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.spark.streaming.kafka010;
  
  import java.io.Serializable;
  import java.util.*;
  import java.util.regex.Pattern;
  
  import scala.collection.JavaConverters;
  
  import org.apache.kafka.common.TopicPartition;
  
  import org.junit.Assert;
  import org.junit.Test;
  
  public class JavaConsumerStrategySuite implements Serializable {
  
    @Test
    public void testConsumerStrategyConstructors() {
      final String topic1 = "topic1";
      final Pattern pat = Pattern.compile("top.*");
      final Collection<String> topics = Arrays.asList(topic1);
      final scala.collection.Iterable<String> sTopics =
        JavaConverters.collectionAsScalaIterableConverter(topics).asScala();
      final TopicPartition tp1 = new TopicPartition(topic1, 0);
      final TopicPartition tp2 = new TopicPartition(topic1, 1);
      final Collection<TopicPartition> parts = Arrays.asList(tp1, tp2);
      final scala.collection.Iterable<TopicPartition> sParts =
        JavaConverters.collectionAsScalaIterableConverter(parts).asScala();
      final Map<String, Object> kafkaParams = new HashMap<String, Object>();
      kafkaParams.put("bootstrap.servers", "not used");
      final scala.collection.Map<String, Object> sKafkaParams =
        JavaConverters.mapAsScalaMapConverter(kafkaParams).asScala();
      final Map<TopicPartition, Long> offsets = new HashMap<>();
      offsets.put(tp1, 23L);
      final scala.collection.Map<TopicPartition, Object> sOffsets =
        JavaConverters.mapAsScalaMapConverter(offsets).asScala().mapValues(
          new scala.runtime.AbstractFunction1<Long, Object>() {
            @Override
            public Object apply(Long x) {
              return (Object) x;
            }
          }
        );
  
      final ConsumerStrategy<String, String> sub1 =
        ConsumerStrategies.<String, String>Subscribe(sTopics, sKafkaParams, sOffsets);
      final ConsumerStrategy<String, String> sub2 =
        ConsumerStrategies.<String, String>Subscribe(sTopics, sKafkaParams);
      final ConsumerStrategy<String, String> sub3 =
        ConsumerStrategies.<String, String>Subscribe(topics, kafkaParams, offsets);
      final ConsumerStrategy<String, String> sub4 =
        ConsumerStrategies.<String, String>Subscribe(topics, kafkaParams);
  
      Assert.assertEquals(
        sub1.executorKafkaParams().get("bootstrap.servers"),
        sub3.executorKafkaParams().get("bootstrap.servers"));
  
      final ConsumerStrategy<String, String> psub1 =
        ConsumerStrategies.<String, String>SubscribePattern(pat, sKafkaParams, sOffsets);
      final ConsumerStrategy<String, String> psub2 =
        ConsumerStrategies.<String, String>SubscribePattern(pat, sKafkaParams);
      final ConsumerStrategy<String, String> psub3 =
        ConsumerStrategies.<String, String>SubscribePattern(pat, kafkaParams, offsets);
      final ConsumerStrategy<String, String> psub4 =
        ConsumerStrategies.<String, String>SubscribePattern(pat, kafkaParams);
  
      Assert.assertEquals(
        psub1.executorKafkaParams().get("bootstrap.servers"),
        psub3.executorKafkaParams().get("bootstrap.servers"));
  
      final ConsumerStrategy<String, String> asn1 =
        ConsumerStrategies.<String, String>Assign(sParts, sKafkaParams, sOffsets);
      final ConsumerStrategy<String, String> asn2 =
        ConsumerStrategies.<String, String>Assign(sParts, sKafkaParams);
      final ConsumerStrategy<String, String> asn3 =
        ConsumerStrategies.<String, String>Assign(parts, kafkaParams, offsets);
      final ConsumerStrategy<String, String> asn4 =
        ConsumerStrategies.<String, String>Assign(parts, kafkaParams);
  
      Assert.assertEquals(
        asn1.executorKafkaParams().get("bootstrap.servers"),
        asn3.executorKafkaParams().get("bootstrap.servers"));
    }
  
  }
  