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SOLR-13454: Fix the method's behavior which caused test failures due to collections disappearing during iteration.

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This commit is contained in:
Andrzej Bialecki 2019-05-14 14:09:24 +02:00
parent 65d9b4979f
commit 12957fcd22
1 changed files with 10 additions and 1 deletions
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11
solr/solrj/src/java/org/apache/solr/common/cloud/ClusterState.java
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@ -353,10 +353,19 @@ public class ClusterState implements JSONWriter.Writable {
public Map<String, CollectionRef> getCollectionStates() {
return immutableCollectionStates;
}
/**
* Iterate over collections. Unlike {@link #getCollectionStates()} collections passed to the
* consumer are guaranteed to exist.
* @param consumer collection consumer.
*/
public void forEachCollection(Consumer<DocCollection> consumer) {
collectionStates.forEach((s, collectionRef) -> {
try {
consumer.accept(collectionRef.get());
DocCollection collection = collectionRef.get();
if (collection != null) {
consumer.accept(collection);
}
} catch (SolrException e) {
if (e.getCause() instanceof KeeperException.NoNodeException) {
//don't do anything. This collection does not exist