kafka NoOpTaskWorker 源码
kafka NoOpTaskWorker 代码
文件路径：/trogdor/src/main/java/org/apache/kafka/trogdor/task/NoOpTaskWorker.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.node.TextNode;
import org.apache.kafka.common.internals.KafkaFutureImpl;
import org.apache.kafka.trogdor.common.Platform;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class NoOpTaskWorker implements TaskWorker {
private static final Logger log = LoggerFactory.getLogger(NoOpTaskWorker.class);
private final String id;
private WorkerStatusTracker status;
public NoOpTaskWorker(String id) {
this.id = id;
}
@Override
public void start(Platform platform, WorkerStatusTracker status,
KafkaFutureImpl<String> errorFuture) throws Exception {
log.info("{}: Activating NoOpTask.", id);
this.status = status;
this.status.update(new TextNode("active"));
}
@Override
public void stop(Platform platform) throws Exception {
log.info("{}: Deactivating NoOpTask.", id);
this.status.update(new TextNode("done"));
}
}
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