Eclipse Community Forums: TMF (Xtext) » How to run automatically generated java file has a method main in Xtext generator ?

Home » Modeling » TMF (Xtext) » How to run automatically generated java file has a method main in Xtext generator ?

How to run automatically generated java file has a method main in Xtext generator ? [message #1755310]

Thu, 02 March 2017 04:53

Eclipse User

I create a template in myDSLGenerator.Xtend in this template a method main, then when runtime eclipse and write myDSL in Xtext Editor. i want when save my dsl model the genrated java file run automatically when is generating.

is there a method to run my method main in Xtend.

[Updated on: Thu, 02 March 2017 04:56] by Moderator

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755311 is a reply to message #1755310]

Thu, 02 March 2017 04:55

Eclipse User

Hi,

can you please give more context?

- if you are in eclipse
- if you are in a project that has xtext nature
- if this project not a java project or is a java project and the test.mydsl file is in a source folder
- if build automatically is on.

the generator will be called on save

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755312 is a reply to message #1755311]

Thu, 02 March 2017 04:59

Eclipse User

p.s.: it will not call the main, it will call doGenerate

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755313 is a reply to message #1755311]

Thu, 02 March 2017 05:01

Eclipse User

if I am in a project that has xtext nature then save the generated java file is contain a method main i want to build automatically .

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755315 is a reply to message #1755313]

Thu, 02 March 2017 05:04

Eclipse User

Is there a mthod doRun to run the genrated java file or other solution

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755320 is a reply to message #1755315]

Thu, 02 March 2017 05:31

Eclipse User

can you please elaborarate your usecase.
you can do inside doGenerate whatever you want. (even call another java main)

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755322 is a reply to message #1755320]

Thu, 02 March 2017 05:43

Eclipse User

or do you want to run the file that was generated? this you have to do yourself.
there is no out of the box mechanism for that

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755327 is a reply to message #1755322]

Thu, 02 March 2017 06:16

Eclipse User

well there is actually a way if you abuse xtext.xbase.testing (you need to add a dependency to that testing bundle at runtime)


		val cl = MyDslGenerator.classLoader
		println(cl)
		val InMemoryJavaCompiler compiler = new InMemoryJavaCompiler(cl, JavaVersion.JAVA8)
		val result = compiler.compile(new JavaSource(
			"a/Hello.java",
			'''
				package a; 
				public class Hello {
					public static void main(String[] args) {
						System.out.println("Hello Dynamic");
					}
				}
			'''
		))
		val Class<?> mainClazz = result.classLoader.loadClass("a.Hello")
		val Method mainMethod = mainClazz.getMethod("main", typeof(String[]));
		val String[] args = #[]
		mainMethod.invoke(null,#[args])

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755341 is a reply to message #1755327]

Thu, 02 March 2017 08:22

Eclipse User

thanks for your quick answer , OK where i put this code it's not clear ? i put it in myDSLGenerator.xtend please help me .

And where i add the Dependency .

[Updated on: Thu, 02 March 2017 08:26] by Moderator

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755346 is a reply to message #1755341]

Thu, 02 March 2017 08:57

Eclipse User

add it to the dependencys in manifest.mf

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755349 is a reply to message #1755346]

Thu, 02 March 2017 09:23

Eclipse User

About this code where i put it

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755353 is a reply to message #1755349]

Thu, 02 March 2017 09:48

Eclipse User

what about there where you have the generate java in hand.

i dont know if you wrote

- an igenerator
- a builder participant
- something else
- ......

=> first try then ask

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755371 is a reply to message #1755353]

Thu, 02 March 2017 11:56

Eclipse User

yes , i wrote an igenerator i add this dependency org.eclipse.xtext.xbase.testing;resolution:=optional in manifest and import xtext.xbase.testing but i have this problem :

- The method or field JavaVersion is undefined for the type MyDslGenerator
- InMemoryJavaCompiler cannot be resolved.

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755377 is a reply to message #1755371]

Thu, 02 March 2017 12:08

Eclipse User

argggggggggggggg

import java.lang.reflect.Method
import org.eclipse.emf.ecore.resource.Resource
import org.eclipse.xtext.generator.AbstractGenerator
import org.eclipse.xtext.generator.IFileSystemAccess2
import org.eclipse.xtext.generator.IGeneratorContext
import org.eclipse.xtext.util.JavaVersion
import org.eclipse.xtext.xbase.testing.InMemoryJavaCompiler
import org.eclipse.xtext.xbase.testing.JavaSource

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755379 is a reply to message #1755377]

Thu, 02 March 2017 12:28

Eclipse User

i have errors in this imports ;

import org.eclipse.xtext.generator.AbstractGenerator
import org.eclipse.xtext.generator.IFileSystemAccess2
import org.eclipse.xtext.generator.IGeneratorContext
import org.eclipse.xtext.util.JavaVersion

org.eclipse.xtext.generator.IFileSystemAccess2 cannot be resolved
to a type.

org.eclipse.xtext.generator.IFileSystemAccess2 cannot be resolved to a type.

org.eclipse.xtext.generator.IGeneratorContext cannot be resolved
to a type.

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755380 is a reply to message #1755379]

Thu, 02 March 2017 12:32

Eclipse User

which xtext version do you use?
how does your generator look like?

the generator that xtext creates out of the box looks like

import org.eclipse.emf.ecore.resource.Resource
import org.eclipse.xtext.generator.AbstractGenerator
import org.eclipse.xtext.generator.IFileSystemAccess2
import org.eclipse.xtext.generator.IGeneratorContext

/**
 * Generates code from your model files on save.
 * 
 * See https://www.eclipse.org/Xtext/documentation/303_runtime_concepts.html#code-generation
 */
class MyDslGenerator extends AbstractGenerator {

	override void doGenerate(Resource resource, IFileSystemAccess2 fsa, IGeneratorContext context) {
//		fsa.generateFile('greetings.txt', 'People to greet: ' + 
//			resource.allContents
//				.filter(Greeting)
//				.map[name]
//				.join(', '))
	}
}

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755385 is a reply to message #1755380]

Thu, 02 March 2017 12:43

Eclipse User

i have Xtext version : 2.4.3

this mydslIGenerator :

import org.eclipse.emf.ecore.resource.Resource
import org.eclipse.xtext.generator.IGenerator
import org.eclipse.xtext.generator.IFileSystemAccess
import org.xtext.example.mydsl.myDsl.Entity
import java.lang.reflect.Method
import org.eclipse.xtext.xbase.testing.InMemoryJavaCompiler
import org.eclipse.xtext.xbase.testing.JavaSource

import java.lang.reflect.Method
import org.eclipse.emf.ecore.resource.Resource
import org.eclipse.xtext.generator.AbstractGenerator
import org.eclipse.xtext.generator.IFileSystemAccess2
import org.eclipse.xtext.generator.IGeneratorContext
import org.eclipse.xtext.util.JavaVersion
import org.eclipse.xtext.xbase.testing.InMemoryJavaCompiler
import org.eclipse.xtext.xbase.testing.JavaSource


/**
 * Generates code from your model files on save.
 * 
 * see http://www.eclipse.org/Xtext/documentation.html#TutorialCodeGeneration
 */
class MyDslGenerator implements IGenerator {
	
	override void doGenerate(Resource resource, IFileSystemAccess fsa) {
for(e: resource.allContents.toIterable.filter(typeof(Entity))){
		 	compile(e,fsa) }
				val cl = MyDslGenerator.classLoader
		println(cl)
		val InMemoryJavaCompiler compiler = 
		new InMemoryJavaCompiler(cl, JavaVersion.JAVA7)
		val result = compiler.compile(new JavaSource(
			"a/Hello.java",
			'''
				package a; 
				public class Hello {
					public static void main(String[] args) {
						System.out.println("Hello Dynamic");
					}
				}
			'''
		))
		val Class<?> mainClazz = result.classLoader.loadClass("a.Hello")
		val Method mainMethod = mainClazz.getMethod("main", typeof(String[]));
		val String[] args = #[]
		mainMethod.invoke(null,#[args])
		
	}

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755386 is a reply to message #1755385]

Thu, 02 March 2017 12:45

Eclipse User

arrrg

in that stoneange version this is all different.

i dont know if it has the InMemoryJavaCompiler. i doubt that Sad

if yes it is in a different package and may have different api.

=> you have have to use a more recent xtext version.

what is the reason you keep using this real stone stone stone (dinosaur) age version of xtext?

[Updated on: Thu, 02 March 2017 12:47] by Moderator

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755387 is a reply to message #1755386]

Thu, 02 March 2017 12:53

Eclipse User

i ' m using PolarSys IDE Version: 0.8 integrating Xtext

witch eclipse and xtext version do you use for download it .

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755388 is a reply to message #1755387]

Thu, 02 March 2017 13:12

Eclipse User

i use xtext 2.11

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755389 is a reply to message #1755388]

Thu, 02 March 2017 13:18

Eclipse User

you may use this class in your old version https://github.com/eclipse/xtext/blob/v2.4.3/plugins/org.eclipse.xtext.xbase.junit/src/org/eclipse/xtext/xbase/compiler/OnTheFlyJavaCompiler.java

but i cannot tell you how to use it.
maybe google helps.

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755394 is a reply to message #1755389]

Thu, 02 March 2017 13:54

Eclipse User

I search in googel for this but i didn't find it , can you help me please ?

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755397 is a reply to message #1755394]

Thu, 02 March 2017 14:18

Eclipse User

how much experience do you have as a programmer in general?

if google does not find anything you have to have a look at the stoneage old xtext test code yourself

		val OnTheFlyJavaCompiler compiler = new OnTheFlyJavaCompiler()
		val mainClazz = compiler.compileToClass("a.Hello", '''
				package a; 
				public class Hello {
					public static void main(String[] args) {
						System.out.println("Hello Dynamic");
					}
				}
			''')
		
		val Method mainMethod = mainClazz.getMethod("main", typeof(String[]));
		val String[] args = #[]
		mainMethod.invoke(null,#[args])

or simpy have a look at the class and the methods and .....

git clone git@github.com:eclipse/xtext.git
cd xtext
git checkout tags/v2.4.3 -b v2.4.3
cd tests
grep -ril "new OnTheFlyJavaCompiler" .

results ./org.eclipse.xtext.xbase.tests/src/org/eclipse/xtext/xbase/tests/compiler/OnTheFlyJavaCompilerTest.java
open it in editor and have a look

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755427 is a reply to message #1755397]

Fri, 03 March 2017 04:25

Eclipse User

Hii Christian DietrichFriend , I updated my Xtext to last version and the error of pervious imports is resloved , But when runtime new eclipse for writing my Dsl then press CTRL+S i have this error :

Errors occurred during the build.
Errors running builder 'Xtext Project Builder' on project 'Test'.
org/eclipse/xtext/xbase/testing/InMemoryJavaCompiler

and this code error in Console , Did you test it in your machine ?


!ENTRY org.eclipse.osgi 2 0 2017-03-03 10:03:55.175
!MESSAGE While loading class "org.eclipse.egit.ui.internal.ConfigurationChecker$1$1", thread "Thread[Worker-1,5,main]" timed out waiting (5021ms) for thread "Thread[main,6,main]" to finish starting bundle "org.eclipse.egit.ui_4.4.1.201607150455-r [146]". To avoid deadlock, thread "Thread[Worker-1,5,main]" is proceeding but "org.eclipse.egit.ui.internal.ConfigurationChecker$1$1" may not be fully initialized.
!STACK 0
org.osgi.framework.BundleException: Unable to acquire the state change lock for the module: osgi.identity; type="osgi.bundle"; version:Version="4.4.1.201607150455-r"; osgi.identity="org.eclipse.egit.ui"; singleton:="true" [id=146] STARTED [STARTED]
	at org.eclipse.osgi.container.Module.lockStateChange(Module.java:337)
	at org.eclipse.osgi.container.Module.start(Module.java:401)
	at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:470)
	at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:107)
	at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:529)
	at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:325)
	at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:345)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:423)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:372)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:364)
	at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:161)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at org.eclipse.egit.ui.internal.ConfigurationChecker$1.run(ConfigurationChecker.java:45)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
Caused by: java.util.concurrent.TimeoutException: Timeout after waiting 5 seconds to acquire the lock.
	at org.eclipse.osgi.container.Module.lockStateChange(Module.java:334)
	... 13 more
Root exception:
java.util.concurrent.TimeoutException: Timeout after waiting 5 seconds to acquire the lock.
	at org.eclipse.osgi.container.Module.lockStateChange(Module.java:334)
	at org.eclipse.osgi.container.Module.start(Module.java:401)
	at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:470)
	at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:107)
	at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:529)
	at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:325)
	at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:345)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:423)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:372)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:364)
	at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:161)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at org.eclipse.egit.ui.internal.ConfigurationChecker$1.run(ConfigurationChecker.java:45)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

!ENTRY org.eclipse.oomph.setup.ui 2 0 2017-03-03 10:06:55.172
!MESSAGE java.lang.NullPointerException
!STACK 0
java.lang.NullPointerException
	at org.eclipse.oomph.setup.ui.SetupUIPlugin.performStartup(SetupUIPlugin.java:443)
	at org.eclipse.oomph.setup.ui.SetupUIPlugin.access$5(SetupUIPlugin.java:414)
	at org.eclipse.oomph.setup.ui.SetupUIPlugin$1$1.run(SetupUIPlugin.java:253)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
org.eclipse.osgi.internal.loader.EquinoxClassLoader@24f9a670[org.xtext.example.mydsl:1.0.0.qualifier(id=964)]

!ENTRY org.eclipse.core.resources 4 2 2017-03-03 10:09:45.042
!MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.core.resources".
!STACK 0
java.lang.NoClassDefFoundError: org/eclipse/xtext/xbase/testing/InMemoryJavaCompiler
	at org.xtext.example.mydsl.generator.MyDslGenerator.doGenerate(MyDslGenerator.java:30)
	at org.eclipse.xtext.generator.GeneratorDelegate.doGenerate(GeneratorDelegate.java:43)
	at org.eclipse.xtext.generator.GeneratorDelegate.generate(GeneratorDelegate.java:34)
	at org.eclipse.xtext.builder.BuilderParticipant.handleChangedContents(BuilderParticipant.java:564)
	at org.eclipse.xtext.builder.BuilderParticipant.handleChangedContents(BuilderParticipant.java:549)
	at org.eclipse.xtext.builder.BuilderParticipant.doGenerate(BuilderParticipant.java:534)
	at org.eclipse.xtext.builder.BuilderParticipant.doBuild(BuilderParticipant.java:280)
	at org.eclipse.xtext.builder.BuilderParticipant.build(BuilderParticipant.java:238)
	at org.eclipse.xtext.builder.impl.RegistryBuilderParticipant$DeferredBuilderParticipant.build(RegistryBuilderParticipant.java:161)
	at org.eclipse.xtext.builder.impl.RegistryBuilderParticipant.build(RegistryBuilderParticipant.java:69)
	at org.eclipse.xtext.builder.impl.XtextBuilder.doBuild(XtextBuilder.java:291)
	at org.eclipse.xtext.builder.impl.XtextBuilder.fullBuild(XtextBuilder.java:319)
	at org.eclipse.xtext.builder.impl.XtextBuilder.build(XtextBuilder.java:155)
	at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:735)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:206)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:246)
	at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:301)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:304)
	at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:360)
	at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:383)
	at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:144)
	at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:235)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
Caused by: java.lang.ClassNotFoundException: org.eclipse.xtext.xbase.testing.InMemoryJavaCompiler cannot be found by org.xtext.example.mydsl_1.0.0.qualifier
	at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:461)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:372)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:364)
	at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:161)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	... 25 more

!ENTRY org.eclipse.core.resources 4 75 2017-03-03 10:09:45.297
!MESSAGE Errors occurred during the build.
!SUBENTRY 1 org.eclipse.xtext.ui.shared 4 75 2017-03-03 10:09:45.298
!MESSAGE Errors running builder 'Xtext Project Builder' on project 'Test'.
!STACK 0
java.lang.NoClassDefFoundError: org/eclipse/xtext/xbase/testing/InMemoryJavaCompiler
	at org.xtext.example.mydsl.generator.MyDslGenerator.doGenerate(MyDslGenerator.java:30)
	at org.eclipse.xtext.generator.GeneratorDelegate.doGenerate(GeneratorDelegate.java:43)
	at org.eclipse.xtext.generator.GeneratorDelegate.generate(GeneratorDelegate.java:34)
	at org.eclipse.xtext.builder.BuilderParticipant.handleChangedContents(BuilderParticipant.java:564)
	at org.eclipse.xtext.builder.BuilderParticipant.handleChangedContents(BuilderParticipant.java:549)
	at org.eclipse.xtext.builder.BuilderParticipant.doGenerate(BuilderParticipant.java:534)
	at org.eclipse.xtext.builder.BuilderParticipant.doBuild(BuilderParticipant.java:280)
	at org.eclipse.xtext.builder.BuilderParticipant.build(BuilderParticipant.java:238)
	at org.eclipse.xtext.builder.impl.RegistryBuilderParticipant$DeferredBuilderParticipant.build(RegistryBuilderParticipant.java:161)
	at org.eclipse.xtext.builder.impl.RegistryBuilderParticipant.build(RegistryBuilderParticipant.java:69)
	at org.eclipse.xtext.builder.impl.XtextBuilder.doBuild(XtextBuilder.java:291)
	at org.eclipse.xtext.builder.impl.XtextBuilder.fullBuild(XtextBuilder.java:319)
	at org.eclipse.xtext.builder.impl.XtextBuilder.build(XtextBuilder.java:155)
	at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:735)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:206)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:246)
	at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:301)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:304)
	at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:360)
	at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:383)
	at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:144)
	at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:235)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
Caused by: java.lang.ClassNotFoundException: org.eclipse.xtext.xbase.testing.InMemoryJavaCompiler cannot be found by org.xtext.example.mydsl_1.0.0.qualifier
	at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:461)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:372)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:364)
	at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:161)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	... 25 more

!ENTRY org.eclipse.jface 2 0 2017-03-03 10:09:49.860
!MESSAGE Keybinding conflicts occurred.  They may interfere with normal accelerator operation.
!SUBENTRY 1 org.eclipse.jface 2 0 2017-03-03 10:09:49.861
!MESSAGE A conflict occurred for ALT+CTRL+H:
Binding(ALT+CTRL+H,
	ParameterizedCommand(Command(org.eclipse.jdt.ui.edit.text.java.open.call.hierarchy,Open Call Hierarchy,
		Open a call hierarchy on the selected element,
		Category(org.eclipse.ui.category.navigate,Navigate,null,true),
		org.eclipse.ui.internal.WorkbenchHandlerServiceHandler@4a0e955,
		,,true),null),
	org.eclipse.ui.defaultAcceleratorConfiguration,
	org.eclipse.ui.contexts.window,,,system)
Binding(ALT+CTRL+H,
	ParameterizedCommand(Command(org.eclipse.xtext.xbase.ui.hierarchy.OpenCallHierarchy,Open Call Hierarchy,
		Open a call hierarchy on the selected element,
		Category(org.eclipse.core.commands.categories.autogenerated,Uncategorized,Commands that were either auto-generated or have no category,true),
		org.eclipse.ui.internal.WorkbenchHandlerServiceHandler@117ea0cf,
		,,true),null),
	org.eclipse.ui.defaultAcceleratorConfiguration,
	org.eclipse.xtext.ui.XtextEditorScope,,,system)
Binding(ALT+CTRL+H,
	ParameterizedCommand(Command(org.eclipse.xtext.ui.editor.OpenCallHierarchy,Open Call Hierarchy,
		Open call hierarchy for the selected element,
		Category(org.eclipse.ui.category.navigate,Navigate,null,true),
		org.eclipse.ui.internal.WorkbenchHandlerServiceHandler@57dbd55d,
		,,true),null),
	org.eclipse.ui.defaultAcceleratorConfiguration,
	org.eclipse.xtext.ui.XtextEditorScope,,,system)

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755436 is a reply to message #1755427]

Fri, 03 March 2017 05:54

Eclipse User

yes i did but with xtext 2.11 ?!? did you switch?
did you add the plugin to your runtime/feature/.... (i dont know how you start your runtime eclipse make sure the plugin is picked up)

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755457 is a reply to message #1755436]

Fri, 03 March 2017 09:05

Eclipse User

i use xtext 2.10 , and witch plugin did you mean ?

[Updated on: Fri, 03 March 2017 09:12] by Moderator

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755459 is a reply to message #1755457]

Fri, 03 March 2017 09:16

Eclipse User

in xtext 2.10 !?! there is no testing. it is xbase.junit and the import is different

org.eclipse.xtext.xbase.compiler.InMemoryJavaCompiler

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755460 is a reply to message #1755459]

Fri, 03 March 2017 09:25

Eclipse User

I should update xtext to 2.11.0 for importing org.eclipse.xtext.xbase.testing . so the pervious error for xtext version , and what about this version is there other class for run method main ?

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755461 is a reply to message #1755460]

Fri, 03 March 2017 09:28

Eclipse User

as i said: there is a feature like organzie imports that should help you discover

- xtext 2.4.3 : OnTheFlyJavaCompiler
- xtext 2.10.0: org.eclipse.xtext.xbase.compiler.InMemoryJavaCompiler
- xtext 2.11.0: org.eclipse.xtext.xbase.testing.InMemoryJavaCompiler

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755466 is a reply to message #1755461]

Fri, 03 March 2017 09:46

Eclipse User

I don't have org.eclipse.xtext.xbase.compiler.InMemoryJavaCompiler in xtext 2.10.0 where i found it

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755467 is a reply to message #1755466]

Fri, 03 March 2017 09:47

Eclipse User

did you add org.eclipse.xtext.xbase.junit to the dependencies?

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755538 is a reply to message #1755467]

Sun, 05 March 2017 05:36

Eclipse User

Hi Christian Dietrich Thanks for your answer , it's work in Xtext 2.10.0 but where i find the package a and the class Hello.java it's not in the package src-gen .

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755541 is a reply to message #1755538]

Sun, 05 March 2017 06:21

Eclipse User

i dont understand that ?!?!?!?!?!?!?!?!?

you are the guy that generates file and you are the guy that generates it to a directory.

fsa.generateFile(name, content)

in my example i simpy take the class name and the content and compile it.
i dont generate any file. i thought that was OBVIOUS !?!?!?!?!.

i dont care about the generated files. i simply execute them.

=> Your jub is to implement the generator and do the calling. it is not mine.

[Updated on: Sun, 05 March 2017 06:28] by Moderator

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755551 is a reply to message #1755541]

Sun, 05 March 2017 11:36

Eclipse User

I want to put the class java in my directory how to put it in pervious code .

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755552 is a reply to message #1755551]

Sun, 05 March 2017 11:53

Eclipse User

Don't understand please explain

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755554 is a reply to message #1755552]

Sun, 05 March 2017 12:08

Eclipse User

In this Code i want to put the class java in my pc like this

val cl = DDslGenerator.classLoader
		println(cl)
		val InMemoryJavaCompiler compiler = 
		new InMemoryJavaCompiler(cl, JavaVersion.JAVA7)
		val result = compiler.compile(new JavaSource(
			[b]"D:/New folder/a/Hello.java",[/b]
			'''
				package a; 
				public class Hello {
					public static void main(String[] args) {
						System.out.println("Hello Dynamic");
					}
				}
			'''
		))
		val Class<?> mainClazz = result.classLoader.loadClass("a.Hello")
		val Method mainMethod = mainClazz.getMethod("main", typeof(String[]));
		val String[] args = #[]
		mainMethod.invoke(null,#[args])

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755555 is a reply to message #1755554]

Sun, 05 March 2017 12:11

Eclipse User

once again:

GENARATION and EXECUTION have ZERO!!!!!!! in common.

you abuse the igenrator to find a place to execute
and you abuse the compiler class from test to execute

you should not use absolute file nams there.
the i generator is ment to generate to the project.
why is this a problem now?
if you want to generate somewhere else please use normal java file io means

if you want to generate files which has nothing todo with executing !!!!!
!!!!
!!!
!!!!
then use filesystemaccess

[Updated on: Sun, 05 March 2017 12:14] by Moderator

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755556 is a reply to message #1755555]

Sun, 05 March 2017 12:22

Eclipse User

i mean the class Home.java that has method main is not in my PC ,i want to create java class method main .

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755557 is a reply to message #1755556]

Sun, 05 March 2017 12:26

Eclipse User

Yes but you said you had implemented the generator before
Didn't you

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755558 is a reply to message #1755557]

Sun, 05 March 2017 12:35

Eclipse User

yes i want to generate files which has nothing todo with executing to generate files which has nothing todo with executing , i want just to excute method main to call other classs java in IGenerator

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755559 is a reply to message #1755558]

Sun, 05 March 2017 12:36

Eclipse User

I don't understand. Simply call it. .....

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755560 is a reply to message #1755559]

Sun, 05 March 2017 12:37

Eclipse User

Where does the class come from.

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755561 is a reply to message #1755560]

Sun, 05 March 2017 12:45

Eclipse User

I have a class java in specific folder has a method main , then in myDSLIgenerator i want run the pervious class java has method main that's it .

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755562 is a reply to message #1755561]

Sun, 05 March 2017 12:51

Eclipse User

Do you have a .java or a .class file

If it is a .classfile then it would be easiest to put in the classpath of the mydsl project
Package it in a jar file. Copy the jar file to the mydsl project (e.g. Create a lib folder)
Adapt build.properties to include lib folder. Adapt manifest to add Lib/xxx.jar
To the classpath
http://stackoverflow.com/questions/8387359/external-jars-in-eclipse-plug-in

Or you use urlclassloader to load the class file

If it is a Java source file only you already have to tools
Simply use Java to read the file and then call the execute we discussed before

Or you use it as

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755564 is a reply to message #1755562]

Sun, 05 March 2017 13:38

Eclipse User

it's .java file , I try to read a file to the pervious class Hello.java but i found errors

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755565 is a reply to message #1755564]

Sun, 05 March 2017 13:45

Eclipse User

???

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755622 is a reply to message #1755565]

Mon, 06 March 2017 06:27

Eclipse User

I don't find any solution , for calling my other class in diffrent directory in the pervious code has method main, if you have the solution about it please help me.

Re: How to run automatically generated java file has a method main in Xtext generator ? [message #1755625 is a reply to message #1755622]

Mon, 06 March 2017 06:33

Eclipse User

i still dont understand what your problem is. please how your code

Previous Topic:	After Update to 2.11: Encoding Problem
Next Topic:	A slot with name 'uml-gen' has not been configured exception

Goto Forum:

-=] Back to Top [=-

Current Time: Mon Apr 28 19:32:12 EDT 2025

.:: Contact :: Home ::.

Breadcrumbs

Sign up to our Newsletter