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(Java) Replacment for Deprecated Crypt2 Compress FunctionsThe Chilkat Crypt2 compression functions are deprecated and will be removed. This example shows how to duplicate the functionality using the Chilkat Compression class.
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[]) { CkCrypt2 crypt = new CkCrypt2(); // Create data to be compressed. CkStringBuilder sb = new CkStringBuilder(); int i = 0; while (i < 25) { sb.Append("Hello World, this is a test.\r\n"); i = i+1; } // Bzip2 compress the utf-8 byte representation of the string and return the compressed data as base64. crypt.put_Charset("utf-8"); crypt.put_EncodingMode("base64"); String compressedStr = crypt.compressStringENC(sb.getAsString()); System.out.println(compressedStr); // Result: 4aeUs+4CAABCWmgzMUFZJlNZZ6znBgAAfNeAABJABQBAAIAmZJwAIABwUNNMAAUqoekYjMp4ixF1FlFxF8i5i1FvFwizF9iwi9RdxaizF7RZi6i0ixF3Fui/i7kinChIM9ZzgwA= // The result contains an 8-byte header composed of a 4-byte magic number (0xB394A7E1) and a 4-byte length. // Do the following to BZip2 decompress using Chilkat Compression CkBinData bd = new CkBinData(); bd.AppendEncoded(compressedStr,"base64"); // Remove the 8-byte header. bd.RemoveChunk(0,8); // Decompress CkCompression compress = new CkCompression(); compress.put_Algorithm("bzip2"); compress.DecompressBd(bd); // Get the decompressed string. String decompressedStr = bd.getString("utf-8"); System.out.println(decompressedStr); } } |
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