liyafan82 commented on a change in pull request #7326: URL: https://github.com/apache/arrow/pull/7326#discussion_r447441667
########## File path: java/vector/src/main/java/org/apache/arrow/vector/compression/CompressionUtility.java ########## @@ -0,0 +1,56 @@ +/* + * 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.arrow.vector.compression; + +import org.apache.arrow.flatbuf.BodyCompressionMethod; +import org.apache.arrow.flatbuf.CompressionType; +import org.apache.arrow.vector.ipc.message.ArrowBodyCompression; + +/** + * Utilities for data compression/decompression. + */ +public class CompressionUtility { + + private CompressionUtility() { + } + + /** + * Creates the {@link ArrowBodyCompression} object, given the {@link CompressionCodec}. + */ + public static ArrowBodyCompression createBodyCompression(CompressionCodec codec) { + if (codec == null) { + return null; + } + for (int i = 0; i < CompressionType.names.length; i++) { + if (CompressionType.names[i].equals(codec.getCodecName())) { Review comment: Thanks for the suggestion. I have revised the code to implement it through a switch statement. Please check if it looks good. It looks clearer. However, we may need to change the code whenever we support a new compression method. ---------------------------------------------------------------- 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: us...@infra.apache.org
