Java

Decompress Gzip Data In-Place Using BinData

See more Gzip Examples

This example demonstrates how to use the UncompressBd method to decompress Gzip data stored in a BinData object.

The compressed .gz file is first loaded into memory. The UncompressBd method then decompresses the data in-place, meaning the original compressed bytes in the BinData object are replaced with the uncompressed data.

After decompression, the example writes the resulting data to a file. This approach is useful when working entirely in memory before saving or further processing the uncompressed data.

Chilkat2 Java

import com.chilkatsoft.chilkat2.BinData;
import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.Gzip;

public class ChilkatExample {

    public static void main(String[] args) {
        // This example demonstrates how to decompress Gzip data stored in a BinData object.
        // The decompression is done in-place, replacing the compressed data with the original data.

        Gzip gzip = new Gzip();
        BinData bd = new BinData();

        // Load a .gz file into BinData:
        try {
            bd.loadFile("example.txt.gz");
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        System.out.println("Compressed size (bytes): " + bd.getNumBytes());

        // Uncompress the data in-place:
        try {
            gzip.uncompressBd(bd);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        System.out.println("Decompressed size (bytes): " + bd.getNumBytes());

        // Save the uncompressed data to a file:
        try {
            bd.writeFile("example.txt");
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        System.out.println("File successfully uncompressed to example.txt");
    }
}