private void doTransform()

in xalan/src/main/java/org/apache/xalan/xsltc/cmdline/Transform.java [96:221]
113 lines of code
26 McCabe index (conditional complexity)

    private void doTransform() {
	try {
            final Class clazz = ObjectFactory.findProviderClass(
                _className, ObjectFactory.findClassLoader(), true);
	    final AbstractTranslet translet = (AbstractTranslet)clazz.newInstance();
            translet.postInitialization();

	    // Create a SAX parser and get the XMLReader object it uses
	    final SAXParserFactory factory = SAXParserFactory.newInstance();
	    try {
		factory.setFeature(Constants.NAMESPACE_FEATURE,true);
	    }
	    catch (Exception e) {
		factory.setNamespaceAware(true);
	    }
	    final SAXParser parser = factory.newSAXParser();
	    final XMLReader reader = parser.getXMLReader();

	    // Set the DOM's DOM builder as the XMLReader's SAX2 content handler
            XSLTCDTMManager dtmManager =
                (XSLTCDTMManager)XSLTCDTMManager.getDTMManagerClass()
                                                .newInstance();

	    DTMWSFilter wsfilter;
	    if (translet != null && translet instanceof StripFilter) {
	        wsfilter = new DOMWSFilter(translet);
            } else {
	        wsfilter = null;
            }

            final DOMEnhancedForDTM dom =
                   (DOMEnhancedForDTM)dtmManager.getDTM(
                            new SAXSource(reader, new InputSource(_fileName)),
                            false, wsfilter, true, false, translet.hasIdCall());

	    dom.setDocumentURI(_fileName);
            translet.prepassDocument(dom);

	    // Pass global parameters
	    int n = _params.size();
	    for (int i = 0; i < n; i++) {
		Parameter param = (Parameter) _params.elementAt(i);
		translet.addParameter(param._name, param._value);
	    }

	    // Transform the document
	    TransletOutputHandlerFactory tohFactory = 
		TransletOutputHandlerFactory.newInstance();
	    tohFactory.setOutputType(TransletOutputHandlerFactory.STREAM);
	    tohFactory.setEncoding(translet._encoding);
	    tohFactory.setOutputMethod(translet._method);

	    if (_iterations == -1) {
		translet.transform(dom, tohFactory.getSerializationHandler());
	    }
	    else if (_iterations > 0) {
		long mm = System.currentTimeMillis();
		for (int i = 0; i < _iterations; i++) {
		    translet.transform(dom,
				       tohFactory.getSerializationHandler());
		}
		mm = System.currentTimeMillis() - mm;

		System.err.println("\n<!--");
		System.err.println("  transform  = "
                                   + (((double) mm) / ((double) _iterations))
                                   + " ms");
		System.err.println("  throughput = "
                                   + (1000.0 / (((double) mm)
                                                 / ((double) _iterations)))
                                   + " tps");
		System.err.println("-->");
	    }
	}
	catch (TransletException e) {
	    if (_debug) e.printStackTrace();
	    System.err.println(new ErrorMsg(ErrorMsg.RUNTIME_ERROR_KEY)+
                   e.getMessage());	    
	}
	catch (RuntimeException e) {
	    if (_debug) e.printStackTrace();
	    System.err.println(new ErrorMsg(ErrorMsg.RUNTIME_ERROR_KEY)+
			       e.getMessage());
	}
	catch (FileNotFoundException e) {
	    if (_debug) e.printStackTrace();
	    ErrorMsg err = new ErrorMsg(ErrorMsg.FILE_NOT_FOUND_ERR, _fileName);
	    System.err.println(new ErrorMsg(ErrorMsg.RUNTIME_ERROR_KEY)+
			       err.toString());
	}
	catch (MalformedURLException e) {
	    if (_debug) e.printStackTrace();
	    ErrorMsg err = new ErrorMsg(ErrorMsg.INVALID_URI_ERR, _fileName);
	    System.err.println(new ErrorMsg(ErrorMsg.RUNTIME_ERROR_KEY)+
			       err.toString());
	}
	catch (ClassNotFoundException e) {
	    if (_debug) e.printStackTrace();
	    ErrorMsg err= new ErrorMsg(ErrorMsg.CLASS_NOT_FOUND_ERR,_className);
	    System.err.println(new ErrorMsg(ErrorMsg.RUNTIME_ERROR_KEY)+
			       err.toString());
	}
        catch (UnknownHostException e) {
	    if (_debug) e.printStackTrace();
	    ErrorMsg err = new ErrorMsg(ErrorMsg.INVALID_URI_ERR, _fileName);
	    System.err.println(new ErrorMsg(ErrorMsg.RUNTIME_ERROR_KEY)+
			       err.toString());
        }
	catch (SAXException e) {
	    Exception ex = e.getException();
	    if (_debug) {
		if (ex != null) ex.printStackTrace();
		e.printStackTrace();
	    }
	    System.err.print(new ErrorMsg(ErrorMsg.RUNTIME_ERROR_KEY));
	    if (ex != null)
		System.err.println(ex.getMessage());
	    else
		System.err.println(e.getMessage());
	}
	catch (Exception e) {
	    if (_debug) e.printStackTrace();
	    System.err.println(new ErrorMsg(ErrorMsg.RUNTIME_ERROR_KEY)+
			       e.getMessage());
	}
    }