Example usage for com.google.gwt.http.client RequestException RequestException

List of usage examples for com.google.gwt.http.client RequestException RequestException

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Introduction

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

Prototype

public RequestException(Throwable cause)

Source Link

Usage

From source file:com.calclab.emite.base.util.Platform.java

License:Open Source License

/**
 * Send a BOSH HTTP request to a server.
 * //from www.ja va  2s . co  m
 * @param httpBase the base URL to send the request
 * @param request the request contents
 * @param callback a callback to process the response
 */
public static final void sendXML(final String httpBase, final XMLPacket request,
        final AsyncResult<XMLPacket> callback) {
    final RequestBuilder builder = new RequestBuilder(RequestBuilder.POST, httpBase);
    builder.setHeader(HttpHeaders.CONTENT_TYPE, "text/xml; charset=utf-8");
    //builder.setHeader(HttpHeaders.CACHE_CONTROL, "no-cache");
    //builder.setHeader(HttpHeaders.PRAGMA, "no-cache");
    // TODO : Hard coded timeout to 6s, but we should set it to the wait + a delta
    // builder.setTimeoutMillis(6000);
    try {
        final Request req = builder.sendRequest(request.toString(), new RequestCallback() {
            @Override
            public void onResponseReceived(@Nullable final Request req, @Nullable final Response res) {
                requests.remove(req);
                if (res.getStatusCode() != Response.SC_OK) {
                    callback.onError(new RequestException(
                            "Invalid status " + res.getStatusCode() + ": " + res.getStatusText()));
                    return;
                }

                final XMLPacket response = XMLBuilder.fromXML(res.getText());
                if (response == null || !"body".equals(response.getTagName())) {
                    callback.onError(new RequestException("Bad response: " + res.getText()));
                    return;
                }

                callback.onSuccess(response);
            }

            @Override
            public void onError(@Nullable final Request req, @Nullable final Throwable throwable) {
                logger.severe("GWT CONNECTOR ERROR: " + throwable.getMessage());
                requests.remove(req);
                callback.onError(throwable);
            }
        });
        requests.add(req);
    } catch (final RequestException e) {
        callback.onError(e);
    } catch (final Exception e) {
        logger.severe("Some GWT connector exception: " + e.getMessage());
        callback.onError(e);
    }
}

From source file:com.cgxlib.xq.client.plugins.deferred.PromiseReqBuilder.java

License:Apache License

/**
 * Using this constructor we access to some things in the xmlHttpRequest
 * which are not available in GWT, like adding progress handles or sending
 * javascript data (like forms in modern html5 file api).
 *//* www.  ja v  a  2 s.co m*/
public PromiseReqBuilder(Settings settings) {
    String httpMethod = settings.getType();
    String url = settings.getUrl();
    IsProperties data = settings.getData();
    String ctype = settings.getContentType();
    Boolean isFormData = data != null && data.getDataImpl() instanceof JavaScriptObject
            && JsUtils.isFormData(data.<JavaScriptObject>getDataImpl());

    XMLHttpRequest xmlHttpRequest = XMLHttpRequest.create();
    try {
        if (settings.getUsername() != null && settings.getPassword() != null) {
            xmlHttpRequest.open(httpMethod, url, settings.getUsername(), settings.getPassword());
        } else if (settings.getUsername() != null) {
            xmlHttpRequest.open(httpMethod, url, settings.getUsername());
        } else {
            xmlHttpRequest.open(httpMethod, url);
        }
    } catch (JavaScriptException e) {
        RequestPermissionException requestPermissionException = new RequestPermissionException(url);
        requestPermissionException.initCause(new RequestException(e.getMessage()));
        onError(null, e);
        return;
    }

    JsUtils.prop(xmlHttpRequest, "onprogress", JsUtils.wrapFunction(new Function() {
        public void f() {
            JsCache p = arguments(0);
            double total = p.getDouble("total");
            double loaded = p.getDouble("loaded");
            double percent = loaded == 0 ? 0 : total == 0 ? 100 : (100 * loaded / total);
            dfd.notify(total, loaded, percent, "download");
        }
    }));

    JavaScriptObject upload = JsUtils.prop(xmlHttpRequest, "upload");
    JsUtils.prop(upload, "onprogress", JsUtils.wrapFunction(new Function() {
        public void f() {
            JsCache p = arguments(0);
            double total = p.getDouble("total");
            double loaded = p.getDouble("loaded");
            double percent = 100 * loaded / total;
            dfd.notify(total, loaded, percent, "upload");
        }
    }));

    IsProperties headers = settings.getHeaders();
    if (headers != null) {
        for (String headerKey : headers.getFieldNames()) {
            xmlHttpRequest.setRequestHeader(headerKey, String.valueOf(headers.get(headerKey)));
        }
    }

    if (data != null && !isFormData && !"GET".equalsIgnoreCase(httpMethod)) {
        xmlHttpRequest.setRequestHeader("Content-Type", ctype);
    }

    // Using xq to set credentials since this method was added in 2.5.1
    // xmlHttpRequest.setWithCredentials(true);
    JsUtils.prop(xmlHttpRequest, "withCredentials", settings.getWithCredentials());

    final Request request = createRequestVltr(xmlHttpRequest, settings.getTimeout(), this);

    xmlHttpRequest.setOnReadyStateChange(new ReadyStateChangeHandler() {
        public void onReadyStateChange(XMLHttpRequest xhr) {
            if (xhr.getReadyState() == XMLHttpRequest.DONE) {
                xhr.clearOnReadyStateChange();
                fireOnResponseReceivedVltr(request, PromiseReqBuilder.this);
            }
        }
    });

    try {
        JsUtils.runJavascriptFunction(xmlHttpRequest, "send",
                isFormData ? data.getDataImpl() : settings.getDataString());
    } catch (JavaScriptException e) {
        onError(null, e);
    }
}

From source file:com.cgxlib.xq.client.plugins.deferred.PromiseReqBuilder.java

License:Apache License

public void onResponseReceived(Request request, Response response) {
    int status = response.getStatusCode();
    if (status <= 0 || status >= 400) {
        String statusText = status <= 0 ? "Bad CORS" : response.getStatusText();
        onError(request,//from   w  ww. j  a v  a  2 s  .  co m
                new RequestException("HTTP ERROR: " + status + " " + statusText + "\n" + response.getText()));
    } else {
        dfd.resolve(response, request);
    }
}

From source file:com.cgxlib.xq.vm.AjaxTransportJre.java

License:Apache License

private Promise getXhr(final Settings settings, final boolean cors) {
    return new PromiseFunction() {
        public void f(Deferred dfd) {
            try {
                Response response = httpClient(settings, cors);
                int status = response.getStatusCode();
                if (status <= 0 || status >= 400) {
                    String statusText = status <= 0 ? "Bad CORS" : response.getStatusText();
                    dfd.reject(//w  ww . java2 s. co m
                            new RequestException(
                                    "HTTP ERROR: " + status + " " + statusText + "\n" + response.getText()),
                            null);
                } else {
                    dfd.resolve(response, null);
                }
            } catch (Exception e) {
                e.printStackTrace();
                dfd.reject(e, null);
            }
        }
    };
}

From source file:com.googlesource.gerrit.plugins.xdocs.client.XDocApi.java

License:Apache License

public static void checkHtml(String url, final AsyncCallback<VoidResult> callback) {
    RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, url);
    try {/*from   w  w w  .  jav  a2s  . c o  m*/
        builder.sendRequest(null, new RequestCallback() {
            @Override
            public void onResponseReceived(Request request, Response response) {
                int status = response.getStatusCode();
                if (200 <= status && status < 300) {
                    callback.onSuccess(VoidResult.create());
                } else {
                    callback.onFailure(new RequestException(status + " " + response.getStatusText()));
                }
            }

            @Override
            public void onError(Request request, Throwable caught) {
                callback.onFailure(caught);
            }
        });
    } catch (RequestException e) {
        callback.onFailure(e);
    }
}

From source file:com.gwtpro.html5.fileapi.client.upload.UploadRequestBuilder.java

License:Apache License

/**
 * Sends a POST request based to upload a file, on the current builder
 * configuration.//from w  w  w .j  av  a  2  s  .c  o m
 * 
 * @return a {@link UploadRequest} object that can be used to track the
 *         request
 * @throws RequestException
 *             if the call fails to initiate
 * @throws NullPointerException
 *             if a request callback has not been set
 */
public UploadRequest sendFile(File file) throws RequestException {
    if (this.callback == null) {
        throw new NullPointerException("callback has not been set");
    }
    XMLHttpRequest2 xmlHttpRequest = XMLHttpRequest2.create();
    final UploadRequest request = new UploadRequest(xmlHttpRequest, this.timeoutMillis, this.callback);
    // progress handler must be set before open!!!
    xmlHttpRequest.setOnUploadProgressHandler(new UploadProgressHandler() {

        @Override
        public void onProgress(int bytesUploaded) {
            UploadRequestBuilder.this.callback.onUploadProgress(request, bytesUploaded);
        }
    });
    try {
        if (this.user != null && this.password != null) {
            xmlHttpRequest.open("POST", this.url, this.user, this.password);
        } else if (this.user != null) {
            xmlHttpRequest.open("POST", this.url, this.user);
        } else {
            xmlHttpRequest.open("POST", this.url);
        }
    } catch (JavaScriptException e) {
        RequestPermissionException requestPermissionException = new RequestPermissionException(this.url);
        requestPermissionException.initCause(new RequestException(e.getMessage()));
        throw requestPermissionException;
    }
    if (this.headers != null) {
        for (Map.Entry<String, String> header : this.headers.entrySet()) {
            try {
                xmlHttpRequest.setRequestHeader(header.getKey(), header.getValue());
            } catch (JavaScriptException e) {
                throw new RequestException(e.getMessage());
            }
        }
    }
    xmlHttpRequest.setOnReadyStateChange(new ReadyStateChangeHandler() {

        public void onReadyStateChange(XMLHttpRequest xhr) {
            if (xhr.getReadyState() == XMLHttpRequest.DONE) {
                xhr.clearOnReadyStateChange();
                request.fireOnResponseReceived(UploadRequestBuilder.this.callback);
            }
        }
    });
    try {
        xmlHttpRequest.sendFile(file);
    } catch (JavaScriptException e) {
        throw new RequestException(e.getMessage());
    }
    return request;
}

From source file:gwt.dojo.showcase.client.Showcase.java

License:Apache License

private void loadAndSwitchView(final ListItem listItem) {

    final RequestCallback requestCallback = new RequestCallback() {
        @Override//w ww . j  a v a  2  s.c o m
        public void onResponseReceived(Request request, Response response) {
            if (200 == response.getStatusCode()) {
                try {
                    // Process the response in response.getText()

                    // fillInDemoSource();
                    DivElement rightPane = Document.get().getElementById("rightPane").cast();
                    DivElement tmpContainer = Document.get().createDivElement();
                    tmpContainer.setInnerHTML(response.getText());
                    rightPane.appendChild(tmpContainer);
                    JsArray ws = MobileParser.parse(tmpContainer);
                    for (int i = 0, n = ws.length(); i < n; i++) {
                        if (ws.getJsObject(i).hasProperty("startup")) {
                            _WidgetBase w = ws.getJsObject(i);
                            w.startup();
                        }
                    }

                    // reparent
                    rightPane.removeChild(tmpContainer);
                    NodeList<Node> children = tmpContainer.getChildNodes();
                    for (int i = 0, n = children.getLength(); i < n; i++) {
                        Element elem = tmpContainer.getChild(i).cast();
                        rightPane.appendChild(elem);
                    }

                    showProgressIndicator(false);
                    Scheduler.get().scheduleDeferred(new ScheduledCommand() {
                        @Override
                        public void execute() {
                            initView(listItem);
                            listItem.transitionTo(listItem.getString("viewId"));
                            // triggreTransition(listItem,
                            // listItem.getString("id"));
                        }
                    });
                } catch (Exception e) {
                    Window.alert("Error: " + e);
                }
            } else {
                // Handle the error. Can get the status text from
                // response.getStatusText()
                onError(request, new RequestException("HTTP Error: " + response.getStatusCode()));
            }
        }

        @Override
        public void onError(Request request, Throwable exception) {
            Window.alert("Failed to load demo.");
            showProgressIndicator(false);
            inTransitionOrLoading = false;
        }
    };

    showProgressIndicator(true);

    String url = listItem.getString("demourl");
    RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, URL.encode(url));

    Request request = null;
    try {
        request = builder.sendRequest(null, requestCallback);
    } catch (RequestException e) {
        requestCallback.onError(request, e);
    }
}

From source file:net.zschech.gwt.comet.client.impl.HTTPRequestCometTransport.java

License:Apache License

@Override
public void connect(int connectionCount) {
    super.connect(connectionCount);
    read = 0;/*from ww w .  ja va  2s.  c  o  m*/

    xmlHttpRequest = XMLHttpRequest.create();
    try {
        xmlHttpRequest.open("GET", getUrl(connectionCount));
        xmlHttpRequest.setRequestHeader("Accept", "application/comet");
        xmlHttpRequest.setOnReadyStateChange(new ReadyStateChangeHandler() {
            @Override
            public void onReadyStateChange(XMLHttpRequest request) {
                if (!disconnecting) {
                    switch (request.getReadyState()) {
                    case XMLHttpRequest.LOADING:
                        onReceiving(request.getStatus(), request.getResponseText());
                        break;
                    case XMLHttpRequest.DONE:
                        onLoaded(request.getStatus(), request.getResponseText());
                        break;
                    }
                }
            }
        });
        xmlHttpRequest.send();
    } catch (JavaScriptException e) {
        xmlHttpRequest = null;
        listener.onError(new RequestException(e.getMessage()), false);
    }
}

From source file:org.atmosphere.gwt.client.impl.HTTPRequestCometTransport.java

License:Apache License

@Override
public void connect(int connectionCount) {
    init();//from   www  .  j a  va2 s .  c o m
    xmlHttpRequest = XMLHttpRequest.create();
    try {
        xmlHttpRequest.open("GET", getUrl(connectionCount));
        xmlHttpRequest.setRequestHeader("Accept", "application/comet");
        xmlHttpRequest.setOnReadyStateChange(new ReadyStateChangeHandler() {
            @Override
            public void onReadyStateChange(XMLHttpRequest request) {
                if (!aborted) {
                    switch (request.getReadyState()) {
                    case XMLHttpRequest.LOADING:
                        onReceiving(request.getStatus(), request.getResponseText());
                        if (needPolling()) {
                            pollingTimer.scheduleRepeating(POLLING_INTERVAL);
                        }
                        break;
                    case XMLHttpRequest.DONE:
                        onLoaded(request.getStatus(), request.getResponseText());
                        pollingTimer.cancel();
                        break;
                    }
                } else {
                    request.clearOnReadyStateChange();
                    if (request.getReadyState() != XMLHttpRequest.DONE) {
                        request.abort();
                    }
                }
            }
        });
        xmlHttpRequest.send();
    } catch (JavaScriptException e) {
        if (xmlHttpRequest != null) {
            xmlHttpRequest.abort();
            xmlHttpRequest = null;
        }
        listener.onError(new RequestException(e.getMessage()), false);
    }
}

From source file:org.atmosphere.gwt.client.impl.IEXDomainRequestCometTransport.java

License:Apache License

@Override
public void connect(int connectionCount) {
    init();/*from w w  w. ja va2s.c o  m*/
    try {
        transportRequest = XDomainRequest.create();
        transportRequest.setListener(xDomainRequestListener);
        transportRequest.openGET(getUrl(connectionCount));
        transportRequest.send();

    } catch (JavaScriptException ex) {
        if (transportRequest != null) {
            transportRequest.abort();
            transportRequest = null;
        }
        listener.onError(new RequestException(ex.getMessage()), false);
    }
}