content: /*
   * 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.celeborn.common.write;
  
  import java.io.Serializable;
  import java.util.*;
  import java.util.concurrent.ConcurrentHashMap;
  
  import org.apache.commons.lang3.StringUtils;
  
  import org.apache.celeborn.common.util.JavaUtils;
  import org.apache.celeborn.common.util.Utils;
  
  public class LocationPushFailedBatches implements Serializable {
  
    // map-attempt-id -> failed batch ids
    private final Map<String, Set<Integer>> failedBatches = JavaUtils.newConcurrentHashMap();
  
    public Map<String, Set<Integer>> getFailedBatches() {
      return failedBatches;
    }
  
    public boolean contains(int mapId, int attemptId, int batchId) {
      Set<Integer> batches = failedBatches.get(Utils.makeAttemptKey(mapId, attemptId));
      return batches != null && batches.contains(batchId);
    }
  
    public void merge(LocationPushFailedBatches batches) {
      Map<String, Set<Integer>> otherFailedBatchesMap = batches.getFailedBatches();
      otherFailedBatchesMap.forEach(
          (k, v) -> {
            Set<Integer> failedBatches =
                this.failedBatches.computeIfAbsent(k, (s) -> ConcurrentHashMap.newKeySet());
            failedBatches.addAll(v);
          });
    }
  
    public void addFailedBatch(int mapId, int attemptId, int batchId) {
      String attemptKey = Utils.makeAttemptKey(mapId, attemptId);
      Set<Integer> failedBatches =
          this.failedBatches.computeIfAbsent(attemptKey, (s) -> ConcurrentHashMap.newKeySet());
      failedBatches.add(batchId);
    }
  
    @Override
    public boolean equals(Object o) {
      if (o == null || getClass() != o.getClass()) return false;
      LocationPushFailedBatches that = (LocationPushFailedBatches) o;
      if (that.failedBatches.size() != failedBatches.size()) {
        return false;
      }
  
      return failedBatches.entrySet().stream()
          .allMatch(
              item -> {
                Set<Integer> failedBatchesSet = that.failedBatches.get(item.getKey());
                if (failedBatchesSet == null) return false;
                return failedBatchesSet.equals(item.getValue());
              });
    }
  
    @Override
    public int hashCode() {
      return failedBatches.entrySet().hashCode();
    }
  
    @Override
    public String toString() {
      StringBuilder stringBuilder = new StringBuilder();
      failedBatches.forEach(
          (attemptKey, value) -> {
            stringBuilder.append("failed attemptKey:");
            stringBuilder.append(attemptKey);
            stringBuilder.append(" fail batch Ids:");
            stringBuilder.append(StringUtils.join(value, ","));
          });
      return "LocationPushFailedBatches{" + "failedBatches=" + stringBuilder + '}';
    }
  }
  