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[FLINK-1753] Extend KafkaITCase with large messages test + rework Per…
…sistentKafkaSource. This closes apache#603
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71 changes: 71 additions & 0 deletions
71
...streaming-connectors/src/main/java/org/apache/flink/streaming/connectors/kafka/Utils.java
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|---|---|---|
| @@ -0,0 +1,71 @@ | ||
| /* | ||
| * 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.flink.streaming.connectors.kafka; | ||
|
|
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| import org.apache.flink.api.common.ExecutionConfig; | ||
| import org.apache.flink.api.common.typeinfo.TypeInformation; | ||
| import org.apache.flink.api.common.typeutils.TypeSerializer; | ||
| import org.apache.flink.api.java.typeutils.ResultTypeQueryable; | ||
| import org.apache.flink.api.java.typeutils.TypeExtractor; | ||
| import org.apache.flink.api.java.typeutils.runtime.ByteArrayInputView; | ||
| import org.apache.flink.runtime.util.DataOutputSerializer; | ||
| import org.apache.flink.streaming.util.serialization.DeserializationSchema; | ||
| import org.apache.flink.streaming.util.serialization.SerializationSchema; | ||
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|
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| import java.io.IOException; | ||
|
|
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| public class Utils { | ||
| public static class TypeInformationSerializationSchema<T> | ||
| implements DeserializationSchema<T>, SerializationSchema<T, byte[]>, ResultTypeQueryable<T> { | ||
| private final TypeSerializer<T> serializer; | ||
| private final TypeInformation<T> ti; | ||
|
|
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| public TypeInformationSerializationSchema(Object type, ExecutionConfig ec) { | ||
| this.ti = (TypeInformation<T>) TypeExtractor.getForObject(type); | ||
| this.serializer = ti.createSerializer(ec); | ||
| } | ||
| @Override | ||
| public T deserialize(byte[] message) { | ||
| try { | ||
| return serializer.deserialize(new ByteArrayInputView(message)); | ||
| } catch (IOException e) { | ||
| throw new RuntimeException("Unable to deserialize message", e); | ||
| } | ||
| } | ||
|
|
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| @Override | ||
| public boolean isEndOfStream(T nextElement) { | ||
| return false; | ||
| } | ||
|
|
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| @Override | ||
| public byte[] serialize(T element) { | ||
| DataOutputSerializer dos = new DataOutputSerializer(16); | ||
| try { | ||
| serializer.serialize(element, dos); | ||
| } catch (IOException e) { | ||
| throw new RuntimeException("Unable to serialize record", e); | ||
| } | ||
| return dos.getByteArray(); | ||
| } | ||
|
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| @Override | ||
| public TypeInformation<T> getProducedType() { | ||
| return ti; | ||
| } | ||
| } | ||
| } |
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