Example usage for com.google.gwt.http.client RequestBuilder GET

Introduction

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

Prototype

Method GET

To view the source code for com.google.gwt.http.client RequestBuilder GET.

Click Source Link

Document

Specifies that the HTTP GET method should be used.

Usage

From source file:ca.upei.ic.timetable.client.Remote.java

License:Apache License

/**
 * Calls a remote method using HTTP GET// ww  w .j av a 2 s.c o m
 * 
 * @param method
 * @param params
 * @param callback
 */
public Request get(String method, Map<String, String> params, RequestCallback callback) {
    // build the query
    StringBuffer q = new StringBuffer();
    q.append("?method=" + method);

    if (null != params) {
        for (String key : params.keySet()) {
            q.append("&" + key + "=" + params.get(key));
        }
    }

    // build the request builder
    RequestBuilder req = new RequestBuilder(RequestBuilder.GET, url_ + q);

    req.setRequestData("");
    req.setCallback(callback);
    Request request = null;
    try {
        request = req.send();
    } catch (RequestException re) {
        callback.onError(request, re);
    }
    return request;
}

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From source file:cc.kune.core.client.actions.xml.XMLActionsParser.java

License:GNU Affero Public License

/**
 * Instantiates a new xML actions parser.
 *
 * @param errHandler/*from  w w  w  .j  a  v  a 2s.  com*/
 *          the err handler
 * @param contentViewer
 *          the content viewer
 * @param actionRegistry
 *          the action registry
 * @param contentService
 *          the content service
 * @param session
 *          the session
 * @param stateManager
 *          the state manager
 * @param i18n
 *          the i18n
 * @param newMenusRegistry
 *          the new menus registry
 * @param services
 *          the services
 */
@Inject
public XMLActionsParser(final ErrorHandler errHandler, final ContentViewerPresenter contentViewer,
        final ActionRegistryByType actionRegistry, final Provider<ContentServiceAsync> contentService,
        final Session session, final StateManager stateManager, final I18nTranslationService i18n,
        final NewMenusForTypeIdsRegistry newMenusRegistry, final Services services) {
    this.errHandler = errHandler;
    this.contentViewer = contentViewer;
    this.actionRegistry = actionRegistry;
    this.contentService = contentService;
    this.session = session;
    this.stateManager = stateManager;
    this.i18n = i18n;
    this.newMenusRegistry = newMenusRegistry;
    submenus = new HashMap<String, SubMenuDescriptor>();
    // Based on:
    // http://www.roseindia.net/tutorials/gwt/retrieving-xml-data.shtml
    final RequestBuilder requestBuilder = new RequestBuilder(RequestBuilder.GET,
            XMLActionsConstants.ACTIONS_XML_LOCATION_PATH_ABS);
    session.onAppStart(false, new AppStartHandler() {
        @Override
        public void onAppStart(final AppStartEvent event) {
            try {
                requestBuilder.sendRequest(null, new RequestCallback() {
                    @Override
                    public void onError(final Request request, final Throwable ex) {
                        onFailed(ex);
                    }

                    @Override
                    public void onResponseReceived(final Request request, final Response response) {
                        parse(new XMLKuneClientActions(services, response.getText()));
                    }
                });
            } catch (final RequestException ex) {
                onFailed(ex);
            }
        }
    });
}

---

From source file:cc.kune.core.client.auth.WaveClientSimpleAuthenticator.java

License:GNU Affero Public License

/**
 * Do logout.// w  w w.j  a  v a2s.co m
 * 
 * @param callback
 *          the callback
 */
public void doLogout(final AsyncCallback<Void> callback) {
    // Original: <a href=\"/auth/signout?r=/\">"
    final RequestBuilder request = new RequestBuilder(RequestBuilder.GET, "/auth/signout");
    try {
        request.setHeader("Content-Type", "application/x-www-form-urlencoded");
        final StringBuffer params = new StringBuffer();
        request.sendRequest(params.toString(), new RequestCallback() {
            @Override
            public void onError(final Request request, final Throwable exception) {
                StackErrorEvent.fire(eventBus, exception);
                callback.onFailure(exception);
            }

            @Override
            public void onResponseReceived(final Request request, final Response response) {
                callback.onSuccess(null);
            }
        });
    } catch (final RequestException e) {
        StackErrorEvent.fire(eventBus, e);
    }
}

---

From source file:cc.kune.core.client.sitebar.search.MultivalueSuggestBox.java

License:GNU Affero Public License

/**
 * Retrieve Options (name-value pairs) that are suggested from the REST
 * endpoint//from  www. ja va  2  s.c o m
 * 
 * @param query
 *          - the String search term
 * @param from
 *          - the 0-based begin index int
 * @param to
 *          - the end index inclusive int
 * @param callback
 *          - the OptionQueryCallback to handle the response
 */
private void queryOptions(final String query, final int from, final int to,
        final OptionQueryCallback callback) {
    final RequestBuilder builder = new RequestBuilder(RequestBuilder.GET,
            URL.encode(mrestEndpointUrl + "?" + SearcherConstants.QUERY_PARAM + "=" + query + "&"
                    + SearcherConstants.START_PARAM + "=" + from + "&" + SearcherConstants.LIMIT_PARAM + "="
                    + PAGE_SIZE));

    // Set our headers
    builder.setHeader("Accept", "application/json; charset=utf-8");

    // Fails on chrome
    // builder.setHeader("Accept-Charset", "UTF-8");

    builder.setCallback(new RequestCallback() {

        @Override
        public void onError(final com.google.gwt.http.client.Request request, final Throwable exception) {
            callback.error(exception);
        }

        @Override
        public void onResponseReceived(final com.google.gwt.http.client.Request request,
                final Response response) {
            final JSONValue val = JSONParser.parse(response.getText());
            final JSONObject obj = val.isObject();
            final int totSize = (int) obj.get(OptionResultSet.TOTAL_SIZE).isNumber().doubleValue();
            final OptionResultSet options = new OptionResultSet(totSize);
            final JSONArray optionsArray = obj.get(OptionResultSet.OPTIONS).isArray();

            if (options.getTotalSize() > 0 && optionsArray != null) {

                for (int i = 0; i < optionsArray.size(); i++) {
                    if (optionsArray.get(i) == null) {
                        /*
                         * This happens when a JSON array has an invalid trailing comma
                         */
                        continue;
                    }

                    final JSONObject jsonOpt = optionsArray.get(i).isObject();
                    final Option option = new Option();

                    final String longName = jsonOpt.get(OptionResultSet.DISPLAY_NAME).isString().stringValue();
                    final String shortName = jsonOpt.get(OptionResultSet.VALUE).isString().stringValue();
                    final JSONValue groupTypeJsonValue = jsonOpt.get("groupType");
                    final String prefix = groupTypeJsonValue.isString() == null ? ""
                            : GroupType.PERSONAL.name().equals(groupTypeJsonValue.isString().stringValue())
                                    ? I18n.t("User") + ": "
                                    : I18n.t("Group") + ": ";
                    option.setName(prefix
                            + (!longName.equals(shortName) ? longName + " (" + shortName + ")" : shortName));
                    option.setValue(jsonOpt.get(OptionResultSet.VALUE).isString().stringValue());
                    options.addOption(option);
                }
            }
            callback.success(options);
        }
    });

    try {
        if (lastQuery != null && lastQuery.isPending()) {
            lastQuery.cancel();
        }
        lastQuery = builder.send();
    } catch (final RequestException e) {
        updateFormFeedback(FormFeedback.ERROR, "Error: " + e.getMessage());
    }

}

---

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

License:GNU Affero Public License

/**
 * Process request.// w ww  .j a v a  2  s .  co  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:ccc.client.gwt.core.GWTRequestExecutor.java

License:Open Source License

private Method getMethod(final HttpMethod method) {
    switch (method) {
    case GET:/*from w ww  . j  av  a2s.  c  o m*/
        return RequestBuilder.GET;
    case POST:
        return RequestBuilder.POST;
    case PUT:
        return RequestBuilder.POST;
    case DELETE:
        return RequestBuilder.POST;
    default:
        throw new IllegalArgumentException("Unsupported HTTP method: " + method);
    }
}

---

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  w w w.  j  a  va2 s. c o 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  a va  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.systemsx.cisd.openbis.generic.client.web.client.application.framework.HtmlPage.java

License:Apache License

public HtmlPage(final String widgetId) {
    final RequestBuilder requestBuilder = new RequestBuilder(RequestBuilder.GET, pageUrl = createUrl(widgetId));
    try {//  ww  w . ja va  2  s . c  om
        requestBuilder.sendRequest(null, new HelpRequestCallback());
    } catch (final RequestException ex) {
        displayException(ex);
    }
}

---

From source file:ch.unifr.pai.twice.comm.clientServerTime.client.ClientServerTimeOffset.java

License:Apache License

/**
 * The method sends a request asynchronously to the server side ({@link PingServlet}) and measures the time that it takes. The offset is then defined by
 * dividing the resulting round-trip time by two given the theoretical assumption that the connection is symmetrical (identical up- and downstream speed).
 * Although this requirement is almost never the case, it is precise enough for not affecting user experience and allows to establish a consistent event
 * ordering mechanism between distributed systems.
 * //  w  ww  . j  a va 2 s. c  om
 * @param callback
 *            called at the end of the request providing the estimated offset between the server side and the local system clock in milliseconds.
 */
public static void getServerTimeOffset(final AsyncCallback<Long> callback) {
    RequestBuilder rb = new RequestBuilder(RequestBuilder.GET, GWT.getHostPageBaseURL() + "ping");
    final long startTime = getCurrentTime();
    try {
        rb.sendRequest(null, createServerTimeOffsetRequestCallback(callback, startTime));
    } catch (RequestException e) {
        callback.onFailure(e);
    }
}

---

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