From fe574773ff28aec5b13e688fedc7ee20e26d766d Mon Sep 17 00:00:00 2001
From: Daniel Ratiu <ratiu@fortiss.org>
Date: Sat, 22 Oct 2011 11:00:05 +0000
Subject: [PATCH] fixing the Simple Traffic Lights controller test +
beautifying the code refs 222
---
.../tooling/kernel/utils/EcoreUtils.java | 21 +++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/org.fortiss.tooling.kernel/trunk/src/org/fortiss/tooling/kernel/utils/EcoreUtils.java b/org.fortiss.tooling.kernel/trunk/src/org/fortiss/tooling/kernel/utils/EcoreUtils.java
index c67f1677d..5e75b9dba 100644
--- a/org.fortiss.tooling.kernel/trunk/src/org/fortiss/tooling/kernel/utils/EcoreUtils.java
+++ b/org.fortiss.tooling.kernel/trunk/src/org/fortiss/tooling/kernel/utils/EcoreUtils.java
@@ -72,4 +72,25 @@ public class EcoreUtils {
result.add((T) sourceElement);
return ECollections.unmodifiableEList(result);
}
+
+ /**
+ * From a given EList with source objects of type S pick the first object
+ * with type T, whereby T is a sub-type of S.
+ *
+ * @param targetClass
+ * - a class representing type T
+ * @param sourceList
+ * - an EList with objects of type S
+ * @return an object of type T or null if none exists
+ */
+ @SuppressWarnings("unchecked")
+ public static <S, T extends S> T pickFirstInstanceOf(Class<T> targetClass,
+ EList<S> sourceList) {
+ if (sourceList == null)
+ return null;
+ for (S sourceElement : sourceList)
+ if (targetClass.isAssignableFrom(sourceElement.getClass()))
+ return (T) sourceElement;
+ return null;
+ }
}
--
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