deniskuzZ commented on code in PR #5498: URL: https://github.com/apache/hive/pull/5498#discussion_r1929097085
########## iceberg/patched-iceberg-core/src/main/java/org/apache/iceberg/data/PartitionStatsRecord.java: ########## @@ -0,0 +1,174 @@ +/* + * 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.data; + +import com.github.benmanes.caffeine.cache.Caffeine; +import com.github.benmanes.caffeine.cache.LoadingCache; +import java.util.List; +import java.util.Map; +import org.apache.iceberg.PartitionStats; +import org.apache.iceberg.Schema; +import org.apache.iceberg.StructLike; +import org.apache.iceberg.relocated.com.google.common.base.Objects; +import org.apache.iceberg.relocated.com.google.common.base.Preconditions; +import org.apache.iceberg.relocated.com.google.common.collect.Maps; +import org.apache.iceberg.types.Types; +import org.apache.iceberg.types.Types.StructType; + +// TODO: remove class once Iceberg PR #11216 is merged and released + +/** Wraps the {@link PartitionStats} as {@link Record}. Used by generic writers and readers. */ +public class PartitionStatsRecord implements Record, StructLike { + + private static final LoadingCache<StructType, Map<String, Integer>> NAME_MAP_CACHE = + Caffeine.newBuilder() + .weakKeys() + .build( + struct -> { + Map<String, Integer> idToPos = Maps.newHashMap(); + List<Types.NestedField> fields = struct.fields(); + for (int index = 0; index < fields.size(); index++) { + idToPos.put(fields.get(index).name(), index); + } + return idToPos; + }); + + private final StructType struct; + private final PartitionStats partitionStats; + private final Map<String, Integer> nameToPos; + + public static PartitionStatsRecord create(Schema schema, PartitionStats partitionStats) { + return new PartitionStatsRecord(schema.asStruct(), partitionStats); + } + + public static PartitionStatsRecord create(StructType struct, PartitionStats partitionStats) { + return new PartitionStatsRecord(struct, partitionStats); + } + + public PartitionStats unwrap() { + return partitionStats; + } + + private PartitionStatsRecord(StructType struct, PartitionStats partitionStats) { + this.struct = struct; + this.partitionStats = partitionStats; + this.nameToPos = NAME_MAP_CACHE.get(struct); + } + + private PartitionStatsRecord(PartitionStatsRecord toCopy) { + this.struct = toCopy.struct; + this.partitionStats = toCopy.partitionStats; + this.nameToPos = toCopy.nameToPos; + } + + private PartitionStatsRecord(PartitionStatsRecord toCopy, Map<String, Object> overwrite) { + this.struct = toCopy.struct; + this.partitionStats = toCopy.partitionStats; + this.nameToPos = toCopy.nameToPos; + for (Map.Entry<String, Object> entry : overwrite.entrySet()) { + setField(entry.getKey(), entry.getValue()); + } + } + + @Override + public StructType struct() { + return struct; + } + + @Override + public Object getField(String name) { + Integer pos = nameToPos.get(name); + Preconditions.checkArgument(pos != null, "Cannot get unknown field named: %s", name); + return partitionStats.get(pos, Object.class); + } + + @Override + public void setField(String name, Object value) { + Integer pos = nameToPos.get(name); + Preconditions.checkArgument(pos != null, "Cannot set unknown field named: %s", name); + partitionStats.set(pos, value); + } + + @Override + public int size() { + return partitionStats.size(); + } + + @Override + public Object get(int pos) { + return partitionStats.get(pos, Object.class); + } + + @Override + public <T> T get(int pos, Class<T> javaClass) { + Object value = get(pos); + if (value == null || javaClass.isInstance(value)) { + return javaClass.cast(value); + } else { + throw new IllegalStateException("Not an instance of " + javaClass.getName() + ": " + value); Review Comment: please don't review patched stuff or classes with `TODO: remove class` -- 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: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
