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The following commit(s) were added to refs/heads/trunk by this push:
new 87ee1ac7d2 Replace Stream iteration with for-loop for
SimpleRestriction::bindAndGetClusteringElements
87ee1ac7d2 is described below
commit 87ee1ac7d291d64c08f7724c343a51f4e883b123
Author: samueldlightfoot <samueldlightf...@gmail.com>
AuthorDate: Wed Jun 5 08:05:25 2024 +0100
Replace Stream iteration with for-loop for
SimpleRestriction::bindAndGetClusteringElements
patch by Samuel Lightfoot; reviewed by Stefan Miklosovic and Benjamin Lerer
for CASSANDRA-19679
---
CHANGES.txt | 1 +
.../cql3/restrictions/SimpleRestriction.java | 34 ++++++++++++++++++----
2 files changed, 29 insertions(+), 6 deletions(-)
diff --git a/CHANGES.txt b/CHANGES.txt
index 2dcbb6982b..dcb65b604b 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,4 +1,5 @@
5.1
+ * Replace Stream iteration with for-loop for
SimpleRestriction::bindAndGetClusteringElements (CASSANDRA-19679)
* Consolidate logging on trace level (CASSANDRA-19632)
* Expand DDL statements on coordinator before submission to the CMS
(CASSANDRA-19592)
* Fix number of arguments of String.format() in various classes
(CASSANDRA-19645)
diff --git
a/src/java/org/apache/cassandra/cql3/restrictions/SimpleRestriction.java
b/src/java/org/apache/cassandra/cql3/restrictions/SimpleRestriction.java
index 1a4a4f3935..0898cacf43 100644
--- a/src/java/org/apache/cassandra/cql3/restrictions/SimpleRestriction.java
+++ b/src/java/org/apache/cassandra/cql3/restrictions/SimpleRestriction.java
@@ -19,6 +19,8 @@
package org.apache.cassandra.cql3.restrictions;
import java.nio.ByteBuffer;
+import java.util.ArrayList;
+import java.util.Collections;
import java.util.List;
import java.util.stream.Collectors;
@@ -229,18 +231,38 @@ public final class SimpleRestriction implements
SingleRestriction
{
case SINGLE_COLUMN:
case TOKEN:
- return bindAndGet(options).stream()
- .map(b ->
ClusteringElements.of(columnsExpression.columnSpecification(), b))
- .collect(Collectors.toList());
+ return bindAndGetSingleTermClusteringElements(options);
case MULTI_COLUMN:
- return bindAndGetElements(options).stream()
- .map(buffers ->
ClusteringElements.of(columnsExpression.columns(), buffers))
-
.collect(Collectors.toList());
+ return bindAndGetMultiTermClusteringElements(options);
default:
throw new UnsupportedOperationException();
}
}
+ private List<ClusteringElements>
bindAndGetSingleTermClusteringElements(QueryOptions options)
+ {
+ List<ByteBuffer> values = bindAndGet(options);
+ if (values.isEmpty())
+ return Collections.emptyList();
+
+ List<ClusteringElements> elements = new ArrayList<>(values.size());
+ for (int i = 0; i < values.size(); i++)
+
elements.add(ClusteringElements.of(columnsExpression.columnSpecification(),
values.get(i)));
+ return elements;
+ }
+
+ private List<ClusteringElements>
bindAndGetMultiTermClusteringElements(QueryOptions options)
+ {
+ List<List<ByteBuffer>> values = bindAndGetElements(options);
+ if (values.isEmpty())
+ return Collections.emptyList();
+
+ List<ClusteringElements> elements = new ArrayList<>(values.size());
+ for (int i = 0; i < values.size(); i++)
+ elements.add(ClusteringElements.of(columnsExpression.columns(),
values.get(i)));
+ return elements;
+ }
+
private List<ByteBuffer> bindAndGet(QueryOptions options)
{
List<ByteBuffer> buffers = values.bindAndGet(options);
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