Example usage for com.google.gwt.gears.client.httprequest HttpRequest setRequestHeader

Introduction

In this page you can find the example usage for com.google.gwt.gears.client.httprequest HttpRequest setRequestHeader.

Prototype

public native void setRequestHeader(String name, String value);

Source Link

Document

Adds the header to the set of HTTP headers to be sent.

Usage

From source file:com.google.gwt.gears.sample.uploaddemo.client.UploadDemo.java

License:Apache License

/**
 * This is the entry point method./*from   ww w  . j  a  va 2 s. c  o  m*/
 */
public void onModuleLoad() {
    root = RootPanel.get();

    final Button browse = new Button("Browse");

    final Button upload = new Button("Upload");
    upload.setEnabled(false);

    final TextBox selected = new TextBox();
    selected.setEnabled(false);

    final SimplePanel progressInner = new SimplePanel();
    progressInner.addStyleName("progressInner");

    final SimplePanel progressGauge = new SimplePanel();
    progressGauge.addStyleName("progressGauge");
    progressGauge.add(progressInner);

    final HTML result = new HTML();

    browse.addClickHandler(new ClickHandler() {
        public void onClick(ClickEvent event) {
            Desktop desktop = factory.createDesktop();
            desktop.openFiles(new OpenFilesHandler() {

                public void onOpenFiles(OpenFilesEvent event) {
                    File[] files = event.getFiles();
                    selected.setText(files[0].getName());
                    selectedFile = files[0].getBlob();
                    upload.setEnabled(true);
                }
            }, true);
        }
    });

    upload.addClickHandler(new ClickHandler() {
        public void onClick(ClickEvent event) {
            HttpRequest request = factory.createHttpRequest();
            request.open("POST", GWT.getModuleBaseURL() + "upload");
            request.setRequestHeader("X-Filename", selected.getText());

            request.setCallback(new RequestCallback() {
                public void onResponseReceived(HttpRequest request) {
                    String msg = request.getStatus() + " " + request.getResponseText();
                    if (request.getStatus() != 200) {
                        result.setHTML("<p style=\"color:red\">" + msg + "</p>");
                    } else {
                        result.setHTML("<p style=\"color:green\">" + msg + "</p>");
                    }
                }
            });

            request.getUpload().setProgressHandler(new ProgressHandler() {
                public void onProgress(ProgressEvent event) {
                    double pcnt = ((double) event.getLoaded() / event.getTotal());
                    progressInner.setWidth((int) Math.floor(pcnt * 100) + "%");
                }
            });
            request.send(selectedFile);
        }
    });

    HorizontalPanel inputPanel = new HorizontalPanel();
    inputPanel.add(selected);
    inputPanel.add(browse);
    inputPanel.add(upload);

    root.add(inputPanel);
    root.add(new HTML("Progress:"));
    root.add(progressGauge);
    root.add(result);
}

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From source file:org.gss_project.gss.web.client.FileUploadGearsDialog.java

License:Open Source License

/**
 * Perform the HTTP request to upload the specified file.
 *///from  ww  w  .java 2  s. c  o m
protected void doSend(final List<File> filesRemaining) {
    final GSS app = GSS.get();
    HttpRequest request = factory.createHttpRequest();
    requests.add(request);
    String method = "PUT";

    String path;
    final String filename = getFilename(filesRemaining.get(0).getName());
    path = folder.getUri();
    if (!path.endsWith("/"))
        path = path + "/";
    path = path + encode(filename);

    String token = app.getToken();
    String resource = path.substring(app.getApiPath().length() - 1, path.length());
    String date = RestCommand.getDate();
    String sig = RestCommand.calculateSig(method, date, resource, RestCommand.base64decode(token));
    request.open(method, path);
    request.setRequestHeader("X-GSS-Date", date);
    request.setRequestHeader("Authorization", app.getCurrentUserResource().getUsername() + " " + sig);
    request.setRequestHeader("Accept", "application/json; charset=utf-8");
    request.setCallback(new RequestCallback() {
        @Override
        public void onResponseReceived(HttpRequest req) {
            int state = req.getReadyState();
            if (state != 4)
                return;
            switch (req.getStatus()) {
            case 201: // Created falls through to updated.
            case 204:
                filesRemaining.remove(0);
                if (filesRemaining.isEmpty()) {
                    finish();
                    break;
                }
                doSend(filesRemaining);
                break;
            case 403:
                SessionExpiredDialog dlg = new SessionExpiredDialog();
                dlg.center();
                break;
            case 405:
                app.displayError("You don't have permission to " + "upload file " + filename);
                break;
            case 409:
                app.displayError("A folder with the name " + filename + " already exists at this level");
                break;
            case 413:
                app.displayError("There is not enough free space " + "available for uploading " + filename);
                break;
            default:
                app.displayError("Error uploading file " + filename + ": " + req.getStatus());
            }
        }
    });
    request.getUpload().setProgressHandler(new ProgressHandler() {
        @Override
        public void onProgress(ProgressEvent event) {
            double pcnt = (double) event.getLoaded() / event.getTotal();
            progressBars.get(0).setProgress((int) Math.floor(pcnt * 100));
            if (pcnt * 100 == 100)
                progressBars.remove(0);
        }
    });
    request.send(filesRemaining.get(0).getBlob());
}

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From source file:org.gss_project.gss.web.client.FileUploadGearsIEDialog.java

License:Open Source License

/**
 * Perform the HTTP request to upload the specified file.
 */// w w  w.  ja  v a  2 s.c  o m
@Override
protected void doSend(final List<File> filesRemaining) {
    final GSS app = GSS.get();
    HttpRequest request = factory.createHttpRequest();
    requests.add(request);
    String method = "POST";

    String path;
    final String filename = getFilename(filesRemaining.get(0).getName());
    path = folder.getUri();
    if (!path.endsWith("/"))
        path = path + "/";
    path = path + encode(filename);

    String token = app.getToken();
    String resource = path.substring(app.getApiPath().length() - 1, path.length());
    String date = RestCommand.getDate();
    String sig = RestCommand.calculateSig(method, date, resource, RestCommand.base64decode(token));
    request.open(method, path);
    request.setRequestHeader("X-GSS-Date", date);
    request.setRequestHeader("Authorization", app.getCurrentUserResource().getUsername() + " " + sig);
    request.setRequestHeader("Accept", "application/json; charset=utf-8");
    request.setCallback(new RequestCallback() {
        @Override
        public void onResponseReceived(HttpRequest req) {
            // XXX: No error checking, since IE throws an Internal Error
            // when accessing req.getStatus().
            filesRemaining.remove(0);
            if (filesRemaining.isEmpty()) {
                finish();
            }
            doSend(filesRemaining);
        }
    });
    request.getUpload().setProgressHandler(new ProgressHandler() {
        @Override
        public void onProgress(ProgressEvent event) {
            double pcnt = (double) event.getLoaded() / event.getTotal();
            progressBars.get(0).setProgress((int) Math.floor(pcnt * 100));
            if (pcnt * 100 == 100)
                progressBars.remove(0);
        }
    });
    request.send(filesRemaining.get(0).getBlob());
}

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