Is it possible to extract a large file using Truezip in java?

Question

import java.io.IOException;
import utils.myDate;
import utils.myLog;
import de.schlichtherle.truezip.file.TArchiveDetector;
import de.schlichtherle.truezip.file.TFile;

public class Main 
{
    /**
     * @param args
     */
    public static void main(String[] args) {
    // TODO Auto-generated method stub

    Extract(new String("C:/Documents and Settings/mitracomm/My Documents/Downloads/JAR"), new String("D:/Source/Extract Result") , "");     
}

private static void Extract(String src, String dst, String incPath)
{
    TFile srcFile = new TFile(src + "/" + incPath);
    TFile dstFile = new TFile(dst);

    try {
        TFile.cp_rp(srcFile, dstFile, TArchiveDetector.ALL);
    } catch (IOException e) {
        myLog.add(myDate.today("yyyyMMdd") + ".log", "error", e.getMessage());
    }
}

Will the above code work with a large archive? Also, how can I extract every archive in a directory without having to fill the incPath or specify archives' name? I have tried to do this but I end up with copies of all the archives from origin directory and not extracted files.

I have got this error on console" [13-12-2011 09:46:21][error] D:\Source\Extract Result (cannot set last modification time) — Ridhwan Imad, Dec 13 '11 at 03:06
You are probably running Windows and concurrently accessing the directory. Windows doesn't like that. — Christian Schlichtherle, Dec 13 '11 at 23:59

score 4 · Accepted Answer · answered Dec 14 '11 at 00:08

4

The code is principally OK, but I'ld use:

public class Main {
    public static void main(String[] args) {
        Extract(new String("C:/Documents and Settings/mitracomm/My Documents/Downloads/JAR"), new String("D:/Source/Extract Result") , "");        
    }

    private static void Extract(String src, String dst, String incPath) {
        TFile srcFile = new TFile(src, incPath);
        TFile dstFile = new TFile(dst);
        try {
            TFile.cp_rp(srcFile, dstFile, TArchiveDetector.NULL);
        } catch (IOException e) {
            // I don't like logging for this purpose, but if you must...
            myLog.add(myDate.today("yyyyMMdd") + ".log", "error", e.getMessage());
        }
    }
}

I'm not sure if you really want three arguments for the Extract method, though.

And finally, yes TrueZIP handles ZIP files beyond 4GB size correctly.

answered Dec 14 '11 at 00:08

Christian Schlichtherle

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P.S.: You can find more examples when using the Maven archetype of the project: http://truezip.java.net/kick-start/index.html – Christian Schlichtherle Dec 14 '11 at 00:32
I have tried your code above. But I still have got only just copy of archives not already extracted files. Is the TArchivedetector.NULL (or .ALL) influence the program? – Ridhwan Imad Dec 14 '11 at 04:04
You need to make sure that the respective archive driver JARs are on your class path, e.g. The JAR for TrueZIP Driver ZIP. See also here: http://truezip.java.net/faq.html – Christian Schlichtherle Dec 14 '11 at 08:42
I'm pretty sure that I already import the TrueZIP on the program. Have you another guess? – Ridhwan Imad Dec 15 '11 at 01:15
I don't mean an import statement, I mean composing your class path so that it contains the JAR of the module TrueZIP Driver ZIP. This is usually configured in your POM if you use Maven. – Christian Schlichtherle Dec 15 '11 at 12:20
In order to check your class path setup at compile time, try this: http://truezip.java.net/faq.html#filterTArchiveDetector – Christian Schlichtherle Dec 15 '11 at 12:29
Finally, please make sure to use TrueZIP 7.4.3. It fixes a bug in the ZIP64 implementation. – Christian Schlichtherle Dec 15 '11 at 12:33
I am also getting the same problem. The above code just copy and paste Example.csv.gz – Yogesh Yadav Jun 11 '15 at 22:36
But the above code works with .zip file. I am using language scala and SBT for dependency management. I thought truezip can work with .gz also but may be I too naive to make it work with .gz – Yogesh Yadav Jun 11 '15 at 22:41
@RidhwanImad To make it work with .zip please import this jar/maven/sbt http://mvnrepository.com/artifact/de.schlichtherle.truezip/truezip-swing/7.7.9 – Yogesh Yadav Jun 11 '15 at 22:43

Is it possible to extract a large file using Truezip in java?

1 Answers1