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package com.jclark.xsl.sax;
import org.xml.sax.*;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.File;
import java.io.FileDescriptor;
import java.net.URL;
public class Driver {
static class ErrorHandlerImpl implements ErrorHandler {
public void warning(SAXParseException e) {
printSAXParseException(e);
}
public void error(SAXParseException e) {
printSAXParseException(e);
}
public void fatalError(SAXParseException e) throws SAXException {
throw e;
}
}
public static void main(String[] args) {
XSLProcessorImpl xsl = new XSLProcessorImpl();
setParser(xsl);
xsl.setErrorHandler(new ErrorHandlerImpl());
int nArgs = 0;
for (int i = 0; i < args.length; i++) {
int k = args[i].indexOf('=');
if (k > 0)
xsl.setParameter(args[i].substring(0, k),
args[i].substring(k + 1));
else
args[nArgs++] = args[i];
}
if (nArgs != 2 && nArgs != 3) {
System.err.println("usage: java com.jclark.xsl.sax.Driver source stylesheet [result] [param=value]...");
System.exit(1);
}
OutputMethodHandlerImpl outputMethodHandler = new OutputMethodHandlerImpl(xsl);
xsl.setOutputMethodHandler(outputMethodHandler);
boolean succeeded = true;
File in = new File(args[0]);
File stylesheet = new File(args[1]);
File out = nArgs == 3 ? new File(args[2]) : null;
if (!in.isDirectory())
succeeded = transformFile(xsl, outputMethodHandler, in, stylesheet, out);
else {
String[] inFiles = in.list();
for (int i = 0; i < inFiles.length; i++) {
File inFile = new File(in, inFiles[i]);
if (!inFile.isDirectory()) {
if (!stylesheet.isDirectory()) {
// FIXME optimize this case by loading the stylesheet only once
if (!transformFile(xsl, outputMethodHandler,
inFile, stylesheet, new File(out, inFiles[i])))
succeeded = false;
}
else {
int ext = inFiles[i].lastIndexOf('.');
File stylesheetFile
= new File(stylesheet,
ext < 0
? inFiles[i]
: inFiles[i].substring(0, ext) + ".xsl");
if (stylesheetFile.exists()
&& !transformFile(xsl,
outputMethodHandler,
inFile,
stylesheetFile,
new File(out, inFiles[i])))
succeeded = false;
}
}
}
}
if (!succeeded)
System.exit(1);
}
static boolean transformFile(XSLProcessor xsl,
OutputMethodHandlerImpl outputMethodHandler,
File inputFile,
File stylesheetFile,
File outputFile) {
Destination dest;
if (outputFile == null)
dest = new FileDescriptorDestination(FileDescriptor.out);
else
dest = new FileDestination(outputFile);
outputMethodHandler.setDestination(dest);
return transform(xsl,
fileInputSource(stylesheetFile),
fileInputSource(inputFile));
}
static boolean transform(XSLProcessor xsl,
InputSource stylesheetSource,
InputSource inputSource) {
try {
xsl.loadStylesheet(stylesheetSource);
xsl.parse(inputSource);
return true;
}
catch (SAXParseException e) {
printSAXParseException(e);
}
catch (SAXException e) {
System.err.println(e.getMessage());
}
catch (IOException e) {
System.err.println(e.toString());
}
return false;
}
static void printSAXParseException(SAXParseException e) {
String systemId = e.getSystemId();
int lineNumber = e.getLineNumber();
if (systemId != null)
System.err.print(systemId + ":");
if (lineNumber >= 0)
System.err.print(lineNumber + ":");
if (systemId != null || lineNumber >= 0)
System.err.print(" ");
System.err.println(e.getMessage());
}
static void setParser(XSLProcessorImpl xsl) {
String parserClass = System.getProperty("com.jclark.xsl.sax.parser");
if (parserClass == null)
parserClass = System.getProperty("org.xml.sax.parser");
if (parserClass == null)
parserClass = "com.jclark.xml.sax.CommentDriver";
try {
Object parserObj = Class.forName(parserClass).newInstance();
if (parserObj instanceof XMLProcessorEx)
xsl.setParser((XMLProcessorEx)parserObj);
else
xsl.setParser((Parser)parserObj);
return;
}
catch (ClassNotFoundException e) {
System.err.println(e.toString());
}
catch (InstantiationException e) {
System.err.println(e.toString());
}
catch (IllegalAccessException e) {
System.err.println(e.toString());
}
catch (ClassCastException e) {
System.err.println(parserClass + " is not a SAX driver");
}
System.exit(1);
}
/**
* Generates an <code>InputSource</code> from a file name.
*/
static public InputSource fileInputSource(String str) {
return fileInputSource(new File(str));
}
static public InputSource fileInputSource(File file) {
String path = file.getAbsolutePath();
String fSep = System.getProperty("file.separator");
if (fSep != null && fSep.length() == 1)
path = path.replace(fSep.charAt(0), '/');
if (path.length() > 0 && path.charAt(0) != '/')
path = '/' + path;
try {
return new InputSource(new URL("file", "", path).toString());
}
catch (java.net.MalformedURLException e) {
/* According to the spec this could only happen if the file
protocol were not recognized. */
throw new Error("unexpected MalformedURLException");
}
}
}
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