Java

Serialize MIME to BinData

Demonstrates the Chilkat Mime.GetMimeBd method, which serializes the complete MIME entity and appends its bytes to a BinData. The only argument is the BinData; existing bytes are preserved.

Note: The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

Background: This is the byte-exact serializer — the right choice when the MIME carries binary content such as an image or an 8-bit-encoded part, where routing the output through a text string could corrupt it. The result is a faithful byte stream you can write to a file, transmit, or hash. It pairs with LoadMimeBd for lossless round-tripping of binary MIME.

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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;

    //  Demonstrates the Mime.GetMimeBd method, which serializes the complete MIME entity and appends
    //  its bytes to a BinData.  The only argument is the BinData.  Use this when arbitrary binary body
    //  bytes must not pass through a text string.

    CkMime mime = new CkMime();

    success = mime.SetBodyFromFile("qa_data/photo.jpg");
    if (success == false) {
        System.out.println(mime.lastErrorText());
        return;
        }

    //  Append the serialized MIME bytes to a BinData.  Existing bytes are preserved.
    CkBinData bd = new CkBinData();
    success = mime.GetMimeBd(bd);
    if (success == false) {
        System.out.println(mime.lastErrorText());
        return;
        }

    System.out.println("Serialized " + bd.get_NumBytes() + " bytes.");
  }
}