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.beam.runners.dataflow.worker;
  
  import com.google.auto.value.AutoValue;
  import java.util.Objects;
  import org.apache.beam.runners.dataflow.worker.streaming.ShardedKey;
  import org.apache.beam.vendor.grpc.v1p69p0.com.google.protobuf.ByteString;
  import org.apache.beam.vendor.grpc.v1p69p0.com.google.protobuf.TextFormat;
  
  @AutoValue
  public abstract class WindmillComputationKey {
  
    public static WindmillComputationKey create(
        String computationId, ByteString key, long shardingKey) {
      return new AutoValue_WindmillComputationKey(computationId, key, shardingKey);
    }
  
    public static WindmillComputationKey create(String computationId, ShardedKey shardedKey) {
      return create(computationId, shardedKey.key(), shardedKey.shardingKey());
    }
  
    public abstract String computationId();
  
    public abstract ByteString key();
  
    public abstract long shardingKey();
  
    @Override
    public final String toString() {
      return String.format(
          "%s: %s-%d", computationId(), TextFormat.escapeBytes(key()), shardingKey());
    }
  
    @Override
    public final int hashCode() {
      // Sharding key collisions are unexpected, avoid hashing full key
      return Objects.hash(shardingKey(), computationId());
    }
  }
  