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About Byron Kiourtzoglou

Byron Kiourtzoglou
Byron is a master software engineer working in the IT and Telecom domains. He is an applications developer in a wide variety of applications/services. He is currently acting as the team leader and technical architect for a proprietary service creation and integration platform for both the IT and Telecom industries in addition to a in-house big data real-time analytics solution. He is always fascinated by SOA, middleware services and mobile development. Byron is co-founder and Executive Editor at Java Code Geeks.

Handle print service attribute changes

In this example we are going to see how to handle print services attributes changes in a Java Desktop Applications. This will give you more control when handling print jobs inside your application.

To handle print service attribute changes one should take these steps:

  • Use PrintServiceLookup.lookupDefaultPrintService() to locate the default print service for this environment.
  • Create a class that implements PrintServiceAttributeListener.
  • Override attributeUpdate method to customize the handling of that specific event. Now every time a print attribute changes, this method will fire up.
  • Use PrintServiceAttributeEvent.getAttributes to get the print attibutes and the updated values.

Let’s see the code:

package com.javacodegeeks.snippets.desktop;

import javax.print.PrintService;
import javax.print.PrintServiceLookup;
import javax.print.attribute.Attribute;
import javax.print.event.PrintServiceAttributeEvent;
import javax.print.event.PrintServiceAttributeListener;

public class HandlePrintServiceAttributeChanges {

	public static void main(String[] args) throws Exception {

		// Locate the default print service for this environment.
		PrintService service = PrintServiceLookup.lookupDefaultPrintService();

		service.addPrintServiceAttributeListener(new CustomPrintServiceAttributeListener());

	}

	private static class CustomPrintServiceAttributeListener implements PrintServiceAttributeListener {

		@Override
		public void attributeUpdate(PrintServiceAttributeEvent psae) {

			Attribute[] attrs = psae.getAttributes().toArray();

			for (int i=0; i<attrs.length; i++) {
			    String attrName = attrs[i].getName();
			    String attrValue = attrs[i].toString();
			    System.out.println("Attribute updated : " + attrName + " with value: " + attrValue);
			}

		}

	}

}

 
This was an example on how to handle print service attribute changes.

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