Ordered execution of inter-profile transformations

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

@@ -2,6 +2,7 @@ package org.codeling.interprofile.internal;
 
 import java.text.MessageFormat;
 import java.util.Arrays;
+import java.util.Comparator;
 import java.util.LinkedList;
 import java.util.List;
 
@@ -115,7 +116,7 @@ public class LanguageMatcher {
 		// Add transformations for "activating" missing profiles, that e.g. just add
 		// "ArchitectureWithDeployments" etc.
 		addTransformationsIfSourcesMisses(possiblyMissingProfiles.toArray(new Profiles[0]), result);
-
+		orderTransformationsByDependency(result);
 		return result;
 	}
 
@@ -127,6 +128,29 @@ public class LanguageMatcher {
 			}
 	}
 
+	/**
+	 * Orders the transformation URIs by dependencies. Currently hard coded. A
+	 * dependency declaration might be considered when the number of profiles
+	 * increases significantly.
+	 */
+	private void orderTransformationsByDependency(List<URI> result) {
+		result.sort(new Comparator<URI>() {
+			public int compare(URI o1, URI o2) {
+				// Shortens from http://abc.de/.../1.0 to http://abc.de/...
+				String shortenedO1 = o1.toString().substring(0, o1.toString().lastIndexOf("/"));
+				String shortenedO2 = o2.toString().substring(0, o1.toString().lastIndexOf("/"));
+				
+				if(shortenedO1.contains(shortenedO2))
+					return 1;
+				else if(shortenedO1.contains(shortenedO2))
+					return -1;
+				else
+					// Order alphabetically
+					return shortenedO1.compareTo(shortenedO2);
+			};
+		});
+	}
+
 	private boolean addTransformationIfApplicable(Profiles sourceProfile, Profiles[] possibleTargets,
 			List<URI> result) {
 		boolean changed = false;