[opencms-dev] cms:parse tag usage
Olli Aro
olli_aro at yahoo.co.uk
Wed Sep 10 15:47:24 CEST 2008
Thanks for this Michael. Also, can you tell me, if I write my own parser is
extending org.opencms.util.CmsHtmlParser the best approach or something
else?
Regards,
Olli
P.S. when I get this working I will document it to OpenCms Wiki, I promise
:)
-----Original Message-----
From: opencms-dev-bounces at opencms.org
[mailto:opencms-dev-bounces at opencms.org] On Behalf Of Michael Emmerich
Sent: 10 September 2008 14:37
To: The OpenCms mailing list
Subject: Re: [opencms-dev] cms:parse tag usage
If you use the <cms:parse> or <cms:decorate> tag and have a
<cms:include> inside, this include must use the cacheable="false"
attribute for the include tag.
Kind regards,
Michael Emmerich
Claus Priisholm schrieb:
> Hi
>
> Nope - I looked at the decorate tag at one point, but it did not do what
> I wanted. But I was having problems catching the output from the include
> tag similar to what you describe, until someone hinted me that I should
> disable the cache. And it did the trick - a simple way of testing if you
> get what you expect:
>
> <c:set var="stuff"><cms:include ... /></c:set>
>
> and then check
>
> pageContext.getAttribute("stuff")
>
> But before I got so far I implemented a tomcat filter to do the job
> instead. There I am using org.htmlparser.Parser to do the work for me:
>
> Parser parser = Parser.createParser(source, encoding);
> NodeList nl = parser.parse(null);
>
> Html root = null;
> for(int i = 0; i< nl.size(); i++) {
> if(nl.elementAt(i) instanceof Html) {
> root = (Html)nl.elementAt(i);
> break;
> }
> }
>
> NodeList list = root.searchFor(LinkTag.class, true);
>
> ...and so forth.
>
> Other options could be JTidy or NekoHTML to do the parsing. Seem to
> recall that HTMLParser wants your document to start with <html> and not
> be a partial document.
>
> Olli Aro wrote:
>> Hi Claus,
>>
>> Have you ever used cms:parse tag? Do you know how it should work and how
to
>> write a custom parser?
>>
>> I created my own test parser as direct copy of
>> org.opencms.util.CmsHtmlParser and still don't get any content through,
so
>> maybe I am doing something wrong.
>>
>> Regards,
>>
>> Olli
>>
>> -----Original Message-----
>> From: Claus Priisholm [mailto:claus.priisholm at gmail.com] On Behalf Of
Claus
>> Priisholm
>> Sent: 09 September 2008 14:38
>> To: olli_aro at yahoo.co.uk; The OpenCms mailing list
>> Subject: Re: [opencms-dev] need some help on customizing the <cms:link>
tag
>>
>> What I ran into once I was trying to capture output from the include-tag
>> was that if it is cached, the only output your tag get to see is
>> something that looks like 32 bit ident... So to catch the output of
>> those tags that supports the flex cache you must set "cacheable" to
>> false (on the include tag).
>>
>> Olli Aro wrote:
>>> Ok, added some debugging info to my parser class and it looks that that
>> one
>>> is getting called ok with the following tag:
>>>
>>> <cms:parse parserClass="myClassName" param="config">
>>> <cms:include element="body" editable="true" />
>>> </cms:parse>
>>>
>>> So, it must be that I have something wrong with my parser
implementation.
>>> Maybe I will create a copy of org.opencms.util.CmsHtmlParser and take it
>>> from there... But still if anyone do have custom parser class for me to
>> show
>>> that would be very useful :)
>>>
>>> Regards,
>>>
>>> Olli
>>>
>>> -----Original Message-----
>>> From: opencms-dev-bounces at opencms.org
>>> [mailto:opencms-dev-bounces at opencms.org] On Behalf Of Olli Aro
>>> Sent: 09 September 2008 12:41
>>> To: 'The OpenCms mailing list'
>>> Subject: Re: [opencms-dev] need some help on customizing the <cms:link>
>> tag
>>> Hi Michael,
>>>
>>> Do you have example usage for <cms:parse> tag? How to use it in template
>> and
>>> what is the best way to implement your own parser? Also, if you would
have
>> a
>>> sample custom parser class that would be very useful.
>>>
>>> I tried to use it with extending org.opencms.util.CmsHtmlParser,
returning
>>> this as my own implementation of
>>> org.opencms.jsp.parse.A_CmsConfiguredHtmlParser and then doing:
>>>
>>> <cms:parse parserClass="myClassName" param="config">
>>> <cms:include element="body" editable="true" />
>>> </cms:parse>
>>>
>>> but that did not render anything for the content.
>>>
>>> Regards,
>>>
>>> Olli
>>>
>>> -----Original Message-----
>>> From: opencms-dev-bounces at opencms.org
>>> [mailto:opencms-dev-bounces at opencms.org] On Behalf Of Michael Emmerich
>>> Sent: 04 September 2008 16:26
>>> To: The OpenCms mailing list
>>> Subject: Re: [opencms-dev] need some help on customizing the <cms:link>
>> tag
>>> Kunkun,
>>>
>>>> Hi Kunkun,
>>>>
>>>> for the first part of your question you can possibly use the
>>>> <cms:decorate>-Tag. For further details have a look at the
>>>> OpenCms-Documentation Modules.
>>> the <cms:decorate> tag only modified text nodes, this would not help.
>>>
>>> Use the <cms:parse> tag and write your own parser that is triggered by
>>> link tags. Modifiy the link tags with the id, e.g. the hash code of the
>>> target and write this into a database.
>>> Sonthing that holds the id, the target and the number of hits.
>>> In addition add some code to your link that starts a ajax request when
>>> the link is klicked. The target of this ajax reqeust must receive the id
>>> and increase the number of hits for this id.
>>>
>>> HTH,
>>> Michael
>>>
>>>
>>>>
------------------------------------------------------------------------
>>>> *Von:* opencms-dev-bounces at opencms.org
>>>> [mailto:opencms-dev-bounces at opencms.org] *Im Auftrag von *kk
>>>> *Gesendet:* Donnerstag, 4. September 2008 16:58
>>>> *An:* opencms-dev at opencms.org
>>>> *Betreff:* [opencms-dev] need some help on customizing the <cms:link>
tag
>>>>
>>>> Dear together,
>>>>
>>>> my name is kunkun. I am a computerscience-student in Germany. I am
>>>> working on a project, which extends opencms with some new features.
>>>>
>>>> The problem is:
>>>>
>>>> 1. I have to mark the links, that i create on a site, with something
>>>> like an ID.
>>>> 2. Then i have to log the Link ID, whenever the link is clicked on the
>>>> site, when it is made online.
>>>>
>>>> Can u give me some Ideas, how to do that?
>>>>
>>>> My idea is to create a class, which inherits the internal link class of
>>>> OpenCms, and change the html-code that is generated during constuction
>>>> of the link.
>>>>
>>>> But with which class should I start. There is a class named
>>>> CmsJspTagLink, which can be used with <cms:link>.
>>>> The class CmsLinkManager is also used to substitute the name for links
>>>> inside the VFS System. But how do i do
>>>> it in general purpose not only for internal links?
>>>>
>>>> I am looking for some ideas asap.
>>>>
>>>> Thank u very much.
>>>>
>>>> Kunkun
>>>>
>>>>
>>>>
------------------------------------------------------------------------
>>>>
>>>>
>>>> _______________________________________________
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>
--
Michael Emmerich
-------------------
Alkacon Software GmbH - The OpenCms Experts
http://www.alkacon.com
http://www.opencms.org
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