problem while displaying multipage tiff image in applet

[dhiren sangani]

Hi,

I have an applet which displays tiff image through JSP.

For multipage tiff image first of all I split the image and store it to local drive.
Then from the JSP calling appplet for each image. My jsp code for the same is as below

if( files != null && files.length > 0)
{
   for (int x=0;x<files.length;x++)
  {
    if( (files[x].getName()).contains(sid))
   {
       path = files[x].getPath();
     %>
      <div id="img_<%=n++%>">
     <tr>
       <td>
          <applet name="MyApplet_<%=x%>" code="MyApplet.class" archive="jai_codec.jar,jai_core.jar" width="500" height="500">
             <param name="count" value="<%=x%>">
             <param name="imgPath_<%=x%>" value="<%=path%>">
             <param name="serverIP" value="<%=serverIP%>">
             <param name="port" value="<%=port%>">
             <param name="appname" value="<%=Constants.APP_NAME%>">
          </applet>
       </td>
    </tr>
     <div>
    <%
   }
 }
}

when I run the application, it shows the same image one by one instead of displaying each image in sequence.
Code for MyApplet.java is as below.

public class MyApplet extends Applet {
    
	private static final long serialVersionUID = 1L;
	private static Image img;
	MediaTracker tr;
	String path = "";
	String cntStr = "";
	int cnt = 0;

	public void init() {
		tr = new MediaTracker(this);

		cntStr = getParameter("count");
		System.out.println("cntStr :: "+cntStr);
		cnt = Integer.parseInt(cntStr);

		String imgPath = getParameter("imgPath_"+cnt);
		System.out.println("imgPath :: "+imgPath);

		String serverIP = getParameter("serverIP");
		System.out.println("serverIP :: "+serverIP);

		String port = getParameter("port");
		System.out.println("port :: "+port);

		String appname = getParameter("appname");
		System.out.println("appname :: "+appname);

		int indx = imgPath.lastIndexOf(appname);
		String relPath = imgPath.substring(indx);
		System.out.println("indx :: "+indx);
		System.out.println("relPath :: "+relPath);

		try
		{
			URL url = new URL("http://"+serverIP+":"+port+"/"+relPath);
			
			RenderedImage im = JAI.create("url", url);
			Image image = PlanarImage.wrapRenderedImage(im).getAsBufferedImage();

			img = image.getScaledInstance(500, -1,  Image.SCALE_SMOOTH);
			System.out.println("image: " + path + "\n" + image);
			tr.addImage(img,cnt);
		}
		catch(Exception e)
		{
			e.printStackTrace();
		}
	}

	public void update(Graphics g) {
		paint(g);
	}

	public boolean imageUpdate(Image img, int flags, int x, int y, int width,int height) 
	{
		System.out.print("Flag(s): ");
		if ((flags & ImageObserver.WIDTH) != 0) {
		  System.out.print("WIDTH:(" + width + ") ");
		}

		if ((flags & ImageObserver.HEIGHT) != 0) {
		  System.out.print("HEIGHT:(" + height + ") ");
		}

		if ((flags & ImageObserver.PROPERTIES) != 0) {
		  System.out.print("PROPERTIES ");
		}

		if ((flags & ImageObserver.SOMEBITS) != 0) {
		  System.out.print("SOMEBITS(" + x + "," + y + ")->(");
		  System.out.print(width + "," + height + ") ");
		  repaint();
		}

		if ((flags & ImageObserver.FRAMEBITS) != 0) {
		  System.out.print("FRAMEBITS(" + x + "," + y + ")->(");
		  System.out.print(width + "," + height + ") ");
		  repaint();
		}

		if ((flags & ImageObserver.ALLBITS) != 0) {
		  System.out.print("ALLBITS(" + x + "," + y + ")->(");
		  System.out.println(width + "," + height + ") ");
		  repaint();
		  return false;
		}

		if ((flags & ImageObserver.ABORT) != 0) {
		  System.out.println("ABORT \n");
		  return false;
		}

		if ((flags & ImageObserver.ERROR) != 0) {
		  System.out.println("ERROR ");
		  return false;
		}

		System.out.println();
		//repaint();
		return true;
	}	

	public void paint(Graphics g)
	{
		g.drawImage(img, 0, 0, this);
	}
}

can anybody tell me what is going wrong ?

thanks in advance

[Ulf Dittmer]

What do you mean by "in sequence"? You are creating N applet tags, each showing one particular image. What are you actually trying to do?

[dhiren sangani]

Yes I am creating N applet tag, but at the time of display it does not showing one particular image.
It displays the same image in all tags.
I am passing image path to each applet tag, so applet should display only that particular image denoted by image path.