org.objectweb.asm.xml

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Java Source Code / Java Documentation » Byte Code » asm » org.objectweb.asm.xml

Provides SAX 2.0 adapters for ASM visitors to convert classes to and from XML. These adapters can be chained with other SAX compliant content handlers and filters, eg. XSLT or XQuery engines. This package is bundled as a separate asm-xml.jar library and requires asm.jar.

ASMContentHandler and SAXClassAdapter/SAXCodeAdapter are using asm-xml.dtd. Here is the example of bytecode to bytecode XSLT transformation.

    SAXTransformerFactory saxtf = ( SAXTransformerFactory) TransformerFactory.newInstance();
    Templates templates = saxtf.newTemplates( xsltSource);

    TransformerHandler handler = saxtf.newTransformerHandler( templates);
    handler.setResult( new SAXResult( new ASMContentHandler( outputStream, computeMax)));

    ClassReader cr = new ClassReader( bytecode);
    cr.accept( new SAXClassAdapter( handler, cr.getVersion(), false), false);

See JAXP and SAX documentation for more detils.

There are few illustrations of the bytecode transformation with XSLT in examples directory. The following XSLT procesors has been tested.

Engine javax.xml.transform.TransformerFactory property

jd.xslt jd.xml.xslt.trax.TransformerFactoryImpl

Saxon net.sf.saxon.TransformerFactoryImpl

Caucho com.caucho.xsl.Xsl

Xalan interpeter org.apache.xalan.processor.TransformerFactory

Xalan xsltc org.apache.xalan.xsltc.trax.TransformerFactoryImpl

@since ASM 1.4.3

Java Source File Name Type Comment

ASMContentHandler.java Class A org.xml.sax.ContentHandler ContentHandler that transforms XML document into Java class file.

ASMContentHandlerUnitTest.java Class

Processor.java Class Processor is a command line tool that can be used for bytecode waving directed by XSL transformation.

SAXAdapter.java Class

SAXAdapterTest.java Class

SAXAdapterUnitTest.java Class

SAXAnnotationAdapter.java Class

SAXClassAdapter.java Class A org.objectweb.asm.ClassVisitor ClassVisitor that generates SAX 2.0 events from the visited class.

SAXCodeAdapter.java Class A MethodVisitor that generates SAX 2.0 events from the visited method.

SAXFieldAdapter.java Class

XMLPerfTest.java Class

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