This article shows how we can compress, update, and decompress multiple files and folders into a tar.gz file using Kotlin. Table of contents: 1. Gzip vs. Java Zip 2. Add Apache Commons Compress Dependency 3. Compressing Files and Folders into a tar.gz 3.1 file name is too long (>100 bytes) 4. Decompressing a tar.gz File […]
In this tutorial, we will use the Apache Commons Compress library for handling TAR and GZ compression or tar.gz file. Table of Contents: 1. What is tar.gz? 2. Adding Dependencies 3. Creating a tar.gz File in Java 4. Extracting a tar.gz File in Java 5. Adding Files or Directories to an Existing tar.gz File 6. […]
On Linux, gzip is unable to compress a folder, it used to compress a single file only. To compress a folder, you should use tar + gzip, which is tar -z. Note $ tar –help -z, -j, -J, –lzma Compress archive with gzip/bzip2/xz/lzma For example, tar -zcvf outputFileName folderToCompress 1. Tar + Gzip a folder […]
Recently, testing on PrimeFaces’ idleMonitor component. <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:h="http://java.sun.com/jsf/html" xmlns:f="http://java.sun.com/jsf/core" xmlns:ui="http://java.sun.com/jsf/facelets" xmlns:p="http://primefaces.org/ui"> <h:head> </h:head> <h:body> <h1>PrimeFaces and idleMonitor</h1> <p:growl id="messages" showDetail="true" sticky="true" /> <p:idleMonitor timeout="10000" update="messages"> <p:ajax event="idle" listener="#{idleBean.idleListener}" update="messages" /> </p:idleMonitor> </h:body> </html> Problem After 10 seconds, console prompts java.io.IOException: Not in GZIP format? That’s weird, what GZIP to do iwith idleMonitor […]
In last section, you learn about how to compress a serialized object into a file, now you learn how to decompress it from a Gzip file. FileInputStream fin = new FileInputStream("c:\\address.gz"); GZIPInputStream gis = new GZIPInputStream(fin); ObjectInputStream ois = new ObjectInputStream(gis); address = (Address) ois.readObject(); GZIP example In this example, you will decompress a compressed […]
In last section, you learn about how to write or serialized an object into a file. In this example , you can do more than just serialized it , you also can compress the serialized object to reduce the file size. The idea is very simple, just using the “GZIPOutputStream” for the data compression. FileOutputStream […]
A few examples to show the use of tar command to create a .tar.gz file on Linux. Table of contents 1. Create, list and extract a .tar.gz file 2. What is tarball or .tar.gz? 3. Create a .tar.gz file 3.1 Tar and compress a file 3.2 Tar and compress multiple files 3.3 Tar and compress […]
