tgz Decompression of Java files

 Packagecom.alibaba.intl.batch.dependency;ImportJava.io.File;ImportJava.io.FileInputStream;ImportJava.io.FileOutputStream;ImportJava.io.InputStream;ImportJava.io.OutputStream;ImportOrg.apache.commons.compress.archivers.tar.TarArchiveEntry;ImportOrg.apache.commons.compress.archivers.tar.TarArchiveInputStream;ImportOrg.apache.commons.compress.compressors.gzip.GzipCompressorInputStream;Importorg.apache.commons.compress.utils.IOUtils;Importorg.apache.commons.lang3.StringUtils;/*** Unzip Tool class *@authorHollis **/ Public classPackdecompressor { Public Static intBuffer_size = 2048;  Public Static voidMain (string[] args)throwsException {untargz ("/home/hollis/downloads/a.tgz", "/home/hollis/downloads/a"); }     Public Static voidUntargz (String file,string DestDir)throwsexception{File tarfile=Newfile (file);   Untargz (Tarfile, DestDir); }     Public Static voidUntargz (File tarfile,string DestDir)throwsexception{if(Stringutils.isblank (DestDir)) {DestDir=tarfile.getparent (); } DestDir= Destdir.endswith (file.separator)? Destdir:destdir +File.separator; Untar (NewGzipcompressorinputstream (NewFileInputStream (Tarfile)), DestDir); }      Private Static voidUntar (InputStream InputStream, String DestDir)throwsException {tararchiveinputstream Tarin=NewTararchiveinputstream (InputStream, buffer_size); Tararchiveentry entry=NULL; Try {            while((Entry = Tarin.getnexttarentry ())! =NULL) {               if(Entry.isdirectory ()) {//is the directoryCreateDirectory (DestDir, Entry.getname ());//Create an empty directory}Else{//is a fileFile tmpfile =NewFile (DestDir + file.separator +entry.getname ()); CreateDirectory (Tmpfile.getparent ()+ File.separator,NULL);//Create an Output directoryOutputStream out =NULL; Try{ out=NewFileOutputStream (tmpfile); intLength = 0; byte[] B =New byte[2048];  while(length = Tarin.read (b))! =-1) {Out.write (b,0, length); }                   } finally{ioutils.closequietly (out); }               }           }       } Catch(Exception e) {e.printstacktrace (); Throwe; } finally{ioutils.closequietly (Tarin); }   }    Public Static voidcreatedirectory (String outputdir,string subdir) {File file=NewFile (OutputDir); if(! (SubDir = =NULL|| Subdir.trim (). Equals (""))) {//Sub-directory is not emptyFile =NewFile (OutputDir + file.separator +subdir); }         if(!file.exists ())         {File.mkdirs (); }     }  }

tgz Decompression of Java files