<%@page import="java.io.*"%>
<%
//Getting Parameters posted by the applet.
//The where parameter defines whether the data have to be saved as a file
//or have to be shown in a new browser window.
//If the applet generated an image, it was saved in a temporary file on the
//server by saveimage.jsp. In this case the filename parameter contains
//the absolulte path of that file, the type do the extension.
//If the applet generated a kind of text file, it is posted with the 
//data parameter. In this case the text file have to be saved as a file.
String fname = request.getParameter("filename");
String type = request.getParameter("type");
String location = request.getParameter("where");
String data = request.getParameter("data");


//If the location is not null, and equals to "file" the image or text data
//have to be saved on the client. In this case the contentType have to set
// "application/zip"
if(location != null) {
    if(location.equals("file")) {
	response.setContentType("application/zip");
	response.setHeader("Content-Disposition",
			   "inline; filename=marvin." + type);
    }
} else {  
    //In this case an image was generated by the applet, it has to be shown in 
    //the browser window. The contentType has to be set "image/type"  
    if(type.equals("svg")) type = "svg+xml";
    response.setContentType("image/"+type);
}

//Getting the window's outputstream
OutputStream os = response.getOutputStream();

//If data haven't been initialized - it means equals null - an image was
// generated by the applet, it was saved on the server in a temporary file. 
//Opening the temporary file for reading, writing the image into the window's
//outputstream
if(data == null) {
    int c;
    FileInputStream fis = new FileInputStream(fname);   
    while((c = fis.read()) != -1) {
        os.write(c);
    }
    fis.close();
    //Deleting the temporary file
    try {
    	File f = new File(fname);
    	f.delete();
    } catch(Exception e) { 
    }
} else {
    //In this case the data variable have been initialized, a text data was
    //generated, it has to be saved as a file.
    //Reading the text data, writing it to the window's outputstream
    PrintWriter pw = new PrintWriter(os);
    pw.println(data);
    pw.close();
}
os.close();
%>