FreeMarker meets JSP

[Migrated From Jforum.net]

Hello Everyone:

Suppose our existing JSP Header.jsp looks like this, we want integrate the jforum's header.htm in it.

  <div id="tool-bar">
    <% 
    if (request.getUserPrincipal() instanceof UserPrincipal) {
    UserPrincipal user = (UserPrincipal)request.getUserPrincipal();
    %>
    <div id="sign-in-out">        
        Signed in as 
        <a href="Controller?action=ViewUser&userId=<%=user.getUserData().getId()%>"><%=user.getUserData().getFirstName()%>
        <%=user.getUserData().getLastName()%></a>
    </div>
    <%  
    }
    %>    
</div>

a simple <# include ...> doesnt work with FreeMarker, The problem is that the request object can be accessed in JSP, but how to get it in freemarker
do we have to put the whole Request Object in the SimpleHashMap?

And I more thing, is the simpleHashMap object a Singleton?

Many Thanks!!

[originally posted on jforum.net by shanyangqu]

[Migrated From Jforum.net]

I have created a method in my HomePageAction.java

    private void setUserDataToJforum(UserPrincipal userPrincipal) throws TemplateModelException {
        //get the user information from the Http request
        User user = userPrincipal.getUserData();
        //String userName = userPrincipal.getName();

        int userId = user.getId();
        String userFirstName = user.getFirstName();
        String userLastName = user.getLastName();
        int userOrgId = user.getOrganisation().getId();
        String userOrgName = user.getOrganisation().getName();

        try {
            // Retrieve an existing or create a new execution context
            JForumExecutionContext executionContext = JForumExecutionContext.get();
            SimpleHash jforumTeplateContext = executionContext.getTemplateContext();
            jforumTeplateContext.put("userId", userId);
            jforumTeplateContext.put("userFirstName", userFirstName);
            jforumTeplateContext.put("userLastName", userLastName);
            jforumTeplateContext.put("userOrgId", userOrgId);
            jforumTeplateContext.put("userOrgName", userOrgName);
            // Set back the new execution context, so we can use it
            JForumExecutionContext.set(executionContext);

        } finally {
            // Release the resources
            //JForumExecutionContext.finish();
        }

and in the Header.htm I try to access it by using #{XXX}

    <div id="sign-in-out">        
        
        Signed in as 
        <a href="Controller?action=ViewUser&userId=<"${userId}">"><${userFirstName}> <${userLastName}></a>
        of 
    </div>

and it FreeMarker complaints that, it cant find the veriables

Signed in as < Expression userFirstName is undefined on line 123, column 88 in default/header.htm. The problematic instruction: ---------- ==> ${userFirstName} [on line 123, column 86 in default/header.htm] in include "header.htm" [on line 1, column 1 in default/message.htm] in include "${templateName}/message.htm" [on line 7, column 9 in exception.html] ---------- Java backtrace for programmers: ---------- freemarker.core.InvalidReferenceException: Expression userFirstName is undefined on line 123, column 88 in default/header.htm. at freemarker.core.TemplateObject.assertNonNull(TemplateObject.java:124) at freemarker.core.Expression.getStringValue(Expression.java:118) at freemarker.core.Expression.getStringValue(Expression.java:93) at freemarker.core.DollarVariable.accept(DollarVariable.java:76) at freemarker.core.Environment.visit(Environment.java:196) at freemarker.core.MixedContent.accept(MixedContent.java:92) at freemarker.core.Environment.visit(Environment.java:196) at freemarker.core.Environment.include(Environment.java:1375) at freemarker.core.Include.accept(Include.java:155) at freemarker.core.Environment.visit(Environment.java:196) at freemarker.core.MixedContent.accept(MixedContent.java:92) at freemarker.core.Environment.visit(Environment.java:196) at freemarker.core.Environment.include(Environment.java:1375) at freemarker.core.Include.accept(Include.java:155) at freemarker.core.Environment.visit(Environment.java:196) at freemarker.core.IfBlock.accept(IfBlock.java:82) at freemarker.core.Environment.visit(Environment.java:196) at freemarker.core.MixedContent.accept(MixedContent.java:92) at freemarker.core.Environment.visit(Environment.java:196) at freemarker.core.Environment.process(Environment.java:176) at freemarker.template.Template.process(Template.java:232) at net.jforum.exceptions.ExceptionWriter.handleExceptionData(ExceptionWriter.java:115) at net.jforum.JForum.handleException(JForum.java:285) 

Help please

[originally posted on jforum.net by shanyangqu]