/*
* 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.kafka.test;
import org.apache.kafka.clients.consumer.Consumer;
import org.apache.kafka.clients.consumer.MockConsumer;
import org.apache.kafka.clients.consumer.OffsetResetStrategy;
import org.apache.kafka.clients.producer.MockProducer;
import org.apache.kafka.clients.producer.Producer;
import org.apache.kafka.clients.producer.ProducerConfig;
import org.apache.kafka.common.serialization.ByteArraySerializer;
import org.apache.kafka.streams.KafkaClientSupplier;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import static org.hamcrest.CoreMatchers.startsWith;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.junit.Assert.assertFalse;
public class MockClientSupplier implements KafkaClientSupplier {
private final String applicationId;
private static final ByteArraySerializer BYTE_ARRAY_SERIALIZER = new ByteArraySerializer();
public final MockConsumer<byte[], byte[]> consumer = new MockConsumer<>(OffsetResetStrategy.EARLIEST);
public final MockConsumer<byte[], byte[]> restoreConsumer = new MockConsumer<>(OffsetResetStrategy.LATEST);
public final List<MockProducer> producers = new LinkedList<>();
public MockClientSupplier() {
this(null);
}
public MockClientSupplier(final String applicationId) {
this.applicationId = applicationId;
}
@Override
public Producer<byte[], byte[]> getProducer(final Map<String, Object> config) {
if (applicationId != null) {
assertThat((String) config.get(ProducerConfig.TRANSACTIONAL_ID_CONFIG), startsWith(applicationId + "-"));
} else {
assertFalse(config.containsKey(ProducerConfig.TRANSACTIONAL_ID_CONFIG));
}
final MockProducer<byte[], byte[]> producer = new MockProducer<>(true, BYTE_ARRAY_SERIALIZER, BYTE_ARRAY_SERIALIZER);
producers.add(producer);
return producer;
}
@Override
public Consumer<byte[], byte[]> getConsumer(final Map<String, Object> config) {
return consumer;
}
@Override
public Consumer<byte[], byte[]> getRestoreConsumer(final Map<String, Object> config) {
return restoreConsumer;
}
}