kafka ClusterImage 源码
kafka ClusterImage 代码
文件路径：/metadata/src/main/java/org/apache/kafka/image/ClusterImage.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.image;
import org.apache.kafka.image.writer.ImageWriter;
import org.apache.kafka.image.writer.ImageWriterOptions;
import org.apache.kafka.metadata.BrokerRegistration;
import java.util.Collections;
import java.util.Map;
import java.util.stream.Collectors;
/**
* Represents the cluster in the metadata image.
*
* This class is thread-safe.
*/
public final class ClusterImage {
public static final ClusterImage EMPTY = new ClusterImage(Collections.emptyMap());
private final Map<Integer, BrokerRegistration> brokers;
public ClusterImage(Map<Integer, BrokerRegistration> brokers) {
this.brokers = Collections.unmodifiableMap(brokers);
}
public boolean isEmpty() {
return brokers.isEmpty();
}
public Map<Integer, BrokerRegistration> brokers() {
return brokers;
}
public BrokerRegistration broker(int nodeId) {
return brokers.get(nodeId);
}
public void write(ImageWriter writer, ImageWriterOptions options) {
for (BrokerRegistration broker : brokers.values()) {
writer.write(broker.toRecord(options));
}
}
@Override
public int hashCode() {
return brokers.hashCode();
}
@Override
public boolean equals(Object o) {
if (!(o instanceof ClusterImage)) return false;
ClusterImage other = (ClusterImage) o;
return brokers.equals(other.brokers);
}
@Override
public String toString() {
return brokers.entrySet().stream().
map(e -> e.getKey() + ":" + e.getValue()).collect(Collectors.joining(", "));
}
}
相关信息
相关文章
0
赞
热门推荐
-
2、 - 优质文章
-
3、 gate.io
-
8、 golang
-
9、 openharmony
-
10、 Vue中input框自动聚焦