Saxon

Legacy ID: #4934626 Legacy Poster: jehlund (jehlund)

There are many hits if you google the phrase "The URI xxx does not identify an external java class". The phrase is an error message from SAXON, and it seem to be many problems that could give the same error message. Here is the solution to my problem. Hope it can help some of you, Regards, Jan-Erik Hagelund Short problem description ------------------------- I'm using the saxon that comes bundeled with IDIOM FO (fo to pdf translater), and have upgraded to SAXON 6.5.5 and JDK 1.6.0_06 smthng. Im using these as part of our DITA XML publishing process. I've extended the DITA XML with our own tags and henche also extended the xslt processing with calls to a java program. The TRAX processor that comes with DITA OPEN Toolkit easily run my java calls in the xsl docs, but SAXON did not. The error message from above seemed impossible to fight down. The solution ------------ BUT in the end we found that (and really, from the ant xml code it is close to obvoious, but often one stares oneself blind ...): SAXON requires its own class path, input into saxon as a parameter named "classpathref". It does NOT read your CLASSPATH evironment variable. Code example ------------ This is two snips from the build.xml read by ant, 1-The classpath contents: <path id="project.class.path"> <pathelement location="/this/is/my/path/to/my/java/classes"/> <pathelement location="${fo.lib.dir}/xep/lib/saxon.jar"/> <pathelement location="${fo.lib.dir}/xml-apis.jar"/> <pathelement location="${fo.lib.dir}/xercesImpl.jar"/> <pathelement location="${fo.lib.dir}/resolver.jar"/> <pathelement location="${fo.lib.dir}/icu4j.jar"/> <pathelement location="${fo.lib.dir}/fo.jar"/> </path> 2-Starting saxon, watch the classpathref variable: <java classname="com.icl.saxon.StyleSheet" classpathref="project.class.path" fork="true"> <arg line='-t -o "${buildDir}/stage2.fo"'/> <arg line="${saxon.resolver.command.line}"/> <arg line='"${buildDir}/stage1.xml"'/> <arg line='"${temp.transformation.file}"'/> <arg line='"locale=${document.locale}"'/> <arg line='"customizationDir=${customization.dir}"'/> <arg line='"artworkPrefix=${artworkPrefix}"'/> <arg line='"fileProtocolPrefix=${file.protocol.prefix}"'/> <arg line='"publishRequiredCleanup=${publish.required.cleanup}"'/> <arg line='"disableRelatedLinks=${disableRelatedLinks}"'/> <arg line='"pdfFormatter=${pdf.formatter}"'/> <sysproperty key="xml.catalog.files" value="${xml.catalog.files}"/> </java> 3-The xslt code. Teis java method takes three text arguments. (I've removed company specific names) <xsl:value-of select="myPackage:myMethod(string( @href ), string( @xtrf ), string( ourxmltagindita ))" xmlns:runcmd="java:myPackage.myClass"/>