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

Introduction

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

Prototype

protected RequestBuilder(String httpMethod, String url) 

Source Link

Document

Creates a builder using the parameters values for configuration.

Usage

From source file:com.msco.mil.client.com.sencha.gxt.explorer.client.tree.AsyncJsonTreeExample.java

License:sencha.com license

public Widget asWidget() {
    JsonTreeAutoBeanFactory factory = GWT.create(JsonTreeAutoBeanFactory.class);

    DataRecordJsonReader reader = new DataRecordJsonReader(factory, RecordResult.class);

    RequestBuilder rb = new RequestBuilder(RequestBuilder.GET, GWT.getModuleBaseURL() + "jsontreeloader");
    HttpProxy<Record> jsonProxy = new HttpProxy<Record>(rb);
    jsonProxy.setWriter(new UrlEncodingWriter<Record>(factory, Record.class));

    TreeLoader<Record> loader = new TreeLoader<Record>(jsonProxy, reader) {
        @Override/*from   ww  w.  java2s  . co  m*/
        public boolean hasChildren(Record parent) {
            return parent.isFolder();
        }

    };

    ContentPanel panel = new ContentPanel();
    panel.setHeadingText("Async Json Tree");
    panel.setPixelSize(315, 400);
    panel.addStyleName("margin-10");

    VerticalLayoutContainer con = new VerticalLayoutContainer();
    panel.add(con);

    TreeStore<Record> store = new TreeStore<Record>(new RecordKeyProvider());
    loader.addLoadHandler(new ChildTreeStoreBinding<Record>(store));

    final Tree<Record, String> tree = new Tree<Record, String>(store, new ValueProvider<Record, String>() {

        @Override
        public String getValue(Record object) {
            return object.getName();
        }

        @Override
        public void setValue(Record object, String value) {
        }

        @Override
        public String getPath() {
            return "name";
        }
    });
    tree.setLoader(loader);
    tree.getStyle().setLeafIcon(ExampleImages.INSTANCE.music());

    ToolBar buttonBar = new ToolBar();

    buttonBar.add(new TextButton("Expand All", new SelectHandler() {

        @Override
        public void onSelect(SelectEvent event) {
            tree.expandAll();
        }
    }));
    buttonBar.add(new TextButton("Collapse All", new SelectHandler() {
        @Override
        public void onSelect(SelectEvent event) {
            tree.collapseAll();
        }

    }));

    con.add(buttonBar, new VerticalLayoutData(1, -1));
    con.add(tree, new VerticalLayoutData(1, 1));

    return panel;
}

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From source file:com.nanosim.client.ContentWidget.java

License:Apache License

/**
 * Load the contents of a remote file into the specified widget.
 * //from   w  w  w .j  a v  a2 s  .  c om
 * @param url a partial path relative to the module base URL
 * @param target the target Widget to place the contents
 * @param callback the callback when the call completes
 */
protected void requestSourceContents(String url, final HTML target, final RequestCallback callback) {
    // Show the loading image
    if (loadingImage == null) {
        loadingImage = "<img src=\"" + GWT.getModuleBaseURL() + "images/loading.gif\">";
    }
    DOM.setStyleAttribute(target.getElement(), "textAlign", "left");
    target.setHTML("&nbsp;&nbsp;" + loadingImage);

    // Request the contents of the file
    RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, GWT.getModuleBaseURL() + url);
    RequestCallback realCallback = new RequestCallback() {
        public void onError(Request request, Throwable exception) {
            target.setHTML("Cannot find resource");
            if (callback != null) {
                callback.onError(request, exception);
            }
        }

        public void onResponseReceived(Request request, Response response) {
            target.setHTML(response.getText());
            if (callback != null) {
                callback.onResponseReceived(request, response);
            }
        }
    };
    builder.setCallback(realCallback);

    // Send the request
    Request request = null;
    try {
        request = builder.send();
    } catch (RequestException e) {
        realCallback.onError(request, e);
    }
}

---

From source file:com.oracle.wci.user.registration.client.AsyncCall.java

License:Apache License

/**
 * Do post information via AJAX call to the server.
 * /*from   w  ww  .ja v a  2s .c  o m*/
 * @param url
 * @param requestData
 */
public static void doPost(String url, String requestData) {
    RequestBuilder builder = new RequestBuilder(RequestBuilder.POST, url);

    try {
        builder.setTimeoutMillis(MAX_TIMEOUT);

        // Request response =
        builder.sendRequest(requestData, new RequestCallback() {
            public void onResponseReceived(Request request, Response response) {
            }

            public void onError(Request request, Throwable exception) {
                if (exception instanceof RequestTimeoutException) {
                    Window.alert(((RequestTimeoutException) exception).getMessage());
                } else {
                    Window.alert(exception.getMessage());
                }
            }
        });

    } catch (com.google.gwt.http.client.RequestException e) {
        Window.alert("Unable to send the request: " + e.getMessage());
    }
}

---

From source file:com.qtitools.player.client.util.xml.XMLDocument.java

License:Open Source License

/**
 * Create assessment from xml//from ww  w .j a v  a2  s. co  m
 */
public XMLDocument(String url, IDocumentLoaded l) {

    listener = l;
    RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, URL.encode(url));
    baseUrl = url.substring(0, url.lastIndexOf("/") + 1);

    errorString = null;
    try {
        builder.sendRequest(null, new RequestCallback() {
            public void onError(Request request, Throwable exception) {
                // Couldn't connect to server (could be timeout, SOP violation, etc.)    
                errorString = "Error" + exception.toString();
            }

            public void onResponseReceived(Request request, Response response) {
                // StatusCode == 0 when loading from local file
                try {
                    if (response.getStatusCode() == 200 || response.getStatusCode() == 0) {

                        dom = XMLParser.parse(response.getText());
                        listener.finishedLoading(dom, baseUrl);

                    } else {
                        // Handle the error.  Can get the status text from response.getStatusText()
                        errorString = "Wrong status: " + response.getText();
                        listener.loadingErrorHandler(errorString);
                    }
                } catch (Exception e) {
                    listener.loadingErrorHandler(e.getMessage());
                }
            }
        });

    } catch (RequestException e) {
        // Couldn't connect to server    
        errorString = "Can't connect to the server: " + e.toString();
    } catch (DOMException e) {
        errorString = "Could not parse file: " + url;
    }

    if (errorString != null)
        listener.loadingErrorHandler(errorString);

}

---

From source file:com.risevision.viewer.client.data.GadgetScriptController.java

License:Open Source License

public static void retrieveScript() {
    try {// w w  w  .  j  ava  2 s  . c o m
        new RequestBuilder(RequestBuilder.GET, "gadgets/gadgets.min.js").sendRequest("", new RequestCallback() {
            @Override
            public void onResponseReceived(Request req, Response resp) {
                gadgetScript = GADGET_SCRIPT_TAG.replace("%gadgetScript%", resp.getText());
            }

            @Override
            public void onError(Request res, Throwable throwable) {
                // handle errors
            }
        });
    } catch (RequestException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}

---

From source file:com.robustaweb.library.gwt.GwtRestClient.java

License:Apache License

/**
 * {@inheritDoc }/*from w  w  w.  j  a  va2  s .  c om*/
 */
@Override
protected void executeMethod(HttpMethod method, String url, String requestBody, Callback callback)
        throws HttpException {

    try {
        RequestBuilder.Method meth = null;
        switch (method) {
        case GET:
            meth = RequestBuilder.GET;
            break;
        case POST:
            meth = RequestBuilder.POST;
            break;
        case DELETE:
            meth = RequestBuilder.DELETE;
            break;
        case PUT:
            meth = RequestBuilder.PUT;
            break;
        default:
            throw new IllegalStateException("No method valid for : " + method);
        }
        this.builder = new RequestBuilder(meth, url);

        if (this.contentType != null && !this.contentType.isEmpty()) {
            this.builder.setHeader("Content-Type", this.contentType);
        }
        if (GwtRestClient.authorizationValue != null && GwtRestClient.authorizationValue.length() > 0) {
            this.builder.setHeader("Authorization", GwtRestClient.authorizationValue);
        }

        RestRequestCallback cb = new RestRequestCallback(callback);
        this.builder.sendRequest(this.requestBody, cb);

    } catch (Exception ex) {
        callback.onException(ex);
    } finally {
        clean();
    }

}

---

From source file:com.seanchenxi.gwt.wordpress.json.core.request.JRequestBuilderImpl.java

License:Apache License

@Override
public <M extends JModel> JRequest requestObject(JRequestURL url, AsyncCallback<M> callback) {
    RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, url.setPrefix(jServicePath));
    builder.setTimeoutMillis(timeout);//from  www. ja  v  a  2 s.  c o m
    try {
        Log.finest("call " + url.getMethodName() + " by: " + builder.getUrl());
        Request request = builder.sendRequest(null, new JAsyncCallback<M>(callback));
        return new JRequestImpl(request);
    } catch (RequestException e) {
        if (callback != null)
            callback.onFailure(e);
    }
    return null;
}

---

From source file:com.seanchenxi.resteasy.autobean.client.RESTRequest.java

License:Apache License

public RESTRequest(Method httpMethod, String uri, String resourceName) {
    this.resourceName = resourceName;
    this.builder = new RequestBuilder(httpMethod, uri);
    setContentType(REST.JSON_CONTENT_TYPE_UTF8);
    setAccepts(REST.ACCEPT_JSON);/* w  w  w. j a  v a2s.c om*/
}

---

From source file:com.seanchenxi.resteasy.autobean.test.client.GreetingServiceAsyncM.java

License:Apache License

void greetServerObject(String name, boolean ok, AsyncCallback<Greeting> callback) {
    RequestBuilder builder = new RequestBuilder(RequestBuilder.GET,
            "/rest/greetM/serverInfoObject/" + name + "-" + ok);
    builder.setHeader("Content-Type", "application/json; charset=utf-8");
    builder.setHeader("Accept", "application/json");
    builder.setCallback(new ResponseHandler(Greeting.class, callback));
    try {// w w  w  .  ja v a 2s.co m
        builder.send();
    } catch (RequestException ex) {
        InvocationException iex = new InvocationException(
                "Unable to initiate the asynchronous service invocation ( greetServerObject ) -- check the network connection",
                ex);
        callback.onFailure(iex);
    }
}

---

From source file:com.sensia.gwt.relaxNG.RNGParser.java

License:Open Source License

public void parse(final String url, final RNGParserCallback callback) {
    this.callback = callback;

    // if grammar has already been parsed
    grammar = grammarCache.get(url);/*from  w  w  w  . j av a 2 s.c om*/
    if (grammar != null) {
        callback.onParseDone(grammar);
        return;
    }

    // otherwise load included grammar and parse it asynchronously
    RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, URL.encode(url));
    try {

        builder.sendRequest(null, new RequestCallback() {
            public void onError(Request request, Throwable exception) {
                // Couldn't connect to server (could be timeout, SOP violation, etc.)
            }

            public void onResponseReceived(Request request, Response resp) {
                if (200 == resp.getStatusCode()) {
                    String text = resp.getText();
                    parse(url, text);
                } else {
                    // Handle the error.  Can get the status text from response.getStatusText()
                }
            }
        });
    } catch (RequestException e) {
        e.printStackTrace();
    }
}

---

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