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APPENDIX B

Example: PrintGIFtoStream.java

/*
*
* Use is subject to license terms.
*
*/

import java.io.*;
import javax.print.*;
import javax.print.attribute.*;
import javax.print.attribute.standard.*;

/*
* Use the Java Print Service API to locate a service which can export
* a GIF-encoded image to a stream as Postscript. This may be spooled to a
* Postscript printer, or used in a postscript viewer.
*/
public class PrintGIFtoStream {

    public static void main(String args[]) {

        /* Use the pre-defined flavor for a GIF from an InputStream */
        DocFlavor flavor = DocFlavor.INPUT_STREAM.GIF;

        /* Specify the type of the output stream */
        String psMimeType = DocFlavor.BYTE_ARRAY.POSTSCRIPT.getMimeType();

        /* Locate factory which can export a GIF image stream as Postscript */
        StreamPrintServiceFactory[] factories =
            StreamPrintServiceFactory.lookupStreamPrintServiceFactories(
                    flavor, psMimeType);
        if (factories.length == 0) {
            System.err.println("No suitable factories");
            System.exit(0);
        }

        try {
            /* Load the file */
            FileInputStream fis = new FileInputStream("java2dlogo.gif");
            /* Create a file for the exported postscript */
            String filename = "newfile.ps";
            FileOutputStream fos = new FileOutputStream(filename);

            /* Create a Stream printer for Postscript */
            StreamPrintService sps = factories[0].getPrintService(fos);

            /* Create and call a Print Job for the GIF image */
            DocPrintJob pj = sps.createPrintJob();
            PrintRequestAttributeSet aset = new HashPrintRequestAttributeSet();
            aset.add(new Copies(2));
            aset.add(MediaSizeName.ISO_A4);
            aset.add(Sides.TWO_SIDED_LONG_EDGE);
            aset.add(Finishings.STAPLE);

            Doc doc = new SimpleDoc(fis, flavor, null);

            pj.print(doc, aset);
            fos.close();

        } catch (PrintException pe) { 
            System.err.println(pe);
        } catch (IOException ie) { 
            System.err.println(ie);
        }
    }
}


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