Custom PDF/RTF reports with Cocoon (problem with special characters)
Hi all,
I've setup application (APEX 3.0.1) with some custom PDF reports (using Cocoon 2.1.10),
I'm generating my own hierarchical xml structure, using query with xmlelement() and xmlagg() functions,
I cannot use built-in xml generator, because I need to get master-detail report with sub-grouping.
Everything works fine if data in report doesn't contains special characters like "&",
but Cocoon stops processing XML data when it found special character, following error is written to cocoon log:
INFO (2007-10-02) 12:34.16:828 [sitemap.transformer.log] (/cocoon/fop_post/) http-8888-1/LogTransformer: [startElement] uri=,local=PRZEDMIOT,raw=PRZEDMIOT
INFO (2007-10-02) 12:34.16:828 [sitemap.transformer.log] (/cocoon/fop_post/) http-8888-1/LogTransformer: [startCDATA]
INFO (2007-10-02) 12:34.16:828 [sitemap.transformer.log] (/cocoon/fop_post/) http-8888-1/LogTransformer: [characters] PPHU "T
ERROR (2007-10-02) 12:34.16:828 [sitemap.generator.stream] (/cocoon/fop_post/) http-8888-1/StreamGenerator: StreamGenerator.generate()
org.xml.sax.SAXParseException: XML document structures must start and end within the same entity.
ERROR (2007-10-02) 12:34.16:828 [sitemap.handled-errors] (/cocoon/fop_post/) http-8888-1/ErrorHandlerHelper: Failed to process pipeline
at <map:serialize type="xml"> - file:/D:/oraclexe/apache-tomcat-6.0.13/webapps/cocoon/fop_post/sitemap.xmap:22:32
at <map:generate type="stream"> - file:/D:/oraclexe/apache-tomcat-6.0.13/webapps/cocoon/fop_post/sitemap.xmap:18:33
at <map:serialize type="fo2pdf"> - file:/D:/oraclexe/apache-tomcat-6.0.13/webapps/cocoon/fop_post/sitemap.xmap:58:37
at <map:transform> - file:/D:/oraclexe/apache-tomcat-6.0.13/webapps/cocoon/fop_post/sitemap.xmap:51:39
at <map:transform type="log"> - file:/D:/oraclexe/apache-tomcat-6.0.13/webapps/cocoon/fop_post/sitemap.xmap:45:35
at <map:generate> - file:/D:/oraclexe/apache-tomcat-6.0.13/webapps/cocoon/fop_post/sitemap.xmap:42:38
at <map:mount> - file:/D:/oraclexe/apache-tomcat-6.0.13/webapps/cocoon/sitemap.xmap:1034:92
org.xml.sax.SAXParseException: XML document structures must start and end within the same entity.
This error occur when Cocoon process folowing XML entity:
<PRZEDMIOT><![CDATA[PPHU "T&M" Ltd.]]></PRZEDMIOT>
I tried to escape "&" character with CDATA section, but it didn't work.
I tested following alternatives:
<pre>
<PRZEDMIOT>PPHU "T&M" Ltd</PRZEDMIOT>
<PRZEDMIOT><PPHU "T&M" Ltd.></PRZEDMIOT> --remove '<' and '>' characters
<PRZEDMIOT><![CDATA[PPHU "T&M" Ltd.]]></PRZEDMIOT>
</pre>
but I still get the same error.
Can anyone help me with this ?
Thanks
Tomasz K.
Ok, I found that only '&' and '%' characters breaks Cocoon processing.
The workaround is to use replace() function and change:
'&' to '%26' and '%' to '%25', but I think that is a dirty way...
Other characters like " - 'double citation' are succesfully escaped with xmlcdata() function.
Perhaps someone know the simpler way to get Master/Detail PDF reports from APEX without using BI Publisher ???
Actually I have page process invoked by button, which generates XML data, post it to Cocoon with UTL_HTTP and save generated PDF to database table (for future use).
The same button invokes branch to URL with download procedure.
Standard APEX reporting is not very usefull for me, because I don't know how to generate "complex" documents, with several grouping sections.
I will be gratefull for any aid.
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