I have some questions regarding my block of code. I've tried running it in Netbeans and it doesn't seem to like this block of code on Google Glass. I compiled it using Eclipse and it seems to compile correctly as well.
package com.openglassquartz.helloglass;
import java.io.IOException;
import java.net.URL;
import java.util.Scanner;
public class OnlineRetrieval {
boolean activeGame;
public boolean checkGame() { //Method for which to check if there is a current game going on.
try {
URL url = new URL("http://danielchan.me/league/active.txt");
Scanner s = new Scanner(url.openStream()); //All errors point to this line of code??
int temporary_Reading = s.nextInt();
if(temporary_Reading == 1) {
return activeGame = true;
} else {
return activeGame = false;
}
} catch(IOException ex) {
ex.printStackTrace();
}
return activeGame;
}
}
From the LaunchService Class.
OnlineRetrieval OR = new OnlineRetrieval();
boolean temp_Check = OR.checkGame();
01-14 16:38:32.187: E/AndroidRuntime(18639): at com.openglassquartz.helloglass.OnlineRetrieval.checkGame(OnlineRetrieval.java:20)
01-14 16:38:32.187: E/AndroidRuntime(18639): at com.openglassquartz.helloglass.CardLaunchService.onStartCommand(CardLaunchService.java:77)
How can I fix this? It seems to work on Netbeans when I tried outputting it but not in Google Glass.
Two things to look at (it looks like your stack trace is cut off in your post):
Did you add the android.permission.INTERNET permission to your application's manifest?
Is this code being called in the main UI thread? Network operations must be executed in a background thread – you may want to look at the AsyncTask class as a way of handling this.
Related
In my c++ project, I need to create Subjects having an initial value, that may be updated. On each subscription/update, subscribers may trigger then data processing... In a previous Angular (RxJS) project, this kind of behavior was handled with ReplaySubject(1).
I'm not able to reproduce this using c++ rxcpp lib.
I've looked up for documentation, snippets, tutorials, but without success.
Expected pseudocode (typescript):
private dataSub: ReplaySubject<Data> = new ReplaySubject<Data>(1);
private init = false;
// public Observable, immediatly share last published value
get currentData$(): Observable<Data> {
if (!this.init) {
return this.initData().pipe(switchMap(
() => this.dataSub.asObservable()
));
}
return this.dataSub.asObservable();
}
I think you are looking for rxcpp::subjects::replay.
Please try this:
auto coordination = rxcpp::observe_on_new_thread();
rxcpp::subjects::replay<int, decltype(coordination)> test(1, coordination);
// to emit data
test.get_observer().on_next(1);
test.get_observer().on_next(2);
test.get_observer().on_next(3);
// to subscribe
test.get_observable().subscribe([](auto && v)
printf("%d\n", v); // this will print '3'
});
sorry if my question confusing cause this is the first time i make a question. if there is something that i can do to make it clearer, just tell me so i can improve the way i'm asking.
currently i'm trying to make web service from netbeans that can check some data from database. Because i'm newbie so i followed tutorial from
http://programmerguru.com/webservice-tutorial/how-to-create-java-webservice-in-netbeans/ to make the web service.
but when i trying to check the database with my usual way with mybattis, it keep in give me java.lang.nulpointerexception. when i try to debug it, it give me "variable information not available, source compiled without -g option" and throw me to InvocationTargetException.java
public InvocationTargetException(Throwable target) {
super((Throwable)null); // Disallow initCause
this.target = target;
}
here is the code for the web service
/*
* To change this license header, choose License Headers in Project
Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package com.bismillah.berkah;
import com.bismillah.berkah.dao.DummyDao;
import com.bismillah.berkah.daoImpl.DummyDaoImpl;
import java.lang.reflect.InvocationTargetException;
import java.util.HashMap;
import java.util.Map;
import javax.jws.WebService;
import javax.jws.WebMethod;
import javax.jws.WebParam;
/**
*
* #author Ari
*/
#WebService(serviceName = "Check4Update")
public class Check4Update {
public DummyDaoImpl ddi;
/**
* This is a sample web service operation
*
* #param InTerminalNumber
* #return
*/
#WebMethod(operationName = "CheckUpdate")
public String hello(#WebParam(name = "InTerminalNumber") String InTerminalNumber) {
String OutError = "";
String OutMessage = "";
if (InTerminalNumber == null) {
return "InTerminalNumber can't be null";
} else {
Map mapdao = new HashMap<String, Object>();
Map map = new HashMap<String, Object>();
map.put("InTerminalNumber", InTerminalNumber);
mapdao = ddi.check4UpdatePatch(map);
OutError = (String) mapdao.get("OutError");
OutMessage = (String) mapdao.get("OutMessage");
return "Error : " + OutError + ", with message : " + OutMessage;
}
}
public void setDdi(DummyDaoImpl ddi) {
this.ddi = ddi;
}
}
and here is the code mybattis impl
package com.bismillah.berkah.daoImpl;
import com.bismillah.berkah.Check4Update;
import com.bismillah.berkah.config.MyBatisConnectionFactory;
import com.bismillah.berkah.dao.*;
import java.util.Map;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
/**
*
* #author Ari
*/
public class DummyDaoImpl
{
private SqlSessionFactory sqlSessionFactory;
public DummyDaoImpl()
{
sqlSessionFactory = MyBatisConnectionFactory.getSqlSessionFactory();
}
public Map check4UpdatePatch(Map map)
{
Check4Update c4u = new Check4Update();
c4u.setDdi(this);
SqlSession session = sqlSessionFactory.openSession();
try
{
session.selectOne("dummy.check4UpdatePatch", map);
} catch (Exception ex)
{
ex.toString();
} finally
{
session.close();
}
return map;
}
}
could you tell me how to fix it? so i can get the data? by the way i always get thrown at my web service, here exactly
mapdao = ddi.check4UpdatePatch(map);
once again sorry if my question confusing cause this is the first time i make a question. if there is something that i can do to make it clearer, just tell me so i can improve the way i'm asking.
sorry already found the problem, it is cause wrong configuration on mybatis.
i haven't change my string resource on MyBatisConnectionFactory, also the one at xml file.
maybe that's why i always get java lang nul.
actually when i trying to fix this, i make some interface class too, but still not working until i find my problem. if anyone have some problem like me maybe you can fix it with adding some interface so the impl will override the interface.
I have created a class and published it as web service. I have created a web method like this:
public void addNewRow(MyObject cob) {
MyAppModule myAppModule = new MyAppModule();
try {
ViewObjectImpl vo = myAppModule.getMyVewObject1();
================> vo object is now null
Row r = vo.createRow();
r.setAttribute("Param1", cob.getParam1());
r.setAttribute("Param2", cob.getParam2());
vo.executeQuery();
getTransaction().commit();
} catch (Exception e) {
e.printStackTrace();
}
}
As I have written in code, myAppModule.getMyVewObject1() returns a null object. I do not understand why! As far as I know AppModule has to initialize the object by itself when I call "getMyVewObject1()" but maybe I am wrong, or maybe this is not the way it should be for web methods. Has anyone ever faced this issue? Any help would be very appreciated.
You can check nice tutorial: Building and Using Web Services with JDeveloper
It gives you general idea about how you should build your webservices with ADF.
Another approach is when you need to call existing Application Module from some bean that doesn't have needed environment (servlet, etc), then you can initialize it like this:
String appModuleName = "org.my.package.name.model.AppModule";
String appModuleConfig = "AppModuleLocal";
ApplicationModule am = Configuration.createRootApplicationModule(appModuleName, appModuleConfig);
Don't forget to release it:
Configuration.releaseRootApplicationModule(am, true);
And why you shouldn't really do it like this.
And even more...
Better aproach is to get access to binding layer and do call from there.
Here is a nice article.
Per Our PM : If you don't use it in the context of an ADF application then the following code should be used (sample code is from a project I am involved in). Note the release of the AM at the end of the request
#WebService(serviceName = "LightViewerSoapService")
public class LightViewerSoapService {
private final String amDef = " oracle.demo.lightbox.model.viewer.soap.services.LightBoxViewerService";
private final String config = "LightBoxViewerServiceLocal";
LightBoxViewerServiceImpl service;
public LightViewerSoapService() {
super();
}
#WebMethod
public List<Presentations> getAllUserPresentations(#WebParam(name = "userId") Long userId){
ArrayList<Presentations> al = new ArrayList<Presentations>();
service = (LightBoxViewerServiceImpl)getApplicationModule(amDef,config);
ViewObject vo = service.findViewObject("UserOwnedPresentations");
VariableValueManager vm = vo.ensureVariableManager();
vm.setVariableValue("userIdVariable", userId.toString());
vo.applyViewCriteria(vo.getViewCriteriaManager().getViewCriteria("byUserIdViewCriteria"));
Row rw = vo.first();
if(rw != null){
Presentations p = createPresentationFromRow(rw);
al.add(p);
while(vo.hasNext()){
rw = vo.next();
p = createPresentationFromRow(rw);
al.add(p);
}
}
releaseAm((ApplicationModule)service);
return al;
}
Have a look here too:
http://www.youtube.com/watch?v=jDBd3JuroMQ
Basically, I had the same problem as here:
Symfony2 & Translatable : entity's locale is empty
Translations where saved in the ext_translations table, but where not being displayed.
After adding the proposed fix, it DID work.
Today I upgraded from 2.0 to 2.1 I managed to get pretty much everything working so far.
But now my translatables are again not being displayed properly (they ARE still being saved properly).
I think it has something to do with the changes to where and how the users locale is stored in 2.1 compared to 2.0 .. but i cannot figure this one out.
Fixed this by registering a custom listener
namespace XXX;
use Symfony\Component\HttpKernel\Event\GetResponseEvent;
use Symfony\Component\HttpKernel\KernelEvents;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
class LocaleListener implements EventSubscriberInterface
{
private $defaultLocale;
public function __construct($defaultLocale = 'en')
{
$this->defaultLocale = $defaultLocale;
}
public function onKernelRequest(GetResponseEvent $event)
{
$request = $event->getRequest();
if (!$request->hasPreviousSession()) {
return;
}
if ($locale = $request->attributes->get('_locale')) {
$request->getSession()->set('_locale', $request->getLocale());
} else {
$request->setDefaultLocale($request->getSession()->get('_locale', $this->defaultLocale));
}
}
static public function getSubscribedEvents()
{
return array(
// must be registered before the default Locale listener
KernelEvents::REQUEST => array(array('onKernelRequest', 17)),
);
}
}
then changed
$request->setDefaultLocale($request->getSession()->get('_locale', $this->defaultLocale));
to
$request->setLocale($request->getSession()->get('_locale'));
and used
$this->getRequest()->getSession()->set('_locale', 'nl');
to set the locale, translations and translatables now work
hope this also helps someone else ..
I'm having some problems with making my tests insert fake data in my database. I've tried a few approaches, without luck. It seems that Global.onStart is not run when running tests within a FakeApplication, although I think I read that it should work.
object TestGlobal extends GlobalSettings {
val config = Map("global" -> "controllers.TestGlobal")
override def onStart(app: play.api.Application) = {
// load the data ...
}
}
And in my test code:
private def fakeApp = FakeApplication(additionalConfiguration = (
inMemoryDatabase().toSeq +
TestGlobal.config.toSeq
).toMap, additionalPlugins = Seq("plugin.InsertTestDataPlugin"))
Then I use running(fakeApp) within each test.
The plugin.InsertTestDataPlugin was another attempt, but it didn't work without defining the plugin in conf/play.plugins -- and that is not wanted, as I only want this code in the test scope.
Should any of these work? Have anyone succeeded with similar options?
Global.onStart should be executed ONCE (and only once) when the application is launched, whatever mode (dev, prod, test) it is in. Try to follow the wiki on how to use Global.
In that method then you can check the DB status and populate. For example in Test if you use an in-memory db it should be empty so do something akin to:
if(User.findAll.isEmpty) { //code taken from Play 2.0 samples
Seq(
User("guillaume#sample.com", "Guillaume Bort", "secret"),
User("maxime#sample.com", "Maxime Dantec", "secret"),
User("sadek#sample.com", "Sadek Drobi", "secret"),
User("erwan#sample.com", "Erwan Loisant", "secret")
).foreach(User.create)
}
I chose to solve this in another way:
I made a fixture like this:
def runWithTestDatabase[T](block: => T) {
val fakeApp = FakeApplication(additionalConfiguration = inMemoryDatabase())
running(fakeApp) {
ProjectRepositoryFake.insertTestDataIfEmpty()
block
}
}
And then, instead of running(FakeApplication()){ /* ... */}, I do this:
class StuffTest extends FunSpec with ShouldMatchers with CommonFixtures {
describe("Stuff") {
it("should be found in the database") {
runWithTestDatabase { // <--- *The interesting part of this example*
findStuff("bar").size must be(1);
}
}
}
}