How to get Application Module in JDev 10.13 with own java Methode ?

Question

Hello,
I've tried to save a table from my BC4J to file system...
for this i call my class from a jsp page:
<%
try {
// RESPONSE
String aktDbName = request.getParameter("aktDbName");
response.setContentType("text/html");
ByteArrayOutputStream buffer = Err_alertLogPageController.saveAL(pageContext);
String filename = "alert_"+aktDbName+".log";
response.setHeader("Content-Disposition","attachment; filename=\"" + filename + "\"");
// DOWNLOAD
DataOutput output = new DataOutputStream(response.getOutputStream());
byte[] bytes = buffer.toByteArray();
response.setContentLength(bytes.length);
for (int i = 0; i < bytes.length; i++) {
output.writeByte(bytes);
} catch (Exception ex) {
%>
Sorry, error...
<% } %>
My Java Methode looks like this:
public static ByteArrayOutputStream saveAL(PageContext ctx) {
ByteArrayOutputStream baos = null;
try {                         
System.out.println("Get container...");
DCBindingContainer bindings = (DCBindingContainer)ctx.getRequest().getAttribute("bindings");
BindingContext bc = bindings.getBindingContext();
System.out.println("get AM...");
DCDataControl dc = bc.findDataControl("AppModuleDataControl");
ApplicationModule am = (ApplicationModule)dc.getDataProvider();
System.out.println("get View");
ViewObject voAL = am.findViewObject("DispAlertLogView");
System.out.println("create streamer...");
baos = new ByteArrayOutputStream();
PrintStream ps = new PrintStream(baos);
System.out.println("loop...");
voAL.first();
ps.println(voAL.getCurrentRow().getAttribute("Line").toString());
while(voAL.hasNext()){
voAL.next();
ps.println(voAL.getCurrentRow().getAttribute("Line").toString());
} catch (Exception e) {
System.out.println("Error on FileSave (alert log): " + e);
return baos;
in principle it works well, but i get a null Pointer exception at:
DCBindingContainer bindings = (DCBindingContainer)ctx.getRequest().getAttribute("bindings");
I already tried to deliver PageLifecycleContext in jsp page, but then an error occur that it is not possible to deliver this variable.
I hope you know a solution to get AppModul,
or even deliver the PageLifecycleContext-Variable then i could get AppModul on my own
Thanks
Sebastian
Message was edited by:
Sebastian_ME

Answer 1

Note that there is an extension called Simple Java Bean Editor that will give you back a similar tab - get it through help->check for updates