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/*
* 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 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 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> 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"));
}
}
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