Java example source code file (Example.java)

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Java - Java tags/keywords

awt, bytearrayinputstream, canceled, complete, docflavor, docprintjob, event, example, failed, gui, hashprintrequestattributeset, inputstream, print, printing, printjoblistener, printservice, simpledoc, swing, testinputstream, the

The Example.java Java example source code

/*
 * Copyright (c) 2007, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/**
 * @test
 * @bug 4700712 4707777
 * @summary Should submit only 1 job in Windows and print only 1 page.
 * @author jgodinez
 * @run main/manual Example
 */
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
import javax.print.*;
import javax.print.attribute.*;
import javax.print.event.*;

public class Example
{
    public static void main(String [] args)
    {
        if(args.length != 1)
        {
            System.err.println("Usage: Example num_sections");
            return;
        }

        try{
            int stream_sections      = Integer.parseInt(args[0]);
            DocFlavor flavor         = DocFlavor.INPUT_STREAM.AUTOSENSE;
            PrintService [] services = PrintServiceLookup.lookupPrintServices
(flavor, null);

            if(services.length > 0)
            {
                PrintRequestAttributeSet attbs = new
HashPrintRequestAttributeSet();
                PrintService service = ServiceUI.printDialog(null, 100, 100,
services, null, flavor, attbs);

                if(service != null)
                {
                    InputStream stream = createInputStream(stream_sections);
                    Doc doc            = new SimpleDoc(stream, flavor, null);
                    DocPrintJob job    = service.createPrintJob();
                    job.addPrintJobListener(new PrintJobListener(){
                        public void printJobCanceled(PrintJobEvent e)
                        {
                            finish("Canceled");
                        }

                        public void printJobCompleted(PrintJobEvent e)
                        {
                            finish("Complete");
                        }

                        public void printJobFailed(PrintJobEvent e)
                        {
                            finish("Failed");
                        }

                        public void printDataTransferCompleted(PrintJobEvent
pje)
                        {
                            System.out.println("data transfered");
                        }

                        public void printJobNoMoreEvents(PrintJobEvent pje)
                        {
                            finish("Complete");
                        }
                        public void printJobRequiresAttention(PrintJobEvent pje)
{}

                    });
                    System.out.println("Printing...");
                    job.print(doc, attbs);
                }

            }else
            {
                System.out.println("no printers found");
            }

        }catch(Exception e)
        {
            e.printStackTrace();
        }
    }

    private static void finish(String message)
    {
        System.out.println("Printing " + message);
        System.out.flush();
    }

    private static InputStream createInputStream(int num_sections)
    {
        byte [] bytes = "Returns the number of bytes that can be read (or skipped over)\nfrom this input stream without blocking by the next caller of\na method for this input stream. The next caller might be the same thread or\nanother thread. ".getBytes();

        return new TestInputStream(bytes, num_sections);
    }

    private static class TestInputStream extends ByteArrayInputStream
    {
        public TestInputStream(byte [] bytes, int sections)
        {
            super(bytes);
            int avail  = super.available();
            block_size = avail / sections;
        }

        public int available()
        {
            int true_avail = super.available();
            return true_avail == 0 ? 0 : block_size;
        }

        private int block_size;
    }
}