kafka AgentWorkerStatusTracker 源码
kafka AgentWorkerStatusTracker 代码
文件路径：/trogdor/src/main/java/org/apache/kafka/trogdor/task/AgentWorkerStatusTracker.java
/*
* 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.kafka.trogdor.task;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.node.NullNode;
/**
* Tracks the status of a Trogdor worker.
*/
public class AgentWorkerStatusTracker implements WorkerStatusTracker {
private JsonNode status = NullNode.instance;
@Override
public void update(JsonNode newStatus) {
JsonNode status = newStatus.deepCopy();
synchronized (this) {
this.status = status;
}
}
/**
* Retrieves the status.
*/
public synchronized JsonNode get() {
return status;
}
}
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