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This is a Databricks build of Trino's Hive plugin which includes support for HTTP based transport
for it's Hive metastore thrift interface.
The newest version!
/*
* Licensed 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 io.trino.plugin.hive;
import io.airlift.units.DataSize;
import io.airlift.units.DataSize.Unit;
import io.trino.plugin.hive.metastore.StorageFormat;
import io.trino.plugin.hive.type.Category;
import io.trino.plugin.hive.type.MapTypeInfo;
import io.trino.plugin.hive.type.PrimitiveCategory;
import io.trino.plugin.hive.type.PrimitiveTypeInfo;
import io.trino.plugin.hive.type.TypeInfo;
import io.trino.spi.TrinoException;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Optional;
import static com.google.common.base.Functions.identity;
import static com.google.common.collect.ImmutableMap.toImmutableMap;
import static io.trino.plugin.hive.util.HiveClassNames.AVRO_CONTAINER_INPUT_FORMAT_CLASS;
import static io.trino.plugin.hive.util.HiveClassNames.AVRO_CONTAINER_OUTPUT_FORMAT_CLASS;
import static io.trino.plugin.hive.util.HiveClassNames.AVRO_SERDE_CLASS;
import static io.trino.plugin.hive.util.HiveClassNames.COLUMNAR_SERDE_CLASS;
import static io.trino.plugin.hive.util.HiveClassNames.HIVE_IGNORE_KEY_OUTPUT_FORMAT_CLASS;
import static io.trino.plugin.hive.util.HiveClassNames.HIVE_SEQUENCEFILE_OUTPUT_FORMAT_CLASS;
import static io.trino.plugin.hive.util.HiveClassNames.JSON_SERDE_CLASS;
import static io.trino.plugin.hive.util.HiveClassNames.LAZY_BINARY_COLUMNAR_SERDE_CLASS;
import static io.trino.plugin.hive.util.HiveClassNames.LAZY_SIMPLE_SERDE_CLASS;
import static io.trino.plugin.hive.util.HiveClassNames.MAPRED_PARQUET_INPUT_FORMAT_CLASS;
import static io.trino.plugin.hive.util.HiveClassNames.MAPRED_PARQUET_OUTPUT_FORMAT_CLASS;
import static io.trino.plugin.hive.util.HiveClassNames.OPENCSV_SERDE_CLASS;
import static io.trino.plugin.hive.util.HiveClassNames.ORC_INPUT_FORMAT_CLASS;
import static io.trino.plugin.hive.util.HiveClassNames.ORC_OUTPUT_FORMAT_CLASS;
import static io.trino.plugin.hive.util.HiveClassNames.ORC_SERDE_CLASS;
import static io.trino.plugin.hive.util.HiveClassNames.PARQUET_HIVE_SERDE_CLASS;
import static io.trino.plugin.hive.util.HiveClassNames.RCFILE_INPUT_FORMAT_CLASS;
import static io.trino.plugin.hive.util.HiveClassNames.RCFILE_OUTPUT_FORMAT_CLASS;
import static io.trino.plugin.hive.util.HiveClassNames.REGEX_HIVE_SERDE_CLASS;
import static io.trino.plugin.hive.util.HiveClassNames.SEQUENCEFILE_INPUT_FORMAT_CLASS;
import static io.trino.plugin.hive.util.HiveClassNames.TEXT_INPUT_FORMAT_CLASS;
import static io.trino.spi.StandardErrorCode.NOT_SUPPORTED;
import static java.lang.String.format;
import static java.util.Objects.requireNonNull;
public enum HiveStorageFormat
{
ORC(
ORC_SERDE_CLASS,
ORC_INPUT_FORMAT_CLASS,
ORC_OUTPUT_FORMAT_CLASS,
DataSize.of(64, Unit.MEGABYTE)),
PARQUET(
PARQUET_HIVE_SERDE_CLASS,
MAPRED_PARQUET_INPUT_FORMAT_CLASS,
MAPRED_PARQUET_OUTPUT_FORMAT_CLASS,
DataSize.of(64, Unit.MEGABYTE)),
AVRO(
AVRO_SERDE_CLASS,
AVRO_CONTAINER_INPUT_FORMAT_CLASS,
AVRO_CONTAINER_OUTPUT_FORMAT_CLASS,
DataSize.of(64, Unit.MEGABYTE)),
RCBINARY(
LAZY_BINARY_COLUMNAR_SERDE_CLASS,
RCFILE_INPUT_FORMAT_CLASS,
RCFILE_OUTPUT_FORMAT_CLASS,
DataSize.of(8, Unit.MEGABYTE)),
RCTEXT(
COLUMNAR_SERDE_CLASS,
RCFILE_INPUT_FORMAT_CLASS,
RCFILE_OUTPUT_FORMAT_CLASS,
DataSize.of(8, Unit.MEGABYTE)),
SEQUENCEFILE(
LAZY_SIMPLE_SERDE_CLASS,
SEQUENCEFILE_INPUT_FORMAT_CLASS,
HIVE_SEQUENCEFILE_OUTPUT_FORMAT_CLASS,
DataSize.of(8, Unit.MEGABYTE)),
JSON(
JSON_SERDE_CLASS,
TEXT_INPUT_FORMAT_CLASS,
HIVE_IGNORE_KEY_OUTPUT_FORMAT_CLASS,
DataSize.of(8, Unit.MEGABYTE)),
TEXTFILE(
LAZY_SIMPLE_SERDE_CLASS,
TEXT_INPUT_FORMAT_CLASS,
HIVE_IGNORE_KEY_OUTPUT_FORMAT_CLASS,
DataSize.of(8, Unit.MEGABYTE)),
CSV(
OPENCSV_SERDE_CLASS,
TEXT_INPUT_FORMAT_CLASS,
HIVE_IGNORE_KEY_OUTPUT_FORMAT_CLASS,
DataSize.of(8, Unit.MEGABYTE)),
REGEX(
REGEX_HIVE_SERDE_CLASS,
TEXT_INPUT_FORMAT_CLASS,
HIVE_IGNORE_KEY_OUTPUT_FORMAT_CLASS,
DataSize.of(8, Unit.MEGABYTE));
private final String serde;
private final String inputFormat;
private final String outputFormat;
private final DataSize estimatedWriterMemoryUsage;
HiveStorageFormat(String serde, String inputFormat, String outputFormat, DataSize estimatedWriterMemoryUsage)
{
this.serde = requireNonNull(serde, "serde is null");
this.inputFormat = requireNonNull(inputFormat, "inputFormat is null");
this.outputFormat = requireNonNull(outputFormat, "outputFormat is null");
this.estimatedWriterMemoryUsage = requireNonNull(estimatedWriterMemoryUsage, "estimatedWriterMemoryUsage is null");
}
public String getSerde()
{
return serde;
}
public String getInputFormat()
{
return inputFormat;
}
public String getOutputFormat()
{
return outputFormat;
}
public DataSize getEstimatedWriterMemoryUsage()
{
return estimatedWriterMemoryUsage;
}
public void validateColumns(List handles)
{
if (this == AVRO) {
for (HiveColumnHandle handle : handles) {
if (!handle.isPartitionKey()) {
validateAvroType(handle.getHiveType().getTypeInfo(), handle.getName());
}
}
}
}
private static void validateAvroType(TypeInfo type, String columnName)
{
if (type.getCategory() == Category.MAP) {
TypeInfo keyType = mapTypeInfo(type).getMapKeyTypeInfo();
if ((keyType.getCategory() != Category.PRIMITIVE) ||
(primitiveTypeInfo(keyType).getPrimitiveCategory() != PrimitiveCategory.STRING)) {
throw new TrinoException(NOT_SUPPORTED, format("Column '%s' has a non-varchar map key, which is not supported by Avro", columnName));
}
}
else if (type.getCategory() == Category.PRIMITIVE) {
PrimitiveCategory primitive = primitiveTypeInfo(type).getPrimitiveCategory();
if (primitive == PrimitiveCategory.BYTE) {
throw new TrinoException(NOT_SUPPORTED, format("Column '%s' is tinyint, which is not supported by Avro. Use integer instead.", columnName));
}
if (primitive == PrimitiveCategory.SHORT) {
throw new TrinoException(NOT_SUPPORTED, format("Column '%s' is smallint, which is not supported by Avro. Use integer instead.", columnName));
}
}
}
private static final Map HIVE_STORAGE_FORMAT_FROM_STORAGE_FORMAT = Arrays.stream(HiveStorageFormat.values())
.collect(toImmutableMap(format -> new SerdeAndInputFormat(format.getSerde(), format.getInputFormat()), identity()));
private static final class SerdeAndInputFormat
{
private final String serde;
private final String inputFormat;
public SerdeAndInputFormat(String serde, String inputFormat)
{
this.serde = serde;
this.inputFormat = inputFormat;
}
@Override
public boolean equals(Object o)
{
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
SerdeAndInputFormat that = (SerdeAndInputFormat) o;
return serde.equals(that.serde) && inputFormat.equals(that.inputFormat);
}
@Override
public int hashCode()
{
return Objects.hash(serde, inputFormat);
}
}
public static Optional getHiveStorageFormat(StorageFormat storageFormat)
{
return Optional.ofNullable(HIVE_STORAGE_FORMAT_FROM_STORAGE_FORMAT.get(new SerdeAndInputFormat(storageFormat.getSerde(), storageFormat.getInputFormat())));
}
private static PrimitiveTypeInfo primitiveTypeInfo(TypeInfo typeInfo)
{
return (PrimitiveTypeInfo) typeInfo;
}
private static MapTypeInfo mapTypeInfo(TypeInfo typeInfo)
{
return (MapTypeInfo) typeInfo;
}
}