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

List of usage examples for com.google.gwt.http.client RequestBuilder sendRequest

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Introduction

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

Prototype

public Request sendRequest(String requestData, RequestCallback callback) throws RequestException

Source Link

Document

Sends an HTTP request based on the current builder configuration with the specified data and callback.

Usage

From source file:com.kk_electronic.kkportal.core.rpc.Comet.java

License:Open Source License

private void poll() {
    if (!status.equals(WebSocketStatus.OPEN))
        return;/*from  www  .j  a  v a 2 s  .  com*/
    RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, url + rxUrl);
    try {
        builder.sendRequest(null, rxCallback);
    } catch (RequestException e) {
        GWT.log("SOCKET-Failed to get responses to portalserver", e);
    }
}

From source file:com.kk_electronic.kkportal.core.rpc.Comet.java

License:Open Source License

/**
 * The connect call POST an empty request to that and expects to receive a HTTP 201 Created
 * with the url of where it can receive server frames.
 * @param url when opening a connection this url is used
 * @param subprotocol not used yet, mostly here for compatibility with websocket protocol
 */// w  w  w .  j a  v  a2  s.  c o m
@Override
public void connect(String url, String subprotocol) {
    if (status.equals(WebSocketStatus.CLOSED)) {
        this.url = url;
        RequestBuilder builder = new RequestBuilder(RequestBuilder.POST, url);
        try {
            /*
             * for now we post not an real empty request but the json variant.
             * TODO: change the server so it can accept an empty body
             */
            builder.sendRequest("[]", connectCallback);
        } catch (RequestException e) {
            GWT.log("SOCKET-Failed to connect to portalserver", e);
        }
        this.status = WebSocketStatus.CONNECTING;
    }
}

From source file:com.kk_electronic.kkportal.core.rpc.Comet.java

License:Open Source License

/**
 * send a frame to the server. should not be called if {@link Comet#isTxBusy()} returns
 * true, since it this creates too many connections to the server.
 *//*w w w  .  j  av a 2 s  .co m*/
@Override
public void send(String s) {
    if (!status.equals(WebSocketStatus.OPEN))
        return;
    RequestBuilder builder = new RequestBuilder(RequestBuilder.POST, url + rxUrl);
    try {
        builder.sendRequest(s, txCallback);
    } catch (RequestException e) {
        GWT.log("SOCKET-Failed to send requests to portalserver", e);
    }
    GWT.log("SOCKET-portalserver sending @" + new Date().getTime() + " : " + s);
    FrameSentEvent.fire(this);
}

From source file:com.kk_electronic.kkportal.examples.rpc.PHPDispatcher.java

License:Open Source License

@Override
public <T> void execute(final com.kk_electronic.kkportal.core.rpc.Request<T> orequest) {
    String url = "php/dispatch.php?i=" + orequest.getServerinterface().getName() + "&m=" + orequest.getMethod();
    RequestBuilder builder = new RequestBuilder(RequestBuilder.POST, url);
    StringBuilder sb = new StringBuilder();
    try {/*  ww  w.ja va 2s.c o m*/
        encoder.encode(orequest.getParams(), sb);
    } catch (UnableToSerialize e) {
        orequest.onFailure(e);
    }
    try {
        builder.sendRequest(sb.toString(), new RequestCallback() {

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

            @Override
            public void onResponseReceived(Request request, Response response) {
                JSONValue result;
                try {
                    result = encoder.decode(response.getText());
                } catch (UnableToDeserialize e) {
                    orequest.onFailure(e);
                    return;
                }
                T decodedResult = null;
                try {
                    decodedResult = encoder.validate(result, decodedResult, orequest.getReturnValueType());
                } catch (UnableToDeserialize e) {
                    orequest.onFailure(e);
                    return;
                }
                orequest.onSuccess(decodedResult);
            }
        });
    } catch (RequestException e) {
        orequest.onFailure(e);
    }
}

From source file:com.kludgenics.dcpu16.compiler.client.CompileService.java

License:Apache License

public static void compile(String compiler, String filename, String body, RequestCallback callback)
        throws RequestException {
    JSONObject requestData = new JSONObject();
    requestData.put("filename", new JSONString(filename));
    requestData.put("contents", new JSONString(body));

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

    builder.sendRequest(requestData.toString(), callback);

}

From source file:com.lorepo.icf.utils.XMLLoader.java

License:Open Source License

public void load(String url, ILoadListener l) {

    final String resolvedURL;
    listener = l;//from  w  w  w .  ja  v  a 2  s .  c  o  m

    if (url.contains("://") || url.startsWith("/")) {
        resolvedURL = url;
    } else {
        resolvedURL = GWT.getHostPageBaseURL() + url;
    }

    RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, resolvedURL);
    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) {

                        Document dom = XMLParser.parse(response.getText());
                        initContentFromDOM(dom, resolvedURL);
                        listener.onFinishedLoading(model);

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

}

From source file:com.lushprojects.circuitjs1.client.circuitjs1.java

License:Open Source License

void loadLocale() {
    String url;/*from  w  ww. j  a  va 2  s  . c o m*/
    String lang = language();
    GWT.log("got language " + lang);
    if (lang.startsWith("en")) {
        // no need to load locale file for English
        loadSimulator();
        return;
    }
    if (lang.startsWith("de-"))
        lang = "de";
    url = GWT.getModuleBaseURL() + "locale_" + lang + ".txt";
    RequestBuilder requestBuilder = new RequestBuilder(RequestBuilder.GET, url);
    try {
        requestBuilder.sendRequest(null, new RequestCallback() {
            public void onError(Request request, Throwable exception) {
                GWT.log("File Error Response", exception);
            }

            public void onResponseReceived(Request request, Response response) {
                // processing goes here
                if (response.getStatusCode() == Response.SC_OK) {
                    String text = response.getText();
                    processLocale(text);
                    // end or processing
                } else {
                    GWT.log("Bad file server response:" + response.getStatusText());
                    loadSimulator();
                }
            }
        });
    } catch (RequestException e) {
        GWT.log("failed file reading", e);
    }

}

From source file:com.lushprojects.circuitjs1.client.CirSim.java

License:Open Source License

void getSetupList(final boolean openDefault) {

    String url;/*  ww w .ja  v  a  2s.c om*/
    url = GWT.getModuleBaseURL() + "setuplist.txt" + "?v=" + random.nextInt();
    RequestBuilder requestBuilder = new RequestBuilder(RequestBuilder.GET, url);
    try {
        requestBuilder.sendRequest(null, new RequestCallback() {
            public void onError(Request request, Throwable exception) {
                GWT.log("File Error Response", exception);
            }

            public void onResponseReceived(Request request, Response response) {
                // processing goes here
                if (response.getStatusCode() == Response.SC_OK) {
                    String text = response.getText();
                    processSetupList(text.getBytes(), text.length(), openDefault);
                    // end or processing
                } else
                    GWT.log("Bad file server response:" + response.getStatusText());
            }
        });
    } catch (RequestException e) {
        GWT.log("failed file reading", e);
    }
}

From source file:com.lushprojects.circuitjs1.client.CirSim.java

License:Open Source License

void loadFileFromURL(String url, final boolean centre) {
    RequestBuilder requestBuilder = new RequestBuilder(RequestBuilder.GET, url);
    try {//from  w  w  w .  ja va 2  s  .  c o  m
        requestBuilder.sendRequest(null, new RequestCallback() {
            public void onError(Request request, Throwable exception) {
                GWT.log("File Error Response", exception);
            }

            public void onResponseReceived(Request request, Response response) {
                if (response.getStatusCode() == Response.SC_OK) {
                    String text = response.getText();
                    readSetup(text.getBytes(), text.length(), false, centre);
                } else
                    GWT.log("Bad file server response:" + response.getStatusText());
            }
        });
    } catch (RequestException e) {
        GWT.log("failed file reading", e);
    }

}

From source file:com.lushprojects.circuitjs1.client.element.CirSim.java

License:Open Source License

public void getSetupList(final boolean openDefault) {

    String url;//from  w ww .  ja v  a2 s .co  m
    url = GWT.getModuleBaseURL() + "setuplist.txt" + "?v=" + random.nextInt();
    RequestBuilder requestBuilder = new RequestBuilder(RequestBuilder.GET, url);
    try {
        requestBuilder.sendRequest(null, new RequestCallback() {
            public void onError(Request request, Throwable exception) {
                GWT.log("File Error Response", exception);
            }

            public void onResponseReceived(Request request, Response response) {
                // processing goes here
                if (response.getStatusCode() == Response.SC_OK) {
                    String text = response.getText();
                    gui.processSetupList(text.getBytes(), text.length(), openDefault);
                    // end or processing
                } else
                    GWT.log("Bad file server response:" + response.getStatusText());
            }
        });
    } catch (RequestException e) {
        GWT.log("failed file reading", e);
    }
}