kafka RemoteClusterUtils 源码
kafka RemoteClusterUtils 代码
文件路径:/connect/mirror-client/src/main/java/org/apache/kafka/connect/mirror/RemoteClusterUtils.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.mirror;
import org.apache.kafka.common.TopicPartition;
import org.apache.kafka.clients.consumer.OffsetAndMetadata;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.TimeoutException;
import java.time.Duration;
/** Convenience methods for multi-cluster environments. Wraps MirrorClient (@see MirrorClient).
* <p>
* Properties passed to these methods are used to construct internal Admin and Consumer clients.
* Sub-configs like "admin.xyz" are also supported. For example:
* </p>
* <pre>
* bootstrap.servers = host1:9092
* consumer.client.id = mm2-client
* </pre>
* <p>
* @see MirrorClientConfig for additional properties used by the internal MirrorClient.
* </p>
*/
public final class RemoteClusterUtils {
// utility class
private RemoteClusterUtils() {}
/** Find shortest number of hops from an upstream cluster.
* Returns -1 if the cluster is unreachable */
public static int replicationHops(Map<String, Object> properties, String upstreamClusterAlias)
throws InterruptedException, TimeoutException {
try (MirrorClient client = new MirrorClient(properties)) {
return client.replicationHops(upstreamClusterAlias);
}
}
/** Find all heartbeat topics */
public static Set<String> heartbeatTopics(Map<String, Object> properties)
throws InterruptedException, TimeoutException {
try (MirrorClient client = new MirrorClient(properties)) {
return client.heartbeatTopics();
}
}
/** Find all checkpoint topics */
public static Set<String> checkpointTopics(Map<String, Object> properties)
throws InterruptedException, TimeoutException {
try (MirrorClient client = new MirrorClient(properties)) {
return client.checkpointTopics();
}
}
/** Find all upstream clusters */
public static Set<String> upstreamClusters(Map<String, Object> properties)
throws InterruptedException, TimeoutException {
try (MirrorClient client = new MirrorClient(properties)) {
return client.upstreamClusters();
}
}
/** Translate a remote consumer group's offsets into corresponding local offsets. Topics are automatically
* renamed according to the ReplicationPolicy.
* @param properties @see MirrorClientConfig
* @param consumerGroupId group ID of remote consumer group
* @param remoteClusterAlias alias of remote cluster
* @param timeout timeout
*/
public static Map<TopicPartition, OffsetAndMetadata> translateOffsets(Map<String, Object> properties,
String remoteClusterAlias, String consumerGroupId, Duration timeout)
throws InterruptedException, TimeoutException {
try (MirrorClient client = new MirrorClient(properties)) {
return client.remoteConsumerOffsets(consumerGroupId, remoteClusterAlias, timeout);
}
}
}
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