YELLOW (re-factored the method getTracesFromExternalRelSpec used in expressions)

org.fortiss.af3.mira/trunk/src/org/fortiss/af3/mira/utils/MiraUtils.java

@@ -28,8 +28,10 @@ import java.util.Arrays;
 import java.util.Collection;
 import java.util.Comparator;
 import java.util.List;
+import java.util.Set;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
+import java.util.stream.Collectors;
 
 import org.apache.commons.lang.StringUtils;
 import org.eclipse.emf.common.util.EList;
@@ -83,7 +85,7 @@ import org.fortiss.tooling.kernel.service.ICommandStackService;
  * @author mou
  * @author $Author$
  * @version $Rev$
- * @ConQAT.Rating YELLOW Hash: 171E39E5B8EF4255D1BC5E169494A1BE
+ * @ConQAT.Rating YELLOW Hash: 93B0241D56993B637A04BDDEBAA4CC8C
  */
 
 public class MiraUtils {
@@ -1042,4 +1044,14 @@ public class MiraUtils {
 		}
 		return ts;
 	}
+
+	/**
+	 * Given a list of external relation specifications, it
+	 * returns a set with the IDs of the source requirements.
+	 */
+	public static Set<String> getTracesFromExternalRelSpec(
+			EList<ExternalRelationSpecification> specs) {
+		return specs.stream().map(e -> e.getExternalRelation().getSourceRequirement().getReqId())
+				.collect(Collectors.toSet());
+	}
 }