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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.
*/
<@pp.dropOutputFile />
<@pp.changeOutputFile name="org/apache/drill/exec/store/parquet/ParquetTypeHelper.java" />
<#include "/@includes/license.ftl" />
package org.apache.drill.exec.store.parquet;
import org.apache.drill.common.types.TypeProtos.DataMode;
import org.apache.drill.common.types.TypeProtos.MinorType;
import org.apache.drill.exec.planner.types.DrillRelDataTypeSystem;
import org.apache.drill.exec.record.MaterializedField;
import org.apache.parquet.schema.OriginalType;
import org.apache.parquet.schema.DecimalMetadata;
import org.apache.parquet.schema.PrimitiveType.PrimitiveTypeName;
import org.apache.parquet.schema.Type.Repetition;
import java.util.HashMap;
import java.util.Map;
/*
* This class is generated using freemarker and the ${.template_name} template.
*/
public class ParquetTypeHelper {
private static Map<MinorType,PrimitiveTypeName> typeMap;
private static Map<DataMode,Repetition> modeMap;
private static Map<MinorType,OriginalType> originalTypeMap;
static {
typeMap = new HashMap();
<#list vv.types as type>
<#list type.minor as minor>
<#if minor.class == "TinyInt" ||
minor.class == "UInt1" ||
minor.class == "UInt2" ||
minor.class == "SmallInt" ||
minor.class == "Int" ||
minor.class == "Time" ||
minor.class == "Decimal9" ||
minor.class == "Date" ||
minor.class == "UInt4">
typeMap.put(MinorType.${minor.class?upper_case}, PrimitiveTypeName.INT32);
<#elseif
minor.class == "Float4">
typeMap.put(MinorType.${minor.class?upper_case}, PrimitiveTypeName.FLOAT);
<#elseif
minor.class == "BigInt" ||
minor.class == "Decimal18" ||
minor.class == "TimeStamp" ||
minor.class == "UInt8">
typeMap.put(MinorType.${minor.class?upper_case}, PrimitiveTypeName.INT64);
<#elseif
minor.class == "Float8">
typeMap.put(MinorType.${minor.class?upper_case}, PrimitiveTypeName.DOUBLE);
<#elseif
minor.class == "Bit">
typeMap.put(MinorType.${minor.class?upper_case}, PrimitiveTypeName.BOOLEAN);
<#elseif
minor.class == "TimeTZ" ||
minor.class == "IntervalDay" ||
minor.class == "IntervalYear" ||
minor.class == "Interval" ||
minor.class == "Decimal28Dense" ||
minor.class == "Decimal38Dense" ||
minor.class == "Decimal28Sparse" ||
minor.class == "Decimal38Sparse" ||
minor.class == "VarDecimal">
typeMap.put(MinorType.${minor.class?upper_case}, PrimitiveTypeName.FIXED_LEN_BYTE_ARRAY);
<#elseif
minor.class == "VarChar" ||
minor.class == "Var16Char" ||
minor.class == "VarBinary" >
typeMap.put(MinorType.${minor.class?upper_case}, PrimitiveTypeName.BINARY);
</#if>
</#list>
</#list>
modeMap = new HashMap();
modeMap.put(DataMode.REQUIRED, Repetition.REQUIRED);
modeMap.put(DataMode.OPTIONAL, Repetition.OPTIONAL);
modeMap.put(DataMode.REPEATED, Repetition.REPEATED);
originalTypeMap = new HashMap();
<#list vv.types as type>
<#list type.minor as minor>
<#if minor.class.contains("Decimal")>
originalTypeMap.put(MinorType.${minor.class?upper_case}, OriginalType.DECIMAL);
</#if>
</#list>
</#list>
originalTypeMap.put(MinorType.VARCHAR, OriginalType.UTF8);
originalTypeMap.put(MinorType.DATE, OriginalType.DATE);
originalTypeMap.put(MinorType.TIME, OriginalType.TIME_MILLIS);
originalTypeMap.put(MinorType.TIMESTAMP, OriginalType.TIMESTAMP_MILLIS);
originalTypeMap.put(MinorType.INTERVALDAY, OriginalType.INTERVAL);
originalTypeMap.put(MinorType.INTERVALYEAR, OriginalType.INTERVAL);
originalTypeMap.put(MinorType.INTERVAL, OriginalType.INTERVAL);
// originalTypeMap.put(MinorType.TIMESTAMPTZ, OriginalType.TIMESTAMPTZ);
}
public static PrimitiveTypeName getPrimitiveTypeNameForMinorType(MinorType minorType) {
return typeMap.get(minorType);
}
public static Repetition getRepetitionForDataMode(DataMode dataMode) {
return modeMap.get(dataMode);
}
public static OriginalType getOriginalTypeForMinorType(MinorType minorType) {
return originalTypeMap.get(minorType);
}
public static DecimalMetadata getDecimalMetadataForField(MaterializedField field) {
switch(field.getType().getMinorType()) {
case DECIMAL9:
case DECIMAL18:
case DECIMAL28SPARSE:
case DECIMAL28DENSE:
case DECIMAL38SPARSE:
case DECIMAL38DENSE:
case VARDECIMAL:
return new DecimalMetadata(field.getPrecision(), field.getScale());
default:
return null;
}
}
public static int getLengthForMinorType(MinorType minorType) {
switch(minorType) {
case INTERVALDAY:
case INTERVALYEAR:
case INTERVAL:
return 12;
case DECIMAL28SPARSE:
return 12;
case DECIMAL38SPARSE:
case VARDECIMAL:
return 16;
default:
return 0;
}
}
public static int getMaxPrecisionForPrimitiveType(PrimitiveTypeName type) {
switch(type) {
case INT32:
return 9;
case INT64:
return 18;
case FIXED_LEN_BYTE_ARRAY:
return DrillRelDataTypeSystem.DRILL_REL_DATATYPE_SYSTEM.getMaxNumericPrecision();
default:
throw new UnsupportedOperationException(String.format(
"Specified PrimitiveTypeName %s cannot be used to determine max precision",
type));
}
}
}
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