(msg), "onResponseReceived");
                        //hr.setErrorMessage(statusCode + " " + response.getStatusText());
                    }
                } // ends inner method
            }// ends inner class
            ); // ends doGet method call
        }
        // -------------- End async code

        /// we can compile - even while sourcedoc is being fetched asynchronously

        if (stylesheet == null) {
            if (LogConfiguration.loggingIsEnabled()) {
                LogController.InitializeTraceListener();
            }
            logger.log(Level.FINE, "Compiling Stylesheet...");
            PreparedStylesheet sheet = new PreparedStylesheet(config, info);
            sheet.prepare(styleDoc);
            stylesheet = sheet;
            logger.log(Level.FINE, "Stylesheet compiled OK");
        }

        // for async operation - this is called within the callback - so don't call here            
        if (asyncSourceURI == null && inSourceDoc != null) {
            int nodeType = (Node.is(inSourceDoc)) ? ((Node) inSourceDoc).getNodeType() : 0;

            if (nodeType > 0 && nodeType != Node.DOCUMENT_NODE) {
                // add a document node wrapper
                Node sourceNode = (Node) inSourceDoc;
                Document sourceDoc = sourceNode.getOwnerDocument();
                HTMLDocumentWrapper htmlDoc = new HTMLDocumentWrapper(sourceDoc, sourceDoc.getURL(), config,
                        DocType.UNKNOWN);
                fetchedSourceDoc = htmlDoc.wrap(sourceNode);
            } else {
                fetchedSourceDoc = SaxonceApi.getDocSynchronously(inSourceDoc, config);
            }
        }
        // this method only runs if transformInvoked == false - need to get sourceDoc reference if not invoked

        return invokeTransform(fetchedSourceDoc, target);

        //method ends - allowing onResponceReceived handler to call invokeTransform for async operation
    } catch (Exception e) {
        handleException(e, "renderXML");
        return null;
    }
}

From source file:colt.json.gwt.client.JsonClient.java

License:Apache License

public void invoke(final String _url, final String _serviceName, String requestData, final IAsyncJSON result) {
    try {/* w  ww. ja  v  a  2s  .c o m*/
        RequestBuilder requestBuilder = new RequestBuilder(RequestBuilder.POST,
                URL.encode(_url + _serviceName));
        requestBuilder.setHeader("content-type", "application/x-www-form-urlencoded");

        Request request = requestBuilder.sendRequest(requestData, new RequestCallback() {
            public void onError(Request request, Throwable exception) {
                result.error(exception);
            }

            public void onResponseReceived(Request request, Response response) {
                if (200 == response.getStatusCode()) {
                    String text = response.getText();
                    JSONValue parser = JSONParser.parse(text);
                    JSONObject jobj = parser.isObject();
                    result.done(jobj);
                } else {
                    result.error(new RuntimeException(_url + _serviceName + " :("));
                }
            }
        });
    } catch (RequestException e) {
        Window.alert(e.getMessage());
        result.error(e);
    }
}