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.windmill.state;
  
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.OutputStream;
  import org.apache.beam.sdk.coders.Coder;
  import org.apache.beam.sdk.coders.CustomCoder;
  import org.apache.beam.sdk.coders.SetCoder;
  import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.collect.Range;
  import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.collect.RangeSet;
  import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.collect.TreeRangeSet;
  
  class RangeSetCoder<T extends Comparable<?>> extends CustomCoder<RangeSet<T>> {
    private final SetCoder<Range<T>> rangesCoder;
  
    RangeSetCoder(Coder<T> boundCoder) {
      this.rangesCoder = SetCoder.of(new RangeCoder<>(boundCoder));
    }
  
    @Override
    public void encode(RangeSet<T> value, OutputStream outStream) throws IOException {
      rangesCoder.encode(value.asRanges(), outStream);
    }
  
    @Override
    public RangeSet<T> decode(InputStream inStream) throws IOException {
      return TreeRangeSet.create(rangesCoder.decode(inStream));
    }
  }
  