| /* | ||
| * Copyright 2001-2004 (C) MetaStuff, Ltd. All Rights Reserved. | ||
| * | ||
| * This software is open source. | ||
| * See the bottom of this file for the licence. | ||
| * | ||
| * $Id: DatatypeDocumentFactory.java,v 1.7 2004/06/25 08:03:34 maartenc Exp $ | ||
| */ | ||
| package org.dom4j.datatype; | ||
| import org.dom4j.Attribute; | ||
| import org.dom4j.Document; | ||
| import org.dom4j.DocumentFactory; | ||
| import org.dom4j.Element; | ||
| import org.dom4j.Namespace; | ||
| import org.dom4j.QName; | ||
| import org.dom4j.io.SAXReader; | ||
| import org.xml.sax.EntityResolver; | ||
| import org.xml.sax.InputSource; | ||
| /** <p><code>DatatypeDocumentFactory</code> is a factory of XML objects which | ||
| * support the | ||
| * <a href="http://www.w3.org/TR/xmlschema-2/">XML Schema Data Types</a> | ||
| * specification.</p> | ||
| * | ||
| * @author <a href="mailto:jstrachan@apache.org">James Strachan</a> | ||
| * @version $Revision: 1.7 $ | ||
| */ | ||
| public class DatatypeDocumentFactory extends DocumentFactory { | ||
| // XXXX: I don't think interning of QNames is necessary | ||
| private static final boolean DO_INTERN_QNAME = false; | ||
| /** The Singleton instance */ | ||
| static transient DatatypeDocumentFactory singleton = new DatatypeDocumentFactory(); | ||
| private static final Namespace XSI_NAMESPACE | ||
| = Namespace.get( "xsi", "http://www.w3.org/2001/XMLSchema-instance" ); | ||
| private static final QName XSI_SCHEMA_LOCATION | ||
| = QName.get( "schemaLocation", XSI_NAMESPACE ); | ||
| private static final QName XSI_NO_SCHEMA_LOCATION | ||
| = QName.get( "noNamespaceSchemaLocation", XSI_NAMESPACE ); | ||
| /** The builder of XML Schemas */ | ||
| private SchemaParser schemaBuilder; | ||
| /** reader of XML Schemas */ | ||
| 42x | private SAXReader xmlSchemaReader = new SAXReader(); | |
| /** If schemas are automatically loaded when parsing instance documents */ | ||
| 42x | private boolean autoLoadSchema = true; | |
| /** <p>Access to the singleton instance of this factory.</p> | ||
| * | ||
| * @return the default singleon instance | ||
| */ | ||
| public static DocumentFactory getInstance() { | ||
| 66x | return singleton; | |
| } | ||
| 42x | public DatatypeDocumentFactory() { | |
| 42x | schemaBuilder = new SchemaParser(this); | |
| 42x | } | |
| /** Loads the given XML Schema document into this factory so | ||
| * schema-aware Document, Elements and Attributes will be created | ||
| * by this factory. | ||
| * | ||
| * @param schemaDocument is an XML Schema Document instance. | ||
| */ | ||
| public void loadSchema(Document schemaDocument) { | ||
| 8x | schemaBuilder.build( schemaDocument ); | |
| 8x | } | |
| public void loadSchema(Document schemaDocument, Namespace targetNamespace) { | ||
| 0x | schemaBuilder.build( schemaDocument, targetNamespace ); | |
| 0x | } | |
| /** Registers the given <code>DatatypeElementFactory</code> for the given | ||
| * <element> schema element | ||
| */ | ||
| public DatatypeElementFactory getElementFactory( QName elementQName ) { | ||
| if ( DO_INTERN_QNAME ) { | ||
| elementQName = intern( elementQName ); | ||
| } | ||
| 30x | DocumentFactory factory = elementQName.getDocumentFactory(); | |
| 1/2 30x | return (factory instanceof DatatypeElementFactory) | |
| ? (DatatypeElementFactory) factory : null; | ||
| } | ||
| // DocumentFactory methods | ||
| //------------------------------------------------------------------------- | ||
| /* | ||
| public Element createElement(QName qname) { | ||
| DocumentFactory elementFactory = qname.getDocumentFactory(); | ||
| if ( elementFactory != null ) { | ||
| return elementFactory.createElement(qname); | ||
| } | ||
| return super.createElement(qname); | ||
| } | ||
| */ | ||
| public Attribute createAttribute(Element owner, QName qname, String value) { | ||
| 0/4 0x | if ( autoLoadSchema && qname.equals( XSI_NO_SCHEMA_LOCATION ) ) { | |
| 0/2 0x | Document document = (owner != null) ? owner.getDocument() : null; | |
| 0x | loadSchema( document, value ); | |
| } | ||
| 0/4 0x | else if ( autoLoadSchema && qname.equals( XSI_SCHEMA_LOCATION ) ) | |
| { | ||
| 0/2 0x | Document document = (owner != null) ? owner.getDocument() : null; | |
| 0x | Namespace namespace = owner.getNamespaceForURI(value.substring(0,value.indexOf(' '))); | |
| 0x | loadSchema( document, value.substring (value.indexOf(' ')+1), namespace ); | |
| } | ||
| 0x | return super.createAttribute( owner, qname, value ); | |
| } | ||
| // Implementation methods | ||
| //------------------------------------------------------------------------- | ||
| protected void loadSchema( Document document, String schemaInstanceURI ) { | ||
| try { | ||
| 0x | EntityResolver resolver = document.getEntityResolver(); | |
| 0/2 0x | if ( resolver == null ) { | |
| 0x | throw new InvalidSchemaException( "No EntityResolver available so could not resolve the schema URI: " + schemaInstanceURI ); | |
| } | ||
| 0x | InputSource inputSource = resolver.resolveEntity( null, schemaInstanceURI ); | |
| 0/2 0x | if ( resolver == null ) { | |
| 0x | throw new InvalidSchemaException( "Could not resolve the schema URI: " + schemaInstanceURI ); | |
| } | ||
| 0x | Document schemaDocument = xmlSchemaReader.read( inputSource ); | |
| 0x | loadSchema( schemaDocument ); | |
| } | ||
| catch (Exception e) { | ||
| 0x | System.out.println( "Failed to load schema: " + schemaInstanceURI ); | |
| 0x | System.out.println( "Caught: " + e ); | |
| 0x | e.printStackTrace(); | |
| 0x | throw new InvalidSchemaException( "Failed to load schema: " + schemaInstanceURI ); | |
| 0x | } | |
| 0x | } | |
| protected void loadSchema( Document document, String schemaInstanceURI, Namespace namespace ) { | ||
| try { | ||
| 0x | EntityResolver resolver = document.getEntityResolver(); | |
| 0/2 0x | if ( resolver == null ) { | |
| 0x | throw new InvalidSchemaException( "No EntityResolver available so could not resolve the schema URI: " + schemaInstanceURI ); | |
| } | ||
| 0x | InputSource inputSource = resolver.resolveEntity( null, schemaInstanceURI ); | |
| 0/2 0x | if ( resolver == null ) { | |
| 0x | throw new InvalidSchemaException( "Could not resolve the schema URI: " + schemaInstanceURI ); | |
| } | ||
| 0x | Document schemaDocument = xmlSchemaReader.read( inputSource ); | |
| 0x | loadSchema( schemaDocument, namespace ); | |
| } | ||
| catch (Exception e) { | ||
| 0x | System.out.println( "Failed to load schema: " + schemaInstanceURI ); | |
| 0x | System.out.println( "Caught: " + e ); | |
| 0x | e.printStackTrace(); | |
| 0x | throw new InvalidSchemaException( "Failed to load schema: " + schemaInstanceURI ); | |
| 0x | } | |
| 0x | } | |
| } | ||
| /* | ||
| * Redistribution and use of this software and associated documentation | ||
| * ("Software"), with or without modification, are permitted provided | ||
| * that the following conditions are met: | ||
| * | ||
| * 1. Redistributions of source code must retain copyright | ||
| * statements and notices. Redistributions must also contain a | ||
| * copy of this document. | ||
| * | ||
| * 2. Redistributions in binary form must reproduce the | ||
| * above copyright notice, this list of conditions and the | ||
| * following disclaimer in the documentation and/or other | ||
| * materials provided with the distribution. | ||
| * | ||
| * 3. The name "DOM4J" must not be used to endorse or promote | ||
| * products derived from this Software without prior written | ||
| * permission of MetaStuff, Ltd. For written permission, | ||
| * please contact dom4j-info@metastuff.com. | ||
| * | ||
| * 4. Products derived from this Software may not be called "DOM4J" | ||
| * nor may "DOM4J" appear in their names without prior written | ||
| * permission of MetaStuff, Ltd. DOM4J is a registered | ||
| * trademark of MetaStuff, Ltd. | ||
| * | ||
| * 5. Due credit should be given to the DOM4J Project - | ||
| * http://www.dom4j.org | ||
| * | ||
| * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS | ||
| * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT | ||
| * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND | ||
| * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL | ||
| * METASTUFF, LTD. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, | ||
| * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | ||
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | ||
| * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | ||
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | ||
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | ||
| * OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| * | ||
| * Copyright 2001-2004 (C) MetaStuff, Ltd. All Rights Reserved. | ||
| * | ||
| * $Id: DatatypeDocumentFactory.java,v 1.7 2004/06/25 08:03:34 maartenc Exp $ | ||
| */ |