On Tue, 2007-10-30 at 12:43 +0100, Thorsten Scherler wrote: > Hi all, > > I am trying to get started with cocoon 2.2 development and need to write > my own custom transformer. > > Since I will start from scratch I directly want to start using Spring > instead of Avalon. > > Is there a documentation and/or an example for components that are based > directly on spring instead of avalon that I can use to get familiar? >
I found http://www.mail-archive.com/[EMAIL PROTECTED]/msg39766.html So I defined my transformer in the spring context. <bean id="dispatcher" name="org.apache.cocoon.transformation.Transformer/dispatcher" class="org.apache.forrest.dispatcher.transformation.DispatcherTransformer"/> which is a simple test transformer: package org.apache.forrest.dispatcher.transformation; import org.apache.cocoon.transformation.AbstractSAXTransformer; import org.xml.sax.SAXException; public class DispatcherTransformer extends AbstractSAXTransformer { private StringBuffer xmlBuffer; /** * Receive notification of the beginning of a document. */ public void startDocument() throws SAXException { xmlBuffer = new StringBuffer(); xmlBuffer.append("<?xml version='1.0' encoding='UTF-8'?>\r\n"); xmlBuffer.append("<test/>"); } public void endDocument() throws SAXException{ super.contentHandler.characters(xmlBuffer.toString().toCharArray(), 0, xmlBuffer.length()); } } After "mvn install" I run "mvn jetty:run" and receive an exception in the AbstractSAXTransformer: Caused by: java.lang.NullPointerException at org.apache.cocoon.transformation.AbstractSAXTransformer.setup(AbstractSAXTransformer.java:274) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.setupPipeline(AbstractProcessingPipeline.java:354) When I debug in Eclipse I can see the following cause: LINE:274 = if (getLogger().isDebugEnabled()) { where getLogger() returns when inspecting: "Method "getLogger" with signature "()Lorg/apache/commons/logging/Log;" is not applicable on this object" I reckon I need to configure the logging differently but sadly there seems to very little documentation yet (or at least I could not find it yet). Any idea what I am doing wrong? salu2 > TIA > > salu2 -- Thorsten Scherler thorsten.at.apache.org Open Source Java consulting, training and solutions
