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[feature](tvf)(jni-avro)jni-avro scanner add complex data types (apac…
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fe/be-java-extensions/avro-scanner/src/main/java/org/apache/doris/avro/AvroTypeUtils.java
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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. | ||
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| package org.apache.doris.avro; | ||
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| import org.apache.doris.common.jni.vec.TableSchema; | ||
| import org.apache.doris.common.jni.vec.TableSchema.SchemaColumn; | ||
| import org.apache.doris.thrift.TPrimitiveType; | ||
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| import com.google.common.base.Preconditions; | ||
| import org.apache.avro.Schema; | ||
| import org.apache.avro.Schema.Field; | ||
| import org.apache.commons.compress.utils.Lists; | ||
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| import java.util.ArrayList; | ||
| import java.util.Arrays; | ||
| import java.util.Collections; | ||
| import java.util.List; | ||
| import java.util.stream.Collectors; | ||
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| public class AvroTypeUtils { | ||
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| protected static TableSchema parseTableSchema(Schema schema) throws UnsupportedOperationException { | ||
| List<Field> schemaFields = schema.getFields(); | ||
| List<SchemaColumn> schemaColumns = new ArrayList<>(); | ||
| for (Field schemaField : schemaFields) { | ||
| Schema avroSchema = schemaField.schema(); | ||
| String columnName = schemaField.name(); | ||
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| SchemaColumn schemaColumn = new SchemaColumn(); | ||
| TPrimitiveType tPrimitiveType = typeFromAvro(avroSchema, schemaColumn); | ||
| schemaColumn.setName(columnName); | ||
| schemaColumn.setType(tPrimitiveType); | ||
| schemaColumns.add(schemaColumn); | ||
| } | ||
| return new TableSchema(schemaColumns); | ||
| } | ||
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| private static TPrimitiveType typeFromAvro(Schema avroSchema, SchemaColumn schemaColumn) | ||
| throws UnsupportedOperationException { | ||
| Schema.Type type = avroSchema.getType(); | ||
| switch (type) { | ||
| case ENUM: | ||
| case STRING: | ||
| return TPrimitiveType.STRING; | ||
| case INT: | ||
| return TPrimitiveType.INT; | ||
| case BOOLEAN: | ||
| return TPrimitiveType.BOOLEAN; | ||
| case LONG: | ||
| return TPrimitiveType.BIGINT; | ||
| case FLOAT: | ||
| return TPrimitiveType.FLOAT; | ||
| case FIXED: | ||
| case BYTES: | ||
| return TPrimitiveType.BINARY; | ||
| case DOUBLE: | ||
| return TPrimitiveType.DOUBLE; | ||
| case ARRAY: | ||
| SchemaColumn arrayChildColumn = new SchemaColumn(); | ||
| schemaColumn.addChildColumns(Collections.singletonList(arrayChildColumn)); | ||
| arrayChildColumn.setType(typeFromAvro(avroSchema.getElementType(), arrayChildColumn)); | ||
| return TPrimitiveType.ARRAY; | ||
| case MAP: | ||
| // The default type of AVRO MAP structure key is STRING | ||
| SchemaColumn keyChildColumn = new SchemaColumn(); | ||
| keyChildColumn.setType(TPrimitiveType.STRING); | ||
| SchemaColumn valueChildColumn = new SchemaColumn(); | ||
| valueChildColumn.setType(typeFromAvro(avroSchema.getValueType(), valueChildColumn)); | ||
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| schemaColumn.addChildColumns(Arrays.asList(keyChildColumn, valueChildColumn)); | ||
| return TPrimitiveType.MAP; | ||
| case RECORD: | ||
| List<Field> fields = avroSchema.getFields(); | ||
| List<SchemaColumn> childSchemaColumn = Lists.newArrayList(); | ||
| for (Field field : fields) { | ||
| SchemaColumn structChildColumn = new SchemaColumn(); | ||
| structChildColumn.setName(field.name()); | ||
| structChildColumn.setType(typeFromAvro(field.schema(), structChildColumn)); | ||
| childSchemaColumn.add(structChildColumn); | ||
| } | ||
| schemaColumn.addChildColumns(childSchemaColumn); | ||
| return TPrimitiveType.STRUCT; | ||
| case UNION: | ||
| List<Schema> nonNullableMembers = filterNullableUnion(avroSchema); | ||
| Preconditions.checkArgument(!nonNullableMembers.isEmpty(), | ||
| avroSchema.getName() + "Union child type not all nullAble type"); | ||
| List<SchemaColumn> childSchemaColumns = Lists.newArrayList(); | ||
| for (Schema nullableMember : nonNullableMembers) { | ||
| SchemaColumn childColumn = new SchemaColumn(); | ||
| childColumn.setName(nullableMember.getName()); | ||
| childColumn.setType(typeFromAvro(nullableMember, childColumn)); | ||
| childSchemaColumns.add(childColumn); | ||
| } | ||
| schemaColumn.addChildColumns(childSchemaColumns); | ||
| return TPrimitiveType.STRUCT; | ||
| default: | ||
| throw new UnsupportedOperationException( | ||
| "avro format: " + avroSchema.getName() + type.getName() + " is not supported."); | ||
| } | ||
| } | ||
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| private static List<Schema> filterNullableUnion(Schema schema) { | ||
| Preconditions.checkArgument(schema.isUnion(), "Schema must be union"); | ||
| return schema.getTypes().stream().filter(s -> !s.isNullable()).collect(Collectors.toList()); | ||
| } | ||
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| } |
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