Examples with Request com.google.gwt.http.client.Request used on opensource projects

Example 1 with Request

use of com.google.gwt.http.client.Request in project opentsdb by OpenTSDB.

the class QueryUi method asyncGetJson.

private void asyncGetJson(final String url, final GotJsonCallback callback) {
    final RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, url);
    try {
        builder.sendRequest(null, new RequestCallback() {

            public void onError(final Request request, final Throwable e) {
                displayError("Failed to get " + url + ": " + e.getMessage());
                // Since we don't call the callback we've been given, reset this
                // bit of state as we're not going to retry anything right now.
                pending_requests = 0;
            }

            public void onResponseReceived(final Request request, final Response response) {
                final int code = response.getStatusCode();
                if (code == Response.SC_OK) {
                    clearError();
                    callback.got(JSONParser.parse(response.getText()));
                    return;
                } else if (code >= Response.SC_BAD_REQUEST) {
                    // 400+ => Oops.
                    // Since we don't call the callback we've been given, reset this
                    // bit of state as we're not going to retry anything right now.
                    pending_requests = 0;
                    String err = response.getText();
                    // an error message.
                    if (!err.isEmpty() && err.charAt(0) == '{') {
                        final JSONValue json = JSONParser.parse(err);
                        final JSONObject result = json == null ? null : json.isObject();
                        final JSONValue jerr = result == null ? null : result.get("err");
                        final JSONString serr = jerr == null ? null : jerr.isString();
                        err = serr.stringValue();
                        // If the error message has multiple lines (which is common if
                        // it contains a stack trace), show only the first line and
                        // hide the rest in a panel users can expand.
                        final int newline = err.indexOf('\n', 1);
                        final String msg = "Request failed: " + response.getStatusText();
                        if (newline < 0) {
                            displayError(msg + ": " + err);
                        } else {
                            displayError(msg);
                            final DisclosurePanel dp = new DisclosurePanel(err.substring(0, newline));
                            // Attach the widget.
                            RootPanel.get("queryuimain").add(dp);
                            final InlineLabel content = new InlineLabel(err.substring(newline, err.length()));
                            // For readable stack traces.
                            content.addStyleName("fwf");
                            dp.setContent(content);
                            current_error.getElement().appendChild(dp.getElement());
                        }
                    } else {
                        displayError("Request failed while getting " + url + ": " + response.getStatusText());
                        // Since we don't call the callback we've been given, reset this
                        // bit of state as we're not going to retry anything right now.
                        pending_requests = 0;
                    }
                    graphstatus.setText("");
                }
            }
        });
    } catch (RequestException e) {
        displayError("Failed to get " + url + ": " + e.getMessage());
    }
}

Example 2 with Request

use of com.google.gwt.http.client.Request in project libgdx by libgdx.

the class GwtNet method cancelHttpRequest.

@Override
public void cancelHttpRequest(HttpRequest httpRequest) {
    HttpResponseListener httpResponseListener = listeners.get(httpRequest);
    Request request = requests.get(httpRequest);
    if (httpResponseListener != null && request != null) {
        request.cancel();
        httpResponseListener.cancelled();
        requests.remove(httpRequest);
        listeners.remove(httpRequest);
    }
}

Example 3 with Request

use of com.google.gwt.http.client.Request in project opennms by OpenNMS.

the class Navigation method linkTopOpenNMSClicked.

@UiHandler("m_link")
public void linkTopOpenNMSClicked(ClickEvent event) {
    StringBuffer postData = new StringBuffer();
    // note param pairs are separated by a '&' 
    // and each key-value pair is separated by a '='
    postData.append(URL.encode("j_username")).append("=").append(URL.encode("ipv6"));
    postData.append("&");
    postData.append(URL.encode("j_password")).append("=").append(URL.encode("ipv6"));
    postData.append("&");
    postData.append(URL.encode("Login")).append("=").append(URL.encode("login"));
    RequestBuilder builder = new RequestBuilder(RequestBuilder.POST, URL.encode("/opennms/j_spring_security_check"));
    builder.setHeader("Content-type", "application/x-www-form-urlencoded");
    try {
        builder.sendRequest(postData.toString(), new RequestCallback() {

            @Override
            public void onResponseReceived(Request request, Response response) {
                if (response.getStatusCode() == 200) {
                    Window.open("/opennms/index.jsp", "_target", null);
                } else {
                    Window.alert("Failed to login");
                }
            }

            @Override
            public void onError(Request request, Throwable exception) {
                Window.alert("Problem Logging in");
            }
        });
    } catch (RequestException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
//Window.alert("Cliking link to OpenNMS");
}

Example 4 with Request

use of com.google.gwt.http.client.Request in project gerrit by GerritCodeReview.

the class Gerrit method getDocIndex.

private static void getDocIndex(final AsyncCallback<DocInfo> cb) {
    RequestBuilder req = new RequestBuilder(RequestBuilder.HEAD, GWT.getHostPageBaseURL() + INDEX);
    req.setCallback(new RequestCallback() {

        @Override
        public void onResponseReceived(Request req, Response resp) {
            switch(resp.getStatusCode()) {
                case Response.SC_OK:
                case Response.SC_MOVED_PERMANENTLY:
                case Response.SC_MOVED_TEMPORARILY:
                    cb.onSuccess(DocInfo.create());
                    break;
                default:
                    cb.onSuccess(null);
                    break;
            }
        }

        @Override
        public void onError(Request request, Throwable e) {
            cb.onFailure(e);
        }
    });
    try {
        req.send();
    } catch (RequestException e) {
        cb.onFailure(e);
    }
}

Example 5 with Request

use of com.google.gwt.http.client.Request in project libgdx by libgdx.

the class GwtNet method sendHttpRequest.

@Override
public void sendHttpRequest(final HttpRequest httpRequest, final HttpResponseListener httpResultListener) {
    if (httpRequest.getUrl() == null) {
        httpResultListener.failed(new GdxRuntimeException("can't process a HTTP request without URL set"));
        return;
    }
    final String method = httpRequest.getMethod();
    final String value = httpRequest.getContent();
    final boolean valueInBody = method.equalsIgnoreCase(HttpMethods.POST) || method.equals(HttpMethods.PUT);
    RequestBuilder builder;
    String url = httpRequest.getUrl();
    if (method.equalsIgnoreCase(HttpMethods.GET)) {
        if (value != null) {
            url += "?" + value;
        }
        builder = new RequestBuilder(RequestBuilder.GET, url);
    } else if (method.equalsIgnoreCase(HttpMethods.POST)) {
        builder = new RequestBuilder(RequestBuilder.POST, url);
    } else if (method.equalsIgnoreCase(HttpMethods.DELETE)) {
        if (value != null) {
            url += "?" + value;
        }
        builder = new RequestBuilder(RequestBuilder.DELETE, url);
    } else if (method.equalsIgnoreCase(HttpMethods.PUT)) {
        builder = new RequestBuilder(RequestBuilder.PUT, url);
    } else {
        throw new GdxRuntimeException("Unsupported HTTP Method");
    }
    Map<String, String> content = httpRequest.getHeaders();
    Set<String> keySet = content.keySet();
    for (String name : keySet) {
        builder.setHeader(name, content.get(name));
    }
    builder.setTimeoutMillis(httpRequest.getTimeOut());
    builder.setIncludeCredentials(httpRequest.getIncludeCredentials());
    try {
        Request request = builder.sendRequest(valueInBody ? value : null, new RequestCallback() {

            @Override
            public void onResponseReceived(Request request, Response response) {
                httpResultListener.handleHttpResponse(new HttpClientResponse(response));
                requests.remove(httpRequest);
                listeners.remove(httpRequest);
            }

            @Override
            public void onError(Request request, Throwable exception) {
                httpResultListener.failed(exception);
                requests.remove(httpRequest);
                listeners.remove(httpRequest);
            }
        });
        requests.put(httpRequest, request);
        listeners.put(httpRequest, httpResultListener);
    } catch (Throwable e) {
        httpResultListener.failed(e);
    }
}