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:

• UsePrintServiceLookup.lookupDefaultPrintService() to locate the default print service for this environment.
• Create a class that implementsPrintServiceAttributeListener.
• OverrideattributeUpdate method to customize the handling of that specific event. Now every time a print attribute changes, this method will fire up.
• UsePrintServiceAttributeEvent.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 {@Overridepublic 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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