kafka DelayedHeartbeat 源码
kafka DelayedHeartbeat 代码
文件路径：/core/src/main/scala/kafka/coordinator/group/DelayedHeartbeat.scala
/**
* 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 kafka.coordinator.group
import kafka.server.DelayedOperation
/**
* Delayed heartbeat operations that are added to the purgatory for session timeout checking.
* Heartbeats are paused during rebalance.
*/
private[group] class DelayedHeartbeat(coordinator: GroupCoordinator,
group: GroupMetadata,
memberId: String,
isPending: Boolean,
timeoutMs: Long)
extends DelayedOperation(timeoutMs, Some(group.lock)) {
override def tryComplete(): Boolean = coordinator.tryCompleteHeartbeat(group, memberId, isPending, forceComplete _)
override def onExpiration(): Unit = coordinator.onExpireHeartbeat(group, memberId, isPending)
override def onComplete(): Unit = {}
}
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