org.apache.kafka.connect.health.AbstractState Maven / Gradle / Ivy
/*
* 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.connect.health;
import java.util.Objects;
import org.apache.kafka.common.utils.Utils;
/**
* Provides the current status for a connector or a task, along with an identifier for its Connect worker
*/
public abstract class AbstractState {
private final String state;
private final String traceMessage;
private final String workerId;
/**
* Construct a state for a connector or task.
*
* @param state the status of a connector or task; may not be null or empty
* @param workerId the workerId associated with the connector or the task; may not be null or empty
* @param traceMessage any error trace message associated with the connector or the task; may be null or empty
*/
public AbstractState(String state, String workerId, String traceMessage) {
if (Utils.isBlank(state)) {
throw new IllegalArgumentException("State must not be null or empty");
}
if (Utils.isBlank(workerId)) {
throw new IllegalArgumentException("Worker ID must not be null or empty");
}
this.state = state;
this.workerId = workerId;
this.traceMessage = traceMessage;
}
/**
* Provides the current state of the connector or task.
*
* @return state, never {@code null} or empty
*/
public String state() {
return state;
}
/**
* The identifier of the worker associated with the connector or the task.
*
* @return workerId, never {@code null} or empty.
*/
public String workerId() {
return workerId;
}
/**
* The error message associated with the connector or task.
*
* @return traceMessage, can be {@code null} or empty.
*/
public String traceMessage() {
return traceMessage;
}
@Override
public boolean equals(Object o) {
if (this == o)
return true;
if (o == null || getClass() != o.getClass())
return false;
AbstractState that = (AbstractState) o;
return state.equals(that.state)
&& Objects.equals(traceMessage, that.traceMessage)
&& workerId.equals(that.workerId);
}
@Override
public int hashCode() {
return Objects.hash(state, traceMessage, workerId);
}
}