grammar org.xtext.example.mydsl.MyDsl with org.eclipse.xtext.common.Terminals

generate myDsl "http://www.xtext.org/example/mydsl/MyDsl"

Model:
	greetings+=Greeting*;
	
Greeting:
	'Hello' name=ID '!';

package popup.action;

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.util.EcoreUtil;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.xtext.resource.XtextResourceSet;

public class XMIReader {

	public static void convertXMI2DSL(String filePath, Shell shell) {

		// Create a new resource set
	    ResourceSet resourceSet = new XtextResourceSet();

	    // Create a URI from the XMI file path
	    URI xmiUri = URI.createFileURI(filePath);

	    // Load the XMI file into the resource set
	    Resource xmiResource = resourceSet.getResource(xmiUri, true);

	    // Resolve all references
	    EcoreUtil.resolveAll(resourceSet);

	    // Create a URI for the DSL file
	    URI dslUri = URI.createURI(xmiUri.trimFileExtension().toString() + ".mydsl");

	    // Create a new DSL resource
	    Resource dslResource = resourceSet.createResource(dslUri);

	    // Add the contents of the XMI resource to the DSL resource
	    dslResource.getContents().addAll(xmiResource.getContents());

	    try {
	        // Save the DSL resource
	        dslResource.save(null);
	    } catch (IOException e) {
	        e.printStackTrace();
	    }
    }
}

<?xml version="1.0" encoding="ASCII"?>
<myDsl:Model xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:myDsl="http://www.xtext.org/example/mydsl/MyDsl">
  <greetings name="Alex"/>
  <greetings name="John"/>
</myDsl:Model>