Java

Compress Bytes to Base64 (or any other encoding)

See more Compression Examples

Compresses bytes to base64 or any other encoding. Also decompress to return the original. Java

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    boolean success = false;

    //  This example assumes the Chilkat API to have been previously unlocked.
    //  See Global Unlock Sample for sample code.

    //  First create some binary data to compress.
    CkBinData binData = new CkBinData();

    int i;
    for (i = 1; i <= 16; i++) {
        binData.AppendEncoded("000102030405060708090A0B0C0D0E0F","hex");
        }

    CkCompression compress = new CkCompression();
    compress.put_Algorithm("deflate");
    compress.put_EncodingMode("base64");

    CkByteData uncompressedBytes = new CkByteData();
    success = binData.GetBinary(uncompressedBytes);

    //  Compress and return the compressed bytes in base64 format.
    String compressedBase64 = compress.compressBytesENC(uncompressedBytes);
    System.out.println("compressed and base64 encoded: " + compressedBase64);

    //  Compress and return in hex format:
    compress.put_EncodingMode("hex");
    String compressedHex = compress.compressBytesENC(uncompressedBytes);
    System.out.println("compressed and hex encoded: " + compressedHex);

    //  Now decompress..
    CkBinData binData2 = new CkBinData();

    //  Decompress the base64..
    compress.put_EncodingMode("base64");
    success = compress.DecompressBytesENC(compressedBase64,uncompressedBytes);
    binData2.AppendBinary(uncompressedBytes);
    //  Show the uncompressed bytes in hex format:
    System.out.println(binData2.getEncoded("hex"));
    System.out.println("--");

    //  Decompress the hex..
    compress.put_EncodingMode("hex");
    success = compress.DecompressBytesENC(compressedHex,uncompressedBytes);
    binData2.Clear();
    binData2.AppendBinary(uncompressedBytes);
    //  Show the uncompressed bytes in hex format:
    System.out.println(binData2.getEncoded("hex"));
    System.out.println("--");
  }
}