org.apache.flink.api.java.io.TypeSerializerOutputFormat Maven / Gradle / Ivy
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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.flink.api.java.io;
import org.apache.flink.annotation.PublicEvolving;
import org.apache.flink.api.common.ExecutionConfig;
import org.apache.flink.api.common.io.BinaryOutputFormat;
import org.apache.flink.api.common.typeinfo.TypeInformation;
import org.apache.flink.api.common.typeutils.TypeSerializer;
import org.apache.flink.api.java.typeutils.InputTypeConfigurable;
import org.apache.flink.core.memory.DataOutputView;
import java.io.IOException;
/**
* Stores elements by serializing them with their type serializer.
* @param type parameter
*/
@PublicEvolving
public class TypeSerializerOutputFormat extends BinaryOutputFormat implements InputTypeConfigurable {
private static final long serialVersionUID = -6653022644629315158L;
private TypeSerializer serializer;
@Override
protected void serialize(T record, DataOutputView dataOutput) throws IOException {
if (serializer == null){
throw new RuntimeException("TypeSerializerOutputFormat requires a type serializer to " +
"be defined.");
}
serializer.serialize(record, dataOutput);
}
public void setSerializer(TypeSerializer serializer){
this.serializer = serializer;
}
@Override
@SuppressWarnings("unchecked")
public void setInputType(TypeInformation type, ExecutionConfig executionConfig) {
serializer = (TypeSerializer) type.createSerializer(executionConfig);
}
}