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Update Building Headless RCP XText Application: Part II
authored
May 08, 2022
by
Serafim Simonov
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Building-Headless-RCP-XText-Application:-Part-II.md
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# Create Logic
```
Java
package org.xtext.example.mydsl.cli;
import com.google.inject.Inject;
import com.google.inject.Injector;
import com.google.inject.Provider;
import java.util.Map;
import org.eclipse.emf.ecore.resource.ResourceSet;
import org.eclipse.equinox.app.IApplication;
import org.eclipse.equinox.app.IApplicationContext;
import org.eclipse.xtext.generator.GeneratorDelegate;
import org.eclipse.xtext.generator.JavaIoFileSystemAccess;
import org.eclipse.xtext.validation.IResourceValidator;
import org.xtext.example.mydsl.MyDslStandaloneSetup;
/**
* This class controls all aspects of the application's execution
*/
public class Application implements IApplication {
@Inject
private Provider<ResourceSet> resourceSetProvider;
@Inject
private IResourceValidator validator;
@Inject
private GeneratorDelegate generator;
@Inject
private JavaIoFileSystemAccess fileAccess;
@Override
public Object start(IApplicationContext context) throws Exception {
final Map<?, ?> args = context.getArguments();
final String[] appArgs = (String[]) args.get("application.args");
final Injector injector = new MyDslStandaloneSetup().createInjectorAndDoEMFRegistration();
System.out.println("Hello");
MyGenerator.execute(appArgs[1]);
return IApplication.EXIT_OK;
}
@Override
public void stop() {
// nothing to do
}
}
```
1.
Create class
`MyGenerator`
in
`org.xtext.example.mydsl.cli`
```
Java
mport java.io.File;
i
mport java.io.File;
import java.util.List;
...
...
@@ -122,3 +69,58 @@ public class MyGenerator {
}
```
2.
Change the implementaiton of the Application class like shown below.
```
Java
package org.xtext.example.mydsl.cli;
import com.google.inject.Inject;
import com.google.inject.Injector;
import com.google.inject.Provider;
import java.util.Map;
import org.eclipse.emf.ecore.resource.ResourceSet;
import org.eclipse.equinox.app.IApplication;
import org.eclipse.equinox.app.IApplicationContext;
import org.eclipse.xtext.generator.GeneratorDelegate;
import org.eclipse.xtext.generator.JavaIoFileSystemAccess;
import org.eclipse.xtext.validation.IResourceValidator;
import org.xtext.example.mydsl.MyDslStandaloneSetup;
/**
* This class controls all aspects of the application's execution
*/
public class Application implements IApplication {
@Inject
private Provider<ResourceSet> resourceSetProvider;
@Inject
private IResourceValidator validator;
@Inject
private GeneratorDelegate generator;
@Inject
private JavaIoFileSystemAccess fileAccess;
@Override
public Object start(IApplicationContext context) throws Exception {
final Map<?, ?> args = context.getArguments();
final String[] appArgs = (String[]) args.get("application.args");
final Injector injector = new MyDslStandaloneSetup().createInjectorAndDoEMFRegistration();
System.out.println("Hello");
MyGenerator.execute(appArgs[1]);
return IApplication.EXIT_OK;
}
@Override
public void stop() {
// nothing to do
}
}
```
