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| package org.dom4j.datatype; |
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| import org.dom4j.Attribute; |
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| import org.dom4j.Document; |
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| import org.dom4j.DocumentFactory; |
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| import org.dom4j.Element; |
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| import org.dom4j.Namespace; |
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| import org.dom4j.QName; |
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| import org.dom4j.io.SAXReader; |
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| import org.xml.sax.EntityResolver; |
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| import org.xml.sax.InputSource; |
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| public class DatatypeDocumentFactory extends DocumentFactory { |
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| private static final boolean DO_INTERN_QNAME = false; |
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| protected static transient DatatypeDocumentFactory singleton |
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| = new DatatypeDocumentFactory(); |
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| private static final Namespace XSI_NAMESPACE = Namespace.get("xsi", |
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| "http://www.w3.org/2001/XMLSchema-instance"); |
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| private static final QName XSI_SCHEMA_LOCATION = QName.get( |
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| "schemaLocation", XSI_NAMESPACE); |
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| private static final QName XSI_NO_SCHEMA_LOCATION = QName.get( |
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| "noNamespaceSchemaLocation", XSI_NAMESPACE); |
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| private SchemaParser schemaBuilder; |
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| private SAXReader xmlSchemaReader = new SAXReader(); |
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| private boolean autoLoadSchema = true; |
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| public DatatypeDocumentFactory() {
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| schemaBuilder = new SchemaParser(this);
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| } |
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| public static DocumentFactory getInstance() {
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| return singleton;
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| } |
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| public void loadSchema(Document schemaDocument) {
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| schemaBuilder.build(schemaDocument);
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| } |
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| public void loadSchema(Document schemaDocument, Namespace targetNamespace) {
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| schemaBuilder.build(schemaDocument, targetNamespace);
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| } |
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| public DatatypeElementFactory getElementFactory(QName elementQName) {
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| DatatypeElementFactory result = null;
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| if (DO_INTERN_QNAME) {
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| elementQName = intern(elementQName);
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| } |
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| DocumentFactory factory = elementQName.getDocumentFactory();
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| if (factory instanceof DatatypeElementFactory) {
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| result = (DatatypeElementFactory) factory;
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| } |
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| return result;
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| } |
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| public Attribute createAttribute(Element owner, QName qname, String value) {
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| if (autoLoadSchema && qname.equals(XSI_NO_SCHEMA_LOCATION)) {
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| Document document = (owner != null) ? owner.getDocument() : null;
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| loadSchema(document, value);
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| } else if (autoLoadSchema && qname.equals(XSI_SCHEMA_LOCATION)) {
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| Document document = (owner != null) ? owner.getDocument() : null;
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| String uri = value.substring(0, value.indexOf(' '));
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| Namespace namespace = owner.getNamespaceForURI(uri);
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| loadSchema(document, value.substring(value.indexOf(' ') + 1),
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| namespace); |
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| } |
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| return super.createAttribute(owner, qname, value);
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| } |
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| protected void loadSchema(Document document, String schemaInstanceURI) {
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| try {
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| EntityResolver resolver = document.getEntityResolver();
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| if (resolver == null) {
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| String msg = "No EntityResolver available for resolving URI: ";
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| throw new InvalidSchemaException(msg + schemaInstanceURI);
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| } |
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| InputSource inputSource = resolver.resolveEntity(null,
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| schemaInstanceURI); |
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| if (resolver == null) {
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| throw new InvalidSchemaException("Could not resolve the URI: "
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| + schemaInstanceURI); |
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| } |
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| Document schemaDocument = xmlSchemaReader.read(inputSource);
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| loadSchema(schemaDocument);
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| } catch (Exception e) { |
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| System.out.println("Failed to load schema: " + schemaInstanceURI);
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| System.out.println("Caught: " + e);
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| e.printStackTrace();
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| throw new InvalidSchemaException("Failed to load schema: "
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| + schemaInstanceURI); |
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| } |
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| } |
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| protected void loadSchema(Document document, String schemaInstanceURI,
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| Namespace namespace) { |
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| try {
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| EntityResolver resolver = document.getEntityResolver();
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| if (resolver == null) {
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| String msg = "No EntityResolver available for resolving URI: ";
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| throw new InvalidSchemaException(msg + schemaInstanceURI);
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| } |
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| InputSource inputSource = resolver.resolveEntity(null,
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| schemaInstanceURI); |
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| if (resolver == null) {
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| throw new InvalidSchemaException("Could not resolve the URI: "
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| + schemaInstanceURI); |
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| } |
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| Document schemaDocument = xmlSchemaReader.read(inputSource);
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| loadSchema(schemaDocument, namespace);
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| } catch (Exception e) { |
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| System.out.println("Failed to load schema: " + schemaInstanceURI);
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| System.out.println("Caught: " + e);
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| e.printStackTrace();
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| throw new InvalidSchemaException("Failed to load schema: "
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| + schemaInstanceURI); |
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| } |
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| } |
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| } |
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