| /* |
| * 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.orc.impl; |
| |
| import org.apache.hadoop.hive.ql.exec.vector.BytesColumnVector; |
| import org.apache.hadoop.hive.ql.exec.vector.ColumnVector; |
| import org.apache.hadoop.hive.ql.exec.vector.DateColumnVector; |
| import org.apache.hadoop.hive.ql.exec.vector.Decimal64ColumnVector; |
| import org.apache.hadoop.hive.ql.exec.vector.DecimalColumnVector; |
| import org.apache.hadoop.hive.ql.exec.vector.DoubleColumnVector; |
| import org.apache.hadoop.hive.ql.exec.vector.ListColumnVector; |
| import org.apache.hadoop.hive.ql.exec.vector.LongColumnVector; |
| import org.apache.hadoop.hive.ql.exec.vector.MapColumnVector; |
| import org.apache.hadoop.hive.ql.exec.vector.StructColumnVector; |
| import org.apache.hadoop.hive.ql.exec.vector.TimestampColumnVector; |
| import org.apache.hadoop.hive.ql.exec.vector.UnionColumnVector; |
| import org.apache.orc.TypeDescription; |
| |
| import java.util.List; |
| |
| public class TypeUtils { |
| private TypeUtils() {} |
| |
| public static ColumnVector createColumn(TypeDescription schema, |
| TypeDescription.RowBatchVersion version, |
| int maxSize) { |
| switch (schema.getCategory()) { |
| case BOOLEAN: |
| case BYTE: |
| case SHORT: |
| case INT: |
| case LONG: |
| return new LongColumnVector(maxSize); |
| case DATE: |
| return new DateColumnVector(maxSize); |
| case TIMESTAMP: |
| case TIMESTAMP_INSTANT: |
| return new TimestampColumnVector(maxSize); |
| case FLOAT: |
| case DOUBLE: |
| return new DoubleColumnVector(maxSize); |
| case DECIMAL: { |
| int precision = schema.getPrecision(); |
| int scale = schema.getScale(); |
| if (version == TypeDescription.RowBatchVersion.ORIGINAL || |
| precision > TypeDescription.MAX_DECIMAL64_PRECISION) { |
| return new DecimalColumnVector(maxSize, precision, scale); |
| } else { |
| return new Decimal64ColumnVector(maxSize, precision, scale); |
| } |
| } |
| case STRING: |
| case BINARY: |
| case CHAR: |
| case VARCHAR: |
| return new BytesColumnVector(maxSize); |
| case STRUCT: { |
| List<TypeDescription> children = schema.getChildren(); |
| ColumnVector[] fieldVector = new ColumnVector[children.size()]; |
| for(int i=0; i < fieldVector.length; ++i) { |
| fieldVector[i] = createColumn(children.get(i), version, maxSize); |
| } |
| return new StructColumnVector(maxSize, |
| fieldVector); |
| } |
| case UNION: { |
| List<TypeDescription> children = schema.getChildren(); |
| ColumnVector[] fieldVector = new ColumnVector[children.size()]; |
| for(int i=0; i < fieldVector.length; ++i) { |
| fieldVector[i] = createColumn(children.get(i), version, maxSize); |
| } |
| return new UnionColumnVector(maxSize, |
| fieldVector); |
| } |
| case LIST: { |
| List<TypeDescription> children = schema.getChildren(); |
| return new ListColumnVector(maxSize, |
| createColumn(children.get(0), version, maxSize)); |
| } |
| case MAP: { |
| List<TypeDescription> children = schema.getChildren(); |
| return new MapColumnVector(maxSize, |
| createColumn(children.get(0), version, maxSize), |
| createColumn(children.get(1), version, maxSize)); |
| } |
| default: |
| throw new IllegalArgumentException("Unknown type " + schema.getCategory()); |
| } |
| } |
| |
| } |