Github user michaelandrepearce commented on a diff in the pull request:
https://github.com/apache/activemq-artemis/pull/1607#discussion_r146868313
--- Diff:
integration/activemq-kafka/activemq-kafka-bridge/src/main/java/org/apache/activemq/artemis/integration/kafka/bridge/GroupIdPartitioner.java
---
@@ -0,0 +1,57 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.activemq.artemis.integration.kafka.bridge;
+
+import java.util.List;
+import java.util.Map;
+
+import org.apache.activemq.artemis.api.core.Message;
+import org.apache.activemq.artemis.api.core.SimpleString;
+import org.apache.kafka.clients.producer.Partitioner;
+import org.apache.kafka.clients.producer.internals.DefaultPartitioner;
+import org.apache.kafka.common.Cluster;
+import org.apache.kafka.common.utils.Utils;
+
+public class GroupIdPartitioner implements Partitioner {
+
+ DefaultPartitioner defaultPartitioner = new DefaultPartitioner();
+
+ @Override
+ public int partition(String topic, Object key, byte[] keyBytes, Object
value, byte[] valueBytes, Cluster cluster) {
+ Message message = (Message) value;
+ final SimpleString groupdID = message.getGroupID();
+ //If GroupID (a.k.a JMSXMessageGroup) then to honour this we
partition based on it.
--- End diff --
good point.
---
