i have install java 8 and eclipse luna when i am trying to import javafx.application package it will not showing the Application class i have add jar called jfxrt but it is not working**
import javafx.application.;
public class FxExample {
public static void main(String[] args) {
}
}
Please make yourself familiar with the JavaFX language and read at least the documentation about how to implement Hello World, JavaFX Style.
Since you are on eclipse instead of NetBeans, I rather suggest you get e(fx)clipse instead of trying to get it to work manually. Just download the package, install it and you're good to start developing.
Related
I try run my R Script within JavaFx. I use Renjin for this purpose and it seems to work properly with statements I run internally. But I want to run an external R Script. The project is set up with Maven so the path should be easy as the R Script is in the resources folder. The path works when I load FXML files, so I'm pretty confused why it can't find my Script.
Here's a short example:
package survey;
import javax.script.*;
import org.renjin.script.*;
import java.io.FileReader;
public class calcFunction {
public static void main(String[] args) throws Exception {
// create a script engine manager:
RenjinScriptEngineFactory factory = new RenjinScriptEngineFactory();
// create a Renjin engine:
ScriptEngine engine = factory.getScriptEngine();
engine.put("x", 4);
engine.put("y", 5);
engine.eval(new FileReader("/test.R"));
}
}
Is something missing? Thanks in advance!
EDIT1:
With my FXML files it works with the "/" path like this:
root = FXMLLoader.load(getClass().getResource("/moduleDa.fxml"));
EDIT2:
Someone who deleted his comment proposed this:
engine.eval(new FileReader(new File(".").getAbsolutePath()+"/test.R"));
It works if the script is in the root directory, where the pom.xml file is located. #James_D made it work so the R script can be located in the resources folder - thanks a lot!
If your R script is bundled as part of the application, it can't be treated as a file - you need to treat it as a resource. Typically, you will deploy your application as a Jar file, and the resources will be elements within that jar file (they won't be files in their own right).
So just treat the R script as a resource and load it as such. I don't know the renjin framework, but I assume ScriptEngine here is a javax.script.ScriptEngine, in which case ScriptEngine.eval(...) takes a Reader as a parameter, and so (if your R script is located in the root of the class path) you can do
engine.eval(new InputStreamReader(getClass().getResourceAsStream("/test.R")));
I have started Apache Ignite server via Maven Dependency trough eclipse,can anyone tell me how to monitor cache through visor command? How to enable it when setup Apache Ignite via Maven?
I think the most easy way is to download binary distributive and lunch Visor command line from "\bin" folder. Note, you need to download release that match to that you are using in your Maven based application.
The second way is to use ignite-visor-console module from Maven
And start Visor command line via: org.apache.ignite.visor.commands.VisorConsole object (it extends App). Note, Visor command line is written on Scala.
Sample code:
import org.apache.ignite.visor.commands.VisorConsole;
public class Test {
static public void main(String args[]) {
VisorConsole.main(args);
}
}
Also see Visor command line documentation.
And also give a try for Web Console, as Dmitriy suggested.
I'm attempting to minify my .JSX files with ASP.NET Minification and Optimization via System.Web.Optimization.React. I've installed the MVC4 React Package as well as the Optimization package, but whenever I try to include a bundle I get the following:
React.TinyIoC.TinyIoCResolutionException: Unable to resolve type: React.IReactEnvironment
The InnerException is always null
My bundles are setup as follows:
bundles.Add(new ScriptBundle("~/Bundle/Scripts/ReactJS").Include(
"~/Scripts/React/react-0.12.2.js",
"~/Scripts/React/react-with-addons-0.12.2.js",
"~/Scripts/React/JSXTransformer-0.12.2.js"
));
bundles.Add(new JsxBundle("~/Bundle/Scripts/ReactCalendar").Include(
"~/Scripts/React/Calendar/Main.react.jsx",
"~/Scripts/React/Calendar/Components/Calendar.react.jsx",
"~/Scripts/React/Calendar/Components/CalendarEvent.react.jsx",
"~/Scripts/React/Calendar/Components/CalendarControls.react.jsx",
"~/Scripts/React/Calendar/Components/CalendarTimeSlots.react.jsx"
));
And included in the view as:
#section scripts{
#Scripts.Render("~/Bundle/Scripts/ReactJS");
#Scripts.Render("~/Bundle/Scripts/ReactCalendar");
}
The error is always thrown on line:
#Scripts.Render("~/Bundle/Scripts/ReactCalendar");
Anyone got any ideas on how to solve / debug this one? Let me know if more info is needed.
I'm not sure if this is the same issue I was facing, but I googled the exact same error, found this SO topic as the first hit, with no definitive answer, so I thought I'd offer my solution.
I'm using .NET 4.5 in an MVC app, and React.Web.Mvc4 v3.0.0.
I managed to work around this issue with the help of this comment on Github.
Here's my entire ReactConfig.cs:
using React;
using React.TinyIoC;
using React.Web.TinyIoC;
namespace NS.Project
{
public static class ReactConfig
{
public static void Configure()
{
Initializer.Initialize(AsPerRequestSingleton);
ReactSiteConfiguration.Configuration
.SetLoadBabel(false)
.AddScriptWithoutTransform("~/React/dist/server.bundle.js");
}
private static TinyIoCContainer.RegisterOptions AsPerRequestSingleton(
TinyIoCContainer.RegisterOptions registerOptions)
{
return TinyIoCContainer.RegisterOptions.ToCustomLifetimeManager(
registerOptions,
new HttpContextLifetimeProvider(),
"per request singleton"
);
}
}
}
Then, I'm callingReactConfig.Configure explicitly from Application_Start.
"Unable to resolve type: React.IReactEnvironment" with no InnerException generally means ReactJS.NET is not initialising properly for some reason. In web apps, ReactJS.NET handles initialisation through the use of WebActivator. Make sure your project is referencing React.Web, React.Web.Mvc4 and WebActivatorEx, and all the corresponding .dll files are ending up in your app's bin directory.
Also, you do not need to (and should not) include JSXTransformer in your JavaScript bundles, as ReactJS.NET does all the JSX compilation server-side.
Something looks like changed from React.Web.MVc4 version 4.0.0. versions before didnt have that problem.
as stated here
Install the React.Web.Mvc4 package through NuGet. You will also need to install a JS engine to use (either V8 or ChakraCore are recommended). See the JSEngineSwitcher docs for more information.
To use V8, add the following packages:
JavaScriptEngineSwitcher.V8
JavaScriptEngineSwitcher.V8.Native.win-x64
ReactConfig.cs will be automatically generated for you. Update it to register a JS engine and your JSX files:
using JavaScriptEngineSwitcher.Core;
using JavaScriptEngineSwitcher.V8;
[assembly: WebActivatorEx.PreApplicationStartMethod(typeof(React.Sample.Mvc4.ReactConfig), "Configure")]
namespace React.Sample.Mvc4
{
public static class ReactConfig
{
public static void Configure()
{
ReactSiteConfiguration.Configuration
.AddScript("~/Content/Sample.jsx");
JsEngineSwitcher.Current.DefaultEngineName = V8JsEngine.EngineName;
JsEngineSwitcher.Current.EngineFactories.AddV8();
}
}
}
If anyone needs this, just install this nuget and it will resolve this issue.
System.Web.Optimization.React
i've set up a GWT project using Gradle as build management and everything is fine.
I can deploy my project to my local tomcat in eclipse and the application runs as intended.
But if I start the DevMode and change something in my css resources (which are bound as CssResource classes with an #Source annotation), the GWT DevMode doesn't catch it and the css changes are not taken into account.
Am I missing something? I would expect the DevMode to detect changes in .css files during development without having to run a gwt compile again.
Here is an example of how i am using the css resources:
public interface XOFooterPanelResource extends FooterPanelResource, ClientBundle {
#Override
#Source("XOFooterPanel.css")
XOFooterPanelStyle style();
#Override
#ImageOptions(repeatStyle = RepeatStyle.Horizontal)
ImageResource footerPanelBackground();
#Override
#ImageOptions(repeatStyle = RepeatStyle.Horizontal)
ImageResource footerPanelBackgroundEndUser();
#Override
#Source("footerDelimiter.jpg")
ImageResource footerDelimiter();
}
public interface XOFooterPanelStyle extends FooterPanelStyle, CssResource {
}
As you can see i have my XOFooterPanelStyle interface which extends CssResource. It is used in the XOFooterPanelResource - which extends ClientBundle - by using the #Source annotation with the name of my CSS file.
And here is the part of my gradle build file which is responsible for starting the DevMode:
javaexec {
main = 'com.google.gwt.dev.DevMode'
jvmArgs = ['-Xmx2048M', '-XX:MaxPermSize=1024M']
classpath {
[
sourceSets.main.java.srcDirs,
// Java source
sourceSets.main.output.resourcesDir,
// Generated resources
sourceSets.main.output.classesDir,
// Generated classes
sourceSets.main.compileClasspath // Deps
]
}
args = [
'-startupUrl',
'myapp/index.html',
'-noserver',
'-war',
'build/devmode',
'-gen',
'gen'
]
ext.gwtModules.each {
args += it
}
}
As mentioned before i'm using tomcat inside eclipse to run the application, so the -noserver option is set.
Unless you are directly changing the css file that tomcat is referencing, you will not see the changes in dev mode. I believe that when you deploy via tomcat in eclipse, your code is not referenced directly from the eclipse project workspace, a copy is moved to the tomcat webapps folder.
I'm not sure what the standard way around this is. I feel like there has to be an option to refresh static resources to the tomcat instance from eclipse, but I haven't looked into it.
Here are two ways i've gotten around the issue when I needed to:
1) You can put CSS code in your ui.xml files, and that should get picked up by devMode.
Tutorial on how to add css to your ui.xml
2) You could also modify the css file in the webapps folder directly, then migrate any changes you made back to the workspace version.
I have a TestNG project. Don't have any main class, currently it is running like "Run As TestNG".
I want to export it as runnable jar or jar so that any one can just hit a command from command line and test cases start running.
Could any one help me out in this? or suggest any other way to deliver the code in runnable form...
I am not using ant or maven.
Thanks
I seem to have found the solution after a bit of googling. This works fine in Eclipse (Juno).
Say, you have a TestNG file named 'Tests.java'. As you rightly pointed out, there won't be a class with main method.
So, we have to create a new Java class file under the same package. Let us name it 'MainOne.java'. This will have a class with main method.
Here is the code you need:
import com.beust.testng.TestNG;
public class MainOne {
public static void main(String[] args) {
TestNG testng = new TestNG();
Class[] classes = new Class[]{Tests.class};
testng.setTestClasses(classes);
testng.run();
}
Run the 'MainOne.java' as a Java application. Then right click on the package -> Export -> Runnable Jar [Choose 'MainOne' as Launch Configuration] -> Finish.
My current understanding is that, in order to benefit from the parallel niftiness of TestNG, one should use the static main method in org.testng's jar file when running the Java class from the command line rather than from inside Eclipse IDE.
The issue then becomes classpath, which defines how java finds all the JAR files. I found http://javarevisited.blogspot.com/2012/10/5-ways-to-add-multiple-jar-to-classpath-java.html to be most useful because it has the * wildcard mentioned --- VERY helpful when you need to reference all the jar files required for Selenum + TestNG + custom test suites.
This is my current Windows BAT file, and it works. ADV.jar contains my custom class but no main method.
setlocal
set r=d:\Apps\Selenium\
cd /d %~dp0
java -classpath %r%Downloaded\*;%r%MyCompany\ADV.jar; org.testng.TestNG .\testng-customsuite-adv.xml
pause
All the JAR files that I downloaded from public places went into my d:\Apps\Selenium\Downloaded folder. I put my custom ADV.jar file in d:\Apps\Selenium\MyCompany to keep it separate.
I created my ADV.jar file from Eclipse using Export Jar file and ignored warnings about a missing main method.
Aside: while this https://stackoverflow.com/a/16879386/424855 was very intriguing, I could not figure out how to make that work.
Here is the better way to do it.
You can just create a main method which will have list of all test classes to be executed as follows:
public static void main(String[] args) {
TestListenerAdapter tla = new TestListenerAdapter();
TestNG testng = new TestNG();
testng.setTestClasses(new Class[] { test_start.class });
testng.addListener(tla);
testng.run();
}
Here is the reference URL from the official testng website.
Run the MainOne.java as a Java application. Then right click on the package -> Export -> Runnable Jar [Choose MainOne as Launch Configuration] -> Finish.