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
   *
   *     https://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.avro.perf.test.basic;
  
  import java.io.ByteArrayOutputStream;
  import java.io.IOException;
  
  import org.apache.avro.Schema;
  import org.apache.avro.generic.GenericData;
  import org.apache.avro.generic.GenericDatumReader;
  import org.apache.avro.generic.GenericDatumWriter;
  import org.apache.avro.generic.GenericRecord;
  import org.apache.avro.io.Decoder;
  import org.apache.avro.io.Encoder;
  import org.apache.avro.perf.test.BasicState;
  import org.openjdk.jmh.annotations.Benchmark;
  import org.openjdk.jmh.annotations.Level;
  import org.openjdk.jmh.annotations.OperationsPerInvocation;
  import org.openjdk.jmh.annotations.Scope;
  import org.openjdk.jmh.annotations.Setup;
  import org.openjdk.jmh.annotations.State;
  import org.openjdk.jmh.infra.Blackhole;
  
  public class UnchangedUnionTest {
  
    @Benchmark
    @OperationsPerInvocation(BasicState.BATCH_SIZE)
    public void encode(final TestStateEncode state) throws Exception {
      final Encoder e = state.encoder;
      GenericDatumWriter<Object> writer = new GenericDatumWriter<>(state.schema);
      for (int i = 0; i < state.getBatchSize(); i += 4) {
        writer.write(state.testData[i + 0], e);
        writer.write(state.testData[i + 1], e);
        writer.write(state.testData[i + 2], e);
        writer.write(state.testData[i + 3], e);
      }
    }
  
    @Benchmark
    @OperationsPerInvocation(BasicState.BATCH_SIZE)
    public void decode(final Blackhole blackHole, final TestStateDecode state) throws Exception {
      final Decoder d = state.decoder;
      final GenericDatumReader<Object> reader = new GenericDatumReader<>(state.schema);
      for (int i = 0; i < state.getBatchSize(); i++) {
        final Object o = reader.read(null, d);
        blackHole.consume(o);
      }
    }
  
    @State(Scope.Thread)
    public static class TestStateEncode extends BasicState {
      private static final String UNCHANGED_UNION = "[ \"null\", \"int\" ]";
  
      private GenericRecord[] testData;
      private Encoder encoder;
      private final Schema schema;
  
      public TestStateEncode() {
        super();
        this.schema = new Schema.Parser().parse(mkSchema(UNCHANGED_UNION));
      }
  
      /**
       * Setup each trial
       *
       * @throws IOException Could not setup test data
       */
      @Setup(Level.Trial)
      public void doSetupTrial() throws Exception {
        this.encoder = super.newEncoder(false, getNullOutputStream());
        this.testData = new GenericRecord[getBatchSize()];
  
        for (int i = 0; i < getBatchSize(); i++) {
          final GenericRecord rec = new GenericData.Record(this.schema);
  
          final int val = super.getRandom().nextInt(1000000);
          final Integer v = (val < 750000 ? Integer.valueOf(val) : null);
          rec.put("f", v);
  
          this.testData[i] = rec;
        }
      }
  
      private String mkSchema(String subschema) {
        return ("{ \"type\": \"record\", \"name\": \"R\", \"fields\": [\n" + "{ \"name\": \"f\", \"type\": " + subschema
            + "}\n" + "] }");
      }
    }
  
    @State(Scope.Thread)
    public static class TestStateDecode extends BasicState {
  
      private static final String UNCHANGED_UNION = "[ \"null\", \"int\" ]";
  
      private final Schema schema;
      private byte[] testData;
      private Decoder decoder;
  
      public TestStateDecode() {
        super();
        this.schema = new Schema.Parser().parse(mkSchema(UNCHANGED_UNION));
      }
  
      /**
       * Generate test data.
       *
       * @throws IOException Could not setup test data
       */
      @Setup(Level.Trial)
      public void doSetupTrial() throws IOException {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        Encoder encoder = super.newEncoder(true, baos);
  
        final GenericDatumWriter<Object> writer = new GenericDatumWriter<>(this.schema);
  
        for (int i = 0; i < getBatchSize(); i++) {
          final GenericRecord rec = new GenericData.Record(this.schema);
          final int val = super.getRandom().nextInt(1000000);
          final Integer v = (val < 750000 ? Integer.valueOf(val) : null);
          rec.put("f", v);
  
          writer.write(rec, encoder);
        }
  
        this.testData = baos.toByteArray();
      }
  
      private String mkSchema(String subschema) {
        return ("{ \"type\": \"record\", \"name\": \"R\", \"fields\": [\n" + "{ \"name\": \"f\", \"type\": " + subschema
            + "}\n" + "] }");
      }
  
      @Setup(Level.Invocation)
      public void doSetupInvocation() throws Exception {
        this.decoder = super.newDecoder(this.testData);
      }
    }
  }
  