private RemotingCommand updateAndCreateTopic(ChannelHandlerContext ctx, RemotingCommand request)
throws RemotingCommandException {
final RemotingCommand response = RemotingCommand.createResponseCommand(null);
final CreateTopicRequestHeader requestHeader =
(CreateTopicRequestHeader)
request.decodeCommandCustomHeader(CreateTopicRequestHeader.class);
log.info(
"updateAndCreateTopic called by {}", RemotingHelper.parseChannelRemoteAddr(ctx.channel()));
// Topic名字是否与保留字段冲突
if (requestHeader
.getTopic()
.equals(this.brokerController.getBrokerConfig().getBrokerClusterName())) {
String errorMsg =
"the topic[" + requestHeader.getTopic() + "] is conflict with system reserved words.";
log.warn(errorMsg);
response.setCode(ResponseCode.SYSTEM_ERROR_VALUE);
response.setRemark(errorMsg);
return response;
}
TopicConfig topicConfig = new TopicConfig(requestHeader.getTopic());
topicConfig.setReadQueueNums(requestHeader.getReadQueueNums());
topicConfig.setWriteQueueNums(requestHeader.getWriteQueueNums());
topicConfig.setTopicFilterType(requestHeader.getTopicFilterTypeEnum());
topicConfig.setPerm(requestHeader.getPerm());
this.brokerController.getTopicConfigManager().updateTopicConfig(topicConfig);
response.setCode(ResponseCode.SUCCESS_VALUE);
response.setRemark(null);
return response;
}
/** 发消息时，如果Topic不存在，尝试创建 */
public TopicConfig createTopicInSendMessageMethod(
final String topic,
final String defaultTopic,
final String remoteAddress,
final int clientDefaultTopicQueueNums) {
TopicConfig topicConfig = null;
boolean createNew = false;
try {
if (this.lockTopicConfigTable.tryLock(LockTimeoutMillis, TimeUnit.MILLISECONDS)) {
try {
topicConfig = this.topicConfigTable.get(topic);
if (topicConfig != null) return topicConfig;
TopicConfig defaultTopicConfig = this.topicConfigTable.get(defaultTopic);
if (defaultTopicConfig != null) {
if (PermName.isInherited(defaultTopicConfig.getPerm())) {
topicConfig = new TopicConfig(topic);
int queueNums =
clientDefaultTopicQueueNums > defaultTopicConfig.getWriteQueueNums()
? defaultTopicConfig.getWriteQueueNums()
: clientDefaultTopicQueueNums;
if (queueNums < 0) {
queueNums = 0;
}
topicConfig.setReadQueueNums(queueNums);
topicConfig.setWriteQueueNums(queueNums);
int perm = defaultTopicConfig.getPerm();
perm &= ~PermName.PERM_INHERIT;
topicConfig.setPerm(perm);
topicConfig.setTopicFilterType(defaultTopicConfig.getTopicFilterType());
} else {
log.warn(
"create new topic failed, because the default topic["
+ defaultTopic
+ "] no perm, "
+ defaultTopicConfig.getPerm()
+ " producer: "
+ remoteAddress);
}
} else {
log.warn(
"create new topic failed, because the default topic["
+ defaultTopic
+ "] not exist."
+ " producer: "
+ remoteAddress);
}
if (topicConfig != null) {
log.info(
"create new topic by default topic["
+ defaultTopic
+ "], "
+ topicConfig
+ " producer: "
+ remoteAddress);
this.topicConfigTable.put(topic, topicConfig);
createNew = true;
this.persist();
}
} finally {
this.lockTopicConfigTable.unlock();
}
}
} catch (InterruptedException e) {
log.error("createTopicInSendMessageMethod exception", e);
}
if (createNew) {
this.brokerController.registerBrokerAll();
}
return topicConfig;
}
