Github user srdo commented on a diff in the pull request:
https://github.com/apache/storm/pull/1825#discussion_r92850572
--- Diff:
external/storm-kafka-client/src/main/java/org/apache/storm/kafka/spout/KafkaSpoutConfig.java
---
@@ -230,8 +237,37 @@ public Builder(Map<String, Object> kafkaProps,
KafkaSpoutStreams kafkaSpoutStrea
}
public KafkaSpoutConfig<K,V> build() {
+ validate();
return new KafkaSpoutConfig<>(this);
}
+
+ /**
+ * Defines whether the consumer manages partition manually.
+ * If set to true, the consumer behaves like a simple consumer,
otherwise it will rely on kafka to do partition assignment.
+ * @param manualPartitionAssign Whether use manual partition
assignment.
+ */
+ public Builder setManualPartitionAssign(boolean
manualPartitionAssign) {
+ this.manualPartitionAssign = manualPartitionAssign;
+ return this;
+ }
+
+ /**
+ * Defines partition refresh period in the manual partition assign
model.
+ * @param partitionRefreshPeriodMs Partition refresh period in ms.
+ */
+ public Builder setPartitionRefreshPeriodMs(int
partitionRefreshPeriodMs) {
+ this.partitionRefreshPeriodMs = partitionRefreshPeriodMs;
+ return this;
+ }
+
+ /**
+ * Validate configs before build.
+ */
+ private void validate() {
+ if (this.manualPartitionAssign && kafkaSpoutStreams instanceof
KafkaSpoutStreamsWildcardTopics) {
+ throw new IllegalArgumentException("Manual partition
assign can't be used with wildcard topics!");
--- End diff --
assign -> assignment
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