Hy;
I run into following problem:
I have separated my sitemap into a master and a
sub sitemap. My application works fine with this
configuration. Today i added some documentation
lines to the master sitemap. Directly after i saved
the mastersitemap, cocoon constantly rejects
processing my pages with a null pointer exception in
XSLTProcessorImpl.getTransformerHandler(
Source stylesheet,
XMLFilter filter)
After restarting cocoon, everything works again.
The problem does NOT occur, when i modify the
sub sitemap! This behaviour is reproducible on my
site. Only my pages are affected. (I did not check,
what happens, when i touch the cocoon sitemap itself.)
I searched the mailinglists and bugzilla and found some
hints, that point to the class and even the method
mentioned above, but they don't seem to fit to the problem
i encounter.
my preliminary results on code investigation:
---------------------------------------------
I found, that the instance variable "store" of the XSLTProcessorImpl
instance is set to NULL. The exact cause of the exception is in method
getTemplates() (below the offending statement marked with "<===" )
private Templates getTemplates(Source stylesheet, String id)
throws ProcessingException, IOException, SAXException {
if (!useStore) {
return null;
}
if (getLogger().isDebugEnabled()) {
getLogger().debug("XSLTProcessorImpl getTemplates: stylesheet " + id);
}
// Only stylesheets with a last modification date are stored
if (stylesheet.getLastModified() == 0) {
// Remove an old template
store.remove(id); <=== This statement fails because store==NULL
return null;
}
. . .
But i can't figure out, why store is NOT set after all, or better, why
it is set to NULL after modifying the sitemap...
my environment:
---------------
cocoon-2.0.3
tomcat-4.1.12
solaris-2.6
java-1.3
i use a local-catalog configured in cocoon.xconf
additional note: the bahaviour occurs with xalan AND with saxon
Did anyone hit the same problem ?
Is there something i can do against it ?
Maybe there is an error in my sitemaps, that causes such a problem?
I include the two sitempas as attachement in case that someone might
want to have a look at them. (i renamed the sitemaps so that they
can be easier destinguished in the attachement, on my site the reside
in different directories and are both named "sitemap.xconf")
Any hint would be highly appreciated...
regards, Hussayn
<?xml version="1.0"?>
<map:sitemap xmlns:map="http://apache.org/cocoon/sitemap/1.0";>
<map:components>
<map:generators default="file"/>
<map:transformers default="xslt">
<map:transformer name="xslt"
src="org.apache.cocoon.transformation.TraxTransformer"/>
<map:transformer name="xslt-with-params"
src="org.apache.cocoon.transformation.TraxTransformer">
<use-request-parameters>true</use-request-parameters>
</map:transformer>
</map:transformers>
<map:readers default="resource"/>
<map:serializers default="html">
<map:serializer name="css" mime-type="text/css"
src="org.apache.cocoon.serialization.HTMLSerializer"/>
<map:serializer name="html" mime-type="text/html"
src="org.apache.cocoon.serialization.HTMLSerializer">
<doctype-public>-//W3C//DTD HTML 4.01 Transitional//EN</doctype-public>
</map:serializer>
<map:serializer name="xml" mime-type="text/plain"
src="org.apache.cocoon.serialization.XMLSerializer">
<indent>yes</indent>
<encoding>ISO-8859-1</encoding>
</map:serializer>
</map:serializers>
<map:matchers default="wildcard">
<map:matcher name="wildcard"
src="org.apache.cocoon.matching.WildcardURIMatcherFactory"/>
</map:matchers>
</map:components>
<map:pipelines>
<map:pipeline>
<!-- homepage -->
<map:match pattern="">
<map:redirect-to session="false" uri="metasearch/page/search"/>
</map:match>
<!-- html files -->
<map:match pattern="**.html">
<map:read src="{1}.html" mime-type="text/plain"/>
</map:match>
<!-- image files -->
<map:match pattern="**.gif">
<map:read src="{1}.gif" mime-type="image/gif"/>
</map:match>
<!-- css stylesheets -->
<map:match pattern="**.css">
<map:generate src = "css/commons.xml"/>
<map:transform src = "css/commons.xsl"/>
<map:serialize type="css"/>
</map:match>
<map:match pattern="page/**">
<map:mount check-reload="yes" src="page/sitemap.xmap" uri-prefix="page"/>
</map:match>
</map:pipeline>
</map:pipelines>
</map:sitemap>
<?xml version="1.0"?>
<map:sitemap xmlns:map="http://apache.org/cocoon/sitemap/1.0";>
<map:components>
<map:generators default="file"/>
<map:transformers default="xslt"/>
<map:readers default="resource"/>
<map:serializers default="html"/>
<map:matchers default="wildcard"/>
</map:components>
<map:pipelines>
<map:pipeline>
<map:match pattern="*/canvas/*">
<map:generate src="{1}.xml"/>
<map:transform type="xslt" src="xsl/{2}.xsl">
<map:parameter name="applets-allowed" value="false"/>
<map:parameter name="use-request-parameters" value="true"/>
<map:parameter name="context" value="{1}"/>
</map:transform>
<map:serialize type = "xml"/>
</map:match>
<!-- =============================================================== -->
<!-- This map is for "canvas" parts only. Note, that we need to -->
<!-- distinguish the different contexts, because each context has -->
<!-- a different canvas (need to change that later to a more general -->
<!-- concept. -->
<!-- The request has the form part/canvas/{1} -->
<!-- {1} the context "search", "history", "organizer", etc... -->
<!-- =============================================================== -->
<!-- =============================================================== -->
<!-- This is for the search context
-->
<!-- We break up the search context into the "collection" and the -->
<!-- "searchmask" parts as follows: -->
<!-- -->
<!-- *=============================*=============================* -->
<!-- | | | -->
<!-- |page/search/canvas/collection|page/search/canvas/searchmask| -->
<!-- | | | -->
<!-- *=============================*=============================* -->
<!-- -->
<!-- =============================================================== -->
<!-- This is for the search2 context -->
<!-- Note: Only for test purposes! -->
<map:match pattern="search2/canvas">
<map:aggregate element="canvas">
<map:part element = "collection" src="cocoon:/search2/canvas/collection"/>
<map:part element = "mask" src="cocoon:/search2/canvas/search_mask"/>
</map:aggregate>
<map:transform type="xslt" src = "xsl/search_canvas.xsl">
<map:parameter name="use-request-parameters" value="true"/>
<map:parameter name="context" value="search"/>
</map:transform>
<map:serialize type = "xml"/>
</map:match>
<map:match pattern="search/canvas">
<map:aggregate element="canvas">
<map:part element = "collection" src="cocoon:/search/canvas/collection"/>
<map:part element = "mask" src="cocoon:/search/canvas/search_mask"/>
</map:aggregate>
<map:transform type="xslt" src = "xsl/search_canvas.xsl">
<map:parameter name="use-request-parameters" value="true"/>
<map:parameter name="context" value="search"/>
</map:transform>
<map:serialize type = "xml"/>
</map:match>
<map:match pattern="history/canvas">
<map:aggregate element="canvas">
<map:part element = "collection" src="cocoon:/history/canvas/collection"/>
<map:part element = "mask" src="cocoon:/history/canvas/search_mask"/>
<map:part element = "history" src="cocoon:/history/canvas/history"/>
</map:aggregate>
<map:transform type="xslt" src = "xsl/history_canvas.xsl">
<map:parameter name="use-request-parameters" value="true"/>
<map:parameter name="context" value="search"/>
</map:transform>
<map:serialize type = "xml"/>
</map:match>
<map:match pattern="agent/canvas">
<map:aggregate element="canvas">
<map:part element = "mask" src="cocoon:/agent/canvas/search_mask"/>
<map:part element = "agent" src="cocoon:/agent/canvas/agent"/>
</map:aggregate>
<map:transform type="xslt" src = "xsl/agent_canvas.xsl">
<map:parameter name="use-request-parameters" value="true"/>
<map:parameter name="context" value="search"/>
</map:transform>
<map:serialize type = "xml"/>
</map:match>
<map:match pattern="agent_config/canvas">
<map:aggregate element="canvas">
<map:part element = "agent_config"
src="cocoon:/agent_config/canvas/agent_config_item"/>
</map:aggregate>
<map:transform type="xslt" src = "xsl/agent_config_canvas.xsl">
<map:parameter name="use-request-parameters" value="true"/>
<map:parameter name="context" value="search"/>
</map:transform>
<map:serialize type = "xml"/>
</map:match>
<map:match pattern="result/canvas">
<map:aggregate element="canvas">
<map:part element = "statistic" src="cocoon:/result/canvas/statistic"/>
<map:part element = "collection" src="cocoon:/result/canvas/collection"/>
<map:part element = "search_params"
src="cocoon:/result/canvas/search_params"/>
<!--map:part element = "mask"
src="cocoon:/result/canvas/search_mask"/-->
<map:part element = "resultset" src="cocoon:/result/canvas/resultset"/>
</map:aggregate>
<map:transform type="xslt" src = "xsl/result_canvas.xsl">
<map:parameter name="use-request-parameters" value="true"/>
<map:parameter name="context" value="result"/>
</map:transform>
<map:serialize type = "xml"/>
</map:match>
<map:match pattern="ltitleinfo/canvas">
<map:generate src="ltitleinfo.xml"/>
<map:transform type="xslt" src = "xsl/titleinfo_canvas.xsl">
<map:parameter name="use-request-parameters" value="true"/>
<map:parameter name="context" value="ltitleinfo"/>
</map:transform>
<map:serialize type = "xml"/>
</map:match>
<map:match pattern="*/canvas">
<map:generate src="{1}.xml"/>
<map:transform type="xslt" src = "xsl/{1}_canvas.xsl">
<map:parameter name="use-request-parameters" value="true"/>
<map:parameter name="context" value="{1}"/>
</map:transform>
<map:serialize type = "xml"/>
</map:match>
<!-- =============================================================== -->
<!-- This map is for "menu" and "profile" parts only. -->
<!-- The requets has the form page/{1}/{2}/{3} -->
<!-- {1} the context e.g. "search, "history", ... -->
<!-- {2} "menu" or "profile" -->
<!-- =============================================================== -->
<map:match pattern="*/*">
<map:generate src = "{2}.xml"/>
<map:transform type="xslt" src = "xsl/{2}.xsl">
<map:parameter name="use-request-parameters" value="true"/>
<map:parameter name="context" value="{1}"/>
</map:transform>
<map:serialize type = "xml"/>
</map:match>
<!-- =============================================================== -->
<!-- main pages are always built from "profile", "menu" and "canvas" -->
<!-- -->
<!-- *=================================*=========================* -->
<!-- | | | -->
<!-- | page/context/userprofile | page/context/menu/* | -->
<!-- | | | -->
<!-- *=================================*=========================* -->
<!-- | | -->
<!-- | | -->
<!-- | page/context/canvas/* | -->
<!-- | | -->
<!-- | | -->
<!-- *===========================================================* -->
<!-- -->
<!-- =============================================================== -->
<map:match pattern="*">
<map:aggregate element="page">
<map:part element = "profile" src="cocoon:/{1}/userprofile"/>
<map:part element = "menu" src="cocoon:/{1}/menu"/>
<map:part element = "canvas" src="cocoon:/{1}/canvas"/>
</map:aggregate>
<map:transform src="xsl/page.xsl"/>
<map:serialize/>
</map:match>
</map:pipeline>
</map:pipelines>
</map:sitemap>
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