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APPENDIX B

Example: PrintGIFtoStream.java

/*
* Copyright 2001 Sun Microsystems, Inc. All Rights Reserved.
*
* This software is the proprietary information of Sun Microsystems, Inc.
* Use is subject to license terms.
*
*/

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

/*
* Use the Java(TM) 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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