implemented model element handler service and part of navigator view

org.fortiss.tooling.kernel/trunk/META-INF/MANIFEST.MF

@@ -15,7 +15,9 @@ Require-Bundle: org.eclipse.ui;visibility:=reexport,
 Bundle-RequiredExecutionEnvironment: JavaSE-1.6
 Bundle-ActivationPolicy: lazy
 Export-Package: org.fortiss.tooling.kernel,
+ org.fortiss.tooling.kernel.base,
  org.fortiss.tooling.kernel.interfaces,
  org.fortiss.tooling.kernel.model,
  org.fortiss.tooling.kernel.model.impl,
- org.fortiss.tooling.kernel.model.util
+ org.fortiss.tooling.kernel.model.util,
+ org.fortiss.tooling.kernel.services

org.fortiss.tooling.kernel/trunk/plugin.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <?eclipse version="3.4"?>
 <plugin>
+   <extension-point id="modelElementHandler" name="Model Element Handler" schema="schema/modelElementHandler.exsd"/>
    <extension
          point="org.eclipse.ui.views">
       <view
@@ -13,10 +14,17 @@
    <extension
          point="org.eclipse.emf.ecore.generated_package">
       <package
-            class="org.fortiss.tooling.kernel.model.KernelPackage"
+            class="org.fortiss.tooling.kernel.model.FortissToolingKernelPackage"
             genModel="model/kernel.genmodel"
             uri="http://www.fortiss.org/tooling/kernel">
       </package>
    </extension>
+   <extension
+         point="org.fortiss.tooling.kernel.modelElementHandler">
+      <modelElementHandler
+            handler="org.fortiss.tooling.kernel.internal.handler.ECPProjectModelElementHandler"
+            modelElementClass="org.unicase.ecp.model.workSpaceModel.ECPProject">
+      </modelElementHandler>
+   </extension>
 
 </plugin>

org.fortiss.tooling.kernel/trunk/schema/modelElementHandler.exsd

+<?xml version='1.0' encoding='UTF-8'?>
+<!-- Schema file written by PDE -->
+<schema targetNamespace="org.fortiss.tooling.kernel" xmlns="http://www.w3.org/2001/XMLSchema">
+<annotation>
+      <appinfo>
+         <meta.schema plugin="org.fortiss.tooling.kernel" id="modelElementHandler" name="Model Element Handler"/>
+      </appinfo>
+      <documentation>
+         Extension point for model element handlers.
+      </documentation>
+   </annotation>
+
+   <element name="extension">
+      <annotation>
+         <appinfo>
+            <meta.element />
+         </appinfo>
+      </annotation>
+      <complexType>
+         <sequence>
+            <element ref="modelElementHandler" minOccurs="1" maxOccurs="unbounded"/>
+         </sequence>
+         <attribute name="point" type="string" use="required">
+            <annotation>
+               <documentation>
+                  
+               </documentation>
+            </annotation>
+         </attribute>
+         <attribute name="id" type="string">
+            <annotation>
+               <documentation>
+                  
+               </documentation>
+            </annotation>
+         </attribute>
+         <attribute name="name" type="string">
+            <annotation>
+               <documentation>
+                  
+               </documentation>
+               <appinfo>
+                  <meta.attribute translatable="true"/>
+               </appinfo>
+            </annotation>
+         </attribute>
+      </complexType>
+   </element>
+
+   <element name="modelElementHandler">
+      <complexType>
+         <attribute name="modelElementClass" type="string" use="required">
+            <annotation>
+               <documentation>
+                  
+               </documentation>
+               <appinfo>
+                  <meta.attribute kind="java" basedOn=":org.eclipse.emf.ecore.EObject"/>
+               </appinfo>
+            </annotation>
+         </attribute>
+         <attribute name="handler" type="string" use="required">
+            <annotation>
+               <documentation>
+                  
+               </documentation>
+               <appinfo>
+                  <meta.attribute kind="java" basedOn=":org.fortiss.tooling.kernel.interfaces.IModelElementHandler"/>
+               </appinfo>
+            </annotation>
+         </attribute>
+      </complexType>
+   </element>
+
+   <annotation>
+      <appinfo>
+         <meta.section type="since"/>
+      </appinfo>
+      <documentation>
+         [Enter the first release in which this extension point appears.]
+      </documentation>
+   </annotation>
+
+   <annotation>
+      <appinfo>
+         <meta.section type="examples"/>
+      </appinfo>
+      <documentation>
+         [Enter extension point usage example here.]
+      </documentation>
+   </annotation>
+
+   <annotation>
+      <appinfo>
+         <meta.section type="apiinfo"/>
+      </appinfo>
+      <documentation>
+         [Enter API information here.]
+      </documentation>
+   </annotation>
+
+   <annotation>
+      <appinfo>
+         <meta.section type="implementation"/>
+      </appinfo>
+      <documentation>
+         [Enter information about supplied implementation of this extension point.]
+      </documentation>
+   </annotation>
+
+
+</schema>

org.fortiss.tooling.kernel/trunk/src/org/fortiss/tooling/kernel/ToolingKernelActivator.java

@@ -17,6 +17,7 @@ $Id$
 +--------------------------------------------------------------------------*/
 package org.fortiss.tooling.kernel;
 
+import org.eclipse.jface.resource.ImageDescriptor;
 import org.eclipse.ui.plugin.AbstractUIPlugin;
 import org.fortiss.tooling.kernel.internal.ServiceManager;
 import org.osgi.framework.BundleContext;
@@ -64,4 +65,9 @@ public class ToolingKernelActivator extends AbstractUIPlugin {
 	public static ToolingKernelActivator getDefault() {
 		return plugin;
 	}
+
+	/** Returns image descriptor of the image in the kernel plugin. */
+	public static ImageDescriptor getImageDescriptor(String iconPath) {
+		return imageDescriptorFromPlugin(PLUGIN_ID, iconPath);
+	}
 }

org.fortiss.tooling.kernel/trunk/src/org/fortiss/tooling/kernel/base/ModelElementHandlerBase.java

+/*--------------------------------------------------------------------------+
+$Id$
+|                                                                          |
+| Copyright 2011 ForTISS GmbH                     |
+|                                                                          |
+| Licensed under the Apache License, Version 2.0 (the "License");          |
+| you may not use this file except in compliance with the License.         |
+| You may obtain a copy of the License at                                  |
+|                                                                          |
+|    http://www.apache.org/licenses/LICENSE-2.0                            |
+|                                                                          |
+| Unless required by applicable law or agreed to in writing, software      |
+| distributed under the License is distributed on an "AS IS" BASIS,        |
+| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
+| See the License for the specific language governing permissions and      |
+| limitations under the License.                                           |
++--------------------------------------------------------------------------*/
+package org.fortiss.tooling.kernel.base;
+
+import java.util.Collections;
+import java.util.List;
+
+import org.eclipse.emf.ecore.EObject;
+import org.eclipse.jface.resource.ImageDescriptor;
+import org.eclipse.swt.graphics.Image;
+import org.fortiss.tooling.kernel.ToolingKernelActivator;
+import org.fortiss.tooling.kernel.interfaces.IModelElementHandler;
+
+/**
+ * Base implementation for {@link IModelElementHandler}s.
+ * 
+ * @author hoelzlf
+ * @author $Author$
+ * @version $Rev$
+ * @levd.rating RED Rev:
+ */
+public abstract class ModelElementHandlerBase<T extends EObject> implements
+		IModelElementHandler<T> {
+
+	/** Stores the singleton of the icon image. */
+	private Image iconImage;
+
+	/** {@inheritDoc} */
+	@Override
+	public String getDescription(T element) {
+		return "";
+	}
+
+	/** {@inheritDoc} */
+	@Override
+	public final Image getIcon(T element) {
+		if (iconImage == null) {
+			ImageDescriptor descr = getImageDescriptor();
+			if (descr != null) {
+				iconImage = descr.createImage();
+			}
+		}
+		return iconImage;
+	}
+
+	/** Returns image descriptor to be used as icon image. */
+	protected ImageDescriptor getImageDescriptor() {
+		return ToolingKernelActivator.getImageDescriptor("icons/unknown.png");
+	}
+
+	/** {@inheritDoc} */
+	@Override
+	public List<EObject> getSubnodes(T element) {
+		return Collections.emptyList();
+	}
+
+	/** {@inheritDoc} */
+	@Override
+	public List<EObject> getConnectors(T element) {
+		return Collections.emptyList();
+	}
+
+	/** {@inheritDoc} */
+	@Override
+	public List<EObject> getIncomingConnections(T element) {
+		return Collections.emptyList();
+	}
+
+	/** {@inheritDoc} */
+	@Override
+	public List<EObject> getOutgoingConnections(T element) {
+		return Collections.emptyList();
+	}
+
+	/** {@inheritDoc} */
+	@Override
+	public List<EObject> getSpecifications(T element) {
+		return Collections.emptyList();
+	}
+}

org.fortiss.tooling.kernel/trunk/src/org/fortiss/tooling/kernel/interfaces/IModelElementHandler.java

+/*--------------------------------------------------------------------------+
+$Id$
+|                                                                          |
+| Copyright 2011 ForTISS GmbH                     |
+|                                                                          |
+| Licensed under the Apache License, Version 2.0 (the "License");          |
+| you may not use this file except in compliance with the License.         |
+| You may obtain a copy of the License at                                  |
+|                                                                          |
+|    http://www.apache.org/licenses/LICENSE-2.0                            |
+|                                                                          |
+| Unless required by applicable law or agreed to in writing, software      |
+| distributed under the License is distributed on an "AS IS" BASIS,        |
+| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
+| See the License for the specific language governing permissions and      |
+| limitations under the License.                                           |
++--------------------------------------------------------------------------*/
+package org.fortiss.tooling.kernel.interfaces;
+
+import java.util.List;
+
+import org.eclipse.emf.ecore.EObject;
+import org.eclipse.swt.graphics.Image;
+
+/**
+ * A model element handler provides information about a specific type of model
+ * elements.
+ * 
+ * @author hoelzlf
+ * @author $Author$
+ * @version $Rev$
+ * @levd.rating RED Rev:
+ */
+public interface IModelElementHandler<T extends EObject> {
+
+	/** Returns the name of the model element (if any). */
+	String getName(T element);
+
+	/** Returns a description of the model element (if any). */
+	String getDescription(T element);
+
+	/** Returns the icon of the model element. */
+	Image getIcon(T element);
+
+	/** Returns all children acting as nodes. */
+	List<EObject> getSubnodes(T element);
+
+	/** Returns all children acting as connectors. */
+	List<EObject> getConnectors(T element);
+
+	/** Returns all connections entering this element. */
+	List<EObject> getIncomingConnections(T element);
+
+	/** Returns all connections leaving this element. */
+	List<EObject> getOutgoingConnections(T element);
+
+	/** Returns all children acting as a (visible) specification. */
+	List<EObject> getSpecifications(T element);
+}

org.fortiss.tooling.kernel/trunk/src/org/fortiss/tooling/kernel/internal/CommandStackService.java

@@ -17,7 +17,7 @@ $Id$
 +--------------------------------------------------------------------------*/
 package org.fortiss.tooling.kernel.internal;
 
-import org.fortiss.tooling.kernel.interfaces.ICommandStackService;
+import org.fortiss.tooling.kernel.services.ICommandStackService;
 
 /**
  * This class implements the {@link ICommandStackService} interface.

org.fortiss.tooling.kernel/trunk/src/org/fortiss/tooling/kernel/internal/CompositorService.java

@@ -17,7 +17,7 @@ $Id$
 +--------------------------------------------------------------------------*/
 package org.fortiss.tooling.kernel.internal;
 
-import org.fortiss.tooling.kernel.interfaces.ICompositorService;
+import org.fortiss.tooling.kernel.services.ICompositorService;
 
 /**
  * This class implements the {@link ICompositorService} interface.

org.fortiss.tooling.kernel/trunk/src/org/fortiss/tooling/kernel/internal/ConnectorService.java

@@ -17,7 +17,7 @@ $Id$
 +--------------------------------------------------------------------------*/
 package org.fortiss.tooling.kernel.internal;
 
-import org.fortiss.tooling.kernel.interfaces.IConnectorService;
+import org.fortiss.tooling.kernel.services.IConnectorService;
 
 /**
  * This class implements the {@link IConnectorService} interface.

org.fortiss.tooling.kernel/trunk/src/org/fortiss/tooling/kernel/internal/ConstraintService.java

@@ -17,7 +17,7 @@ $Id$
 +--------------------------------------------------------------------------*/
 package org.fortiss.tooling.kernel.internal;
 
-import org.fortiss.tooling.kernel.interfaces.IConstraintService;
+import org.fortiss.tooling.kernel.services.IConstraintService;
 
 /**
  * This class implements the {@link IConstraintService} interface.

org.fortiss.tooling.kernel/trunk/src/org/fortiss/tooling/kernel/internal/ContextMenuService.java

@@ -17,7 +17,7 @@ $Id$
 +--------------------------------------------------------------------------*/
 package org.fortiss.tooling.kernel.internal;
 
-import org.fortiss.tooling.kernel.interfaces.IContextMenuService;
+import org.fortiss.tooling.kernel.services.IContextMenuService;
 
 /**
  * This class implements the {@link IContextMenuService} interface.

org.fortiss.tooling.kernel/trunk/src/org/fortiss/tooling/kernel/internal/EditorService.java

@@ -17,7 +17,7 @@ $Id$
 +--------------------------------------------------------------------------*/
 package org.fortiss.tooling.kernel.internal;
 
-import org.fortiss.tooling.kernel.interfaces.IEditorService;
+import org.fortiss.tooling.kernel.services.IEditorService;
 
 /**
  * This class implements the {@link IEditorService} interface.

org.fortiss.tooling.kernel/trunk/src/org/fortiss/tooling/kernel/internal/ExecutionService.java

@@ -17,7 +17,7 @@ $Id$
 +--------------------------------------------------------------------------*/
 package org.fortiss.tooling.kernel.internal;
 
-import org.fortiss.tooling.kernel.interfaces.IExecutionService;
+import org.fortiss.tooling.kernel.services.IExecutionService;
 
 /**
  * This class implements the {@link IExecutionService} interface.

org.fortiss.tooling.kernel/trunk/src/org/fortiss/tooling/kernel/internal/LibraryService.java

@@ -17,7 +17,7 @@ $Id$
 +--------------------------------------------------------------------------*/
 package org.fortiss.tooling.kernel.internal;
 
-import org.fortiss.tooling.kernel.interfaces.ILibraryService;
+import org.fortiss.tooling.kernel.services.ILibraryService;
 
 /**
  * This class implements the {@link ILibraryService} interface.

org.fortiss.tooling.kernel/trunk/src/org/fortiss/tooling/kernel/internal/MarkerService.java

@@ -17,7 +17,7 @@ $Id$
 +--------------------------------------------------------------------------*/
 package org.fortiss.tooling.kernel.internal;
 
-import org.fortiss.tooling.kernel.interfaces.IMarkerService;
+import org.fortiss.tooling.kernel.services.IMarkerService;
 
 /**
  * This class implements the {@link IMarkerService} interface.

org.fortiss.tooling.kernel/trunk/src/org/fortiss/tooling/kernel/internal/ModelElementService.java

@@ -17,7 +17,18 @@ $Id$
 +--------------------------------------------------------------------------*/
 package org.fortiss.tooling.kernel.internal;
 
-import org.fortiss.tooling.kernel.interfaces.IModelElementService;
+import java.util.HashMap;
+import java.util.Map;
+
+import org.conqat.ide.commons.ui.extension.ExtensionPointUtils;
+import org.conqat.ide.commons.ui.logging.LoggingUtils;
+import org.conqat.lib.commons.reflect.ReflectionUtils;
+import org.eclipse.core.runtime.IConfigurationElement;
+import org.eclipse.emf.ecore.EObject;
+import org.fortiss.tooling.kernel.ToolingKernelActivator;
+import org.fortiss.tooling.kernel.interfaces.IModelElementHandler;
+import org.fortiss.tooling.kernel.services.IModelElementService;
+import org.osgi.framework.Bundle;
 
 /**
  * This class implements the {@link IModelElementService} interface.
@@ -29,4 +40,59 @@ import org.fortiss.tooling.kernel.interfaces.IModelElementService;
  */
 public class ModelElementService implements IModelElementService {
 
+	/** The model element handler extension point ID. */
+	private static final String HANDLER_EXTENSION_POINT_NAME = "org.fortiss.tooling.kernel.modelElementHandler";
+
+	/** The model element handler configuration element name. */
+	private static final String HANDLER_CONFIGURATION_ELEMENT_NAME = "modelElementHandler";
+
+	/** Stores the model element handler for each model element class. */
+	private Map<Class<?>, IModelElementHandler<EObject>> handlerMap;
+
+	/** Constructor. */
+	public ModelElementService() {
+		setupHandlerMap();
+	}
+
+	/** Initializes the handler map from plugin extensions. */
+	@SuppressWarnings({ "unchecked", "rawtypes" })
+	private void setupHandlerMap() {
+		handlerMap = new HashMap<Class<?>, IModelElementHandler<EObject>>();
+		for (IConfigurationElement ce : ExtensionPointUtils
+				.getConfigurationElements(HANDLER_EXTENSION_POINT_NAME,
+						HANDLER_CONFIGURATION_ELEMENT_NAME)) {
+			Bundle bundle = ExtensionPointUtils.getBundle(ce);
+			try {
+				Class<?> modelElementClass = ExtensionPointUtils.loadClass(
+						ce.getAttribute("modelElementClass"), bundle);
+				Class<?> handlerClass = ExtensionPointUtils.loadClass(
+						ce.getAttribute("handler"), bundle);
+				IModelElementHandler<EObject> handler = (IModelElementHandler) handlerClass
+						.getConstructor().newInstance();
+				handlerMap.put(modelElementClass, handler);
+			} catch (Exception ex) {
+				LoggingUtils.error(ToolingKernelActivator.getDefault(),
+						ex.getMessage(), ex);
+			}
+		}
+
+	}
+
+	/** {@inheritDoc} */
+	@Override
+	public IModelElementHandler<EObject> getModelElementHandler(
+			EObject modelElement) {
+		Class<? extends EObject> clazz = modelElement.getClass();
+		IModelElementHandler<EObject> handler = handlerMap.get(clazz);
+		if (handler == null) {
+			handler = ReflectionUtils.performNearestClassLookup(clazz,
+					handlerMap);
+			if (handler == null) {
+				LoggingUtils.error(ToolingKernelActivator.getDefault(),
+						"No matching model element handler found for " + clazz,
+						null);
+			}
+		}
+		return handler;
+	}
 }

org.fortiss.tooling.kernel/trunk/src/org/fortiss/tooling/kernel/internal/MultiUserService.java

@@ -17,7 +17,7 @@ $Id$
 +--------------------------------------------------------------------------*/
 package org.fortiss.tooling.kernel.internal;
 
-import org.fortiss.tooling.kernel.interfaces.IMultiUserService;
+import org.fortiss.tooling.kernel.services.IMultiUserService;
 
 /**
  * This class implements the {@link IMultiUserService} interface.

org.fortiss.tooling.kernel/trunk/src/org/fortiss/tooling/kernel/internal/NavigatorService.java

@@ -17,7 +17,7 @@ $Id$
 +--------------------------------------------------------------------------*/
 package org.fortiss.tooling.kernel.internal;
 
-import org.fortiss.tooling.kernel.interfaces.INavigatorService;
+import org.fortiss.tooling.kernel.services.INavigatorService;
 
 /**
  * This class implements the {@link INavigatorService} interface.