Building-Headless-RCP-XText-Application:-Part-II.md

-TODO
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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
+	}
+}
+
+```
+
+```Java
+
+mport java.io.File;
+import java.util.List;
+
+
+import com.google.inject.Inject;
+import com.google.inject.Injector;
+import com.google.inject.Provider;
+
+import org.eclipse.emf.common.util.URI;
+import org.eclipse.emf.ecore.resource.Resource;
+import org.eclipse.emf.ecore.resource.ResourceSet;
+import org.eclipse.xtext.generator.GeneratorContext;
+import org.eclipse.xtext.generator.GeneratorDelegate;
+import org.eclipse.xtext.generator.JavaIoFileSystemAccess;
+import org.eclipse.xtext.util.CancelIndicator;
+import org.eclipse.xtext.validation.CheckMode;
+import org.eclipse.xtext.validation.IResourceValidator;
+import org.eclipse.xtext.validation.Issue;
+import org.xtext.example.mydsl.MyDslStandaloneSetup;
+import org.xtext.example.mydsl.generator.MyDslGenerator;
+
+public class MyGenerator {
+
+    @Inject
+    private Provider<ResourceSet> resourceSetProvider;
+
+    @Inject
+    private IResourceValidator validator;
+
+   
+
+    @Inject
+    private JavaIoFileSystemAccess fileAccess;
+
+    public static void execute(String path) {
+        final Injector injector = new MyDslStandaloneSetup().createInjectorAndDoEMFRegistration();
+        final MyGenerator main = injector.getInstance(MyGenerator.class);
+        main.runGenerator(path);
+
+    }
+
+    protected void runGenerator(String path) {
+        // Load the resources
+        final ResourceSet resourceSet = this.resourceSetProvider.get();
+        
+        final Resource resource = resourceSet.getResource(URI.createFileURI(path),
+                true);
+
+        // Validate the resource
+        final List<Issue> list = this.validator.validate(resource, CheckMode.ALL, CancelIndicator.NullImpl);
+        if (!list.isEmpty()) {
+            for (final Issue issue : list) {
+                System.err.println(issue);
+            }
+            return;
+        }
+
+        MyDslGenerator myDslGenerator = new MyDslGenerator();
+		// Configure and start the generator
+        myDslGenerator.doGenerate(resource, this.fileAccess, null);
+
+        System.out.println("Code generation finished.");
+    }
+}
+
+```
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