package org.webslinger.ext.image;

 import java.awt.Rectangle;

 import java.io.File;

 import java.io.IOException;

 import org.webslinger.util.GeneratedResult;

 import org.webslinger.util.TTLCachedObject;

 import org.webslinger.util.TTLObject;

 public final class ImageBoxTTLObject extends TTLCachedObject<Rectangle> {

     static {

         TTLObject.setDefaultTTLForClass(ImageBoxTTLObject.class, 1000);

     }

     private final File file;

     public ImageBoxTTLObject(File file) {

         this.file = file;

     }

     protected long getTimestamp(Rectangle old) throws IOException {

         return file.exists() ? file.lastModified() : NOT_EXISTANT_TIMESTAMP;

     }

     protected GeneratedResult<Rectangle> generate(Rectangle old) throws IOException {

         try {

             return new GeneratedResult<Rectangle>(file.lastModified(), ImageUtils.getImageBox(file));

         } catch (InterruptedException e) {

             throw (IOException) new IOException(e.getMessage()).initCause(e);

         }

     }

 }