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.core;
  
  import com.google.auto.value.AutoValue;
  import java.util.ArrayList;
  import java.util.List;
  import org.apache.beam.sdk.transforms.DoFn.BundleFinalizer;
  import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.collect.ImmutableList;
  import org.joda.time.Instant;
  
  /** An in-memory {@link BundleFinalizer} that keeps track of any pending finalization requests. */
  public class InMemoryBundleFinalizer implements BundleFinalizer {
    private final List<Finalization> requestedFinalizations = new ArrayList<>();
  
    @AutoValue
    public abstract static class Finalization {
      public static Finalization of(Instant expiryTime, Callback callback) {
        return new AutoValue_InMemoryBundleFinalizer_Finalization(expiryTime, callback);
      }
  
      public abstract Instant getExpiryTime();
  
      public abstract Callback getCallback();
    }
  
    @Override
    public void afterBundleCommit(Instant callbackExpiry, Callback callback) {
      requestedFinalizations.add(Finalization.of(callbackExpiry, callback));
    }
  
    /** Returns any pending finalizations clearing internal state. */
    public List<Finalization> getAndClearFinalizations() {
      List<Finalization> rval = ImmutableList.copyOf(requestedFinalizations);
      requestedFinalizations.clear();
      return rval;
    }
  }
  