zratkai commented on code in PR #12461: URL: https://github.com/apache/iceberg/pull/12461#discussion_r2009916892
########## hive-metastore/src/main/java/org/apache/iceberg/hive/HMSTablePropertyHelper.java: ########## @@ -0,0 +1,227 @@ +/* + * 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.iceberg.hive; + +import static org.apache.iceberg.TableProperties.GC_ENABLED; + +import com.fasterxml.jackson.core.JsonProcessingException; +import java.util.Locale; +import java.util.Map; +import java.util.Optional; +import java.util.Set; +import org.apache.hadoop.hive.common.StatsSetupConst; +import org.apache.hadoop.hive.metastore.api.Table; +import org.apache.hadoop.hive.metastore.api.hive_metastoreConstants; +import org.apache.iceberg.BaseMetastoreTableOperations; +import org.apache.iceberg.PartitionSpecParser; +import org.apache.iceberg.Schema; +import org.apache.iceberg.SchemaParser; +import org.apache.iceberg.Snapshot; +import org.apache.iceberg.SnapshotSummary; +import org.apache.iceberg.SortOrderParser; +import org.apache.iceberg.TableMetadata; +import org.apache.iceberg.TableProperties; +import org.apache.iceberg.relocated.com.google.common.annotations.VisibleForTesting; +import org.apache.iceberg.relocated.com.google.common.collect.BiMap; +import org.apache.iceberg.relocated.com.google.common.collect.ImmutableBiMap; +import org.apache.iceberg.relocated.com.google.common.collect.ImmutableMap; +import org.apache.iceberg.relocated.com.google.common.collect.Maps; +import org.apache.iceberg.util.JsonUtil; +import org.apache.parquet.hadoop.ParquetOutputFormat; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +public class HMSTablePropertyHelper { + private static final Logger LOG = LoggerFactory.getLogger(HMSTablePropertyHelper.class); + + public static final String TABLE_TYPE_PROP = "table_type"; + public static final String ICEBERG_TABLE_TYPE_VALUE = "iceberg"; + + private static final BiMap<String, String> ICEBERG_TO_HMS_TRANSLATION = + ImmutableBiMap.of( + // gc.enabled in Iceberg and external.table.purge in Hive are meant to do the same things + // but with different names + GC_ENABLED, + "external.table.purge", + TableProperties.PARQUET_COMPRESSION, + ParquetOutputFormat.COMPRESSION, + TableProperties.PARQUET_ROW_GROUP_SIZE_BYTES, + ParquetOutputFormat.BLOCK_SIZE); + + private HMSTablePropertyHelper() {} + + public static void setHmsTableParameters( Review Comment: Yes, this was the main purpose of this PR to have a converter from Iceberg to Hive table parameters, which can be reused. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@iceberg.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@iceberg.apache.org For additional commands, e-mail: issues-h...@iceberg.apache.org
