File	Doc	Category	Size	Date	Package
ParserUtils.java	API Doc	Glassfish v2 API	20088	Fri May 04 22:33:00 BST 2007	org.apache.jasper.xmlparser

ParserUtils

• java.lang.Object

Fields Summary
static com.sun.org.apache.commons.logging.Log	log
static ErrorHandler	errorHandler An error handler for use when parsing XML documents.
static EntityResolver	entityResolver An entity resolver for use when parsing XML documents.
static String	schemaResourcePrefix
private static final String	SCHEMA_LOCATION_ATTR
private static HashMap	schemaCache
static final String[]	CACHED_DTD_PUBLIC_IDS List of the Public IDs that we cache, and their associated location. This is used by an EntityResolver to return the location of the cached copy of a DTD.
static final String[]	CACHED_DTD_RESOURCE_PATHS
static final String[]	CACHED_SCHEMA_RESOURCE_PATHS

Constructors Summary

Methods Summary
protected TreeNode	convert(TreeNode parent, org.w3c.dom.Node node) Create and return a TreeNode that corresponds to the specified Node, including processing all of the attributes and children nodes. param parent The parent TreeNode (if any) for the new TreeNode param node The XML document Node to be converted // Construct a new TreeNode for this node TreeNode treeNode = new TreeNode(node.getNodeName(), parent); // Convert all attributes of this node NamedNodeMap attributes = node.getAttributes(); if (attributes != null) { int n = attributes.getLength(); for (int i = 0; i < n; i++) { Node attribute = attributes.item(i); treeNode.addAttribute(attribute.getNodeName(), attribute.getNodeValue()); } } // Create and attach all children of this node NodeList children = node.getChildNodes(); if (children != null) { int n = children.getLength(); for (int i = 0; i < n; i++) { Node child = children.item(i); if (child instanceof Comment) continue; if (child instanceof Text) { String body = ((Text) child).getData(); if (body != null) { body = body.trim(); if (body.length() > 0) treeNode.setBody(body); } } else { TreeNode treeChild = convert(treeNode, child); } } } // Return the completed TreeNode graph return (treeNode);
private static javax.xml.validation.Schema	getSchema(org.w3c.dom.Document document) Schema schema = null; Element root = document.getDocumentElement(); NamedNodeMap map = root.getAttributes(); for (int i=0; map!=null && i<map.getLength(); i++) { if (SCHEMA_LOCATION_ATTR.equals(map.item(i).getLocalName())) { String schemaLocation = map.item(i).getNodeValue(); if (Constants.SCHEMA_LOCATION_JSP_20.equals(schemaLocation)) { schema = getSchema( Constants.TAGLIB_SCHEMA_PUBLIC_ID_20); break; } else if (Constants.SCHEMA_LOCATION_JSP_21.equals( schemaLocation)) { schema = getSchema( Constants.TAGLIB_SCHEMA_PUBLIC_ID_21); break; } else if (Constants.SCHEMA_LOCATION_WEBAPP_24.equals( schemaLocation)) { schema = getSchema( Constants.WEBAPP_SCHEMA_PUBLIC_ID_24); break; } else if (Constants.SCHEMA_LOCATION_WEBAPP_25.equals( schemaLocation)) { schema = getSchema( Constants.WEBAPP_SCHEMA_PUBLIC_ID_25); break; } else { throw new JasperException(Localizer.getMessage( "jsp.error.parse.unknownTldSchemaLocation", document.getDocumentURI(), map.item(i).getNodeValue())); } } } return schema;
private static javax.xml.validation.Schema	getSchema(java.lang.String schemaPublicId) Schema schema = schemaCache.get(schemaPublicId); if (schema == null) { synchronized (schemaCache) { schema = schemaCache.get(schemaPublicId); if (schema == null) { SchemaFactory schemaFactory = SchemaFactory.newInstance( XMLConstants.W3C_XML_SCHEMA_NS_URI); schemaFactory.setResourceResolver( new MyLSResourceResolver()); schemaFactory.setErrorHandler(new MyErrorHandler()); schema = schemaFactory.newSchema(new StreamSource( ParserUtils.class.getResourceAsStream( schemaResourcePrefix + schemaPublicId))); schemaCache.put(schemaPublicId, schema); } } } return schema;
public TreeNode	parseXMLDocument(java.lang.String uri, org.xml.sax.InputSource is) Parse the specified XML document, and return a TreeNode that corresponds to the root node of the document tree. param uri URI of the XML document being parsed param is Input source containing the deployment descriptor exception JasperException if an I/O or parsing error has occurred return parseXMLDocument(uri, is, false);
public TreeNode	parseXMLDocument(java.lang.String uri, org.xml.sax.InputSource is, boolean validate) Parse the specified XML document, and return a TreeNode that corresponds to the root node of the document tree. param uri URI of the XML document being parsed param is Input source containing the deployment descriptor param validate true if the XML document needs to be validated against its DTD or schema, false otherwise exception JasperException if an I/O or parsing error has occurred Document document = null; // Perform an XML parse of this document, via JAXP try { DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); factory.setNamespaceAware(true); /* See CR 6399139 factory.setFeature( "http://apache.org/xml/features/validation/dynamic", true); */ DocumentBuilder builder = factory.newDocumentBuilder(); builder.setEntityResolver(entityResolver); builder.setErrorHandler(errorHandler); document = builder.parse(is); document.setDocumentURI(uri); if (validate) { Schema schema = getSchema(document); if (schema != null) { // Validate TLD against specified schema schema.newValidator().validate(new DOMSource(document)); } /* See CR 6399139 else { log.warn(Localizer.getMessage( "jsp.warning.dtdValidationNotSupported")); } */ } } catch (ParserConfigurationException ex) { throw new JasperException (Localizer.getMessage("jsp.error.parse.xml", uri), ex); } catch (SAXParseException ex) { throw new JasperException (Localizer.getMessage("jsp.error.parse.xml.line", uri, Integer.toString(ex.getLineNumber()), Integer.toString(ex.getColumnNumber())), ex); } catch (SAXException sx) { throw new JasperException (Localizer.getMessage("jsp.error.parse.xml", uri), sx); } catch (IOException io) { throw new JasperException (Localizer.getMessage("jsp.error.parse.xml", uri), io); } // Convert the resulting document to a graph of TreeNodes return (convert(null, document.getDocumentElement()));
public TreeNode	parseXMLDocument(java.lang.String uri, java.io.InputStream is) Parse the specified XML document, and return a TreeNode that corresponds to the root node of the document tree. param uri URI of the XML document being parsed param is Input stream containing the deployment descriptor exception JasperException if an I/O or parsing error has occurred return parseXMLDocument(uri, new InputSource(is), false);
public TreeNode	parseXMLDocument(java.lang.String uri, java.io.InputStream is, boolean validate) Parse the specified XML document, and return a TreeNode that corresponds to the root node of the document tree. param uri URI of the XML document being parsed param is Input stream containing the deployment descriptor param validate true if the XML document needs to be validated against its DTD or schema, false otherwise exception JasperException if an I/O or parsing error has occurred return parseXMLDocument(uri, new InputSource(is), validate);
public static void	setDtdResourcePrefix(java.lang.String prefix) Sets the path prefix for .dtd resources for (int i=0; i<CACHED_DTD_RESOURCE_PATHS.length; i++) { String path = CACHED_DTD_RESOURCE_PATHS[i]; int index = path.lastIndexOf('/"); if (index != -1) { CACHED_DTD_RESOURCE_PATHS[i] = prefix + path.substring(index+1); } }
public static void	setSchemaResourcePrefix(java.lang.String prefix) Sets the path prefix for .xsd resources // END PWC 6386258 // --------------------------------------------------------- Static Methods // START PWC 6386258 schemaResourcePrefix = prefix; for (int i=0; i<CACHED_SCHEMA_RESOURCE_PATHS.length; i++) { String path = CACHED_SCHEMA_RESOURCE_PATHS[i]; int index = path.lastIndexOf('/"); if (index != -1) { CACHED_SCHEMA_RESOURCE_PATHS[i] = prefix + path.substring(index+1); } }