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[FLINK-18075] Wrap the SerializationSchema in KafkaSerializationSchem…
…a in Kafka connector
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72 changes: 72 additions & 0 deletions
72
....10/src/test/java/org/apache/flink/streaming/connectors/kafka/FlinkKafkaProducerTest.java
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|---|---|---|
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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: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.flink.streaming.connectors.kafka; | ||
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| import org.apache.flink.api.common.serialization.SerializationSchema; | ||
| import org.apache.flink.api.common.typeutils.base.IntSerializer; | ||
| import org.apache.flink.runtime.jobgraph.OperatorID; | ||
| import org.apache.flink.streaming.api.operators.StreamSink; | ||
| import org.apache.flink.streaming.util.OneInputStreamOperatorTestHarness; | ||
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|
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| import org.junit.Test; | ||
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| import static org.hamcrest.CoreMatchers.equalTo; | ||
| import static org.junit.Assert.assertThat; | ||
|
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| /** | ||
| * Tests for {@link FlinkKafkaProducer010}. | ||
| */ | ||
| public class FlinkKafkaProducerTest { | ||
| @Test | ||
| public void testOpenProducer() throws Exception { | ||
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| OpenTestingSerializationSchema schema = new OpenTestingSerializationSchema(); | ||
| FlinkKafkaProducer010<Integer> kafkaProducer = new FlinkKafkaProducer010<>( | ||
| "localhost:9092", | ||
| "test-topic", | ||
| schema | ||
| ); | ||
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| OneInputStreamOperatorTestHarness<Integer, Object> testHarness = new OneInputStreamOperatorTestHarness<>( | ||
| new StreamSink<>(kafkaProducer), | ||
| 1, | ||
| 1, | ||
| 0, | ||
| IntSerializer.INSTANCE, | ||
| new OperatorID(1, 1)); | ||
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| testHarness.open(); | ||
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| assertThat(schema.openCalled, equalTo(true)); | ||
| } | ||
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| private static class OpenTestingSerializationSchema implements SerializationSchema<Integer> { | ||
| private boolean openCalled; | ||
|
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| @Override | ||
| public void open(InitializationContext context) throws Exception { | ||
| openCalled = true; | ||
| } | ||
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| @Override | ||
| public byte[] serialize(Integer element) { | ||
| return new byte[0]; | ||
| } | ||
| } | ||
| } |
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72 changes: 72 additions & 0 deletions
72
....11/src/test/java/org/apache/flink/streaming/connectors/kafka/FlinkKafkaProducerTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,72 @@ | ||
| /* | ||
| * 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: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. | ||
| */ | ||
|
|
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| package org.apache.flink.streaming.connectors.kafka; | ||
|
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| import org.apache.flink.api.common.serialization.SerializationSchema; | ||
| import org.apache.flink.api.common.typeutils.base.IntSerializer; | ||
| import org.apache.flink.runtime.jobgraph.OperatorID; | ||
| import org.apache.flink.streaming.api.operators.StreamSink; | ||
| import org.apache.flink.streaming.util.OneInputStreamOperatorTestHarness; | ||
|
|
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| import org.junit.Test; | ||
|
|
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| import static org.hamcrest.CoreMatchers.equalTo; | ||
| import static org.junit.Assert.assertThat; | ||
|
|
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| /** | ||
| * Tests for {@link FlinkKafkaProducer011}. | ||
| */ | ||
| public class FlinkKafkaProducerTest { | ||
| @Test | ||
| public void testOpenProducer() throws Exception { | ||
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| OpenTestingSerializationSchema schema = new OpenTestingSerializationSchema(); | ||
| FlinkKafkaProducer011<Integer> kafkaProducer = new FlinkKafkaProducer011<>( | ||
| "localhost:9092", | ||
| "test-topic", | ||
| schema | ||
| ); | ||
|
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| OneInputStreamOperatorTestHarness<Integer, Object> testHarness = new OneInputStreamOperatorTestHarness<>( | ||
| new StreamSink<>(kafkaProducer), | ||
| 1, | ||
| 1, | ||
| 0, | ||
| IntSerializer.INSTANCE, | ||
| new OperatorID(1, 1)); | ||
|
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| testHarness.open(); | ||
|
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| assertThat(schema.openCalled, equalTo(true)); | ||
| } | ||
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| private static class OpenTestingSerializationSchema implements SerializationSchema<Integer> { | ||
| private boolean openCalled; | ||
|
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| @Override | ||
| public void open(InitializationContext context) throws Exception { | ||
| openCalled = true; | ||
| } | ||
|
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| @Override | ||
| public byte[] serialize(Integer element) { | ||
| return new byte[0]; | ||
| } | ||
| } | ||
| } |
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95 changes: 95 additions & 0 deletions
95
...rg/apache/flink/streaming/connectors/kafka/internals/KafkaSerializationSchemaWrapper.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,95 @@ | ||
| /* | ||
| * 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: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. | ||
| */ | ||
|
|
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| package org.apache.flink.streaming.connectors.kafka.internals; | ||
|
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| import org.apache.flink.api.common.serialization.SerializationSchema; | ||
| import org.apache.flink.streaming.connectors.kafka.KafkaContextAware; | ||
| import org.apache.flink.streaming.connectors.kafka.KafkaSerializationSchema; | ||
| import org.apache.flink.streaming.connectors.kafka.partitioner.FlinkKafkaPartitioner; | ||
|
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| import org.apache.kafka.clients.producer.ProducerRecord; | ||
|
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| import javax.annotation.Nullable; | ||
|
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| /** | ||
| * An adapter from old style interfaces such as {@link org.apache.flink.api.common.serialization.SerializationSchema}, | ||
| * {@link org.apache.flink.streaming.connectors.kafka.partitioner.FlinkKafkaPartitioner} to the | ||
| * {@link KafkaSerializationSchema}. | ||
| */ | ||
| public class KafkaSerializationSchemaWrapper<T> implements KafkaSerializationSchema<T>, KafkaContextAware<T> { | ||
|
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| private final FlinkKafkaPartitioner<T> partitioner; | ||
| private final SerializationSchema<T> serializationSchema; | ||
| private final String topic; | ||
| private boolean writeTimestamp; | ||
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| private int[] partitions; | ||
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| public KafkaSerializationSchemaWrapper( | ||
| String topic, | ||
| FlinkKafkaPartitioner<T> partitioner, | ||
| boolean writeTimestamp, | ||
| SerializationSchema<T> serializationSchema) { | ||
| this.partitioner = partitioner; | ||
| this.serializationSchema = serializationSchema; | ||
| this.topic = topic; | ||
| this.writeTimestamp = writeTimestamp; | ||
| } | ||
|
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| @Override | ||
| public void open(SerializationSchema.InitializationContext context) throws Exception { | ||
| serializationSchema.open(context); | ||
| } | ||
|
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| @Override | ||
| public ProducerRecord<byte[], byte[]> serialize( | ||
| T element, | ||
| @Nullable Long timestamp) { | ||
| byte[] serialized = serializationSchema.serialize(element); | ||
| final Integer partition; | ||
| if (partitioner != null) { | ||
| partition = partitioner.partition(element, null, serialized, topic, partitions); | ||
| } else { | ||
| partition = null; | ||
| } | ||
|
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| final Long timestampToWrite; | ||
| if (writeTimestamp) { | ||
| timestampToWrite = timestamp; | ||
| } else { | ||
| timestampToWrite = null; | ||
| } | ||
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| return new ProducerRecord<>(topic, partition, timestampToWrite, null, serialized); | ||
| } | ||
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| @Override | ||
| public String getTargetTopic(T element) { | ||
| return topic; | ||
| } | ||
|
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| @Override | ||
| public void setPartitions(int[] partitions) { | ||
| this.partitions = partitions; | ||
| } | ||
|
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| public void setWriteTimestamp(boolean writeTimestamp) { | ||
| this.writeTimestamp = writeTimestamp; | ||
| } | ||
| } |
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