Java

Check if a MIME Part is an Image

Demonstrates the Chilkat Mime.IsImage method, which returns whether the Content-Type begins with image/. It takes no arguments and applies to the current part.

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

Background: This locates image parts — inline graphics in a multipart/related message, or image attachments — so your code can preview thumbnails, extract them, or handle them differently from documents. It matches any image/ subtype, including image/svg+xml.

Chilkat Java Downloads

Download Chilkat for Java

Chilkat2 Java

import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.Mime;

public class ChilkatExample {

    public static void main(String[] args) {
        // Demonstrates the Mime.IsImage method, which returns whether the Content-Type begins with image/.  It takes no arguments and applies to the current
        // part.  This example iterates the parts of a multipart message and reports which ones match.

        Mime mime = new Mime();
        try {
            mime.loadMimeFile("qa_data/multipart_message.eml");
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        int n = mime.getNumParts();
        Mime part = new Mime();
        for (int i = 0; i < n; i++) {
            try {
                mime.partAt(i, part);
            } catch (ChilkatException e) {
                System.out.println(e.getLastErrorText());
                return;
            }

            if (part.isImage()) {
                System.out.println("Part " + i + " (" + part.getContentType() + ") is an image.");
            }
        }
    }
}