Since I can not force the processing of the tags that are generated on
the fly, I chose a hack to call the functions that the container would
call on the tag myself explicitly. By doing so, I explicitly forced
the tag-lifecycle.
I am not claiming this is a neat solution, but the best of the
workable solutions I had.
Hope the following code helps:
private static void generateMenuItem(User user, Resource resource,
PageContext ctx, Tag parent)
{
if (resource ==null)
return ;
//Playing the container for the tag: "<layout:menuItem
key='"+resource.getName()+"' link='"+resource.getName()+"'>");
Tag tag = null;
if (StringUtils.isNotEmpty(resource.getMenuDisplayName()) &&
!(resource.isDenied()))
{
tag = new MenuItemTag2();
tag.setPageContext(ctx);
tag.setParent(parent);
((MenuItemTag2)tag).setKey(resource.getMenuDisplayName());
if (StringUtils.isNotEmpty(resource.getMenuLink()))
((MenuItemTag2)tag).setLink(resource.getMenuLink());
try {
tag.doStartTag();
} catch (JspException e) {
e.printStackTrace(); //TODO: Log this error in the
appropriate logger
}
}
else
{
tag=parent; //for the children of this tag, the parent
will have to be set to the parent of this tag.
}
for(Iterator itr = resource.getSubResources().iterator(); itr.hasNext();)
{
generateMenuItem(user,(Resource) itr.next(),ctx,tag);
}
if (StringUtils.isNotEmpty(resource.getMenuDisplayName()) &&
!(resource.isDenied()))
{
//Playing the container for the tag: ("</layout:menuItem>");
try {
tag.doEndTag();
} catch (JspException e) {
e.printStackTrace();
}
tag.release();
}
}
On 1/30/06, Kai Mai <[EMAIL PROTECTED]> wrote:
> Raghu,
> can you be more specific about your solution? how about giving some coding
> examples?
>
> Thanks.
> Kai
>
> On 1/27/06, Raghu Kanchustambham <[EMAIL PROTECTED]> wrote:
> >
> > Hi,
> > I solved the problem by "playing the container".
> >
> > I called the tag functions that the container would have called in the
> > same sequence. This surely is a hack, but works for me right now.
> >
> > If you guys have a better way to solve this issue, I would be glad to hear
> > it.
> >
> > Regards,
> > Raghu
> >
> >
> > On 1/25/06, Raghu Kanchustambham <[EMAIL PROTECTED]> wrote:
> > > Hi,
> > > I am trying to generate a *dynamic* menu.
> > > I have a regular 'java' function which spits out menu tags (struts
> > > layout taglib related).
> > > The intention is to use Sitemesh to create the menu depending on the
> > > access permissions of the logged in user without any "dirty coding" in
> > > JSP's.
> > >
> > > <%=Resource.generateMenu(DataAccessManager.getResourceById(-1))%>
> > >
> > > Resource.generateMenu recursively calls itself till it generates a
> > > string of menu tags depending on access permissions. Ignore the fact
> > > that my JSP is directly calling a function in my dataacess layer! ;-)
> > > Will fix it once I get this to work:-)
> > >
> > >
> > > I am stuck with the following problem. I do not know how to force the
> > > interpretation of the string of tags generated. What is happening (as
> > > expected) is that the tags just pass to the browser as they are with
> > > OUT getting processed.
> > >
> > > A "view source" on my browser shows the following:
> > >
> > > <body>
> > > <table width="100%">
> > > <tr width="100%">
> > >
> > > <!-- The output of generateMenu function starts here -->
> > > <layout:dynMenu config='MainMenu' left='10' top='10'>
> > > <layout:menuItem key='All' link='All'>
> > > <layout:menuItem key='Reports'
> > > link='Reports'></layout:menuItem>
> > > <layout:menuItem key='Student' link='Student'>
> > > <layout:menuItem key='Enrollment'
> > > link='Enrollment'></layout:menuItem>
> > > <layout:menuItem key='Enquiry'
> > > link='Enquiry'></layout:menuItem>
> > > <layout:menuItem key='Search'
> > > link='Search'></layout:menuItem>
> > > </layout:menuItem>
> > > <layout:menuItem key='Management'
> > link='Management'>
> > > <layout:menuItem key='Location'
> > > link='Location'></layout:menuItem>
> > > <layout:menuItem key='Centre'
> > > link='Centre'></layout:menuItem>
> > > <layout:menuItem key='Course'
> > > link='Course'></layout:menuItem>
> > > </layout:menuItem>
> > > </layout:menuItem>
> > > </layout:dynMenu>
> > > etc.....
> > >
> > >
> > >
> > > Note that these tags are generated as a result of the generateMenu
> > > function and are NOT getting processed further on the server side
> > > before they
> > > are pushed on to the browser. I believe JSP does only ONE pass
> > > parsing. How do I circumvent this problem and get my tags to be
> > > processed before they leave the server?
> > >
> > > Thanks.
> > > Regards,
> > > Raghu
> > >
> >
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> >
> >
>
>
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