/**
* Return whether the given string contains well-formed XML.
*
* @param xmlString string to check
* @return true iif the given string contains well-formed XML
*/
public static boolean isWellFormedXML(String xmlString) {
// Empty string is never well-formed XML
if (xmlString.trim().length() == 0) return false;
try {
final XMLReader xmlReader = newSAXParser(XMLUtils.ParserConfiguration.PLAIN).getXMLReader();
xmlReader.setContentHandler(NULL_CONTENT_HANDLER);
xmlReader.setEntityResolver(ENTITY_RESOLVER);
xmlReader.setErrorHandler(
new org.xml.sax.ErrorHandler() {
public void error(SAXParseException exception) throws SAXException {
throw exception;
}
public void fatalError(SAXParseException exception) throws SAXException {
throw exception;
}
public void warning(SAXParseException exception) throws SAXException {}
});
xmlReader.parse(new InputSource(new StringReader(xmlString)));
return true;
} catch (Exception e) {
// Ideally we would like the parser to not throw as this is time-consuming, but not sure how
// to achieve that
return false;
}
}
/*
* Main method to parse specific MetaData file.
*/
public Collection<Designate> doParse() throws IOException, SAXException {
_dp_xmlReader = _dp_parser.getXMLReader();
_dp_xmlReader.setContentHandler(new RootHandler());
_dp_xmlReader.setErrorHandler(new MyErrorHandler(System.err));
InputStream is = _dp_url.openStream();
InputSource isource = new InputSource(is);
logger.log(LogService.LOG_DEBUG, "Starting to parse " + _dp_url); // $NON-NLS-1$
_dp_xmlReader.parse(isource);
return designates;
}
/**
* start the parsing
*
* @param file to parse
* @return Vector containing the test cases
*/
public XMLcpimParser() {
try {
SAXParserFactory saxParserFactory = SAXParserFactory.newInstance();
saxParser = saxParserFactory.newSAXParser().getXMLReader();
saxParser.setContentHandler(this);
saxParser.setFeature("http://xml.org/sax/features/validation", true);
// parse the xml specification for the event tags.
} catch (Exception e) {
e.printStackTrace();
}
}
public static void parseDocumentFragment(Reader reader, XMLReceiver xmlReceiver)
throws SAXException {
try {
final XMLReader xmlReader = newSAXParser(XMLUtils.ParserConfiguration.PLAIN).getXMLReader();
xmlReader.setContentHandler(new XMLFragmentReceiver(xmlReceiver));
final ArrayList<Reader> readers = new ArrayList<Reader>(3);
readers.add(new StringReader("<root>"));
readers.add(reader);
readers.add(new StringReader("</root>"));
xmlReader.parse(new InputSource(new SequenceReader(readers.iterator())));
} catch (IOException e) {
throw new OXFException(e);
}
}
public static void parseDocumentFragment(String fragment, XMLReceiver xmlReceiver)
throws SAXException {
if (fragment.indexOf("<") != -1 || fragment.indexOf("&") != -1) {
try {
final XMLReader xmlReader = newSAXParser(XMLUtils.ParserConfiguration.PLAIN).getXMLReader();
xmlReader.setContentHandler(new XMLFragmentReceiver(xmlReceiver));
xmlReader.parse(new InputSource(new StringReader("<root>" + fragment + "</root>")));
} catch (IOException e) {
throw new OXFException(e);
}
} else {
// Optimization when fragment looks like text
xmlReceiver.characters(fragment.toCharArray(), 0, fragment.length());
}
}
public int runXmlImport() {
DataImportXmlParser responseHandler = null;
try {
XMLReader parser = EfaUtil.getXMLReader();
responseHandler = new DataImportXmlParser(this, dataAccess);
parser.setContentHandler(responseHandler);
parser.parse(new InputSource(new FileInputStream(filename)));
} catch (Exception e) {
logInfo(e.toString());
errorCount++;
Logger.log(e);
if (Daten.isGuiAppl()) {
Dialog.error(e.toString());
}
}
return (responseHandler != null ? responseHandler.getImportedRecordsCount() : 0);
}
/**
* start the parsing
*
* @param file to parse
* @return Vector containing the test cases
*/
public XMLcpimParser(String fileLocation) {
try {
SAXParserFactory saxParserFactory = SAXParserFactory.newInstance();
saxParser = saxParserFactory.newSAXParser().getXMLReader();
saxParser.setContentHandler(this);
saxParser.setFeature("http://xml.org/sax/features/validation", true);
// parse the xml specification for the event tags.
saxParser.parse(fileLocation);
} catch (SAXParseException spe) {
spe.printStackTrace();
} catch (SAXException sxe) {
sxe.printStackTrace();
} catch (IOException ioe) {
// I/O error
ioe.printStackTrace();
} catch (Exception pce) {
// Parser with specified options can't be built
pce.printStackTrace();
}
}
private static void inputSourceToSAX(
InputSource inputSource,
XMLReceiver xmlReceiver,
XMLUtils.ParserConfiguration parserConfiguration,
boolean handleLexical) {
// Insert XInclude processor if needed
final TransformerURIResolver resolver;
if (parserConfiguration.handleXInclude) {
parserConfiguration =
new XMLUtils.ParserConfiguration(
parserConfiguration.validating,
false,
parserConfiguration.externalEntities,
parserConfiguration.uriReferences);
resolver = new TransformerURIResolver(XMLUtils.ParserConfiguration.PLAIN);
xmlReceiver =
new XIncludeReceiver(null, xmlReceiver, parserConfiguration.uriReferences, resolver);
} else {
resolver = null;
}
try {
final XMLReader xmlReader = newSAXParser(parserConfiguration).getXMLReader();
xmlReader.setContentHandler(xmlReceiver);
if (handleLexical) xmlReader.setProperty(XMLConstants.SAX_LEXICAL_HANDLER, xmlReceiver);
xmlReader.setEntityResolver(ENTITY_RESOLVER);
xmlReader.setErrorHandler(ERROR_HANDLER);
xmlReader.parse(inputSource);
} catch (SAXParseException e) {
throw new ValidationException(e.getMessage(), new LocationData(e));
} catch (Exception e) {
throw new OXFException(e);
} finally {
if (resolver != null) resolver.destroy();
}
}
protected static void addXml(
final SolrInputDocument doc,
final String fieldprefix,
final String textfield,
InputSource input)
throws SAXException, IOException {
XMLReader reader = XMLReaderFactory.createXMLReader();
final StringBuilder text = new StringBuilder();
reader.setContentHandler(
new ContentHandler() {
final Deque<String> parents = new LinkedList<String>();
final Deque<StringBuilder> element_texts = new LinkedList<StringBuilder>();
private String path() {
StringBuilder sb = new StringBuilder(fieldprefix);
for (String el : parents) {
sb.append('/');
sb.append(el);
}
return sb.toString();
}
public void startPrefixMapping(String prefix, String uri) throws SAXException {}
public void startDocument() throws SAXException {}
public void skippedEntity(String name) throws SAXException {}
public void setDocumentLocator(Locator locator) {}
public void processingInstruction(String target, String data) throws SAXException {}
public void ignorableWhitespace(char[] ch, int start, int length) throws SAXException {
text.append(ch, start, length);
element_texts.getLast().append(ch, start, length);
}
public void endPrefixMapping(String prefix) throws SAXException {}
public void endElement(String uri, String localName, String qName) throws SAXException {
addxmltext(doc, path(), element_texts.removeLast());
parents.removeLast();
}
public void endDocument() throws SAXException {
addxmltext(doc, textfield, text);
}
public void characters(char[] ch, int start, int length) throws SAXException {
text.append(ch, start, length);
text.append(' ');
element_texts.getLast().append(ch, start, length);
}
public void startElement(String uri, String localName, String qName, Attributes atts)
throws SAXException {
// ignore namespaces when constructing field names
parents.addLast(localName);
element_texts.addLast(new StringBuilder());
for (int i = 0; i < atts.getLength(); i++) {
String attr_field = path() + "@" + atts.getLocalName(i);
doc.addField(attr_field, atts.getValue(i));
}
}
});
reader.setErrorHandler(
new ErrorHandler() {
public void warning(SAXParseException exception) throws SAXException {
// TODO log?
throw exception;
}
public void fatalError(SAXParseException exception) throws SAXException {
throw exception;
}
public void error(SAXParseException exception) throws SAXException {
throw exception;
}
});
reader.parse(input);
}