Do not allow transaction creation with an empty shard map.

[mdsal.git] / dom / mdsal-dom-broker / src / main / java / org / opendaylight / mdsal / dom / broker / ProducerLayout.java

diff --git a/dom/mdsal-dom-broker/src/main/java/org/opendaylight/mdsal/dom/broker/ProducerLayout.java b/dom/mdsal-dom-broker/src/main/java/org/opendaylight/mdsal/dom/broker/ProducerLayout.java
index fccf22ddb8d6d6ded0ccddce39eaa343d42abf8b..209cdd67f8f82a7fffd279e1ef286f5bebe62f8e 100644 (file)
--- a/dom/mdsal-dom-broker/src/main/java/org/opendaylight/mdsal/dom/broker/ProducerLayout.java
+++ b/dom/mdsal-dom-broker/src/main/java/org/opendaylight/mdsal/dom/broker/ProducerLayout.java
@@ -130,6 +130,8 @@ final class ProducerLayout {
     }
 
     Map<DOMDataTreeIdentifier, DOMDataTreeShardWriteTransaction> createTransactions() {
+        Preconditions.checkState(!idToProducer.isEmpty(),
+                "Cannot create transaction since the producer is not mapped to any shard");
         return Maps.transformValues(idToProducer, DOMDataTreeShardProducer::createTransaction);
     }
 }