Added Exception handling for the case when an referenced 'lastImpact' cannot be handled

git-svn-id: https://se1.informatik.uni-wuerzburg.de/usvn/svn/code/DMM/trunk@16282 9e42b895-fcda-4063-8a3b-11be15eb1bbd

edu.kit.ipd.descartes.adaptation.model/src/edu/kit/ipd/descartes/adaptation/model/AbstractEcoreModelLoader.java

@@ -9,31 +9,35 @@ import org.eclipse.core.resources.IProject;
 import org.eclipse.core.resources.IWorkspaceRoot;
 import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.emf.common.util.URI;
+import org.eclipse.emf.common.util.WrappedException;
 import org.eclipse.emf.ecore.EObject;
 import org.eclipse.emf.ecore.resource.Resource;
 import org.eclipse.emf.ecore.resource.ResourceSet;
 import org.eclipse.emf.ecore.util.EcoreUtil;
+import org.eclipse.emf.ecore.xmi.UnresolvedReferenceException;
 import org.eclipse.emf.ecore.xmi.XMIResource;
 
 public abstract class AbstractEcoreModelLoader {
-	
-    private static Logger logger = Logger.getLogger(AbstractEcoreModelLoader.class);
-    private ResourceSet resourceSet = null;
-    private URI currentUri = null;
-    private EObject loadedModel;
-    
+
+	private static Logger logger = Logger
+			.getLogger(AbstractEcoreModelLoader.class);
+	private ResourceSet resourceSet = null;
+	private URI currentUri = null;
+	private EObject loadedModel;
+
 	protected ResourceSet getResourceSet() {
-	    if (resourceSet == null)
-	        throw new NullPointerException("INTITIALIZE RESOURCE SET FIRST! ");
-        return resourceSet;
-    }
+		if (resourceSet == null)
+			throw new NullPointerException("INTITIALIZE RESOURCE SET FIRST! ");
+		return resourceSet;
+	}
 
 	protected void setResourceSet(ResourceSet resourceSet) {
-        this.resourceSet = resourceSet;
-    }
+		this.resourceSet = resourceSet;
+	}
 
-	/**Implement this method to initialize your {@link ResourceSet}, e.g.,
-	 * if you load your models in a standalone application.
+	/**
+	 * Implement this method to initialize your {@link ResourceSet}, e.g., if
+	 * you load your models in a standalone application.
 	 * 
 	 * @param resourceSet
 	 */
@@ -46,79 +50,95 @@ public abstract class AbstractEcoreModelLoader {
 	 * @return
 	 * @throws IOException
 	 */
-    public EObject load(URI uri) {
-        
-        if (null == uri)
-            throw new IllegalArgumentException("Missing file URI.");
-        
-        if (uri.equals(currentUri) && loadedModel != null)
-            return loadedModel;
-        
-        // Resource resource = resourceSet.createResource(fileURI);
-        Resource resource = resourceSet.getResource(uri, true);
-        try {
-            resource.load(null);
-            logger.info("Model from URI " + uri.toFileString() + " loaded.");
-        } catch (IOException e) {
-            logger.error("Error while loading model " + uri.toFileString(), e);
-            e.printStackTrace();
-        }
-        currentUri = uri;
-        EcoreUtil.resolveAll(resourceSet);
-        loadedModel = resource.getContents().get(0);
-        return resource.getContents().get(0);
-    }
-	
-    /**
-     * Persists the specified <code>obj</code> at the given
-     * <code>uri</code>.
-     * 
-     * @param uri
-     * @param obj
-     * @throws IOException
-     */
+	public EObject load(URI uri) {
+
+		if (null == uri)
+			throw new IllegalArgumentException("Missing file URI.");
+
+		if (uri.equals(currentUri) && loadedModel != null)
+			return loadedModel;
+
+		// Resource resource = resourceSet.createResource(fileURI);
+		Resource resource = null;
+		try {
+			resource = resourceSet.getResource(uri, true);
+		} catch (WrappedException e) {
+			if (e.exception() instanceof UnresolvedReferenceException) {
+				logger.error("Could not load model! Reason: "
+						+ e.exception().getMessage());
+				logger.error("This is intended since currently a PerformanceDataRepository is used!");
+				logger.error("To fix this issue, please remove any 'lastImpact' references from your adaptation process model");
+			}
+			throw e;
+		}
+			
+		try {
+			resource.load(null);
+			logger.info("Model from URI " + uri.toFileString() + " loaded.");
+		} catch (IOException e) {
+			logger.error("Error while loading model " + uri.toFileString(), e);
+			e.printStackTrace();
+		}
+		currentUri = uri;
+		EcoreUtil.resolveAll(resourceSet);
+		loadedModel = resource.getContents().get(0);
+		return resource.getContents().get(0);
+	}
+
+	/**
+	 * Persists the specified <code>obj</code> at the given <code>uri</code>.
+	 * 
+	 * @param uri
+	 * @param obj
+	 * @throws IOException
+	 */
 	public void save(URI uri, EObject obj) throws IOException {
-        if (null == uri) {
-            throw new IllegalArgumentException("Missing file URI.");
-        }
-        Resource resource = resourceSet.createResource(uri);
-        resource.getContents().add(obj);
-        Map<String, Boolean> options = new HashMap<String, Boolean>();
-        options.put(XMIResource.OPTION_SCHEMA_LOCATION, Boolean.TRUE);
-        options.put(XMIResource.OPTION_SAVE_ONLY_IF_CHANGED_MEMORY_BUFFER, Boolean.TRUE);
-        resource.save(options);
-    }
-	
-	/** Convenience method to create an URI.
+		if (null == uri) {
+			throw new IllegalArgumentException("Missing file URI.");
+		}
+		Resource resource = resourceSet.createResource(uri);
+		resource.getContents().add(obj);
+		Map<String, Boolean> options = new HashMap<String, Boolean>();
+		options.put(XMIResource.OPTION_SCHEMA_LOCATION, Boolean.TRUE);
+		options.put(XMIResource.OPTION_SAVE_ONLY_IF_CHANGED_MEMORY_BUFFER,
+				Boolean.TRUE);
+		resource.save(options);
+	}
+
+	/**
+	 * Convenience method to create an URI.
 	 *
 	 * @param projectname
 	 * @param filename
 	 * @param filename_extension
 	 * @return
 	 */
-    public static URI createFileURI(String projectname, String filename, String filename_extension) {
-        if (null == projectname) {
-            throw new IllegalArgumentException("Missing project name.");
-        }
-        if (null == filename) {
-            throw new IllegalArgumentException("Missing file name.");
-        }
-        if (null == filename_extension) {
-            throw new IllegalArgumentException("Missing file name extension.");
-        }
-        /* TODO check for null pointer exceptions */
-        IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot();
-        IProject project = root.getProject(projectname);
-        String projectPath = project.getLocationURI().getPath();
-        URI fileURI = URI.createFileURI(projectPath);
-        return fileURI.appendSegment(filename).appendFileExtension(filename_extension);
-    }
-    
-    /**
-     * Convenience method to determine the current model location.
-     * @return
-     */
-    public URI getCurrentModelUri() {
-        return currentUri;
-    }
+	public static URI createFileURI(String projectname, String filename,
+			String filename_extension) {
+		if (null == projectname) {
+			throw new IllegalArgumentException("Missing project name.");
+		}
+		if (null == filename) {
+			throw new IllegalArgumentException("Missing file name.");
+		}
+		if (null == filename_extension) {
+			throw new IllegalArgumentException("Missing file name extension.");
+		}
+		/* TODO check for null pointer exceptions */
+		IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot();
+		IProject project = root.getProject(projectname);
+		String projectPath = project.getLocationURI().getPath();
+		URI fileURI = URI.createFileURI(projectPath);
+		return fileURI.appendSegment(filename).appendFileExtension(
+				filename_extension);
+	}
+
+	/**
+	 * Convenience method to determine the current model location.
+	 * 
+	 * @return
+	 */
+	public URI getCurrentModelUri() {
+		return currentUri;
+	}
 }

edu.kit.ipd.descartes.adaptation.model/src/edu/kit/ipd/descartes/adaptation/model/dmm/DmlModelLoader.java

@@ -93,7 +93,7 @@ public class DmlModelLoader extends AbstractEcoreModelLoader {
 
     @Override
     public AdaptationProcess load(URI uri) {
-        return (AdaptationProcess) super.load(uri);
+    	return (AdaptationProcess) super.load(uri);
     }
 
     public static void startRecording() {