Added useful overloaded method

src/main/java/org/gcube/informationsystem/resourceregistry/api/contexts/ContextCache.java

@@ -159,6 +159,11 @@ public class ContextCache {
 		return uuidToContextFullName.get(uuid);		
 	}
 	
+	public synchronized String getContextFullNameByUUID(String uuid) throws ResourceRegistryException {
+		refreshContextsIfNeeded();
+		return uuidToContextFullName.get(UUID.fromString(uuid));		
+	}
+	
 	public synchronized UUID getUUIDByFullName(String contextFullName) throws ResourceRegistryException {
 		refreshContextsIfNeeded();
 		return contextFullNameToUUID.get(contextFullName);
@@ -169,6 +174,11 @@ public class ContextCache {
 		return uuidToContext.get(uuid);
 	}
 	
+	public synchronized Context getContextByUUID(String uuid) throws ResourceRegistryException {
+		refreshContextsIfNeeded();
+		return uuidToContext.get(UUID.fromString(uuid));
+	}
+	
 	public synchronized Context getContextByFullName(String contextFullName) throws ResourceRegistryException {
 		UUID uuid = getUUIDByFullName(contextFullName);
 		return uuidToContext.get(uuid);