FileDocCategorySizeDatePackage
Transform.javaAPI DocJava SE 5 API10014Fri Aug 26 14:55:32 BST 2005com.sun.org.apache.xalan.internal.xsltc.cmdline

Transform

public final class Transform extends Object
author
Jacek Ambroziak
author
Santiago Pericas-Geertsen
author
G. Todd Miller
author
Morten Jorgensen

Fields Summary
private SerializationHandler
_handler
private String
_fileName
private String
_className
private String
_jarFileSrc
private boolean
_isJarFileSpecified
private Vector
_params
private boolean
_uri
private boolean
_debug
private int
_iterations
private static boolean
_allowExit
Constructors Summary
public Transform(String className, String fileName, boolean uri, boolean debug, int iterations)


        
		           
	_fileName = fileName;
	_className = className;
	_uri = uri;
	_debug = debug;
	_iterations = iterations;
  
Methods Summary
public static void_main(java.lang.String[] args)

	try {
	    if (args.length > 0) {
		int i;
		int iterations = -1;
		boolean uri = false, debug = false;
		boolean isJarFileSpecified = false;
		String  jarFile = null;

		// Parse options starting with '-'
		for (i = 0; i < args.length && args[i].charAt(0) == '-"; i++) {
		    if (args[i].equals("-u")) {
			uri = true;
		    }
		    else if (args[i].equals("-x")) {
			debug = true;
		    }
		    else if (args[i].equals("-s")) {
			_allowExit = false;
		    }
		    else if (args[i].equals("-j")) {
			isJarFileSpecified = true;	
			jarFile = args[++i];
		    }
		    else if (args[i].equals("-n")) {
			try {
			    iterations = Integer.parseInt(args[++i]);
			}
			catch (NumberFormatException e) {
			    // ignore
			}
		    }
		    else {
			printUsage();
		    }
		}

		// Enough arguments left ?
		if (args.length - i < 2) printUsage();

		// Get document file and class name
		Transform handler = new Transform(args[i+1], args[i], uri,
		    debug, iterations);
		handler.setJarFileInputSrc(isJarFileSpecified,	jarFile);

		// Parse stylesheet parameters
		Vector params = new Vector();
		for (i += 2; i < args.length; i++) {
		    final int equal = args[i].indexOf('=");
		    if (equal > 0) {
			final String name  = args[i].substring(0, equal);
			final String value = args[i].substring(equal+1);
			params.addElement(new Parameter(name, value));
		    }
		    else {
			printUsage();
		    }
		}

		if (i == args.length) {
		    handler.setParameters(params);
		    handler.doTransform();
		    if (_allowExit) System.exit(0);
		}
	    } else {
		printUsage();
	    }
	}
	catch (Exception e) {
	    e.printStackTrace();
	}
    
private voiddoTransform()

	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());
	    if (_allowExit) System.exit(-1);	    
	}
	catch (RuntimeException e) {
	    if (_debug) e.printStackTrace();
	    System.err.println(new ErrorMsg(ErrorMsg.RUNTIME_ERROR_KEY)+
			       e.getMessage());
	    if (_allowExit) System.exit(-1);
	}
	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());
	    if (_allowExit) System.exit(-1);
	}
	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());
	    if (_allowExit) System.exit(-1);
	}
	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());
	    if (_allowExit) System.exit(-1);
	}
        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());
	    if (_allowExit) System.exit(-1);
        }
	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());
	    if (_allowExit) System.exit(-1);
	}
	catch (Exception e) {
	    if (_debug) e.printStackTrace();
	    System.err.println(new ErrorMsg(ErrorMsg.RUNTIME_ERROR_KEY)+
			       e.getMessage());
	    if (_allowExit) System.exit(-1);
	}
    
public java.lang.StringgetClassName()

return _className;
public java.lang.StringgetFileName()

return _fileName;
public static voidprintUsage()

	System.err.println(new ErrorMsg(ErrorMsg.TRANSFORM_USAGE_STR));
	if (_allowExit) System.exit(-1);
    
private voidsetJarFileInputSrc(boolean flag, java.lang.String jarFile)

	// TODO: at this time we do not do anything with this
	// information, attempts to add the jarfile to the CLASSPATH
	// were successful via System.setProperty, but the effects
	// were not visible to the running JVM. For now we add jarfile
	// to CLASSPATH in the wrapper script that calls this program. 
	_isJarFileSpecified = flag;
	// TODO verify jarFile exists...
	_jarFileSrc = jarFile;	
    
public voidsetParameters(java.util.Vector params)

	_params = params;