[GitHub] [shardingsphere] zjcnb commented on a change in pull request #14856: Fix weight load balance throw IndexOutOfBoundsException.

[GitBox <gi...@apache.org>]

zjcnb commented on a change in pull request #14856:
URL: https://github.com/apache/shardingsphere/pull/14856#discussion_r786463040



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File path: shardingsphere-features/shardingsphere-readwrite-splitting/shardingsphere-readwrite-splitting-core/src/main/java/org/apache/shardingsphere/readwritesplitting/algorithm/loadbalance/WeightReplicaLoadBalanceAlgorithm.java
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@@ -53,6 +53,9 @@ public String getDataSource(final String name, final String writeDataSourceName,
     }
 
     private String getDataSourceName(final List<String> readDataSourceNames, final double[] weight) {
+        if (1 == readDataSourceNames.size()) {
+            return readDataSourceNames.stream().findFirst().get();

Review comment:
       I will adjust get(0).




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