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https://issues.apache.org/jira/browse/SOLR-17535?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David Smiley resolved SOLR-17535.
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Fix Version/s: 9.8
Resolution: Fixed
Deprecated with replacements in 9.8. Removals of this and other stuff can
happen later in 10.
> Remove ClusterState.getCollectionStates() and getCollectionsMap()
> -----------------------------------------------------------------
>
> Key: SOLR-17535
> URL: https://issues.apache.org/jira/browse/SOLR-17535
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Components: SolrCloud
> Reporter: David Smiley
> Assignee: David Smiley
> Priority: Major
> Labels: pull-request-available
> Fix For: 9.8
>
> Time Spent: 4h 40m
> Remaining Estimate: 0h
>
> To avoid creating intermediary maps for ClusterState consumers, and to limit
> the direct usages of CollectionRef, I propose removing both
> getCollectionStates and getCollectionsMap. This refactoring helps with any
> future evolution of ClusterState. Instead, callers can use forEachCollection
> or a new {{Stream<DocCollection>}} one proposed here.
> {code:java}
> /** Streams the resolved DocCollections. Use this sparingly in case there
> are many collections. */
> public Stream<DocCollection> collectionStream() {
> return
> collectionStates.values().stream().map(CollectionRef::get).filter(Objects::nonNull);
> }
> {code}
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