diff --git a/plugins/org.etsi.mts.tdl.openapi.generator.ui/.classpath b/plugins/org.etsi.mts.tdl.openapi.generator.ui/.classpath
new file mode 100644
index 0000000000000000000000000000000000000000..e801ebfb4680123285c15553dc70584276fe0057
--- /dev/null
+++ b/plugins/org.etsi.mts.tdl.openapi.generator.ui/.classpath
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+ <classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
+ <classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
+ <classpathentry kind="src" path="src"/>
+ <classpathentry kind="output" path="bin"/>
+</classpath>
diff --git a/plugins/org.etsi.mts.tdl.openapi.generator.ui/.project b/plugins/org.etsi.mts.tdl.openapi.generator.ui/.project
new file mode 100644
index 0000000000000000000000000000000000000000..91de69b2746fd27596b052ece51cc0bea8fc1ee5
--- /dev/null
+++ b/plugins/org.etsi.mts.tdl.openapi.generator.ui/.project
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+ <name>org.etsi.mts.tdl.openapi.generator.ui</name>
+ <comment></comment>
+ <projects>
+ </projects>
+ <buildSpec>
+ <buildCommand>
+ <name>org.eclipse.jdt.core.javabuilder</name>
+ <arguments>
+ </arguments>
+ </buildCommand>
+ <buildCommand>
+ <name>org.eclipse.pde.ManifestBuilder</name>
+ <arguments>
+ </arguments>
+ </buildCommand>
+ <buildCommand>
+ <name>org.eclipse.pde.SchemaBuilder</name>
+ <arguments>
+ </arguments>
+ </buildCommand>
+ </buildSpec>
+ <natures>
+ <nature>org.eclipse.pde.PluginNature</nature>
+ <nature>org.eclipse.jdt.core.javanature</nature>
+ </natures>
+</projectDescription>
diff --git a/plugins/org.etsi.mts.tdl.openapi.generator.ui/.settings/org.eclipse.jdt.core.prefs b/plugins/org.etsi.mts.tdl.openapi.generator.ui/.settings/org.eclipse.jdt.core.prefs
new file mode 100644
index 0000000000000000000000000000000000000000..7adc0fb9a0d32bd6b4e3ce6f305ab7165208865c
--- /dev/null
+++ b/plugins/org.etsi.mts.tdl.openapi.generator.ui/.settings/org.eclipse.jdt.core.prefs
@@ -0,0 +1,10 @@
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/plugins/org.etsi.mts.tdl.openapi.generator.ui/META-INF/MANIFEST.MF b/plugins/org.etsi.mts.tdl.openapi.generator.ui/META-INF/MANIFEST.MF
new file mode 100644
index 0000000000000000000000000000000000000000..38138a204367b1b265d956248af57b42cd88de9f
--- /dev/null
+++ b/plugins/org.etsi.mts.tdl.openapi.generator.ui/META-INF/MANIFEST.MF
@@ -0,0 +1,15 @@
+Manifest-Version: 1.0
+Bundle-ManifestVersion: 2
+Bundle-Name: OpenAPI Generator Wrapper UI
+Bundle-SymbolicName: org.etsi.mts.tdl.openapi.generator.ui;singleton:=true
+Bundle-Version: 1.0.0.qualifier
+Bundle-Activator: org.etsi.mts.tdl.openapi.generator.ui.Activator
+Require-Bundle: org.eclipse.ui,
+ org.eclipse.core.runtime,
+ org.eclipse.core.resources,
+ org.eclipse.ui.editors;bundle-version="3.5.0",
+ org.eclipse.ui.ide;bundle-version="3.5.0",
+ org.eclipse.ui.workbench,
+ org.etsi.mts.tdl.openapi.generator.wrapper
+Bundle-ActivationPolicy: lazy
+Import-Package: org.eclipse.emf.common.util
diff --git a/plugins/org.etsi.mts.tdl.openapi.generator.ui/build.properties b/plugins/org.etsi.mts.tdl.openapi.generator.ui/build.properties
new file mode 100644
index 0000000000000000000000000000000000000000..0d3d3a745d49c12500fb77bdc372b76e8bf624de
--- /dev/null
+++ b/plugins/org.etsi.mts.tdl.openapi.generator.ui/build.properties
@@ -0,0 +1,6 @@
+source.. = src/
+output.. = bin/
+bin.includes = plugin.xml,\
+ META-INF/,\
+ .,\
+ icons/
diff --git a/plugins/org.etsi.mts.tdl.openapi.generator.ui/icons/TransformIcon.png b/plugins/org.etsi.mts.tdl.openapi.generator.ui/icons/TransformIcon.png
new file mode 100644
index 0000000000000000000000000000000000000000..6b23bd6a60b0c2362a07da1a44e16f8c6a66926c
Binary files /dev/null and b/plugins/org.etsi.mts.tdl.openapi.generator.ui/icons/TransformIcon.png differ
diff --git a/plugins/org.etsi.mts.tdl.openapi.generator.ui/icons/TranslateIcon.png b/plugins/org.etsi.mts.tdl.openapi.generator.ui/icons/TranslateIcon.png
new file mode 100644
index 0000000000000000000000000000000000000000..555d9f2a5ad5bd079bb41a2d952dc7adfb8939e1
Binary files /dev/null and b/plugins/org.etsi.mts.tdl.openapi.generator.ui/icons/TranslateIcon.png differ
diff --git a/plugins/org.etsi.mts.tdl.openapi.generator.ui/icons/sample.gif b/plugins/org.etsi.mts.tdl.openapi.generator.ui/icons/sample.gif
new file mode 100644
index 0000000000000000000000000000000000000000..34fb3c9d8cb7d489681b7f7aee4bdcd7eaf53610
Binary files /dev/null and b/plugins/org.etsi.mts.tdl.openapi.generator.ui/icons/sample.gif differ
diff --git a/plugins/org.etsi.mts.tdl.openapi.generator.ui/plugin.xml b/plugins/org.etsi.mts.tdl.openapi.generator.ui/plugin.xml
new file mode 100644
index 0000000000000000000000000000000000000000..701e6dee7064bc6ba51b422b9e2bfe423abf6fd1
--- /dev/null
+++ b/plugins/org.etsi.mts.tdl.openapi.generator.ui/plugin.xml
@@ -0,0 +1,54 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<?eclipse version="3.4"?>
+<plugin>
+
+ <extension
+ point="org.eclipse.ui.commands">
+ <category
+ name="TDL"
+ id="org.etsi.mts.tdl.openapi.generator.ui.commands.category">
+ </category>
+ <command
+ name="OpenAPI Generate target implementation"
+ categoryId="org.etsi.mts.tdl.openapi.generator.ui.commands.category"
+ id="org.etsi.mts.tdl.openapi.generator.ui.commands.generateCommand">
+ </command>
+ </extension>
+ <extension
+ point="org.eclipse.ui.handlers">
+ <handler
+ commandId="org.etsi.mts.tdl.openapi.generator.ui.commands.generateCommand"
+ class="org.etsi.mts.tdl.openapi.generator.ui.handlers.GeneratorHandler">
+ </handler>
+ </extension>
+ <extension
+ point="org.eclipse.ui.menus">
+ <menuContribution
+ locationURI="menu:org.eclipse.ui.main.menu?after=additions">
+ <menu
+ label="TDL"
+ mnemonic="X"
+ id="org.etsi.mts.tdl.tools.menus.TDLMenu">
+ <command
+ commandId="org.etsi.mts.tdl.openapi.generator.ui.commands.generateCommand"
+ icon="icons/TransformIcon.png"
+ mnemonic="X"
+ id="org.etsi.mts.tdl.openapi.generator.ui.menus.generateCommand">
+ </command>
+ </menu>
+ </menuContribution>
+ <menuContribution
+ locationURI="toolbar:org.eclipse.ui.main.toolbar?after=additions">
+ <toolbar
+ id="org.etsi.mts.tdl.openapi.generator.ui.toolbars.generate">
+ <command
+ commandId="org.etsi.mts.tdl.openapi.generator.ui.commands.generateCommand"
+ icon="icons/TransformIcon.png"
+ name="OpenAPI Generate target implementation"
+ id="org.etsi.mts.tdl.openapi.generator.ui.toolbars.generateCommand">
+ </command>
+ </toolbar>
+ </menuContribution>
+ </extension>
+
+</plugin>
diff --git a/plugins/org.etsi.mts.tdl.openapi.generator.ui/src/org/etsi/mts/tdl/openapi/generator/ui/Activator.java b/plugins/org.etsi.mts.tdl.openapi.generator.ui/src/org/etsi/mts/tdl/openapi/generator/ui/Activator.java
new file mode 100644
index 0000000000000000000000000000000000000000..0905c40699ed8d4b63abc265d201b459685841b1
--- /dev/null
+++ b/plugins/org.etsi.mts.tdl.openapi.generator.ui/src/org/etsi/mts/tdl/openapi/generator/ui/Activator.java
@@ -0,0 +1,61 @@
+package org.etsi.mts.tdl.openapi.generator.ui;
+
+import org.eclipse.jface.resource.ImageDescriptor;
+import org.eclipse.ui.plugin.AbstractUIPlugin;
+import org.osgi.framework.BundleContext;
+
+/**
+ * The activator class controls the plug-in life cycle
+ */
+public class Activator extends AbstractUIPlugin {
+
+ // The plug-in ID
+ public static final String PLUGIN_ID = "org.etsi.mts.tdl.openapi.generator.ui"; //$NON-NLS-1$
+
+ // The shared instance
+ private static Activator plugin;
+
+ /**
+ * The constructor
+ */
+ public Activator() {
+ }
+
+ /*
+ * (non-Javadoc)
+ * @see org.eclipse.ui.plugin.AbstractUIPlugin#start(org.osgi.framework.BundleContext)
+ */
+ public void start(BundleContext context) throws Exception {
+ super.start(context);
+ plugin = this;
+ }
+
+ /*
+ * (non-Javadoc)
+ * @see org.eclipse.ui.plugin.AbstractUIPlugin#stop(org.osgi.framework.BundleContext)
+ */
+ public void stop(BundleContext context) throws Exception {
+ plugin = null;
+ super.stop(context);
+ }
+
+ /**
+ * Returns the shared instance
+ *
+ * @return the shared instance
+ */
+ public static Activator getDefault() {
+ return plugin;
+ }
+
+ /**
+ * Returns an image descriptor for the image file at the given
+ * plug-in relative path
+ *
+ * @param path the path
+ * @return the image descriptor
+ */
+ public static ImageDescriptor getImageDescriptor(String path) {
+ return imageDescriptorFromPlugin(PLUGIN_ID, path);
+ }
+}
diff --git a/plugins/org.etsi.mts.tdl.openapi.generator.ui/src/org/etsi/mts/tdl/openapi/generator/ui/handlers/GeneratorHandler.java b/plugins/org.etsi.mts.tdl.openapi.generator.ui/src/org/etsi/mts/tdl/openapi/generator/ui/handlers/GeneratorHandler.java
new file mode 100644
index 0000000000000000000000000000000000000000..234b3a65e739f20283a920814f08b0fa828d3386
--- /dev/null
+++ b/plugins/org.etsi.mts.tdl.openapi.generator.ui/src/org/etsi/mts/tdl/openapi/generator/ui/handlers/GeneratorHandler.java
@@ -0,0 +1,111 @@
+package org.etsi.mts.tdl.openapi.generator.ui.handlers;
+
+import java.util.Arrays;
+import java.util.LinkedHashMap;
+
+import org.eclipse.core.commands.AbstractHandler;
+import org.eclipse.core.commands.ExecutionEvent;
+import org.eclipse.core.commands.ExecutionException;
+import org.eclipse.core.resources.IFile;
+import org.eclipse.jface.viewers.ISelection;
+import org.eclipse.jface.viewers.IStructuredSelection;
+import org.eclipse.jface.viewers.LabelProvider;
+import org.eclipse.jface.window.Window;
+import org.eclipse.swt.widgets.Display;
+import org.eclipse.ui.IEditorInput;
+import org.eclipse.ui.IWorkbenchWindow;
+import org.eclipse.ui.dialogs.ElementListSelectionDialog;
+import org.eclipse.ui.handlers.HandlerUtil;
+import org.eclipse.ui.part.FileEditorInput;
+
+/**
+ * Our sample handler extends AbstractHandler, an IHandler base class.
+ * @see org.eclipse.core.commands.IHandler
+ * @see org.eclipse.core.commands.AbstractHandler
+ */
+public class GeneratorHandler extends AbstractHandler {
+
+ LinkedHashMap<String, String> targetFormats = new LinkedHashMap<>();
+
+ public static String translationTarget = "java";
+
+ private IWorkbenchWindow window;
+
+ /**
+ * The constructor.
+ */
+ public GeneratorHandler() {
+ init();
+ }
+
+ private void init() {
+ //TODO: update rt.ui as well
+ //TODO: do not reload after first init
+ if (!targetFormats.isEmpty()) {
+ return;
+ }
+ targetFormats.clear();
+
+ for (String gen : OpenAPIGeneratorLauncher.listGenerators()) {
+ targetFormats.put(gen, gen);
+ }
+ }
+
+ /**
+ * the command has been executed, so extract extract the needed information
+ * from the application context.
+ */
+ public Object execute(ExecutionEvent event) throws ExecutionException {
+ init();
+ ISelection selection = HandlerUtil.getCurrentSelection(event);
+ IEditorInput input = HandlerUtil.getActiveEditorInput(event);
+ IFile file = null;
+ if (input != null && input instanceof FileEditorInput && ((FileEditorInput) input).getFile().getName().endsWith("yaml")) {
+ file = ((FileEditorInput) input).getFile();
+ } else if (selection !=null && selection instanceof IStructuredSelection) {
+ IStructuredSelection structuredSelection = (IStructuredSelection) selection;
+ Object firstElement = structuredSelection.getFirstElement();
+ if (firstElement instanceof IFile) {
+ file = (IFile) firstElement;
+ }
+ }
+
+ if (file !=null && file.getName().endsWith("yaml")) {
+
+ ElementListSelectionDialog dialog = new ElementListSelectionDialog(Display.getDefault().getActiveShell(), new LabelProvider());
+ dialog.setTitle("OpenAPI Generator Target Selection");
+ dialog.setMessage("Generating assets from "+file.getName()
+ +"\n\nSelect the target format");
+ dialog.setElements(targetFormats.keySet().toArray());
+
+ dialog.setInitialElementSelections(Arrays.asList(new String[] {GeneratorHandler.translationTarget}));
+ //TODO: add option to skip validation
+ //TODO: add step to validate
+
+ // user pressed cancel
+ if (dialog.open() != Window.OK) {
+ return false;
+ } else {
+ //TODO: enable validation once it does not exit
+// OpenAPIGeneratorLauncher.validate(file.getLocation().toFile().getAbsolutePath());
+// OpenAPIGeneratorLauncher.parse(file.getLocation().toFile().getAbsolutePath());
+
+ Object[] result = dialog.getResult();
+ String selected = (String)result[0];
+ translationTarget = selected;
+ OpenAPIGeneratorLauncher.launch(file.getLocation().toFile().getAbsolutePath(), selected);
+ }
+ }
+ return null;
+ }
+
+ public void init(IWorkbenchWindow window) {
+ this.window = window;
+ }
+
+ @Override
+ public boolean isEnabled() {
+ return true;
+ }
+
+}
diff --git a/plugins/org.etsi.mts.tdl.openapi.generator.ui/src/org/etsi/mts/tdl/openapi/generator/ui/handlers/OpenAPIGeneratorLauncher.java b/plugins/org.etsi.mts.tdl.openapi.generator.ui/src/org/etsi/mts/tdl/openapi/generator/ui/handlers/OpenAPIGeneratorLauncher.java
new file mode 100644
index 0000000000000000000000000000000000000000..1c13cf35b10dd23b6e280100e1f3882de2ffe645
--- /dev/null
+++ b/plugins/org.etsi.mts.tdl.openapi.generator.ui/src/org/etsi/mts/tdl/openapi/generator/ui/handlers/OpenAPIGeneratorLauncher.java
@@ -0,0 +1,79 @@
+package org.etsi.mts.tdl.openapi.generator.ui.handlers;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+import org.openapitools.codegen.CodegenConfig;
+import org.openapitools.codegen.CodegenConfigLoader;
+import org.openapitools.codegen.OpenAPIGenerator;
+import org.openapitools.codegen.meta.GeneratorMetadata;
+import org.openapitools.codegen.utils.ModelUtils;
+
+import io.swagger.parser.OpenAPIParser;
+import io.swagger.v3.oas.models.Components;
+import io.swagger.v3.oas.models.OpenAPI;
+import io.swagger.v3.oas.models.media.ArraySchema;
+import io.swagger.v3.oas.models.media.Schema;
+import io.swagger.v3.parser.core.models.ParseOptions;
+
+public class OpenAPIGeneratorLauncher {
+
+ public static void main(String[] args) {
+// launch(input, target);
+ listGenerators();
+// parse(input);
+ }
+
+ public static List<String> listGenerators() {
+ List<CodegenConfig> generators = new ArrayList<>();
+ List<String> generatorNames = new ArrayList<>();
+ for (CodegenConfig codegenConfig : CodegenConfigLoader.getAll()) {
+ GeneratorMetadata meta = codegenConfig.getGeneratorMetadata();
+ if (meta != null) {
+ generators.add(codegenConfig);
+ generatorNames.add(codegenConfig.getName());
+ }
+ }
+ return generatorNames;
+ }
+
+ public static void launch(String input, String target) {
+ launch(input, target, true);
+ }
+
+ public static void launch(String input, String target, boolean skipValidation) {
+ String inputFolder = new File(input).getParentFile().getAbsolutePath();
+ String output = inputFolder+"/generated/"+target+"/";
+ new File(output).mkdirs();
+ String skip = "";
+ if (skipValidation) {
+ skip = "--skip-validate-spec";
+ }
+ OpenAPIGenerator.main(new String[] {"generate", "-g", target, "-i", input, "-o", output, skip});
+ }
+
+ public static void validate(String input) {
+ //TODO: adapt from source so that it does not exit or run in a separate process?
+ OpenAPIGenerator.main(new String[] {"validate", "-i", input});
+ }
+
+ public static void parse(String input) {
+ System.out.println("Parsing "+input);
+ OpenAPI openAPI = new OpenAPIParser().readLocation(input, null, new ParseOptions()).getOpenAPI();
+ Components components = openAPI.getComponents();
+ Map<String, Schema> schemas = components.getSchemas();
+ ArraySchema object = (ArraySchema) schemas.get("Library").getProperties().get("books");
+ System.out.println(object.getItems().get$ref());
+// System.out.println(schemas.get("Library").getName());
+ System.out.println("MU:"+ModelUtils.getReferencedSchema(openAPI, object.getItems()));
+ schemas.forEach((k,v) -> System.out.println(k));
+ // Invoke helper function to get the original swagger version.
+ // See https://github.com/swagger-api/swagger-parser/pull/1374
+ // Also see https://github.com/swagger-api/swagger-parser/issues/1369.
+ ModelUtils.getOpenApiVersion(openAPI, input, null);
+
+ }
+
+}