Print a file and check status using Java - Full Java Code

/**
 *  $Id: PrintAndwait.java 102 2010-03-14 00:15:27Z oneyour $
 * 
 * This is an accompanying program for the article
 * <a href="http://www.1your.com/drupal/fullcodeprintandcheckstatus
" title="http://www.1your.com/drupal/fullcodeprintandcheckstatus
">http://www.1your.com/drupal/fullcodeprintandcheckstatus
</a> * 
 * Copyright (c) 2009 - 2010 <a href="http://www.1your.com" title="www.1your.com">www.1your.com</a>.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   - Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *
 *   - Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *
 *   - Neither the name of <a href="http://www.1your.com" title="www.1your.com">www.1your.com</a> nor the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * 
 */
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Scanner;
 
import javax.print.Doc;
import javax.print.DocFlavor;
import javax.print.DocPrintJob;
import javax.print.PrintException;
import javax.print.PrintService;
import javax.print.PrintServiceLookup;
import javax.print.SimpleDoc;
import javax.print.attribute.HashPrintRequestAttributeSet;
import javax.print.attribute.PrintRequestAttributeSet;
import javax.print.attribute.standard.Copies;
import javax.print.event.PrintJobEvent;
import javax.print.event.PrintJobListener;
 
/**
 *
 */
public class PrintAndwait implements PrintJobListener
{
    private String printJobStatus = null;
 
    /**
     *
     */
    public PrintAndwait()
    {
    }
 
    /**
     * Request and read input from the command line (System.in)
     * 
     * @param inputMessage
     *      The message to be displayed as a request to the user
     *      
     * @return
     *      The input from the command line
     *      
     * @throws IOException
     *      Any problems while reading the input
     */
    public static String readCommandLineInput(String inputMessage)
    {
        System.out.println(inputMessage);
        Scanner scanner = new Scanner(System.in);
 
        String inputLine = scanner.nextLine();
        return inputLine;
    }
 
    public static void main(String[] args)
    {
		// Request and read user input
		String sInstruction = "Enter path of the File to print: \n";
		String filePath = readCommandLineInput(sInstruction);
 
		//Create a new File instance by converting the given pathname string into an abstract pathname.
		File oFile = new File(filePath);
		// Check if the file exists
		boolean bFileExists = oFile.exists();
		if(!bFileExists)
		{
			// Inform the user that the file does not exist
			System.out.println("File does not exist \n");
		}
		else
		{
	        PrintAndwait printAndWait = new PrintAndwait();
	        String status = printAndWait.printAndWait(filePath);
	        System.out.println(status);
		}
    }
 
    public String printAndWait(String filePath)
    {
        // Input the file
        FileInputStream textStream = null;
        try
        {
            textStream = new FileInputStream(filePath);
        }
        catch (FileNotFoundException exception)
        {
            exception.printStackTrace();
            return ("Could not find the file -" + exception.getMessage());
        }
 
        // Set the document type
        DocFlavor myFormat = DocFlavor.INPUT_STREAM.AUTOSENSE;
 
        // Create a Doc
        Doc myDoc = new SimpleDoc(textStream, myFormat, null);
 
        // Build a set of attributes
        PrintRequestAttributeSet aset = new HashPrintRequestAttributeSet();
        aset.add(new Copies(1));
 
        // discover the printers that can print the format according to the
        // instructions in the attribute set
        PrintService service = PrintServiceLookup.lookupDefaultPrintService();
 
        // Create a print job from one of the print services
        if (service != null)
        {
            DocPrintJob job = service.createPrintJob();
            job.addPrintJobListener(this);
            try
            {
                job.print(myDoc, aset);
 
                // Wait till we know the status of our print job
                while(printJobStatus == null)
                {
                    // Wait for 1 second before checking to see if the job is complete.
                    try
                    {
                        Thread.sleep(1000);
                    }
                    catch (InterruptedException ignore)
                    {
                        ignore.printStackTrace();
                    }
                }
 
            }
            catch (PrintException exception)
            {
                exception.printStackTrace();
                return ("Problems printing the file. -" + exception.getMessage());
            }
        }
 
        return printJobStatus;
    }
 
    @Override
    public void printJobCompleted(PrintJobEvent pje)
    {
        printJobStatus = "Printing successful";
    }
 
    public void printJobNoMoreEvents(PrintJobEvent pje)  
    {
        printJobStatus = "Printing may be successful but no errors reported.";
    }
 
    @Override
    public void printDataTransferCompleted(PrintJobEvent pje)
    {
    }
 
    @Override
    public void printJobCanceled(PrintJobEvent pje)
    {
        printJobStatus = "Print job cancelled.";
    }
 
    @Override
    public void printJobFailed(PrintJobEvent pje)
    {
        printJobStatus = "Print job failed.";
    }
 
    @Override
    public void printJobRequiresAttention(PrintJobEvent pje)
    {
        printJobStatus = "Print job requires attention.";
    }
 
}