kafka ConnectorTaskId 源码

  • 2022-10-20
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kafka ConnectorTaskId 代码

文件路径:/connect/runtime/src/main/java/org/apache/kafka/connect/util/ConnectorTaskId.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.connect.util;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;

import java.io.Serializable;
import java.util.Objects;

/**
 * Unique ID for a single task. It includes a unique connector ID and a task ID that is unique within
 * the connector.
 */
public class ConnectorTaskId implements Serializable, Comparable<ConnectorTaskId> {
    private final String connector;
    private final int task;

    @JsonCreator
    public ConnectorTaskId(@JsonProperty("connector") String connector, @JsonProperty("task") int task) {
        this.connector = connector;
        this.task = task;
    }

    @JsonProperty
    public String connector() {
        return connector;
    }

    @JsonProperty
    public int task() {
        return task;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o)
            return true;
        if (o == null || getClass() != o.getClass())
            return false;

        ConnectorTaskId that = (ConnectorTaskId) o;

        if (task != that.task)
            return false;

        return Objects.equals(connector, that.connector);
    }

    @Override
    public int hashCode() {
        int result = connector != null ? connector.hashCode() : 0;
        result = 31 * result + task;
        return result;
    }

    @Override
    public String toString() {
        return connector + '-' + task;
    }

    @Override
    public int compareTo(ConnectorTaskId o) {
        int connectorCmp = connector.compareTo(o.connector);
        if (connectorCmp != 0)
            return connectorCmp;
        return Integer.compare(task, o.task);
    }
}

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