kafka NetworkPartitionFaultSpec 源码
kafka NetworkPartitionFaultSpec 代码
文件路径：/trogdor/src/main/java/org/apache/kafka/trogdor/fault/NetworkPartitionFaultSpec.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.fault;
import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import org.apache.kafka.trogdor.task.TaskController;
import org.apache.kafka.trogdor.task.TaskSpec;
import org.apache.kafka.trogdor.task.TaskWorker;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
/**
* The specification for a fault that creates a network partition.
*/
public class NetworkPartitionFaultSpec extends TaskSpec {
private final List<List<String>> partitions;
@JsonCreator
public NetworkPartitionFaultSpec(@JsonProperty("startMs") long startMs,
@JsonProperty("durationMs") long durationMs,
@JsonProperty("partitions") List<List<String>> partitions) {
super(startMs, durationMs);
this.partitions = partitions == null ? new ArrayList<List<String>>() : partitions;
}
@JsonProperty
public List<List<String>> partitions() {
return partitions;
}
@Override
public TaskController newController(String id) {
return new NetworkPartitionFaultController(partitionSets());
}
@Override
public TaskWorker newTaskWorker(String id) {
return new NetworkPartitionFaultWorker(id, partitionSets());
}
private List<Set<String>> partitionSets() {
List<Set<String>> partitionSets = new ArrayList<>();
HashSet<String> prevNodes = new HashSet<>();
for (List<String> partition : this.partitions()) {
for (String nodeName : partition) {
if (prevNodes.contains(nodeName)) {
throw new RuntimeException("Node " + nodeName +
" appears in more than one partition.");
}
prevNodes.add(nodeName);
partitionSets.add(new HashSet<>(partition));
}
}
return partitionSets;
}
}
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