chenjunjiedada commented on a change in pull request #971: URL: https://github.com/apache/iceberg/pull/971#discussion_r454370821
########## File path: core/src/main/java/org/apache/iceberg/PositionBasedDeleteRecord.java ########## @@ -0,0 +1,93 @@ +/* + * 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; + +import org.apache.avro.Schema; +import org.apache.avro.generic.IndexedRecord; +import org.apache.avro.specific.SpecificData; +import org.apache.iceberg.relocated.com.google.common.base.MoreObjects; +import org.apache.iceberg.types.Types; + +import static org.apache.iceberg.types.Types.NestedField.required; + +class PositionBasedDeleteRecord implements IndexedRecord, SpecificData.SchemaConstructable { + + private transient org.apache.avro.Schema avroSchema = null; + private String filePath = null; + private Long position = null; + + static org.apache.iceberg.Schema schema() { + return new org.apache.iceberg.Schema( + required(1, "file_path", Types.StringType.get()), + required(2, "position", Types.LongType.get())); + } + + /** + * Used by Avro reflection to instantiate this class when reading manifest files. + */ + PositionBasedDeleteRecord(org.apache.avro.Schema avroSchema) { + this.avroSchema = avroSchema; + } + + PositionBasedDeleteRecord(String path, Long pos) { + this.filePath = path; + this.position = pos; + } + + @Override + public void put(int pos, Object v) { + switch (pos) { + case 0: + // always coerce to String for Serializable + this.filePath = v.toString(); + return; + case 1: + this.position = (Long) v; + return; + default: + // ignore the object, it must be from a newer version of the format + } + } + + @Override + public Object get(int pos) { + switch (pos) { + case 0: + return filePath; + case 1: + return position; + default: + throw new UnsupportedOperationException("Unknown field ordinal: " + pos); + } + } + + @Override + public Schema getSchema() { + return avroSchema; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(this) Review comment: Do you mean to change to this? ```java StringJoiner joiner = new StringJoiner(",", "{", "}"); joiner.add(String.format("file_path=%s", filePath)); joiner.add(String.format("position=%d", position)); return this.getClass().getSimpleName() + joiner.toString(); ``` The Guava `MoreObjects` is now used in many classes. It needs a separate PR to update them as well if we want to use Java 8 idioms for all. ---------------------------------------------------------------- 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. For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
