/*******************************************************************************
* Copyright (c) 1998, 2015 Oracle and/or its affiliates. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
* which accompanies this distribution.
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* Contributors:
* Oracle - initial API and implementation from Oracle TopLink
******************************************************************************/
package org.eclipse.persistence.platform.xml.xdk;
import java.io.File;
import java.io.InputStream;
import java.io.IOException;
import java.io.Reader;
import java.net.URL;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.Source;
//import javax.xml.transform.Transformer;
//import javax.xml.transform.TransformerException;
//import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMResult;
import javax.xml.validation.Schema;
import org.w3c.dom.Document;
import org.xml.sax.EntityResolver;
import org.xml.sax.ErrorHandler;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
import oracle.xml.jaxp.JXDocumentBuilderFactory;
import org.eclipse.persistence.platform.xml.XMLParser;
import org.eclipse.persistence.platform.xml.XMLPlatformException;
/**
* <p><b>Purpose</b>: An implementation of XMLParser using Oracle XDK APIs.</p>
*/
public class XDKParser implements XMLParser {
private static final String SCHEMA_LANGUAGE = "http://java.sun.com/xml/jaxp/properties/schemaLanguage";
private static final String XML_SCHEMA = "http://www.w3.org/2001/XMLSchema";
private static final String JAXP_SCHEMA_SOURCE = "http://java.sun.com/xml/jaxp/properties/schemaSource";
private DocumentBuilderFactory documentBuilderFactory;
private EntityResolver entityResolver;
private ErrorHandler errorHandler;
public XDKParser() {
super();
documentBuilderFactory = new JXDocumentBuilderFactory();
setNamespaceAware(true);
setWhitespacePreserving(false);
}
public void setNamespaceAware(boolean isNamespaceAware) {
documentBuilderFactory.setNamespaceAware(isNamespaceAware);
}
public void setWhitespacePreserving(boolean isWhitespacePreserving) {
documentBuilderFactory.setIgnoringElementContentWhitespace(!isWhitespacePreserving);
}
public int getValidationMode() {
if (!documentBuilderFactory.isValidating()) {
return XMLParser.NONVALIDATING;
}
try {
if (null == documentBuilderFactory.getAttribute(SCHEMA_LANGUAGE)) {
return XMLParser.DTD_VALIDATION;
}
} catch (IllegalArgumentException e) {
return XMLParser.DTD_VALIDATION;
}
return XMLParser.SCHEMA_VALIDATION;
}
public void setValidationMode(int validationMode) {
switch (validationMode) {
case XMLParser.NONVALIDATING: {
documentBuilderFactory.setValidating(false);
// documentBuilderFactory.setAttribute(SCHEMA_LANGUAGE, null);
return;
}
case XMLParser.DTD_VALIDATION: {
documentBuilderFactory.setValidating(true);
// documentBuilderFactory.setAttribute(SCHEMA_LANGUAGE, null);
return;
}
case XMLParser.SCHEMA_VALIDATION: {
try {
documentBuilderFactory.setAttribute(SCHEMA_LANGUAGE, XML_SCHEMA);
documentBuilderFactory.setValidating(true);
} catch (IllegalArgumentException e) {
// This parser does not support XML Schema validation so leave it as
// a non-validating parser.
}
return;
}
}
}
public EntityResolver getEntityResolver() {
return entityResolver;
}
public void setEntityResolver(EntityResolver entityResolver) {
this.entityResolver = entityResolver;
}
public ErrorHandler getErrorHandler() {
return errorHandler;
}
public void setErrorHandler(ErrorHandler errorHandler) {
this.errorHandler = errorHandler;
}
public void setXMLSchema(URL url) throws XMLPlatformException {
if (null == url) {
return;
}
try {
documentBuilderFactory.setAttribute(SCHEMA_LANGUAGE, XML_SCHEMA);
documentBuilderFactory.setAttribute(JAXP_SCHEMA_SOURCE, url.toString());
} catch (IllegalArgumentException e) {
// The attribute isn't supported so do nothing
} catch (Exception e) {
XMLPlatformException.xmlPlatformErrorResolvingXMLSchema(url, e);
}
}
public void setXMLSchemas(Object[] schemas) throws XMLPlatformException {
if ((null == schemas) || (schemas.length == 0)) {
return;
}
try {
documentBuilderFactory.setAttribute(SCHEMA_LANGUAGE, XML_SCHEMA);
documentBuilderFactory.setAttribute(JAXP_SCHEMA_SOURCE, schemas);
} catch (IllegalArgumentException e) {
// The attribute isn't supported so do nothing
} catch (Exception e) {
XMLPlatformException.xmlPlatformErrorResolvingXMLSchemas(schemas, e);
}
}
public Document parse(InputSource inputSource) throws XMLPlatformException {
try {
return getDocumentBuilder().parse(inputSource);
} catch (SAXException e) {
throw XMLPlatformException.xmlPlatformParseException(e);
} catch (IOException e) {
throw XMLPlatformException.xmlPlatformParseException(e);
}
}
public Document parse(File file) throws XMLPlatformException {
try {
return getDocumentBuilder().parse(file);
} catch (SAXParseException e) {
throw XMLPlatformException.xmlPlatformSAXParseException(e);
} catch (SAXException e) {
throw XMLPlatformException.xmlPlatformParseException(e);
} catch (IOException e) {
throw XMLPlatformException.xmlPlatformFileNotFoundException(file, e);
}
}
public Document parse(InputStream inputStream) throws XMLPlatformException {
try {
return getDocumentBuilder().parse(inputStream);
} catch (SAXParseException e) {
throw XMLPlatformException.xmlPlatformSAXParseException(e);
} catch (SAXException e) {
throw XMLPlatformException.xmlPlatformParseException(e);
} catch (IOException e) {
throw XMLPlatformException.xmlPlatformParseException(e);
}
}
public Document parse(Reader reader) throws XMLPlatformException {
InputSource inputSource = new InputSource(reader);
return parse(inputSource);
}
public Document parse(Source source) throws XMLPlatformException {
XDKTransformer xformer = new XDKTransformer();
DOMResult domResult = new DOMResult();
xformer.transform(source, domResult);
return (Document)domResult.getNode();
}
public Document parse(URL url) throws XMLPlatformException {
InputStream inputStream = null;
try {
inputStream = url.openStream();
} catch(IOException e) {
throw XMLPlatformException.xmlPlatformParseException(e);
}
boolean hasThrownException = false;
try {
return parse(inputStream);
} catch(RuntimeException e) {
hasThrownException = true;
throw e;
} finally {
try {
inputStream.close();
} catch(IOException e) {
if(!hasThrownException) {
//don't override runtime exception
throw XMLPlatformException.xmlPlatformParseException(e);
}
}
}
}
private DocumentBuilder getDocumentBuilder() {
try {
DocumentBuilder documentBuilder = documentBuilderFactory.newDocumentBuilder();
documentBuilder.setEntityResolver(entityResolver);
documentBuilder.setErrorHandler(errorHandler);
return documentBuilder;
} catch (ParserConfigurationException e) {
throw XMLPlatformException.xmlPlatformParseException(e);
}
}
public void setXMLSchema(Schema schema) {
this.documentBuilderFactory.setSchema(schema);
}
public Schema getXMLSchema() {
return documentBuilderFactory.getSchema();
}
}