Cleanup use of Guava library

[yangtools.git] / yang / yang-data-impl / src / main / java / org / opendaylight / yangtools / yang / data / impl / schema / tree / OrderedLeafSetModificationStrategy.java

diff --git a/yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/OrderedLeafSetModificationStrategy.java b/yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/OrderedLeafSetModificationStrategy.java
index f58cf4b672de6cfdda102be6abfa409e6e4949f7..637b8446dabacd80974bc026a2dc6eb4cc5e65ca 100644 (file)
--- a/yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/OrderedLeafSetModificationStrategy.java
+++ b/yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/OrderedLeafSetModificationStrategy.java
@@ -9,8 +9,9 @@ package org.opendaylight.yangtools.yang.data.impl.schema.tree;
 
 import static com.google.common.base.Preconditions.checkArgument;
 
-import com.google.common.base.Optional;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
+import java.util.Optional;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeWithValue;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
 import org.opendaylight.yangtools.yang.data.api.schema.LeafSetNode;
 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
 import org.opendaylight.yangtools.yang.data.api.schema.OrderedLeafSetNode;
@@ -48,10 +49,7 @@ final class OrderedLeafSetModificationStrategy extends AbstractNodeContainerModi
     }
 
     @Override
-    public Optional<ModificationApplyOperation> getChild(final YangInstanceIdentifier.PathArgument identifier) {
-        if (identifier instanceof YangInstanceIdentifier.NodeWithValue) {
-            return entryStrategy;
-        }
-        return Optional.absent();
+    public Optional<ModificationApplyOperation> getChild(final PathArgument identifier) {
+        return identifier instanceof NodeWithValue ? entryStrategy : Optional.empty();
     }
 }
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