luozenglin commented on code in PR #22040: URL: https://github.com/apache/doris/pull/22040#discussion_r1275780205
########## fe/fe-common/src/main/java/org/apache/doris/common/io/DiskUtils.java: ########## @@ -0,0 +1,122 @@ +// 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.doris.common.io; + +import java.io.BufferedReader; +import java.io.IOException; +import java.io.InputStream; +import java.io.InputStreamReader; +import java.util.ArrayList; +import java.util.List; + +public class DiskUtils { + public static class Df { + public String fileSystem = ""; + public long blocks; + public long used; + public long available; + public int useRate; + public String mountedOn = ""; + } + + public static Df df(String dir) { + String os = System.getProperty("os.name"); + if (os.startsWith("Windows")) { + Df df = new Df(); + df.available = Long.MAX_VALUE / 1024; + return df; + } + + Process process; + try { + process = Runtime.getRuntime().exec("df " + dir); + InputStream inputStream = process.getInputStream(); + BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream)); + + // Filesystem 1K-blocks Used Available Use% Mounted on + // /dev/sdc 5814186096 5814169712 0 100% /home/spy-sd/sdc + String titleLine = reader.readLine(); + String dataLine = reader.readLine(); + if (titleLine == null || dataLine == null) { + return null; + } + String[] values = dataLine.split("\\s+"); + if (values.length != 6) { + return null; + } + + Df df = new Df(); + df.fileSystem = values[0]; + df.blocks = Long.parseLong(values[1]); + df.used = Long.parseLong(values[2]); + df.available = Long.parseLong(values[3]); + df.useRate = Integer.parseInt(values[4].replace("%", "")); + df.mountedOn = values[5]; + return df; + } catch (IOException e) { + e.printStackTrace(); + return null; + } + } + + private static List<String> getTitles(String titlesLine) { + List<String> titles = new ArrayList<>(); + String[] titleArray = titlesLine.split("\\s+"); + for (String title : titleArray) { + if (title.equalsIgnoreCase("on")) { + if (!titles.isEmpty()) { + int lastIdx = titles.size() - 1; + titles.set(lastIdx, titles.get(lastIdx) + "On"); + } + } else { + titles.add(title); + } + } + return titles; + } + + private static String[] units = new String[]{"", "K", "M", "G", "T", "P"}; + + public static String sizeFormat(long size) { + int unitPos = 0; + while (size > 1024 && unitPos < units.length - 1) { + unitPos++; + size /= 1024; + } + return size + units[unitPos]; + } + + public static void main(String[] args) { + long [] values = new long[]{ + 1L, + 1L * 1024, + 1L * 1024 * 1024, + 1L * 1024 * 1024 * 1024, + 1L * 1024 * 1024 * 1024 * 1024, + 1L * 1024 * 1024 * 1024 * 1024 * 1024, + 1L * 1024 * 1024 * 1024 * 1024 * 1024 * 1024, + }; + + for (long v : values) { + System.out.println(sizeFormat(v)); Review Comment: Is this for debugging? Please add unit tests or regression tests -- 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: commits-unsubscr...@doris.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org For additional commands, e-mail: commits-h...@doris.apache.org
