Use general extension point + nature and builder refactoring (#133)

* re-enable o.e.g.gemoc_language_workbench.xdsml extension point
* use general language extension point instead of sequential
contributes to #132
* replace use of sequential extension point by the general one
* remove org.eclipse.gemoc.execution.sequential.javaxdsml.api
     this plugin is now useless since all its content is covered by the general  org.eclipse.geomc.xdsmlframework.api
* rename getLanguageDefinition into getLanguageDefinitionExtension
* improved plugin.xml manipulation helper (+ documentation)
* move split sequential nature and builder to xdsmlframework.ide.ui
  - split the nature and the builder that was in sequential.javaxdsml.ide.ui
and create a more generic nature and builder in xdsmlframework.ide.ui
  - simplified method for configure/deconfigure/toggle nature : it now uses a single place to do the configuration
  - configure of sequential nature also enforces the general nature
* group configure action related to gemoc language projects
* move some generic popup action to xdsmlframework.ide.ui
  the following popup actions on project is now moved from sequential.javaxdsml.ide.ui to xdsmlframework.ide.ui:
* add the "Generate Multidimensional Trace Addon" on any GEMOC project
  - make sure to add the popup action on the generic nature
* move K3 DSA project creation classes to a dedicated commons plugin
  - These classes from sequential engine can now be reused by other engines such as the moccml engine
  - As this introduce dependency to k3, this plugin is in a dedicated k3 feature and not in the general common
* framework commons is now pomless
* ignore .polyglot.build.properties
* rename wizard GEMOC Sequential xDSML Project to GEMOC Java xDSML Project

Signed-off-by: Didier Vojtisek <didier.vojtisek@inria.fr>

.gitignore

@@ -16,3 +16,5 @@ target
 build.acceleo
 .DS_Store
 xtend-gen
+.polyglot.build.properties
+

framework/execution_framework/plugins/org.eclipse.gemoc.executionframework.engine/src/org/eclipse/gemoc/executionframework/engine/commons/AbstractModelExecutionContext.java

@@ -52,7 +52,7 @@ public AbstractModelExecutionContext(R runConfiguration, ExecutionMode execution
 			} catch (CoreException e) {
 				// TODO throw warning that we couldn't copy the model
 			}
-			_languageDefinition = getLanguageDefinition(_runConfiguration.getLanguageName());
+			_languageDefinition = getLanguageDefinitionExtension(_runConfiguration.getLanguageName());
 			_dslBundle = DslHelper.getDslBundle(_runConfiguration.getLanguageName());
 			_executionPlatform = createExecutionPlatform(); // new
 															// DefaultExecutionPlatform(_languageDefinition,
@@ -66,7 +66,7 @@ public AbstractModelExecutionContext(R runConfiguration, ExecutionMode execution
 
 	protected abstract P createExecutionPlatform() throws CoreException;
 
-	protected abstract L getLanguageDefinition(String languageName) throws EngineContextException;
+	protected abstract L getLanguageDefinitionExtension(String languageName) throws EngineContextException;
 
 	@Override
 	public R getRunConfiguration() {

framework/execution_framework/plugins/org.eclipse.gemoc.executionframework.engine/src/org/eclipse/gemoc/executionframework/engine/commons/DslHelper.java

@@ -19,20 +19,21 @@
 import org.eclipse.emf.ecore.resource.Resource;
 import org.eclipse.emf.ecore.resource.impl.ResourceSetImpl;
 import org.eclipse.gemoc.dsl.Dsl;
+import org.eclipse.gemoc.xdsmlframework.api.extensions.languages.LanguageDefinitionExtensionPoint;
 import org.osgi.framework.Bundle;
 
 /**
  * General helper for dsl file
  * 
  */
 public class DslHelper {
-	
+
 	/**
 	 * Return a bundle with a .dsl declaring 'languageName'
 	 */
 	public static Bundle getDslBundle(String languageName) {
-		
-		IConfigurationElement[] languages = Platform.getExtensionRegistry().getConfigurationElementsFor("org.eclipse.gemoc.gemoc_language_workbench.sequential.xdsml");
+
+		IConfigurationElement[] languages = Platform.getExtensionRegistry().getConfigurationElementsFor(LanguageDefinitionExtensionPoint.GEMOC_LANGUAGE_EXTENSION_POINT);
 		for (IConfigurationElement lang : languages) {
 			String xdsmlPath = lang.getAttribute("xdsmlFilePath");
 			String xdsmlName = lang.getAttribute("name");
@@ -43,22 +44,22 @@ public static Bundle getDslBundle(String languageName) {
 		}
 		return null;
 	}
-	
+
 	/**
 	 * Return all declared Languages
 	 */
-	public static List<String> getAllLanguages(){
+	public static List<String> getAllLanguages() {
 		List<String> languagesNames = new ArrayList<String>();
-		IConfigurationElement[] languages = Platform.getExtensionRegistry().getConfigurationElementsFor("org.eclipse.gemoc.gemoc_language_workbench.sequential.xdsml");
+		IConfigurationElement[] languages = Platform.getExtensionRegistry().getConfigurationElementsFor(LanguageDefinitionExtensionPoint.GEMOC_LANGUAGE_EXTENSION_POINT);
 		for (IConfigurationElement lang : languages) {
 			languagesNames.add(lang.getAttribute("name"));
 		}
 		return languagesNames;
 	}
-	
+
 	public static Dsl load(String languageName) {
-		
-		IConfigurationElement[] languages = Platform.getExtensionRegistry().getConfigurationElementsFor("org.eclipse.gemoc.gemoc_language_workbench.sequential.xdsml");
+
+		IConfigurationElement[] languages = Platform.getExtensionRegistry().getConfigurationElementsFor(LanguageDefinitionExtensionPoint.GEMOC_LANGUAGE_EXTENSION_POINT);
 		for (IConfigurationElement lang : languages) {
 			String xdsmlPath = lang.getAttribute("xdsmlFilePath");
 			String xdsmlName = lang.getAttribute("name");
@@ -70,14 +71,14 @@ public static Dsl load(String languageName) {
 		}
 		return null;
 	}
-	
+
 	/**
-	 * Return the substring after the last '.' or the whole 'qualifiedName' if
-	 * no dot character.
+	 * Return the substring after the last '.' or the whole 'qualifiedName' if no
+	 * dot character.
 	 */
-	public static String lastSegment(String qualifiedName){
-		if(qualifiedName.contains(".")) {
-			return qualifiedName.substring(qualifiedName.lastIndexOf(".")+1);
+	public static String lastSegment(String qualifiedName) {
+		if (qualifiedName.contains(".")) {
+			return qualifiedName.substring(qualifiedName.lastIndexOf(".") + 1);
 		} else {
 			return qualifiedName;
 		}

framework/framework_commons/plugins/org.eclipse.gemoc.xdsmlframework.api/plugin.xml

@@ -13,9 +13,7 @@
 
 <plugin>
 
-<!--   <extension-point id="org.eclipse.gemoc.gemoc_language_workbench.xdsml" name="Gemoc Language Definition" schema="schema/org.eclipse.gemoc.gemoc_language_workbench.xdsml.exsd"/>
-   <extension-point id="org.eclipse.gemoc.gemoc_language_workbench.deciders" name="GEMOC Decider" schema="schema/org.eclipse.gemoc.gemoc_language_workbench.decider.exsd"/>
-   -->
+   <extension-point id="org.eclipse.gemoc.gemoc_language_workbench.xdsml" name="GEMOC Language Definition" schema="schema/org.eclipse.gemoc.gemoc_language_workbench.xdsml.exsd"/>
    <extension-point id="org.eclipse.gemoc.gemoc_language_workbench.engine_addon" name="Engine Addon" schema="schema/org.eclipse.gemoc.gemoc_language_workbench.engine_addon.exsd"/>
    <extension-point id="org.eclipse.gemoc.gemoc_language_workbench.engine_addon_group" name="Engine AddonGroup" schema="schema/org.eclipse.gemoc.gemoc_language_workbench.engine_addon_group.exsd"/>
 

framework/framework_commons/plugins/org.eclipse.gemoc.xdsmlframework.api/src/org/eclipse/gemoc/xdsmlframework/api/extensions/languages/LanguageDefinitionExtensionPoint.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2016, 2017 Inria and others.
+ * Copyright (c) 2016, 2019 Inria and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
@@ -10,13 +10,15 @@
  *******************************************************************************/
 package org.eclipse.gemoc.xdsmlframework.api.extensions.languages;
 
+import java.util.Collection;
+
 import org.eclipse.gemoc.xdsmlframework.api.extensions.ExtensionPoint;
 
-public abstract class LanguageDefinitionExtensionPoint extends ExtensionPoint<LanguageDefinitionExtension>
+public class LanguageDefinitionExtensionPoint extends ExtensionPoint<LanguageDefinitionExtension>
 {
 
 
-//	public static final String GEMOC_LANGUAGE_EXTENSION_POINT = "org.eclipse.gemoc.gemoc_language_workbench.xdsml";
+	public static final String GEMOC_LANGUAGE_EXTENSION_POINT = "org.eclipse.gemoc.gemoc_language_workbench.xdsml";
 	public static final String GEMOC_LANGUAGE_EXTENSION_POINT_XDSML_DEF = "XDSML_Definition";
 	public static final String GEMOC_LANGUAGE_EXTENSION_POINT_XDSML_DEF_NAME_ATT = "name";
 	public static final String GEMOC_LANGUAGE_EXTENSION_POINT_XDSML_DEF_LOADMODEL_ATT = "modelLoader_class";
@@ -32,41 +34,41 @@ protected LanguageDefinitionExtensionPoint()
 	{
 		super(LanguageDefinitionExtension.class);
 	}
-//
-//	private static LanguageDefinitionExtensionPoint _singleton;
-//	
-//	private static LanguageDefinitionExtensionPoint getExtensionPoint()
-//	{
-//		if (_singleton == null)
-//		{
-//			_singleton = new LanguageDefinitionExtensionPoint();
-//		}
-//		return _singleton;
-//	}
+
+	private static LanguageDefinitionExtensionPoint _singleton;
+
+	private static LanguageDefinitionExtensionPoint getExtensionPoint()
+	{
+		if (_singleton == null)
+		{
+			_singleton = new LanguageDefinitionExtensionPoint();
+		}
+		return _singleton;
+	}
 
-//	static public Collection<LanguageDefinitionExtension> getSpecifications() 
-//	{
-//		return getExtensionPoint().internal_getSpecifications();
-//	}
-//	
-//	static public LanguageDefinitionExtension findDefinition(String languageName)
-//	{
-//		for (LanguageDefinitionExtension extension : getSpecifications())
-//		{
-//			if (extension.getName().equals(languageName))
-//			{
-//				return extension;
-//			}
-//		}
-//		return null;
-//	}
+	static public Collection<LanguageDefinitionExtension> getSpecifications() 
+	{
+		return getExtensionPoint().internal_getSpecifications();
+	}
+
+	static public LanguageDefinitionExtension findDefinition(String languageName)
+	{
+		for (LanguageDefinitionExtension extension : getSpecifications())
+		{
+			if (extension.getName().equals(languageName))
+			{
+				return extension;
+			}
+		}
+		return null;
+	}
 
 
 
-//	@Override
-//	protected String getExtensionPointName()
-//	{
-//		return GEMOC_LANGUAGE_EXTENSION_POINT;
-//	}
+	@Override
+	protected String getExtensionPointName()
+	{
+		return GEMOC_LANGUAGE_EXTENSION_POINT;
+	}
 
 }