Example usage for com.google.gwt.http.client RequestCallback onError

Introduction

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

Prototype

void onError(Request request, Throwable exception);

Source Link

Document

Called when a com.google.gwt.http.client.Request does not complete normally.

Usage

From source file:org.plantview.client.request.PlantViewRequestTransport.java

License:Apache License

@Override
protected RequestCallback createRequestCallback(final TransportReceiver delegate) {

    final RequestCallback superCallback = super.createRequestCallback(delegate);
    doBeforeCallback();/*from  w ww .  j a  v  a 2 s  . c  o m*/
    return new RequestCallback() {
        public void onResponseReceived(Request request, Response response) {
            doOnResponseReceived();
            /*
             * The GaeAuthFailure filter responds with Response.SC_UNAUTHORIZED and
             * adds a "login" url header if the user is not logged in. When we
             * receive that combo, post an event so that the app can handle things
             * as it sees fit.
             */

            if (Response.SC_UNAUTHORIZED == response.getStatusCode()) {
                String loginUrl = response.getHeader("login");
                if (loginUrl != null) {
                    /*
                     * Hand the receiver a non-fatal callback, so that
                     * com.google.web.bindery.requestfactory.shared.Receiver will not post a
                     * runtime exception.
                     */
                    delegate.onTransportFailure(
                            new ServerFailure("Unauthenticated user", null, null, false /* not fatal */));
                    eventBus.fireEvent(new AuthenticationFailureEvent(loginUrl));
                    return;
                }
            } else if (Response.SC_BAD_REQUEST == response.getStatusCode()) {
                String unsupportedUrl = response.getHeader("unsupported");
                if (unsupportedUrl != null) {
                    /*
                     * Hand the receiver a non-fatal callback, so that
                     * com.google.web.bindery.requestfactory.shared.Receiver will not post a
                     * runtime exception.
                     */
                    delegate.onTransportFailure(new ServerFailure("Unsupported user agent user", null, null,
                            false /* not fatal */));
                    eventBus.fireEvent(new AuthenticationFailureEvent(unsupportedUrl));
                    return;
                }
            }
            superCallback.onResponseReceived(request, response);
        }

        public void onError(Request request, Throwable exception) {
            doOnError(exception);
            superCallback.onError(request, exception);
        }
    };
}

From source file:org.qipki.clients.web.client.ui.widgets.ExternalResourcePanel.java

License:Open Source License

public void load(final String url, final RequestCallback callback) {
    RequestBuilder rb = new RequestBuilder(RequestBuilder.GET, url);
    rb.setCallback(new RequestCallback() {

        @Override/*  ww  w.ja  va2 s  .co  m*/
        public void onResponseReceived(final Request request, final Response response) {
            new Timer() {

                @Override
                public void run() {
                    panel.clear();
                    panel.add(new HTMLPanel(response.getText()));
                    ExternalResourcePanel.this.url = url;
                    callback.onResponseReceived(request, response);
                }

            }.schedule(2000);
        }

        @Override
        public void onError(Request request, Throwable exception) {
            panel.clear();
            panel.add(new Label("Request ERROR: " + exception.getMessage()));
            callback.onError(request, exception);
        }

    });
    panel.clear();
    if (loadingPanel != null) {
        panel.setWidget(loadingPanel);
    }
    try {
        rb.send();
    } catch (RequestException ex) {
        panel.add(new Label("Request EXCEPTION: " + ex.getMessage()));
    }
}

From source file:org.sonatype.gwt.client.resource.DefaultResource.java

License:Open Source License

protected Request pull(RequestCallback callback, RequestBuilder builder) {
    try {/*from ww w .  j  a v a 2s  . com*/
        return builder.sendRequest(null, callback);
    } catch (RequestException e) {
        callback.onError(null, e);

        return null;
    }
}

From source file:org.sonatype.gwt.client.resource.DefaultResource.java

License:Open Source License

protected Request push(RequestCallback callback, Representation representation, RequestBuilder builder) {
    try {/*  w w w. ja  v  a2 s .com*/
        return builder.sendRequest(representation.getText(), callback);
    } catch (RequestException e) {
        callback.onError(null, e);

        return null;
    }
}

From source file:org.sonatype.gwt.client.resource.DefaultResource.java

License:Open Source License

public Request delete(RequestCallback callback) {
    try {//from   www.j a v a 2 s  .  c  o m
        RequestBuilder builder = restRequestBuilder.buildDelete(this);

        return builder.sendRequest(null, callback);
    } catch (RequestException e) {
        callback.onError(null, e);

        return null;
    }

}

From source file:pl.touk.wonderfulsecurity.gwt.client.rpc.RpcExecutor.java

License:Apache License

public static void execute(RequestBuilder rb, final boolean displayCommunicationStatus) {
    final RequestCallback originalCallback = rb.getCallback();

    /**/*from ww  w  .j  a  va2s.com*/
     * Using default message
     */
    if (displayCommunicationStatus) {

        showServerCommunication(message);
        messageQueue.add(message);
    }

    /**
     * Replacing callback, to be able to get login page location from HTTP header
     */
    rb.setCallback(new RequestCallback() {

        public void onResponseReceived(Request request, Response response) {
            String header = response.getHeader("loginPage");
            if (header != null && header.length() > 0) {
                Redirect.redirect(header);
            }

            if (displayCommunicationStatus) {
                refreshUserMessage();
            }

            originalCallback.onResponseReceived(request, response);
        }

        public void onError(Request request, Throwable exception) {

            if (displayCommunicationStatus) {

                refreshUserMessage();
            }

            if (errorHandler != null) {
                errorHandler.handleError(request, exception);
            }
            originalCallback.onError(request, exception);
        }
    });

    try {
        rb.send();
    } catch (RequestException ex) {
        if (errorHandler != null) {
            errorHandler.handleError(ex);
        }
    }

}

From source file:virtuozo.infra.HttpMethod.java

License:Apache License

void send(RequestCallback callback) {
    Logger.get().debug("Sending http request: " + builder.getHTTPMethod() + " " + builder.getUrl()
            + " ,timeout:" + builder.getTimeoutMillis());

    String content = builder.getRequestData();
    if (content != null && content.length() > 0) {
        Logger.get().debug("Request body:" + content);
    }/*from   www. jav  a  2s . c om*/

    Request request = null;
    try {
        request = this.builder.sendRequest(content, callback);
    } catch (RequestException e) {
        GWT.log("Received http error for: " + builder.getHTTPMethod() + " " + builder.getUrl(), e);
        callback.onError(request, e);
    }
}