hvanhovell commented on a change in pull request #23169: [SPARK-26103][SQL] Limit the length of debug strings for query plans URL: https://github.com/apache/spark/pull/23169#discussion_r248829491
########## File path: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/SizeLimitedWriter.scala ########## @@ -0,0 +1,48 @@ +/* + * 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.spark.sql.catalyst.util + +import java.io.Writer + +class WriterSizeException(val extraChars: Long, val charLimit: Long) extends Exception( + s"Writer reached limit of $charLimit characters. $extraChars extra characters ignored.") + +/** + * This class is used to control the size of generated writers. Guarantees that the total number + * of characters written will be less than the specified size. + * + * Checks size before writing and throws a WriterSizeException if the total size would count the + * limit. + */ +class SizeLimitedWriter(underlying: Writer, charLimit: Long) extends Writer { Review comment: +1 ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on 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 With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org
