Hi,
i have a web application that generates a data bean. The content of
this bean should be displayed with the help of cocoon 2.0.4. I tried
to convert the bean into xml with castor and then base64 encode the
xml string, as i wanted to pass the string as parameter in the cocoon
http call. In cocoon i defined an xsp-page - which is the first xsp
code that i wrote - that should decode the String again. The result
however is a NullPointerException. Does anybody have a hint what i am
doing wrong here.
servlet
//populate bean
MyBean tBean = new MyBean();
tBean.set(...)
//convert bean to xml
Writer tWriter = new StringWriter();
Marshaller.marshal(tBean, tWriter);
//base64 encode the result
String tOutput = Base64.encode(tWriter.toString());
cocoon call
http://localhost/cocoon/report.xml?data=<tOutput>
pipeline
<map:match pattern="report.xml">
<map:generate type="serverpages" src="report.xsp"/>
<map:serialize type="xml"/>
</map:match>
severpage
<xsp:logic>
String value = Base64.decode(request.getParameter("data"));
</xsp:logic>
<report>
<data><xsp-request:get-parameter name="data"/></data>
<value><xsp:expr>value</xsp:expr></value>
</report>
Maybe my communication mechanism is too complicated. Now the output is
passed to a small jsp, that automatically starts the call to cocoon.
I'd like to post the xml string directly to cocoon and receive the
data with the stream generator, but i have no idea how this can be
achieved from a servlet.
Thanks for your help
Martin
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