creating query string -> parse error

[Brian Parker <bp...@windchill.com>]

Hi,

TIA for any help figuring out how to avoid this error!

Here is what is in my template (I'm using VelocityServlet.) :

<a
href="${res.encodeURL(${req.getRequestURI()}?view=showAddSubtree&server=${ldapServer.Key})}">Help!</a>

Here is what I get in "velocity.log":

 at
org.apache.velocity.runtime.parser.Parser.generateParseException(Parser.java:3164)

 at
org.apache.velocity.runtime.parser.Parser.jj_consume_token(Parser.java:3048)

 at org.apache.velocity.runtime.parser.Parser.Method(Parser.java:982)
 at
org.apache.velocity.runtime.parser.Parser.Reference(Parser.java:1036)
 at org.apache.velocity.runtime.parser.Parser.Statement(Parser.java:287)

 at
org.apache.velocity.runtime.parser.Parser.IfStatement(Parser.java:1180)
 at org.apache.velocity.runtime.parser.Parser.Statement(Parser.java:280)

 at org.apache.velocity.runtime.parser.Parser.Directive(Parser.java:652)

 at org.apache.velocity.runtime.parser.Parser.Statement(Parser.java:304)

 at org.apache.velocity.runtime.parser.Parser.process(Parser.java:245)
 at org.apache.velocity.runtime.parser.Parser.parse(Parser.java:105)
 at org.apache.velocity.runtime.Runtime.parse(Runtime.java:619)
 at org.apache.velocity.Template.process(Template.java:164)
 at
org.apache.velocity.runtime.resource.ResourceManager.getResource(ResourceManager.java:388)

 at org.apache.velocity.runtime.Runtime.getTemplate(Runtime.java:686)
 at org.apache.velocity.runtime.Runtime.getTemplate(Runtime.java:668)
 at
org.apache.velocity.servlet.VelocityServlet.getTemplate(VelocityServlet.java:501)

 at
com.ptc.tools.ldapentrytool.ControllerServlet.handleRequest(ControllerServlet.java:153)

 at
org.apache.velocity.servlet.VelocityServlet.doRequest(VelocityServlet.java:333)

 at
org.apache.velocity.servlet.VelocityServlet.doGet(VelocityServlet.java:294)

 at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
 at
org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:404)

 at org.apache.tomcat.core.Handler.service(Handler.java:286)
 at
org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372)
 at
org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:797)

 at
org.apache.tomcat.core.ContextManager.service(ContextManager.java:743)
 at
org.apache.tomcat.service.connector.Ajp12ConnectionHandler.processConnection(Ajp12ConnectionHandler.java:166)

 at
org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:416)

 at
org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:498)

 at java.lang.Thread.run(Thread.java:484)

Wed Oct 10 09:46:46 CDT 2001  [error] ResourceManager.getResource()
parse exception: org.apache.velocity.exception.ParseErrorException:
Encountered "?view=showAddSubtree&server=" at line 28, column 64.
Was expecting one of:
    "," ...
    ")" ...
    <WHITESPACE> ...
    <DOT> ...



The reference "$ldapServer.Key" is good.  It is something like
"host.domain.com:389".

Thanks very much,

Brian

Re: creating query string -> parse error

[Christoph Reck <Ch...@dlr.de>]

Brian Parker wrote:
> 
> Hi,
> 
> TIA for any help figuring out how to avoid this error!
> 
> Here is what is in my template (I'm using VelocityServlet.) :
> 
> <a href="${res.encodeURL(${req.getRequestURI()}?view=showAddSubtree&server=${ldapServer.Key})}">Help!</a>

Do this in two steps:

#set( $url = "$req.getRequestURI()?view=showAddSubtree&server=$ldapServer.Key" )
<a href="$res.encodeURL($url)">Help!</a>

Your problem is that the VTL parser will not allow string interpolation for
a method parameter. 

You might also succeed without the two steps by adding Quotes to the 
parameter (since the outer "" are schmoo to the parser):

<a href="${res.encodeURL("${req.getRequestURI()}?view=showAddSubtree&server=${ldapServer.Key}")}">Help!</a>

This way the inner string gets interpolated with the contained calls.

:) Christoph