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Nodes::asImmutableChild: use null parent if none found

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This commit is contained in:
Paul Campbell 2016-09-20 23:35:27 +01:00
parent e61f6db9cf
commit 2226d61b46
1 changed files with 5 additions and 10 deletions
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9
src/main/java/net/kemitix/node/Nodes.java
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@ -25,7 +25,6 @@ SOFTWARE.
package net.kemitix.node;
import java.util.HashSet;
import java.util.Optional;
import java.util.Set;
import java.util.stream.Collectors;
@ -121,15 +120,11 @@ public final class Nodes {
private static <T> Node<T> asImmutableChild(
final Node<T> source
) {
final Optional<Node<T>> sourceParent = source.getParent();
if (sourceParent.isPresent()) {
return ImmutableNodeItem.newChild(source.getData()
.orElse(null), source.getName(), sourceParent.get(),
.orElse(null), source.getName(), source.getParent()
.orElse(null),
getImmutableChildren(source)
);
} else {
throw new IllegalArgumentException("source must not be the root node");
}
}
}