ShannonDing commented on code in PR #4775:
URL: https://github.com/apache/rocketmq/pull/4775#discussion_r937519054
##########
client/src/main/java/org/apache/rocketmq/client/impl/consumer/DefaultLitePullConsumerImpl.java:
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@@ -531,6 +533,17 @@ public synchronized void assign(Collection<MessageQueue>
messageQueues) {
}
}
+ public synchronized void setSubExpression4Assgin(final String topic, final
String subExpression) {
+ if (subExpression == null || "".equals(subExpression)) {
Review Comment:
StringUtils.isEmpty is suggested.
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