List of usage examples for com.google.gwt.xhr.client XMLHttpRequest open
public void open(String httpMethod, String url)
From source file:forplay.html.HtmlAssetManager.java
License:Apache License
private void doXhr(final String fullPath, final ResourceCallback<String> callback) { XMLHttpRequest xhr = XMLHttpRequest.create(); xhr.setOnReadyStateChange(new ReadyStateChangeHandler() { @Override// w w w.j ava 2 s .c o m public void onReadyStateChange(XMLHttpRequest xhr) { int readyState = xhr.getReadyState(); if (readyState == XMLHttpRequest.DONE) { int status = xhr.getStatus(); // status code 0 will be returned for non-http requests, e.g. file:// if (status != 0 && (status < 200 || status >= 400)) { ForPlay.log().error("xhr::onReadyStateChange[" + fullPath + "](readyState = " + readyState + "; status = " + status + ")"); callback.error( new RuntimeException("Error getting " + fullPath + " : " + xhr.getStatusText())); } else { if (LOG_XHR_SUCCESS) { ForPlay.log().debug("xhr::onReadyStateChange[" + fullPath + "](readyState = " + readyState + "; status = " + status + ")"); } callback.done(xhr.getResponseText()); } } } }); if (LOG_XHR_SUCCESS) { ForPlay.log().debug("xhr.open('GET', '" + fullPath + "')..."); } xhr.open("GET", fullPath); if (LOG_XHR_SUCCESS) { ForPlay.log().debug("xhr.send()..."); } xhr.send(); }
From source file:forplay.html.HtmlNet.java
License:Apache License
public void get(String url, final Callback callback) { try {//from w w w . j a v a 2 s . c om XMLHttpRequest xhr = XMLHttpRequest.create(); xhr.open("GET", url); xhr.setOnReadyStateChange(new ReadyStateChangeHandler() { @Override public void onReadyStateChange(XMLHttpRequest xhr) { if (xhr.getReadyState() == XMLHttpRequest.DONE) { if (xhr.getStatus() >= 400) { callback.failure(new RuntimeException("Bad HTTP status code: " + xhr.getStatus())); } else { callback.success(xhr.getResponseText()); } } } }); xhr.send(); } catch (Exception e) { callback.failure(e); } }
From source file:forplay.html.HtmlNet.java
License:Apache License
public void post(String url, String data, final Callback callback) { try {/*from ww w. j a va2 s . c o m*/ XMLHttpRequest xhr = XMLHttpRequest.create(); xhr.open("POST", url); xhr.setOnReadyStateChange(new ReadyStateChangeHandler() { @Override public void onReadyStateChange(XMLHttpRequest xhr) { if (xhr.getReadyState() == XMLHttpRequest.DONE) { if (xhr.getStatus() >= 400) { callback.failure(new RuntimeException("Bad HTTP status code: " + xhr.getStatus())); } else { callback.success(xhr.getResponseText()); } } } }); xhr.send(data); } catch (Exception e) { callback.failure(e); } }
From source file:io.reinert.requestor.RequestDispatcherImpl.java
License:Apache License
@Override protected <D> void send(RequestOrder request, final Deferred<D> deferred, Class<D> resolveType, @Nullable Class<?> parametrizedType) { final HttpMethod httpMethod = request.getMethod(); final String url = request.getUrl(); final Headers headers = request.getHeaders(); final Payload payload = request.getPayload(); final ResponseType responseType = request.getResponseType(); // Create XMLHttpRequest final XMLHttpRequest xmlHttpRequest = (XMLHttpRequest) XMLHttpRequest.create(); // Open XMLHttpRequest try {//from w ww . ja va 2 s. co m xmlHttpRequest.open(httpMethod.getValue(), url); } catch (JavaScriptException e) { RequestPermissionException requestPermissionException = new RequestPermissionException(url); requestPermissionException.initCause(new RequestException(e.getMessage())); deferred.reject(requestPermissionException); return; } // Set withCredentials xmlHttpRequest.setWithCredentials(request.isWithCredentials()); // Fulfill headers try { setHeaders(headers, xmlHttpRequest); } catch (JavaScriptException e) { deferred.reject(new RequestException("Could not manipulate the XHR headers: " + e.getMessage())); return; } // Set responseType xmlHttpRequest.setResponseType(responseType.getValue()); // Create RequestCallback final RequestCallback callback = getRequestCallback(request, xmlHttpRequest, deferred, resolveType, parametrizedType); // Create the underlying request from gwt.http module final com.google.gwt.http.client.Request gwtRequest = new com.google.gwt.http.client.Request(xmlHttpRequest, request.getTimeout(), callback); // Properly configure XMLHttpRequest's onreadystatechange xmlHttpRequest.setOnReadyStateChange(new ReadyStateChangeHandler() { public void onReadyStateChange(com.google.gwt.xhr.client.XMLHttpRequest xhr) { if (xhr.getReadyState() == XMLHttpRequest.DONE) { xhr.clearOnReadyStateChange(); ((XMLHttpRequest) xhr).clearOnProgress(); gwtRequest.fireOnResponseReceived(callback); } } }); // Set XMLHttpRequest's onprogress if available binding to promise's progress xmlHttpRequest.setOnProgress(new ProgressHandler() { @Override public void onProgress(ProgressEvent progress) { deferred.notifyDownload(new RequestProgressImpl(progress)); } }); // Set XMLHttpRequest's upload onprogress if available binding to promise's progress xmlHttpRequest.setUploadOnProgress(new ProgressHandler() { @Override public void onProgress(ProgressEvent progress) { deferred.notifyUpload(new RequestProgressImpl(progress)); } }); // Pass the connection to the deferred to enable it to cancel the request if necessary (RECOMMENDED) deferred.setHttpConnection(getConnection(gwtRequest)); // Send the request try { if (payload != null) { if (payload.isString() != null) { xmlHttpRequest.send(payload.isString()); } else { xmlHttpRequest.send(payload.isJavaScriptObject()); } } else { xmlHttpRequest.send(); } } catch (JavaScriptException e) { deferred.reject(new RequestDispatchException("Could not send the XHR: " + e.getMessage())); } }
From source file:jake2.gwt.client.GwtResourceLoaderImpl.java
License:Open Source License
public void loadResourceAsync(final String path, final ResourceLoader.Callback callback) { XMLHttpRequest req = XMLHttpRequest.create(); final String eol = path.endsWith(".bsp") ? "\n" : "\r"; final Exception e = new Exception(); final int mySequenceNumber = freeSequenceNumber++; req.setOnReadyStateChange(new ReadyStateChangeHandler() { boolean receivingMsg; public void onReadyStateChange(final XMLHttpRequest xhr) { if (xhr.getReadyState() == 3 && !receivingMsg) { Com.Printf("Receiving #" + mySequenceNumber + ": " + path + eol); receivingMsg = true;/*from ww w .j a v a 2s . co m*/ } else if (xhr.getReadyState() == 4) { if (mySequenceNumber < ignoreSequenceNumbersBelow) { Com.Printf("Ignoring outdated response #" + mySequenceNumber + ": " + path + "\n"); } else { String response; if (xhr.getStatus() != 200) { Com.Printf("Failed to load file #" + currentSequenceNumber + "\n"); Compatibility.printStackTrace(e); ResourceLoader.fail(new IOException("status = " + xhr.getStatus())); response = null; } else { response = xhr.getResponseText(); Com.Printf("Received response #" + mySequenceNumber + ": " + path + "\r"); } readyList.add(0, new ResponseHandler(mySequenceNumber, callback, response)); if (mySequenceNumber == currentSequenceNumber) { processReadyList(); } } } } }); Com.Printf("Requesting: " + path + eol); overrideMimeType(req, "text/plain; charset=x-user-defined"); req.open("GET", "/baseq2/" + path); req.send(); }
From source file:net.npe.gwt.xhr.client.ArrayBufferRequest.java
License:MIT License
public ArrayBufferRequest(String url, final Handler handler) { xhr = XMLHttpRequest.create();// w w w.ja v a 2 s.com xhr.setResponseType(ResponseType.ArrayBuffer); xhr.setOnReadyStateChange(new ReadyStateChangeHandler() { @Override public void onReadyStateChange(XMLHttpRequest xhr) { if (xhr.getReadyState() == XMLHttpRequest.DONE) { if (xhr.getStatus() >= 400) { if (handler != null) handler.onFailure(); } else { if (handler != null) handler.onSuccess(xhr.getResponseArrayBuffer()); } } } }); xhr.open("GET", url); }
From source file:net.npe.image.util.gwt.GwtImageReader.java
License:MIT License
public static void read(final String url, final PixelImageRequestHandler handler) { XMLHttpRequest xhr = XMLHttpRequest.create(); xhr.setResponseType(ResponseType.ArrayBuffer); xhr.setOnReadyStateChange(new ReadyStateChangeHandler() { @Override/*w w w . j av a 2 s. c om*/ public void onReadyStateChange(XMLHttpRequest xhr) { if (xhr.getReadyState() == XMLHttpRequest.DONE) { if (xhr.getStatus() >= 400) { handler.onFailure(xhr.getStatusText()); } else { ImageType type = ImageReader.getImageType(url); if (type != null) { ArrayBuffer arrayBuffer = xhr.getResponseArrayBuffer(); try { PixelImage image = read(arrayBuffer, type); handler.onSuccess(image); } catch (Exception e) { e.printStackTrace(); } } else { handler.onFailure("Unsupport image format: " + url); } } } } }); xhr.open("GET", url); }
From source file:net.npe.image.util.gwt.GwtImageReader.java
License:MIT License
public static void createCanvas(final String url, final CanvasRequestHandler handler) { XMLHttpRequest xhr = XMLHttpRequest.create(); xhr.setResponseType(ResponseType.ArrayBuffer); xhr.setOnReadyStateChange(new ReadyStateChangeHandler() { @Override/*from ww w. java 2 s.co m*/ public void onReadyStateChange(XMLHttpRequest xhr) { if (xhr.getReadyState() == XMLHttpRequest.DONE) { if (xhr.getStatus() >= 400) { handler.onFailure(xhr.getStatusText()); } else { ImageType type = ImageReader.getImageType(url); if (type != null) { ArrayBuffer arrayBuffer = xhr.getResponseArrayBuffer(); try { Canvas canvas = createCanvas(arrayBuffer, type); handler.onSuccess(canvas); } catch (Exception e) { e.printStackTrace(); } } else { handler.onFailure("Unsupport image format: " + url); } } } } }); xhr.open("GET", url); }
From source file:org.parallax3d.parallax.platforms.gwt.preloader.AssetDownloader.java
License:Apache License
public void loadText(String url, final FileListener<String> listener) { XMLHttpRequest request = XMLHttpRequest.create(); request.setOnReadyStateChange(new ReadyStateChangeHandler() { @Override/*from w w w . j av a 2s. c o m*/ public void onReadyStateChange(XMLHttpRequest xhr) { if (xhr.getReadyState() == XMLHttpRequest.DONE) { if (xhr.getStatus() != 200) { listener.onFailure(); } else { listener.onSuccess(xhr.getResponseText()); } } } }); setOnProgress(request, listener); request.open("GET", url); request.setRequestHeader("Content-Type", "text/plain; charset=utf-8"); request.send(); }
From source file:org.parallax3d.parallax.platforms.gwt.preloader.AssetDownloader.java
License:Apache License
public void loadBinary(final String url, final FileListener<Blob> listener) { XMLHttpRequest request = XMLHttpRequest.create(); request.setOnReadyStateChange(new ReadyStateChangeHandler() { @Override//from w ww.j a v a 2 s . c o m public void onReadyStateChange(XMLHttpRequest xhr) { if (xhr.getReadyState() == XMLHttpRequest.DONE) { if (xhr.getStatus() != 200) { listener.onFailure(); } else { Int8Array data = TypedArrays.createInt8Array(xhr.getResponseArrayBuffer()); listener.onSuccess(new Blob(data)); } } } }); setOnProgress(request, listener); request.open("GET", url); request.setResponseType(ResponseType.ArrayBuffer); request.send(); }