| /* RelaxNGSchemaFactory.java -- |
| Copyright (C) 2006 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU Classpath is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| package gnu.xml.validation.relaxng; |
| |
| import java.io.IOException; |
| import java.net.URL; |
| import javax.xml.XMLConstants; |
| import javax.xml.parsers.DocumentBuilder; |
| import javax.xml.parsers.DocumentBuilderFactory; |
| import javax.xml.parsers.ParserConfigurationException; |
| import javax.xml.transform.Source; |
| import javax.xml.transform.dom.DOMSource; |
| import javax.xml.transform.stream.StreamSource; |
| import javax.xml.validation.Schema; |
| import javax.xml.validation.SchemaFactory; |
| import org.w3c.dom.Document; |
| import org.w3c.dom.Node; |
| import org.w3c.dom.ls.LSResourceResolver; |
| import org.xml.sax.ErrorHandler; |
| import org.xml.sax.InputSource; |
| import org.xml.sax.SAXException; |
| |
| /** |
| * Schema factory for RELAX NG grammars. |
| * |
| * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a> |
| */ |
| public class RELAXNGSchemaFactory |
| extends SchemaFactory |
| { |
| |
| LSResourceResolver resourceResolver; |
| ErrorHandler errorHandler; |
| |
| public LSResourceResolver getResourceResolver() |
| { |
| return resourceResolver; |
| } |
| |
| public void setResourceResolver(LSResourceResolver resourceResolver) |
| { |
| this.resourceResolver = resourceResolver; |
| } |
| |
| public ErrorHandler getErrorHandler() |
| { |
| return this.errorHandler; |
| } |
| |
| public void setErrorHandler(ErrorHandler errorHandler) |
| { |
| this.errorHandler = errorHandler; |
| } |
| |
| public boolean isSchemaLanguageSupported(String schemaLanguage) |
| { |
| return XMLConstants.RELAXNG_NS_URI.equals(schemaLanguage); |
| } |
| |
| public Schema newSchema() |
| throws SAXException |
| { |
| // TODO |
| throw new UnsupportedOperationException(); |
| } |
| |
| public Schema newSchema(Source[] schemata) |
| throws SAXException |
| { |
| if (schemata == null || schemata.length != 1) |
| throw new IllegalArgumentException("must specify one source"); |
| // TODO multiple schemata |
| // TODO compact syntax |
| try |
| { |
| Document doc = getDocument(schemata[0]); |
| FullSyntaxBuilder builder = new FullSyntaxBuilder(); |
| return builder.parse(doc); |
| } |
| catch (IOException e) |
| { |
| SAXException e2 = new SAXException(e.getMessage()); |
| e2.initCause(e); |
| throw e2; |
| } |
| } |
| |
| private static Document getDocument(Source source) |
| throws SAXException, IOException |
| { |
| if (source instanceof DOMSource) |
| { |
| Node node = ((DOMSource) source).getNode(); |
| if (node != null && node instanceof Document) |
| return (Document) node; |
| } |
| String url = source.getSystemId(); |
| try |
| { |
| InputSource input = new InputSource(url); |
| if (source instanceof StreamSource) |
| { |
| StreamSource streamSource = (StreamSource) source; |
| input.setByteStream(streamSource.getInputStream()); |
| input.setCharacterStream(streamSource.getReader()); |
| } |
| if (input.getByteStream() == null && |
| input.getCharacterStream() == null && |
| url != null) |
| input.setByteStream(new URL(url).openStream()); |
| DocumentBuilderFactory f = DocumentBuilderFactory.newInstance(); |
| f.setNamespaceAware(true); |
| f.setCoalescing(true); |
| f.setExpandEntityReferences(true); |
| f.setIgnoringComments(true); |
| f.setIgnoringElementContentWhitespace(true); |
| DocumentBuilder b = f.newDocumentBuilder(); |
| return b.parse(input); |
| } |
| catch (ParserConfigurationException e) |
| { |
| SAXException e2 = new SAXException(e.getMessage()); |
| e2.initCause(e); |
| throw e2; |
| } |
| } |
| |
| } |