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.
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  package org.apache.beam.runners.dataflow.worker.windmill.work.refresh;
  
  import com.google.auto.value.AutoValue;
  import org.apache.beam.runners.dataflow.worker.DataflowExecutionStateSampler;
  import org.apache.beam.runners.dataflow.worker.streaming.RefreshableWork;
  import org.apache.beam.runners.dataflow.worker.windmill.Windmill;
  import org.apache.beam.sdk.annotations.Internal;
  import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.collect.ImmutableList;
  import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.collect.ImmutableListMultimap;
  
  /** Heartbeat requests and the work that was used to generate the heartbeat requests. */
  @Internal
  @AutoValue
  public abstract class Heartbeats {
  
    static Heartbeats.Builder builder() {
      return new AutoValue_Heartbeats.Builder();
    }
  
    abstract ImmutableList<RefreshableWork> work();
  
    abstract ImmutableListMultimap<String, Windmill.HeartbeatRequest> heartbeatRequests();
  
    final int size() {
      return heartbeatRequests().asMap().size();
    }
  
    @AutoValue.Builder
    abstract static class Builder {
  
      abstract ImmutableList.Builder<RefreshableWork> workBuilder();
  
      abstract ImmutableListMultimap.Builder<String, Windmill.HeartbeatRequest>
          heartbeatRequestsBuilder();
  
      final Builder add(
          String computationId, RefreshableWork work, DataflowExecutionStateSampler sampler) {
        workBuilder().add(work);
        heartbeatRequestsBuilder().put(computationId, createHeartbeatRequest(work, sampler));
        return this;
      }
  
      private Windmill.HeartbeatRequest createHeartbeatRequest(
          RefreshableWork work, DataflowExecutionStateSampler sampler) {
        return Windmill.HeartbeatRequest.newBuilder()
            .setShardingKey(work.getShardedKey().shardingKey())
            .setWorkToken(work.id().workToken())
            .setCacheToken(work.id().cacheToken())
            .addAllLatencyAttribution(work.getHeartbeatLatencyAttributions(sampler))
            .build();
      }
  
      abstract Heartbeats build();
    }
  }
  