| a specific extension to parse a textual model [message #657584] |
Thu, 03 March 2011 11:16  |
 Fy Za
Messages: 245
Registered: March 2010 |
Senior Member |
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Hi All,
I have this code that parses my textual model to an xmi model
package model;
import java.io.IOException;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.ecore.resource.ResourceSet;
import org.eclipse.emf.ecore.resource.impl.ResourceSetImpl;
import org.xtext.example.PrescenarioStandaloneSetup;
public class Main {
public static void main(String[] args) throws IOException {
PrescenarioStandaloneSetup.doSetup();
ResourceSet resourceSet = new ResourceSetImpl();
Resource resource = resourceSet.createResource(URI.createURI("src/model/a.scn"));
resource.load(null);
Resource resourceAsXmi = resourceSet.createResource(URI.createURI("src/model/aaa.xmi"));
resourceAsXmi.getContents().addAll(resource.getContents());
resourceAsXmi.save(null);
}
}
now, I 'd like to change the xmi extension with my specific extension ".prescenario"
yet, I had a specific editor (in Example EMF model Creation wizards) generated from an EMF project that support this extension.
but when I change the extension , I have this exception Exception in thread "main" java.lang.NullPointerException
at model.Main.main(Main.java:27)
please help my
thanks
[Updated on: Thu, 03 March 2011 11:17] Report message to a moderator |
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| Re: a specific extension after parsing an [message #657842 is a reply to message #657820] |
Fri, 04 March 2011 10:16  |
Sebastian Zarnekow
Messages: 3118
Registered: July 2009 |
Senior Member |
|
|
Hi Faiez,
override the register(Injector) method of the
PrescenarioStandaloneSetupGenerated in PrescenarioStandaloneSetup and
add lines like
Resource.Factory.Registry.INSTANCE.getExtensionToFactoryMap( ).put(
"prescenario", PrescenarioFactory.eINSTANCE).
Please look at the plugin.xml of the project that contains the model
code that was produced from the EMF model creation wizard for the exact
class name of the EPackage and the EFactory.
The EMF book will provide a lot more insight in these mechanisms.
Hope that helps,
Sebastian
--
Need professional support for Eclipse Modeling?
Go visit: http://xtext.itemis.com
Am 04.03.11 09:54, schrieb Faiez:
> Hi Sebastian,
> How can I register resource Factory ?
> In what class ?
> In what project(EMF project or xtext project )?
> this is my PrescenarioStandaloneSetup class in xtext project.
> as you see, my textual extension is .scn
> I 'd define the model extension after parsing the textual model (by
> default .xmi)
>
>
> package org.xtext.example;
>
> import org.eclipse.emf.ecore.EPackage;
> import org.eclipse.xtext.ISetup;
> import org.eclipse.emf.ecore.resource.Resource;
>
> import com.google.inject.Guice;
> import com.google.inject.Injector;
>
> /**
> * Generated from StandaloneSetup.xpt!
> */
> @SuppressWarnings("all")
> public class PrescenarioStandaloneSetupGenerated implements ISetup {
>
> public Injector createInjectorAndDoEMFRegistration() {
> org.eclipse.xtext.common.TerminalsStandaloneSetup.doSetup();
>
> Injector injector = createInjector();
> register(injector);
> return injector;
> }
>
> public Injector createInjector() {
> return Guice.createInjector(new
> org.xtext.example.PrescenarioRuntimeModule());
> }
>
> public void register(Injector injector) {
> if
> (!EPackage.Registry.INSTANCE.containsKey("http://www.xtext.org/example/Prescenario"))
> {
> EPackage.Registry.INSTANCE.put("http://www.xtext.org/example/Prescenario",
> org.xtext.example.prescenario.PrescenarioPackage.eINSTANCE);
> }
>
> org.eclipse.xtext.resource.IResourceFactory resourceFactory =
> injector.getInstance(org.eclipse.xtext.resource.IResourceFac tory.class);
> org.eclipse.xtext.resource.IResourceServiceProvider serviceProvider =
> injector.getInstance(org.eclipse.xtext.resource.IResourceSer viceProvider.class);
>
> Resource.Factory.Registry.INSTANCE.getExtensionToFactoryMap( ).put( "scn",
> resourceFactory);
> org.eclipse.xtext.resource.IResourceServiceProvider.Registry .INSTANCE.getExtensionToFactoryMap().put( "scn",
> serviceProvider);
>
>
>
>
>
> }
> }
>
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| Re: a specific extension after parsing an [message #657900 is a reply to message #657842] |
Fri, 04 March 2011 14:48 |
Fy Za
Messages: 245
Registered: March 2010 |
Senior Member |
|
|
Hi Sebastian,
this is the plugin.xml
<?xml version="1.0" encoding="UTF-8"?>
<?eclipse version="3.0"?>
<!--
<copyright>
</copyright>
$Id$
-->
<plugin>
<extension point="org.eclipse.emf.ecore.generated_package">
<package
uri="http://www.xtext.org/example/Prescenario"
class="prescenario.PrescenarioPackage"
genModel="model/Prescenario.genmodel"/>
</extension>
</plugin>
I add this line
Resource.Factory.Registry.INSTANCE.getExtensionToFactoryMap( ).put("prescenario", prescenario.PrescenarioPackage.eINSTANCE);
in the injector class that will be
package org.xtext.example;
import org.eclipse.emf.ecore.EPackage;
import org.eclipse.xtext.ISetup;
import org.eclipse.emf.ecore.resource.Resource;
import com.google.inject.Guice;
import com.google.inject.Injector;
/**
* Generated from StandaloneSetup.xpt!
*/
@SuppressWarnings("all")
public class PrescenarioStandaloneSetupGenerated implements ISetup {
public Injector createInjectorAndDoEMFRegistration() {
org.eclipse.xtext.common.TerminalsStandaloneSetup.doSetup();
Injector injector = createInjector();
register(injector);
return injector;
}
public Injector createInjector() {
return Guice.createInjector(new org.xtext.example.PrescenarioRuntimeModule());
}
public void register(Injector injector) {
if (!EPackage.Registry.INSTANCE.containsKey("http://www.xtext.org/example/Prescenario")) {
EPackage.Registry.INSTANCE.put("http://www.xtext.org/example/Prescenario", org.xtext.example.prescenario.PrescenarioPackage.eINSTANCE);
}
org.eclipse.xtext.resource.IResourceFactory resourceFactory = injector.getInstance(org.eclipse.xtext.resource.IResourceFactory.class);
org.eclipse.xtext.resource.IResourceServiceProvider serviceProvider = injector.getInstance(org.eclipse.xtext.resource.IResourceServiceProvider.class);
Resource.Factory.Registry.INSTANCE.getExtensionToFactoryMap().put("scn", resourceFactory);
org.eclipse.xtext.resource.IResourceServiceProvider.Registry.INSTANCE.getExtensionToFactoryMap().put("scn", serviceProvider);
Resource.Factory.Registry.INSTANCE.getExtensionToFactoryMap( ).put("prescenario", prescenario.PrescenarioPackage.eINSTANCE);
}
}
but when I 'd parse my .scn file with this code
package model;
import java.io.IOException;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.ecore.resource.ResourceSet;
import org.eclipse.emf.ecore.resource.impl.ResourceSetImpl;
import org.xtext.example.PrescenarioStandaloneSetup;
public class Main {
public static void main(String[] args) throws IOException {
PrescenarioStandaloneSetup.doSetup();
ResourceSet resourceSet = new ResourceSetImpl();
Resource resource = resourceSet.createResource(URI.createURI("src/model/a.scn"));
resource.load(null);
Resource resourceAsXmi = resourceSet.createResource(URI.createURI("src/model/zzz.prescenario"));
resourceAsXmi.getContents().addAll(resource.getContents());
resourceAsXmi.save(null);
}
}
I find this error
java.lang.ClassCastException: org.xtext.example.prescenario.impl.PrescenarioFactoryImpl cannot be cast to prescenario.PrescenarioFactory
at prescenario.impl.PrescenarioFactoryImpl.init(PrescenarioFactoryImpl.java:34)
at prescenario.PrescenarioFactory.<clinit>(PrescenarioFactory.java:26)
at prescenario.impl.PrescenarioPackageImpl.<init>(PrescenarioPackageImpl.java:98)
at prescenario.impl.PrescenarioPackageImpl.init(PrescenarioPackageImpl.java:124)
at prescenario.PrescenarioPackage.<clinit>(PrescenarioPackage.java:60)
at org.xtext.example.PrescenarioStandaloneSetupGenerated.register(PrescenarioStandaloneSetupGenerated.java:38)
at org.xtext.example.PrescenarioStandaloneSetupGenerated.createInjectorAndDoEMFRegistration(PrescenarioStandaloneSetupGenerated.java:21)
at org.xtext.example.PrescenarioStandaloneSetup.doSetup(PrescenarioStandaloneSetup.java:11)
at model.Main.main(Main.java:22)
Exception in thread "main" java.lang.ClassCastException: prescenario.impl.PrescenarioPackageImpl cannot be cast to org.eclipse.emf.ecore.resource.Resource$Factory
at org.eclipse.emf.ecore.resource.impl.ResourceFactoryRegistryImpl.convert(ResourceFactoryRegistryImpl.java:100)
at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl$2.delegatedGetFactory(ResourceSetImpl.java:449)
at org.eclipse.emf.ecore.resource.impl.ResourceFactoryRegistryImpl.getFactory(ResourceFactoryRegistryImpl.java:151)
at org.eclipse.emf.ecore.resource.impl.ResourceFactoryRegistryImpl.getFactory(ResourceFactoryRegistryImpl.java:92)
at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.createResource(ResourceSetImpl.java:422)
at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.createResource(ResourceSetImpl.java:414)
at model.Main.main(Main.java:26)
please help me.
thanks
[Updated on: Fri, 04 March 2011 14:50] Report message to a moderator |
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| Re: a specific extension after parsing an [message #657914 is a reply to message #657900] |
Fri, 04 March 2011 15:17 |
Sebastian Zarnekow
Messages: 3118
Registered: July 2009 |
Senior Member |
|
|
Hi Faiez,
you'll to register a factory and the package in this line:
Instead of
Resource.Factory.Registry.INSTANCE.getExtensionToFactoryMap(
).put("prescenario", prescenario.PrescenarioPackage.eINSTANCE);
you'll have to use
Resource.Factory.Registry.INSTANCE.getExtensionToFactoryMap(
).put("prescenario", prescenario.PrescenarioFactory.eINSTANCE);
Regards,
Sebastian
--
Need professional support for Eclipse Modeling?
Go visit: http://xtext.itemis.com
Am 04.03.11 15:48, schrieb Faiez:
> Hi Sebastian,
> this is the plugin.xml
> <?xml version="1.0" encoding="UTF-8"?>
> <?eclipse version="3.0"?>
>
> <!--
> <copyright>
> </copyright>
>
> $Id$
> -->
> <plugin>
>
> <extension point="org.eclipse.emf.ecore.generated_package">
> <package
> uri="http://www.xtext.org/example/Prescenario"
> class="prescenario.PrescenarioPackage"
> genModel="model/Prescenario.genmodel"/>
> </extension>
>
> </plugin>
>
> I add this line
> Resource.Factory.Registry.INSTANCE.getExtensionToFactoryMap(
> ).put("prescenario", prescenario.PrescenarioPackage.eINSTANCE);
>
>
> in the injector class that will be
>
> package org.xtext.example;
>
> import org.eclipse.emf.ecore.EPackage;
> import org.eclipse.xtext.ISetup;
> import org.eclipse.emf.ecore.resource.Resource;
> import com.google.inject.Guice;
> import com.google.inject.Injector;
>
> /**
> * Generated from StandaloneSetup.xpt!
> */
> @SuppressWarnings("all")
> public class PrescenarioStandaloneSetupGenerated implements ISetup {
>
> public Injector createInjectorAndDoEMFRegistration() {
> org.eclipse.xtext.common.TerminalsStandaloneSetup.doSetup();
>
> Injector injector = createInjector();
> register(injector);
> return injector;
> }
>
> public Injector createInjector() {
> return Guice.createInjector(new
> org.xtext.example.PrescenarioRuntimeModule());
> }
>
> public void register(Injector injector) {
> if
> (!EPackage.Registry.INSTANCE.containsKey("http://www.xtext.org/example/Prescenario"))
> {
> EPackage.Registry.INSTANCE.put("http://www.xtext.org/example/Prescenario",
> org.xtext.example.prescenario.PrescenarioPackage.eINSTANCE);
> }
>
> org.eclipse.xtext.resource.IResourceFactory resourceFactory =
> injector.getInstance(org.eclipse.xtext.resource.IResourceFac tory.class);
> org.eclipse.xtext.resource.IResourceServiceProvider serviceProvider =
> injector.getInstance(org.eclipse.xtext.resource.IResourceSer viceProvider.class);
>
> Resource.Factory.Registry.INSTANCE.getExtensionToFactoryMap( ).put( "scn",
> resourceFactory);
> org.eclipse.xtext.resource.IResourceServiceProvider.Registry .INSTANCE.getExtensionToFactoryMap().put( "scn",
> serviceProvider);
> Resource.Factory.Registry.INSTANCE.getExtensionToFactoryMap(
> ).put("prescenario", prescenario.PrescenarioPackage.eINSTANCE);
>
>
> }
> }
>
> but when I 'd parse my .scn file with this code
> package model;
>
>
>
>
>
> import java.io.IOException;
>
> import org.eclipse.emf.common.util.URI;
> import org.eclipse.emf.ecore.resource.Resource;
> import org.eclipse.emf.ecore.resource.ResourceSet;
> import org.eclipse.emf.ecore.resource.impl.ResourceSetImpl;
> import org.xtext.example.PrescenarioStandaloneSetup;
>
>
>
>
>
> public class Main {
>
> public static void main(String[] args) throws IOException {
> PrescenarioStandaloneSetup.doSetup();
> ResourceSet resourceSet = new ResourceSetImpl();
> Resource resource =
> resourceSet.createResource(URI.createURI("src/model/a.scn"));
> resource.load(null);
> Resource resourceAsXmi =
> resourceSet.createResource(URI.createURI("src/model/zzz.prescenario "));
> resourceAsXmi.getContents().addAll(resource.getContents());
> resourceAsXmi.save(null);
> }
>
> }
>
> I find this error
> java.lang.ClassCastException:
> org.xtext.example.prescenario.impl.PrescenarioFactoryImpl cannot be cast
> to prescenario.PrescenarioFactory
> at
> prescenario.impl.PrescenarioFactoryImpl.init(PrescenarioFact oryImpl.java:34)
>
> at prescenario.PrescenarioFactory.<clinit>(PrescenarioFactory.java:26)
> at
> prescenario.impl.PrescenarioPackageImpl.<init>(PrescenarioPackageImpl.java:98)
>
> at
> prescenario.impl.PrescenarioPackageImpl.init(PrescenarioPack ageImpl.java:124)
>
> at prescenario.PrescenarioPackage.<clinit>(PrescenarioPackage.java:60)
> at
> org.xtext.example.PrescenarioStandaloneSetupGenerated.regist er(PrescenarioStandaloneSetupGenerated.java:38)
>
> at
> org.xtext.example.PrescenarioStandaloneSetupGenerated.create InjectorAndDoEMFRegistration(PrescenarioStandaloneSetupGener ated.java:21)
>
> at
> org.xtext.example.PrescenarioStandaloneSetup.doSetup(Prescen arioStandaloneSetup.java:11)
>
> at model.Main.main(Main.java:22)
> Exception in thread "main" java.lang.ClassCastException:
> prescenario.impl.PrescenarioPackageImpl cannot be cast to
> org.eclipse.emf.ecore.resource.Resource$Factory
> at
> org.eclipse.emf.ecore.resource.impl.ResourceFactoryRegistryI mpl.convert(ResourceFactoryRegistryImpl.java:100)
>
> at
> org.eclipse.emf.ecore.resource.impl.ResourceSetImpl$2.delega tedGetFactory(ResourceSetImpl.java:449)
>
> at
> org.eclipse.emf.ecore.resource.impl.ResourceFactoryRegistryI mpl.getFactory(ResourceFactoryRegistryImpl.java:151)
>
> at
> org.eclipse.emf.ecore.resource.impl.ResourceFactoryRegistryI mpl.getFactory(ResourceFactoryRegistryImpl.java:92)
>
> at
> org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.createRe source(ResourceSetImpl.java:422)
>
> at
> org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.createRe source(ResourceSetImpl.java:414)
>
> at model.Main.main(Main.java:26)
>
>
> please help me.
> thanks
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