Adds a warning when no activation transformation for a profile exists.

Core/core/src/main/java/org/codeling/interprofile/internal/InterProfileTransformation.java

@@ -6,14 +6,18 @@ import org.codeling.interprofile.IInterprofileTransformation;
 import org.codeling.lang.base.modeltrans.henshin.HenshinTransformation;
 import org.codeling.languageregistry.LanguageDefinition;
 import org.codeling.transformationmanager.TransformationResult;
+import org.codeling.utils.CodelingLogger;
 import org.codeling.utils.IDRegistry;
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.core.runtime.SubMonitor;
 import org.eclipse.emf.common.util.URI;
 import org.eclipse.emf.ecore.EObject;
+import org.eclipse.emf.ecore.resource.impl.ResourceSetImpl;
 
 public class InterProfileTransformation implements IInterprofileTransformation {
 
+	CodelingLogger log = new CodelingLogger(this.getClass());
+	
 	@Override
 	public TransformationResult transform(LanguageDefinition sourceLanguage, LanguageDefinition targetLanguage,
 			List<EObject> priorModelRoots, IDRegistry priorIdRegistry, String taskName,
@@ -42,6 +46,12 @@ public class InterProfileTransformation implements IInterprofileTransformation {
 		monitor.setWorkRemaining(sourceToTargetTransformationURIs.size());
 		for (final URI transformationURI : sourceToTargetTransformationURIs) {
 			monitor.setTaskName("Executing " + transformationURI);
+			if(!new ResourceSetImpl().getURIConverter().exists(transformationURI, null)) {
+				// No activation file exists.
+				log.warning("No profile activation transformation exists at the uri "+transformationURI+". I will just ignore that.");
+				continue;
+			}
+			
 			final HenshinTransformation task = new HenshinTransformation(transformationURI, taskName,
 					intermediateIDRegistry, intermediateModelRoots, monitor);
 			// Execute task

Utilities/utils/src/main/java/org/codeling/utils/CodelingLogger.java

@@ -30,6 +30,10 @@ public class CodelingLogger {
 	public void warning(String message, Throwable t) {
 		addLogEntry(IStatus.WARNING, message, t);
 	}
+	
+	public void warning(String message) {
+		addLogEntry(IStatus.WARNING, message, null);
+	}
 
 	public void error(String message, Throwable t) {
 		addLogEntry(IStatus.ERROR, message, t);