duhengforever commented on a change in pull request #358: [ISSUE #292] Add
support of transactional message feature
URL: https://github.com/apache/rocketmq/pull/358#discussion_r202048865
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File path:
broker/src/main/java/org/apache/rocketmq/broker/client/ProducerManager.java
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@@ -185,4 +190,33 @@ public void unregisterProducer(final String group, final
ClientChannelInfo clien
log.error("", e);
}
}
+
+ public Channel getAvaliableChannel(String groupId) {
+ HashMap<Channel, ClientChannelInfo> channelClientChannelInfoHashMap =
groupChannelTable.get(groupId);
+ List<Channel> channelList = new ArrayList<Channel>();
+ if (channelClientChannelInfoHashMap != null) {
+ for (Channel channel : channelClientChannelInfoHashMap.keySet()) {
+ channelList.add(channel);
+ }
+ int size = channelList.size();
+ if (0 == size) {
+ log.warn("Channel list is empty. groupId={}", groupId);
+ return null;
+ }
+
+ int index = positiveAtomicCounter.incrementAndGet() % size;
+ Channel channel = channelList.get(index);
+ int count = 0;
+ boolean isOk = channel.isActive() && channel.isWritable();
+ while (isOk && count++ < 3) {
Review comment:
I will use a constant to represent this value, which represents the number
of retries for fetch an available channel.
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