void getAttributes(Object node, String localName, String namespaceUri, List result) {
if (node instanceof Element) {
Element e = (Element) node;
if (localName == null) {
result.addAll(e.getAttributes());
} else {
Attribute attr = e.getAttribute(localName, Namespace.getNamespace("", namespaceUri));
if (attr != null) {
result.add(attr);
}
}
} else if (node instanceof ProcessingInstruction) {
ProcessingInstruction pi = (ProcessingInstruction) node;
if ("target".equals(localName)) {
result.add(new Attribute("target", pi.getTarget()));
} else if ("data".equals(localName)) {
result.add(new Attribute("data", pi.getData()));
} else {
result.add(new Attribute(localName, pi.getValue(localName)));
}
} else if (node instanceof DocType) {
DocType doctype = (DocType) node;
if ("publicId".equals(localName)) {
result.add(new Attribute("publicId", doctype.getPublicID()));
} else if ("systemId".equals(localName)) {
result.add(new Attribute("systemId", doctype.getSystemID()));
} else if ("elementName".equals(localName)) {
result.add(new Attribute("elementName", doctype.getElementName()));
}
}
}
/**
* This method tells you the line of the XML file being parsed. For an in-memory document, it's
* meaningless. The location is only valid for the current parsing lifecycle, but the document has
* already been parsed. Therefore, it returns -1 for both line and column numbers.
*
* @param document JDOM <code>Document</code>.
*/
private void documentLocator(Document document) {
locator = new JDOMLocator();
String publicID = null;
String systemID = null;
if (document != null) {
DocType docType = document.getDocType();
if (docType != null) {
publicID = docType.getPublicID();
systemID = docType.getSystemID();
}
}
locator.setPublicId(publicID);
locator.setSystemId(systemID);
locator.setLineNumber(-1);
locator.setColumnNumber(-1);
contentHandler.setDocumentLocator(locator);
}
// Example catalog.xml file contents
//
// <?xml version="1.0"?>
// <!-- commented out to prevent network access
// !DOCTYPE catalog PUBLIC "-//OASIS//DTD Entity Resolution XML Catalog V1.0//EN"
// "http://www.oasis-open.org/committees/entity/release/1.0/catalog.dtd"
// -->
// <catalog xmlns="urn:oasis:names:tc:entity:xmlns:xml:catalog">
// <group prefer="public" xml:base="">
// <public
// publicId="-//AIAA//DTD for Flight Dynamic Models - Functions 2.0//EN"
// uri="schemas/DAVEfunc.dtd"/>
//
// <public
// publicId="-//W3C//DTD MathML 2.0//EN"
// uri="schemas/mathml2.dtd"/>
//
// </group>
// </catalog>
public Document load() throws IOException {
Document doc = null;
XMLCatalogResolver cr = null;
String directory_uri = this.base_uri.substring(0, this.base_uri.lastIndexOf('/'));
String errorLine = "No error.";
boolean tryValidationFlag = true;
int numberOfFailures = 0;
boolean success = false;
while (numberOfFailures < 2 && !success) {
success = true;
errorLine = "Error when attempting validation...";
// see if we can open the file first, and deal with any exceptions
try {
// open the XML file
_inputStream = new FileInputStream(this.inputFileName);
assert (_inputStream != null);
} catch (IOException e) {
System.err.println("Error opening file '" + this.inputFileName + "': " + e.getMessage());
System.exit(-1);
}
// now see if we can parse it; try with and without validation
try {
// Load XML into JDOM Document
SAXBuilder builder = new SAXBuilder(tryValidationFlag);
// must turn off Xerces desire to load external DTD regardless of validation
builder.setFeature("http://apache.org/xml/features/nonvalidating/load-external-dtd", false);
if (tryValidationFlag) {
String[] catalogs;
// environment variable XML_CATALOG_FILES trumps properties file
String xml_catalog_files = System.getenv("XML_CATALOG_FILES");
if (xml_catalog_files == null) {
xml_catalog_files = System.getProperty("xml.catalog.files");
}
if (xml_catalog_files != null) {
catalogs =
new String[] {xml_catalog_files, "catalog.xml", "catalog", "file:/etc/xml/catalog"};
} else {
catalogs = new String[] {"catalog.xml", "catalog", "file:/etc/xml/catalog"};
}
cr = new XMLCatalogResolver(catalogs);
// // here to test stuff
//
// cr.setUseLiteralSystemId(false);
//
// boolean preferPublic = cr.getPreferPublic();
// if (preferPublic)
// System.out.println("Prefer public");
// else
// System.out.println("Prefer system");
//
// System.out.println("call to resolvePublic for DAVE-ML models
// gives:");
// System.out.println(cr.resolvePublic("-//AIAA//DTD for Flight Dynamic
// Models - Functions 2.0//EN",
// "http://www.daveml.org/DTDs/2p0/DAVEfunc.dtd"));
//
// System.out.println();
//
// System.out.println("call to resolvePublic for MathML2 namespace
// gives:");
// System.out.println(cr.resolvePublic("-//W3C//DTD MathML 2.0//EN",
// "http://www.w3.org/Math/DTD/mathml2/mathml2.dtd"));
//
} else {
cr = null;
}
builder.setEntityResolver(cr);
doc = builder.build(_inputStream, directory_uri);
} catch (java.io.FileNotFoundException e) {
errorLine = errorLine + e.getMessage();
numberOfFailures++;
success = false;
} catch (java.net.UnknownHostException e) {
errorLine = errorLine + " (network unavailable)";
numberOfFailures++;
success = false;
} catch (java.net.ConnectException e) {
errorLine = errorLine + " (connection timed out)";
numberOfFailures++;
success = false;
} catch (java.io.IOException e) {
errorLine = errorLine + " (general I/O problem)";
numberOfFailures++;
success = false;
} catch (JDOMException e) {
errorLine = errorLine + "\n" + e.getMessage();
numberOfFailures++;
success = false;
}
if (numberOfFailures == 1 && !success) {
System.err.println(errorLine);
System.err.println("Proceeding without validation.");
tryValidationFlag = false;
_inputStream.close();
}
}
if (!success && numberOfFailures >= 2) {
_inputStream.close();
System.err.println(errorLine);
System.err.println(
"Unable to load file successfully (tried with and without validation), aborting.");
System.exit(-1);
}
// if (success && this.isVerbose()) {
if (success) {
System.out.println("Loaded '" + this.inputFileName + "' successfully, ");
org.jdom.DocType dt = doc.getDocType();
switch (numberOfFailures) {
case 0: // validated against some DTD
System.out.print("Validating against '");
String catalogURI = cr.resolvePublic(dt.getPublicID(), dt.getSystemID());
if (catalogURI == null) {
System.out.print(dt.getSystemID());
} else {
System.out.print(catalogURI);
}
System.out.println(".'");
break;
case 1: // no validation
System.out.println("WITHOUT validation.");
}
}
return doc;
}
