Determining When a Print Job Has Finished - Java 2D Graphics

Java examples for 2D Graphics:Print

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Description

Determining When a Print Job Has Finished

Demo Code


import java.io.BufferedInputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;

import javax.print.Doc;
import javax.print.DocPrintJob;
import javax.print.PrintException;
import javax.print.PrintService;
import javax.print.SimpleDoc;
import javax.print.event.PrintJobAdapter;
import javax.print.event.PrintJobEvent;

public class Main {
  public static void main(String[] argv) {
    try {/*from   w w  w .j a  v a  2s .  c o m*/
      // Open the image file
      InputStream is = new BufferedInputStream(new FileInputStream(
          "filename.gif"));
      // Create the print job
      PrintService service = null;
      DocPrintJob job = service.createPrintJob();
      Doc doc = new SimpleDoc(is, null, null);

      // Monitor print job events
      PrintJobWatcher pjDone = new PrintJobWatcher(job);

      // Print it
      job.print(doc, null);

      // Wait for the print job to be done
      pjDone.waitForDone();

      // It is now safe to close the input stream
      is.close();
    } catch (PrintException e) {
    } catch (IOException e) {
    }
  }
}

class PrintJobWatcher {
  // true iff it is safe to close the print job's input stream
  boolean done = false;

  PrintJobWatcher(DocPrintJob job) {
    // Add a listener to the print job
    job.addPrintJobListener(new PrintJobAdapter() {
      public void printJobCanceled(PrintJobEvent pje) {
        allDone();
      }

      public void printJobCompleted(PrintJobEvent pje) {
        allDone();
      }

      public void printJobFailed(PrintJobEvent pje) {
        allDone();
      }

      public void printJobNoMoreEvents(PrintJobEvent pje) {
        allDone();
      }

      void allDone() {
        synchronized (PrintJobWatcher.this) {
          done = true;
          PrintJobWatcher.this.notify();
        }
      }
    });
  }

  public synchronized void waitForDone() {
    try {
      while (!done) {
        wait();
      }
    } catch (InterruptedException e) {
    }
  }
}

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