Examples with JsUpdateHeader com.openmeap.protocol.json.JsUpdateHeader used on opensource projects

Example 1 with JsUpdateHeader

use of com.openmeap.protocol.json.JsUpdateHeader in project OpenMEAP by OpenMEAP.

the class JsApiCoreImpl method performUpdate.

/**
 * @param header JSON of the update header
 * @param statusCallBack a status change callback
 */
public void performUpdate(final String header, final String statusCallBack) {
    // needs to immediately return control to the calling javascript,
    // and pass back download status information via the callback function.
    JsUpdateHeader jsUpdateHeader = null;
    try {
        jsUpdateHeader = new JsUpdateHeader(header);
    } catch (JSONException e) {
        throw new GenericRuntimeException(e);
    }
    UpdateHeader reloadedHeader = jsUpdateHeader.getWrappedObject();
    if (reloadedHeader != null) {
        updateHandler.handleUpdate(reloadedHeader, new UpdateHandler.StatusChangeHandler() {

            public void onStatusChange(UpdateStatus update) {
                try {
                    JSONObject js = new JSONObject("{update:" + header + "}");
                    UpdateException error = update.getError();
                    js.put("bytesDownloaded", update.getBytesDownloaded());
                    js.put("complete", update.getComplete());
                    js.put("error", error != null ? new JsError(error.getUpdateResult().toString(), error.getMessage()).toJSONObject() : null);
                    webView.executeJavascriptFunction(statusCallBack, new String[] { js.toString() });
                } catch (JSONException e) {
                    throw new GenericRuntimeException(e);
                }
            }
        });
    }
}