org.apache.flink.formats.protobuf.serialize.PbCodegenSerializeFactory 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,
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* See the License for the specific language governing permissions and
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*/
package org.apache.flink.formats.protobuf.serialize;
import org.apache.flink.formats.protobuf.PbCodegenException;
import org.apache.flink.formats.protobuf.PbFormatUtils;
import org.apache.flink.table.types.logical.ArrayType;
import org.apache.flink.table.types.logical.LogicalType;
import org.apache.flink.table.types.logical.MapType;
import org.apache.flink.table.types.logical.RowType;
import com.google.protobuf.Descriptors;
public class PbCodegenSerializeFactory {
public static PbCodegenSerializer getPbCodegenSer(
Descriptors.FieldDescriptor fd, LogicalType type) throws PbCodegenException {
if (type instanceof RowType) {
return new PbCodegenRowSerializer(fd.getMessageType(), (RowType) type);
} else if (PbFormatUtils.isSimpleType(type)) {
return new PbCodegenSimpleSerializer(fd, type);
} else if (type instanceof ArrayType) {
return new PbCodegenArraySerializer(fd, ((ArrayType) type).getElementType());
} else if (type instanceof MapType) {
return new PbCodegenMapSerializer(fd, (MapType) type);
} else {
throw new PbCodegenException("Cannot support flink data type: " + type);
}
}
public static PbCodegenSerializer getPbCodegenTopRowSer(
Descriptors.Descriptor descriptor, RowType rowType) {
return new PbCodegenRowSerializer(descriptor, rowType);
}
}