How to decompress a gzipped data in a byte array?

Question

I have a class which has a method that is receiving an object as a parameter. This method is invoked via RMI.

public RMIClass extends Serializable {
    public RMIMethod(MyFile file){
        // do stuff
    }
}

MyFile has a property called "body", which is a byte array.

public final class MyFile implements Serializable {

    private byte[] body = new byte[0];
    //.... 

    public byte[] getBody() {
        return body;
    }
    //....
}

This property holds the gzipped data of a file that was parsed by another application.

I need to decompress this byte array before performing further actions with it.

All the examples I see of decompressing gzipped data assume that I want to write it to the disk and create a physical file, which I do not.

How do I do this?

Thanks in advance.

Answer 1

Why don't you create your own class that extends OutputStream or , whatever is the archive writing to ?

Answer 2

Look at those samples, and wherever they're using FileOutputStream, use ByteArrayOutputStream instead. Wherever they're using FileInputStream, use ByteArrayInputStream instead. The rest should be simple.

Answer 3

Wrap your byte array with a ByteArrayInputStream and feed it into a GZipInputStream