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

Introduction

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

Prototype

public native int getReadyState();

Source Link

Document

Returns the state of the request.

Usage

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  w  w  w.ja va 2s.  c om*/
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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