jstl and Atom feeds
Hi all,
I'm probably being daft here, but I'm having a problem using jstl xpath
with a simple Atom feed.
Here's my code:
c:import var=feed url=http://darthside.blogspot.com/atom.xml/
x:parse var=doc doc=${feed} /
x:out select=$doc/feed/link/title/text()/
x:forEach select=$doc/feed/entry
hello
/x:forEach
hr/
x:out select=$doc/
The final x:out shows the whole document, so it seems to be parsing
okay, but I can't get any of the contents out using xpath.
Please put me out of my misery!
TIA
Digby
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jstl and splitting carriage returns
Hi again,
Anyone know if it's possible to do an fn:split on carriage returns (\n).
I just get invalid expression error messages with:
c:forEach items='${fn:split(feed, \n)}' var=row
c:out value=${row}/
/c:forEach
TIA
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RE: jstl and splitting carriage returns
I had the same problem last week. For whatever reason (The JSP policy on
whitespace) I couldn't set a variable to \n but I could create one
using the following hack:
c:set var=temp value=one
two/
c:set var=newline value=${fn:substring(temp,4,5)}/
(Note that on my windows computer temp=one\r\ntwo so that the 5th
character is the newline character)
Then you should be able to split the string using this new variable,
e.g.
c:forEach items='${fn:split(feed, newline)}' var=row
c:out value=${row}/
/c:forEach
Peter
-Original Message-
From: news [mailto:[EMAIL PROTECTED] On Behalf Of Digby
Sent: Thursday, May 26, 2005 5:24 AM
To: taglibs-user@jakarta.apache.org
Subject: jstl and splitting carriage returns
Hi again,
Anyone know if it's possible to do an fn:split on carriage returns (\n).
I just get invalid expression error messages with:
c:forEach items='${fn:split(feed, \n)}' var=row
c:out value=${row}/
/c:forEach
TIA
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Re: jstl and splitting carriage returns
Cool. Will give it a try. Thx.
Ohring, Peter wrote:
I had the same problem last week. For whatever reason (The JSP policy on
whitespace) I couldn't set a variable to \n but I could create one
using the following hack:
c:set var=temp value=one
two/
c:set var=newline value=${fn:substring(temp,4,5)}/
(Note that on my windows computer temp=one\r\ntwo so that the 5th
character is the newline character)
Then you should be able to split the string using this new variable,
e.g.
c:forEach items='${fn:split(feed, newline)}' var=row
c:out value=${row}/
/c:forEach
Peter
-Original Message-
From: news [mailto:[EMAIL PROTECTED] On Behalf Of Digby
Sent: Thursday, May 26, 2005 5:24 AM
To: taglibs-user@jakarta.apache.org
Subject: jstl and splitting carriage returns
Hi again,
Anyone know if it's possible to do an fn:split on carriage returns (\n).
I just get invalid expression error messages with:
c:forEach items='${fn:split(feed, \n)}' var=row
c:out value=${row}/
/c:forEach
TIA
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Re: Jstl function
make a tld with a tag like this
function
nameceil/name
function-classjava.lang.Math/function-class
function-signaturedouble ceil( double)/function-signature
/function
and in your jsp (assuming you have mapped the tld as /functions)
%@ taglib uri=/functions prefix=f %
...
${f:ceil(your_number_var)}
On 5/26/05, Dominguez Valle Carolina [EMAIL PROTECTED] wrote:
Hi, Is there a way to call the Math function ceil with the EL on a JSP??
regards.
Carolina
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--
::SammyRulez::
http://sammyprojectz.blogspot.com
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join and arrays
Hi,
I have a JSP which parses an XML document and inserts records into a DB.
For multiple XML elements, I do the following:
sql:transaction dataSource=${ds_devgeodb}
sql:update
insert into service_endpoints (keywords) values
('x:forEach
select=$doc/WMT_MS_Capabilities/Service/KeywordList/Keyword
var=kwx:out select=text()/,/x:forEach')
/sql:update
/sql:transaction
Which works okay, except that the values in the DB end up as:
keyword1,keyword2,keyword3,
..whereas I would prefer
keyword1,keyword2,keyword3
(i.e. without the trailing comma)
I checked the fn:join() function, which looks like it would do the
trick, but how does one set an array in JSTL?
Any advice would be appreciated.
Thanks
..Tom
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Re: join and arrays
Lookup the varStatus attribute of x:forEach, it will allow you to query
for boundary cases (first/last) amongst other things and you can use that
to decide when the trailing delimiter is not needed (for the last
iteration of the forEach).
-Rahul
On 5/26/05, Kralidis,Tom [Burlington] [EMAIL PROTECTED] wrote:
Hi,
I have a JSP which parses an XML document and inserts records into a DB.
For multiple XML elements, I do the following:
sql:transaction dataSource=${ds_devgeodb}
sql:update
insert into service_endpoints (keywords) values
('x:forEach
select=$doc/WMT_MS_Capabilities/Service/KeywordList/Keyword
var=kwx:out select=text()/,/x:forEach')
/sql:update
/sql:transaction
Which works okay, except that the values in the DB end up as:
keyword1,keyword2,keyword3,
..whereas I would prefer
keyword1,keyword2,keyword3
(i.e. without the trailing comma)
I checked the fn:join() function, which looks like it would do the
trick, but how does one set an array in JSTL?
Any advice would be appreciated.
Thanks
..Tom
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counter in forEach tag?
Hello,
I have this scenario come up occasionally, and have to opt to JSP expressions
on the page for a work-around.
c:choose
c:when test=${assetCollection == null}
nothing
/c:when
c:otherwise
c:forEach var=asset items=${assetCollection}
BODY
c:out value=${asset.assetId} /
/c:forEach
/c:otherwise
/c:choose
In the forEach section, I am going to create a rows in a table which will be
different colors for each row. How can I put in a counter that I can then
change the row color for? Basically, I would like to know what asset I am on in
the body.
Thanks,
Scott
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RE: counter in forEach tag?
You can use the varStatus property of the forEach tag.
c:forEach var=asset items=${assetCollection} varStatus=status
And then you can get the current count of the iteration.
${status.count}
Karl
-Original Message-
From: Scott Purcell [mailto:[EMAIL PROTECTED]
Sent: Thursday, May 26, 2005 12:58 PM
To: taglibs-user@jakarta.apache.org
Subject: counter in forEach tag?
Hello,
I have this scenario come up occasionally, and have to opt to JSP expressions
on the page for a work-around.
c:choose
c:when test=${assetCollection == null}
nothing
/c:when
c:otherwise
c:forEach var=asset items=${assetCollection}
BODY
c:out value=${asset.assetId} /
/c:forEach
/c:otherwise
/c:choose
In the forEach section, I am going to create a rows in a table which will be
different colors for each row. How can I put in a counter that I can then
change the row color for? Basically, I would like to know what asset I am on in
the body.
Thanks,
Scott
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Re: counter in forEach tag?
varStatus is good here too, it can give you the count of the current
iteration. With that, for example, you can do a modulo 2 operation for
alternating bgcolors or style classes.
-Rahul
Scott Purcell [EMAIL PROTECTED] wrote on 05/26/2005 12:58:20 PM:
Hello,
I have this scenario come up occasionally, and have to opt to JSP
expressions on the page for a work-around.
c:choose
c:when test=${assetCollection == null}
nothing
/c:when
c:otherwise
c:forEach var=asset items=${assetCollection}
BODY
c:out value=${asset.assetId} /
/c:forEach
/c:otherwise
/c:choose
In the forEach section, I am going to create a rows in a table which
will be different colors for each row. How can I put in a counter
that I can then change the row color for? Basically, I would like to
know what asset I am on in the body.
Thanks,
Scott
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