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.google.gwt.sample.client.mystockwatcherEntryPoint.java

/**
 * Generate random stock prices.//from w  w w.  j av a  2  s.  c  o  m
 */
private void refreshWatchList() {
    if (stocks.size() == 0) {
        return;
    }

    String url = JSON_URL;

    // Append watch list stock symbols to query URL.
    Iterator iter = stocks.iterator();
    while (iter.hasNext()) {
        url += iter.next();
        if (iter.hasNext()) {
            url += "+";
        }
    }

    url = URL.encode(url);

    // Send request to server and catch any errors.
    RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, url);

    try {
        Request request = builder.sendRequest(null, new RequestCallback() {

            @Override
            public void onError(Request request, Throwable exception) {
                displayError("Couldn't retrieve JSON");
            }

            public void onResponseReceived(Request request, Response response) {
                if (200 == response.getStatusCode()) {
                    updateTable(asArrayOfStockData(response.getText()));
                } else {
                    displayError("Couldn't retrieve JSON (" + response.getStatusText() + ")");
                }
            }
        });
    } catch (RequestException e) {
        displayError("Couldn't retrieve JSON");
    }
}

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From source file:com.google.gwt.sample.healthyeatingapp.client.FacebookGraph.java

private void QueryGraph(String id, Method method, String params,
        final Callback<JSONObject, Throwable> callback) {
    final String requestData = "access_token=" + token + (params != null ? "&" + params : "");
    RequestBuilder builder;//from  w  w  w  .  j av  a 2 s.co m
    if (method == RequestBuilder.POST) {
        builder = new RequestBuilder(method, "https://graph.facebook.com/" + id);
        builder.setHeader("Content-Type", "application/x-www-form-urlencoded");
    } else if (method == RequestBuilder.GET) {
        builder = new RequestBuilder(method, "https://graph.facebook.com/" + id + "?" + requestData);
    } else {
        callback.onFailure(new IOException("doGraph only supports GET and POST requests"));
        return;
    }
    try {
        builder.sendRequest(requestData, new RequestCallback() {
            public void onError(Request request, Throwable exception) {
                callback.onFailure(exception);
            }

            public void onResponseReceived(Request request, Response response) {
                if (Response.SC_OK == response.getStatusCode()) {
                    callback.onSuccess(JSONParser.parseStrict(response.getText()).isObject());
                } else if (Response.SC_BAD_REQUEST == response.getStatusCode()) {
                    callback.onFailure(new IOException("Error: " + response.getText()));
                } else {
                    callback.onFailure(
                            new IOException("Couldn't retrieve JSON (" + response.getStatusText() + ")"));
                }
            }

        });
    } catch (RequestException e) {
        callback.onFailure(e);
    }
}

---

From source file:com.google.gwt.sample.showcase.client.ContentWidget.java

License:Apache License

/**
 * Send a request for source code.//from  ww  w .  java  2  s  .c o m
 * 
 * @param callback the {@link RequestCallback} to send
 * @param url the URL to target
 */
private void sendSourceRequest(RequestCallback callback, String url) {
    RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, GWT.getModuleBaseURL() + url);
    builder.setCallback(callback);
    try {
        builder.send();
    } catch (RequestException e) {
        callback.onError(null, e);
    }
}

---

From source file:com.google.gwt.sample.simplexml.client.SimpleXML.java

License:Apache License

public void onModuleLoad() {
    RequestBuilder requestBuilder = new RequestBuilder(RequestBuilder.GET, "customerRecord.xml");

    try {//from   w  ww  . java 2  s.  co m
        requestBuilder.sendRequest(null, new RequestCallback() {
            public void onError(Request request, Throwable exception) {
                requestFailed(exception);
            }

            public void onResponseReceived(Request request, Response response) {
                renderXML(response.getText());
            }
        });
    } catch (RequestException ex) {
        requestFailed(ex);
    }
}

---

From source file:com.google.gwt.sample.stockwatcher.client.PetrolTracker.java

/**
 * Add stock to FlexTable. Executed when the user clicks the addStockButton or
 * presses enter in the newSymbolTextBox.
         /*from   w  ww  .j a  va2s.c  o m*/
private void addFillups() {
  final String symbol = newSymbolTextBox.getText().toUpperCase().trim();
  newSymbolTextBox.setFocus(true);
        
  // Stock code must be between 1 and 10 chars that are numbers, letters, or dots.
  if (!symbol.matches("^[0-9a-zA-Z\\.]{1,10}$")) {
    Window.alert("'" + symbol + "' is not a valid symbol.");
    newSymbolTextBox.selectAll();
    return;
  }
        
  newSymbolTextBox.setText("");
        
  // Don't add the stock if it's already in the table.
  if (stocks.contains(symbol))
    return;
        
  // Add the stock to the table.
  int row = fillupFlexTable.getRowCount();
  stocks.add(symbol);
  fillupFlexTable.setText(row, 0, symbol);
  fillupFlexTable.setWidget(row, 2, new Label());
  fillupFlexTable.getCellFormatter().addStyleName(row, 1, "watchListNumericColumn");
  fillupFlexTable.getCellFormatter().addStyleName(row, 2, "watchListNumericColumn");
  fillupFlexTable.getCellFormatter().addStyleName(row, 3, "watchListRemoveColumn");
        
  // Add a button to remove this stock from the table.
  Button removeStockButton = new Button("x");
  removeStockButton.addStyleDependentName("remove");
  removeStockButton.addClickHandler(new ClickHandler() {
    public void onClick(ClickEvent event) {
int removedIndex = stocks.indexOf(symbol);
stocks.remove(removedIndex);
fillupFlexTable.removeRow(removedIndex + 1);
    }
  });
  fillupFlexTable.setWidget(row, 3, removeStockButton);
        
  // Get the stock price.
  refreshWatchList();
        
}
*/
private void refreshFillups() {
    String url = JSON_URL;

    final String encodedUrl = URL.encode(url);
    RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, encodedUrl);
    try {
        @SuppressWarnings("unused")
        Request request = builder.sendRequest(null, new RequestCallback() {
            public void onError(Request request, Throwable exception) {
                displayError("Couldn't retrieve JSON on url:" + encodedUrl);
            }

            public void onResponseReceived(Request request, Response response) {
                if (200 == response.getStatusCode()) {
                    String jsonString = response.getText();
                    updateTable(asArrayOfFillupData(jsonString));
                } else {
                    displayError("Couldn't retrieve JSON (" + response.getStatusText() + ")");
                }
            }
        });
    } catch (RequestException e) {
        displayError("Couldn't retrieve JSON");
    }

}

---

From source file:com.google.gwt.sample.stockwatcher.client.ui.StockWatcherViewImpl.java

/**
 * Generate random stock prices./*from  w  w w  .j  a  v  a  2 s . c  o  m*/
 */
private void refreshWatchList() {
    if (stocks.size() == 0) {
        return;
    }
    String url = JSON_URL;

    // Append watch list stock symbols to query URL.
    Iterator iter = stocks.iterator();
    while (iter.hasNext()) {
        url += iter.next();
        if (iter.hasNext()) {
            url += "+";
        }
    }

    url = URL.encode(url);

    // Send request to server and catch any errors.
    RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, url);

    try {
        Request request = builder.sendRequest(null, new RequestCallback() {
            public void onError(Request request, Throwable exception) {
                displayError("Couldn't retrieve JSON");
            }

            public void onResponseReceived(Request request, Response response) {
                if (200 == response.getStatusCode()) {
                    updateTable(asArrayOfStockData(response.getText()));
                } else {
                    displayError("Couldn't retrieve JSON (" + response.getStatusText() + ")");
                }
            }
        });
    } catch (RequestException e) {
        displayError("Couldn't retrieve JSON");
    }
}

---

From source file:com.google.gwt.sample.stockwatcher_json.client.StockWatcherJSON.java

private void randomizeNumber() {
    RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, JSON_RANDOMIZE);

    try {//w ww  .j  a v  a2s. c o m
        builder.sendRequest(null, new RequestCallback() {
            public void onError(Request request, Throwable exception) {
                displayError("Couldn't retrieve JSON : " + exception.getMessage());
            }

            public void onResponseReceived(Request request, Response response) {
                if (200 == response.getStatusCode()) {
                    StockWatcherJSON.this.randomizeLabel.setText(response.getText());
                    StockWatcherJSON.this.randomizeLabel.setVisible(true);
                } else {
                    displayError("Couldn't retrieve JSON (" + response.getStatusText() + ")");
                    StockWatcherJSON.this.randomizeLabel.setVisible(false);
                }
            }
        });
    } catch (RequestException e) {
        displayError("Couldn't retrieve JSON : " + e.getMessage());
        StockWatcherJSON.this.randomizeLabel.setVisible(false);
    }
}

---

From source file:com.google.gwt.sample.stockwatcher_json.client.StockWatcherJSON.java

private void refreshWatchList() {
    if (stocks.size() == 0) {
        return;/*  w  ww  .  ja v a2s  .  c o  m*/
    }

    String url = JSON_STOCK_PRICES_URL;

    // Append watch list stock symbols to query URL.
    Iterator<String> iter = stocks.iterator();
    while (iter.hasNext()) {
        url += iter.next();
        if (iter.hasNext()) {
            url += "+";
        }
    }

    url = URL.encode(url);
    GWT.log("url = " + url);
    // Send request to server and catch any errors.
    RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, url);

    try {
        builder.sendRequest(null, new RequestCallback() {
            public void onError(Request request, Throwable exception) {
                displayError("Couldn't retrieve JSON : " + exception.getMessage());
            }

            public void onResponseReceived(Request request, Response response) {
                if (200 == response.getStatusCode()) {
                    updateTable(asArrayOfStockData(response.getText()));
                } else {
                    displayError("Couldn't retrieve JSON (" + response.getStatusText() + ")");
                }
            }
        });
    } catch (RequestException e) {
        displayError("Couldn't retrieve JSON : " + e.getMessage());
    }
}

---

From source file:com.google.gwt.sample.userwatcher.client.PageWithoutPhoto.java

private void refreshWatchList() {

    if (stocks.size() == 0) {
        return;// w  ww .jav  a 2  s .  c  om
    }

    String url = JSON_URL;

    // Append watch list stock symbols to query URL.
    Iterator<String> iter = stocks.iterator();
    while (iter.hasNext()) {
        url += iter.next();
        if (iter.hasNext()) {
            url += "+";
        }
    }

    url = URL.encode(url);

    // Send request to server and catch any errors.
    RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, url);

    try {
        Request request = builder.sendRequest(null, new RequestCallback() {
            public void onError(Request request, Throwable exception) {
                displayError("Couldn't retrieve JSON");
            }

            public void onResponseReceived(Request request, Response response) {
                if (200 == response.getStatusCode()) {
                    updateTable(JsonUtils.<JsArray<StockData>>safeEval(response.getText()));
                } else {
                    displayError("Couldn't retrieve JSON (" + response.getStatusText() + ")");
                }
            }
        });
    } catch (RequestException e) {
        displayError("Couldn't retrieve JSON");
    }

}

---

From source file:com.google.gwt.sample.userwatcher.client.UploadImage.java

private void send() {
    cp.showLoading(true);//from   w ww . j a v  a2  s .  c o m

    String boundary = createBoundary();

    String requestData = getRequestData(boundary);

    //System.out.println(requestData);
    //url = "/TestOut/";

    //Window.alert("requestData=" + requestData);
    RootPanel.get().add(new HTML("<br>requestData=" + requestData));

    RequestBuilder builder = new RequestBuilder(RequestBuilder.POST, url);
    builder.setHeader("Content-Type", "multipart/form-data; boundary=" + boundary);
    builder.setHeader("Content-Length", Long.toString(requestData.length()));
    try {
        builder.sendRequest(requestData, new RequestCallback() {
            public void onResponseReceived(Request request, Response response) {
                cp.showLoading(false);
                if (response.getStatusCode() == 200) {
                    processResponse(response);
                }
            }

            public void onError(Request request, Throwable exception) {
                fireChange(EventManager.FILE_DONEUPLOADING);
                cp.showLoading(false);
                exception.printStackTrace();
            }
        });
    } catch (RequestException e) {
        cp.showLoading(false);
        e.printStackTrace();
    }
}

---

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