kafka WorkerState 源码
kafka WorkerState 代码
文件路径：/trogdor/src/main/java/org/apache/kafka/trogdor/rest/WorkerState.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.rest;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.annotation.JsonSubTypes;
import com.fasterxml.jackson.annotation.JsonTypeInfo;
import com.fasterxml.jackson.databind.JsonNode;
import org.apache.kafka.common.KafkaException;
import org.apache.kafka.trogdor.task.TaskSpec;
/**
* The state which a worker is in on the Agent.
*/
@JsonTypeInfo(use = JsonTypeInfo.Id.NAME,
include = JsonTypeInfo.As.PROPERTY,
property = "state")
@JsonSubTypes(value = {
@JsonSubTypes.Type(value = WorkerReceiving.class, name = "RECEIVING"),
@JsonSubTypes.Type(value = WorkerStarting.class, name = "STARTING"),
@JsonSubTypes.Type(value = WorkerRunning.class, name = "RUNNING"),
@JsonSubTypes.Type(value = WorkerStopping.class, name = "STOPPING"),
@JsonSubTypes.Type(value = WorkerDone.class, name = "DONE")
})
public abstract class WorkerState extends Message {
private final String taskId;
private final TaskSpec spec;
public WorkerState(String taskId, TaskSpec spec) {
this.taskId = taskId;
this.spec = spec;
}
@JsonProperty
public String taskId() {
return taskId;
}
@JsonProperty
public TaskSpec spec() {
return spec;
}
public boolean stopping() {
return false;
}
public boolean done() {
return false;
}
public long startedMs() {
throw new KafkaException("invalid state");
}
public abstract JsonNode status();
public boolean running() {
return false;
}
}
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