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Handle multiple user at the same time with TelegramLongPollingBot and thread

I'm building my first telegram bot. It send one message every 5 seconds to the user.
While it sends it to one user it cannot receive update from other chat.
public void foo(msg, Update update){
msg.setChatId(update.getMessage().getChatId());
for (int i = 1; i < links.size(); i++){
msg.setText(links.get(i));
execute(msg);
}
Thread.sleep(wait * 1000);
}
How can I use Thread? I've tried creating multiple thread here
public static void bot(){
ApiContextInitializer.init();
TelegramBotsApi telegramBotsApi = new TelegramBotsApi();
try {
telegramBotsApi.registerBot(new myBot());
} catch (TelegramApiException e) {
e.printStackTrace();
}
But he tries to create multiple bots and fails. Same if this is the runnable function:
How can I do it? I'm Stuck. I cannot create this function in different thread
public void onUpdateReceived(Update update) {
leggi(new SendMessage(), update.getMessage().getText(), update);
//.setChatId(update.getMessage().getChatId())
public void leggi(SendMessage msg, String command, Update update){
if(command.equals("test") {
foo( msg, update);
}
Here the full code... https://github.com/siamoInPochi/Ilsottomarinobot/tree/prova/src/main/java/Ilsottomarinobot

If you spawn a thread for every bot user who wants to receive messages, you will quickly be out of computer's resources in case of high number of users. So I think threads is not a good idea for your task.
In my mind more natural approach is the following:
Find a library with an HTTP server.
Switch from GetUpdates to webhooks.
Schedule send-message-to-user-every-5-seconds tasks to server's event loop.
Send messages every 5 seconds asynchronously.

You can make it with this library https://github.com/pengrad/java-telegram-bot-api
<dependency>
<groupId>com.github.pengrad</groupId>
<artifactId>java-telegram-bot-api</artifactId>
<version>4.2.0</version>
</dependency>
Subscribe to new updates via bot.setUpdatesListener
Send messages via bot.execute(new SendMessage(chatId, link), callback)
Full working example:
static String[] links = {"1", "2", "3"};
static Callback emptyCallback = new Callback() {
#Override
public void onResponse(BaseRequest request, BaseResponse response) {
}
#Override
public void onFailure(BaseRequest request, IOException e) {
e.printStackTrace();
}
};
static void foo(TelegramBot bot, Update update) {
Message message = update.message();
if (message == null) return;
Long chatId = message.chat().id();
for (String link : links) {
bot.execute(new SendMessage(chatId, link), emptyCallback);
}
}
public static void main(String[] args) {
TelegramBot bot = new TelegramBot(TOKEN);
bot.setUpdatesListener(updates -> {
for (Update update : updates) {
foo(bot, update);
}
return UpdatesListener.CONFIRMED_UPDATES_ALL;
});
}

Refresh panel in Wicket with BootstrapDownloadLink

My problem is simple but I have no clue how to solve it. I have a feedbackPanel and I want to show an error message if the BootstrapDownloadLink fails. With a submit I could easily do:
protected void onSubmit(AjaxRequestTarget target) {
...
error("File_not_found"); //Wicket will print this on the feedback panel
target.add(getModalPanel().getFeedbackPanel()); //But i need to refresh it first
}
But the button is inside a panel which I fill with a populateItem and is the only way I know to insert Bootstrap Styles to it. The code of the button:
BootstrapDownloadLink downloadDocument = new BootstrapDownloadLink(IDITEMREPEATER, file) {
#Override
public void onClick() {
File file = (File)getModelObject();
if(file.exists()) {
IResourceStream resourceStream = new FileResourceStream(new org.apache.wicket.util.file.File(file));
getRequestCycle().scheduleRequestHandlerAfterCurrent(new ResourceStreamRequestHandler(resourceStream, file.getName()));
} else {
error(getString("error_fichero_no_existe"));
/// ???? need to refresh-> getModalPanel().getFeedbackPanel()
}
}
};
downloadDocument.setIconType(GlyphIconType.clouddownload);
downloadDocument.add(new AttributeModifier("title", getString("documentos.descargar")));
downloadDocument.add(new AttributeModifier("class", " btn btn-info negrita btn-xs center-block"));
downloadDocument.setVisible(Boolean.TRUE);
list.add(downloadDocument);

You could create or extend from an AjaxDownloadLink, for example like here.
The main idea is to have an AjaxBehavior that does the download, and you get a public void onClick(AjaxRequestTarget target) in which you can add the FeedbackPanel
downloadBehavior = new AbstractAjaxBehavior()
{
private static final long serialVersionUID = 3472918725573624819L;
#Override
public void onRequest()
{
[...]
ResourceStreamRequestHandler handler = new ResourceStreamRequestHandler(
AjaxDownloadLink.this.getModelObject(), name);
handler.setContentDisposition(ContentDisposition.ATTACHMENT);
getComponent().getRequestCycle().scheduleRequestHandlerAfterCurrent(handler);
}
};
And use that behavior in the onclick:
#Override
public void onClick(AjaxRequestTarget aTarget)
{
String url = downloadBehavior.getCallbackUrl().toString();
if (addAntiCache) {
url = url + (url.contains("?") ? "&" : "?");
url = url + "antiCache=" + System.currentTimeMillis();
}
// the timeout is needed to let Wicket release the channel
aTarget.appendJavaScript("setTimeout(\"window.location.href='" + url + "'\", 100);");
}

You can use target.addChildren(getPage(), IFeedback.class). This will add all instances of IFeedback interface in the page to the AjaxRequestTarget.
You can also use FeedbackPanel.class instead of the interface.
Or use getPage().visit(new IVisitor() {...}) to find a specific feedback panel if you don't want to add others which are not related.

code name one error:411 length required

Hi guys I have a problem in codename one api sms
when I push the button he show me this error (error:411 length required)
btsms.addActionListener(new ActionListener() {
#Override
public void actionPerformed(ActionEvent evt) {
// String myURL = "https://rest.nexmo.com/sms/json?api_key=*****&api_secret=*****&to=*****" + "&from=*****&text=*****";
String myURL = "https://rest.nexmo.com/sms/json?api_key=d5b95eee&api_secret=93a8c398b48c63bf&to=21625308299&from=NEXMO&text=reservation_annulée";
ConnectionRequest cntRqst = new ConnectionRequest() {
#Override
protected void readResponse(InputStream in) throws IOException {
}
#Override
protected void postResponse() {
Dialog.show("SMS", "sms successfully sent", "OK", null);
}
};
cntRqst.setUrl(myURL);
NetworkManager.getInstance().addToQueue(cntRqst);
}
});
Can you help me please thanks :)

Before I begin you do know there is a Twilio SMS callback library in Codename One right?
You are sending a post call with a URL that's constructed for GET. A minimal fix would be:
cntRqst.setPost(false);
However, I would personally write it as:
ConnectionRequest cntRqst = new ConnectionRequest("https://rest.nexmo.com/sms/json", false) {
// ...
};
cntRqst.addArgument("api_key", API_KEY);
cntRqst.addArgument("api_secret", API_SECRET);
cntRqst.addArgument("to", "21625308299");
cntRqst.addArgument("from", "NEXMO");
cntRqst.addArgument("text", "reservation_annulée");
The advantage of this is the text is implicitly encoded and you can dynamically switch between GET/POST easily.
There is also the newer REST API (assuming result is JSON):
Response<Map> response = Rest.get("https://rest.nexmo.com/sms/json").
queryParam("api_key", API_KEY).
queryParam("api_secret", API_SECRET).
queryParam("to", "21625308299").
queryParam("from", "NEXMO").
queryParam("text", "reservation_annulée").
getAsJsonMap();

How to reset a variable in Flume's custom sink class for every batch

I have a flume process that reads data from file on a spooldir & loads the data into MySQL database. There will be multiple types of files that can be processed by the same flume process.
I have created a custom sink java class (extending AbstractSink), that updates a local variable (sInterfaceType) after an initial/first read to decide the data format in the file.
I have to reset it once the file processing completes, so that it has to start with identifying the next batch/interface file.
I tried to do in stop() but it doesn't help. Did anybody do this?
My sink class looks like this:
public class MyFlumeSink2 extends AbstractSink implements Configurable {
private String sInterfaceType; //tells file format of current load
public MyFlumeSink2() {
//my initialization of variables
}
public void configure(Context context) {
//read context variables
}
public void start() {
//create db connection
}
#Override
public void stop() {
//destroy connection
sInterfaceType = ""; //This doesn't help me
super.stop();
}
public Status process() throws EventDeliveryException {
Channel channel = getChannel();
Transaction transaction = channel.getTransaction();
if((sInterfaceType=="" || sInterfaceType==null))
{
//Read first line & set sInterfaceType
}else
//Insert data in MySQL
transaction.commit();
}
}

We have to manually decide which event it is, there is no specialized method called for every new file.
I revised my code to read the event line & set InterfaceType based on first element. My code looks like this:
public Status process() throws EventDeliveryException {
//....other code...
sEvtBody = new String(event.getBody());
sFields = sEvtBody.split(",");
//check first field to know record type
enumRec = RecordType.valueOf( checkRecordType(sFields[0].toUpperCase()) );
switch(enumRec)
{
case CUST_ID:
sInterfaceType = "T_CUST";
bHeader = true;
break;
case TXN_ID:
sInterfaceType = "T_CUST_TXNS";
bHeader = true;
break;
default:
bHeader = false;
}
//insert if not header
if(!bHeader)
{
if(sInterfaceType == "T_CUST")
{
if(sFields.length == 14)
this.bInsertStatus = daoClass.insertHeader(sFields);
else
throw new Exception("INCORRECT_COLUMN_COUNT");
}else if(sInterfaceType == "T_CUST_TXNS")
{
if(sFields.length == 10)
this.bInsertStatus = daoClass.insertData(sFields);
else
throw new Exception("INCORRECT_COLUMN_COUNT");
}
//if(!bInsertStatus)
// logTransaction(sFields);
}
//....Other code....

How to hook into the internal Eclipse browser?

For my eclipse plugin I want to track every URL that is opened with the internal (and if possible also external) Eclipse browser.
So far I use
org.eclipse.swt.browser.Browser;
and
addLocationListener(...)
But I would prefer that it works also for the internal Eclipse browser. How can I achieve that?

One possible solution for the Eclipse Internal Browser would be to create an eclipse plugin that registers an IStartup extension. In your earlyStartup() method you would register an IPartListener on the workbenchPage. Then when the internal browser part is created, you will receive a callback with a reference to the WebBrowserEditor (or WebBrowserView). Since there is no direct API you will have to hack a bit and use reflection to grab the internal SWT Browser instance. Once you have that, you can add your location listener.
Sometimes during early startup there is no active Workbench window yet so you have to loop through all existing workbench windows (usually just one) and each of their workbench pages to add part listeners also.
Here is the snippet of code for the earlyStartup() routine. Note that I have omitted any cleanup of listeners during dispose for windows/pages so that still needs to be done.
//Add this code to an IStartup.earlyStartup() method
final IPartListener partListener = new IPartListener() {
#Override
public void partOpened(IWorkbenchPart part) {
if (part instanceof WebBrowserEditor)
{
WebBrowserEditor editor = (WebBrowserEditor) part;
try {
Field webBrowser = editor.getClass().getDeclaredField("webBrowser");
webBrowser.setAccessible(true);
BrowserViewer viewer = (BrowserViewer)webBrowser.get(editor);
Field browser = viewer.getClass().getDeclaredField("browser");
browser.setAccessible(true);
Browser swtBrowser = (Browser) browser.get(viewer);
swtBrowser.addLocationListener(new LocationListener() {
#Override
public void changed(LocationEvent event) {
System.out.println(event.location);
}
});
} catch (Exception e) {
}
}
else if (part instanceof WebBrowserView)
{
WebBrowserView view = (WebBrowserView) part;
try {
Field webBrowser = editor.getClass().getDeclaredField("viewer");
webBrowser.setAccessible(true);
BrowserViewer viewer = (BrowserViewer)webBrowser.get(view);
Field browser = viewer.getClass().getDeclaredField("browser");
browser.setAccessible(true);
Browser swtBrowser = (Browser) browser.get(viewer);
swtBrowser.addLocationListener(new LocationListener() {
#Override
public void changed(LocationEvent event) {
System.out.println(event.location);
}
});
} catch (Exception e) {
}
}
}
...
};
final IPageListener pageListener = new IPageListener() {
#Override
public void pageOpened(IWorkbenchPage page) {
page.addPartListener(partListener);
}
...
};
final IWindowListener windowListener = new IWindowListener() {
#Override
public void windowOpened(IWorkbenchWindow window) {
window.addPageListener(pageListener);
}
...
};
IWorkbenchWindow activeWindow = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
if (activeWindow != null)
{
IWorkbenchPage activePage = activeWindow.getActivePage();
if (activePage != null)
{
activePage.addPartListener(partListener);
}
else
{
activeWindow.addPageListener(pageListener);
}
}
else
{
for (IWorkbenchWindow window : PlatformUI.getWorkbench().getWorkbenchWindows())
{
for (IWorkbenchPage page : window.getPages()) {
page.addPartListener(partListener);
}
window.addPageListener(pageListener);
}
PlatformUI.getWorkbench().addWindowListener(windowListener);
}
One last detail about this code snippet is that it requires a dependency on the org.eclipse.ui.browser plugin to have access to the WebBrowserEditor class.