| /* |
| * Copyright (c) 2005, 2006, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code 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 |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package com.sun.org.apache.xalan.internal.xsltc.trax; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| |
| import javax.xml.stream.XMLEventFactory; |
| import javax.xml.stream.XMLStreamException; |
| import javax.xml.stream.events.*; |
| import javax.xml.stream.XMLEventWriter; |
| |
| import org.xml.sax.Attributes; |
| import org.xml.sax.SAXException; |
| import org.xml.sax.ext.Locator2; |
| |
| /** |
| * @author Sunitha Reddy |
| */ |
| public class SAX2StAXEventWriter extends SAX2StAXBaseWriter { |
| |
| |
| private XMLEventWriter writer; |
| |
| |
| private XMLEventFactory eventFactory; |
| |
| |
| private List namespaceStack = new ArrayList(); |
| |
| |
| private boolean needToCallStartDocument = false; |
| |
| |
| public SAX2StAXEventWriter() { |
| |
| eventFactory = XMLEventFactory.newInstance(); |
| |
| } |
| |
| |
| public SAX2StAXEventWriter(XMLEventWriter writer) { |
| |
| this.writer = writer; |
| eventFactory = XMLEventFactory.newInstance(); |
| |
| } |
| |
| public SAX2StAXEventWriter(XMLEventWriter writer, |
| XMLEventFactory factory) { |
| |
| this.writer = writer; |
| if (factory != null) { |
| |
| this.eventFactory = factory; |
| |
| } else { |
| |
| eventFactory = XMLEventFactory.newInstance(); |
| |
| } |
| |
| } |
| |
| public XMLEventWriter getEventWriter() { |
| |
| return writer; |
| |
| } |
| |
| |
| public void setEventWriter(XMLEventWriter writer) { |
| |
| this.writer = writer; |
| |
| } |
| |
| |
| public XMLEventFactory getEventFactory() { |
| |
| return eventFactory; |
| |
| } |
| |
| |
| public void setEventFactory(XMLEventFactory factory) { |
| |
| this.eventFactory = factory; |
| |
| } |
| |
| public void startDocument() throws SAXException { |
| |
| super.startDocument(); |
| |
| namespaceStack.clear(); |
| |
| eventFactory.setLocation(getCurrentLocation()); |
| |
| // Encoding and version info will be available only after startElement |
| // is called for first time. So, defer START_DOCUMENT event of StAX till |
| // that point of time. |
| needToCallStartDocument = true; |
| } |
| |
| private void writeStartDocument() throws SAXException { |
| try { |
| if (docLocator == null) |
| writer.add(eventFactory.createStartDocument()); |
| else { |
| try{ |
| writer.add(eventFactory.createStartDocument(((Locator2)docLocator).getEncoding(),((Locator2)docLocator).getXMLVersion())); |
| } catch(ClassCastException e){ |
| writer.add(eventFactory.createStartDocument()); |
| } |
| } |
| } catch (XMLStreamException e) { |
| throw new SAXException(e); |
| } |
| needToCallStartDocument = false; |
| } |
| |
| public void endDocument() throws SAXException { |
| |
| eventFactory.setLocation(getCurrentLocation()); |
| |
| try { |
| |
| writer.add(eventFactory.createEndDocument()); |
| |
| } catch (XMLStreamException e) { |
| |
| throw new SAXException(e); |
| |
| } |
| |
| super.endDocument(); |
| |
| // clear the namespaces |
| namespaceStack.clear(); |
| |
| } |
| |
| public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException { |
| |
| if (needToCallStartDocument) { |
| writeStartDocument(); |
| } |
| |
| // set document location |
| eventFactory.setLocation(getCurrentLocation()); |
| |
| // create attribute and namespace events |
| Collection[] events = {null, null}; |
| createStartEvents(attributes, events); |
| |
| namespaceStack.add(events[0]); |
| |
| try { |
| |
| String[] qname = {null, null}; |
| parseQName(qName, qname); |
| |
| writer.add(eventFactory.createStartElement(qname[0], uri, |
| qname[1], events[1].iterator(), events[0].iterator())); |
| |
| } catch (XMLStreamException e) { |
| |
| throw new SAXException(e); |
| |
| } finally { |
| |
| super.startElement(uri, localName, qName, attributes); |
| |
| } |
| |
| } |
| |
| public void endElement(String uri, String localName, String qName) |
| throws SAXException { |
| |
| super.endElement(uri, localName, qName); |
| |
| eventFactory.setLocation(getCurrentLocation()); |
| |
| // parse name |
| String[] qname = {null, null}; |
| parseQName(qName, qname); |
| |
| // get namespaces |
| Collection nsList = (Collection) namespaceStack.remove(namespaceStack.size() - 1); |
| Iterator nsIter = nsList.iterator(); |
| |
| try { |
| |
| writer.add(eventFactory.createEndElement(qname[0], uri, qname[1], |
| nsIter)); |
| |
| } catch (XMLStreamException e) { |
| |
| throw new SAXException(e); |
| |
| } |
| |
| } |
| |
| public void comment(char[] ch, int start, int length) throws SAXException { |
| if (needToCallStartDocument) { |
| // Drat. We were trying to postpone this until the first element so that we could get |
| // the locator, but we can't output a comment before the start document, so we're just |
| // going to have to do without the locator if it hasn't been set yet. |
| writeStartDocument(); |
| } |
| |
| super.comment(ch, start, length); |
| |
| eventFactory.setLocation(getCurrentLocation()); |
| try { |
| |
| writer.add(eventFactory.createComment(new String(ch, start, |
| length))); |
| |
| } catch (XMLStreamException e) { |
| |
| throw new SAXException(e); |
| |
| } |
| |
| } |
| |
| public void characters(char[] ch, int start, int length) |
| throws SAXException { |
| |
| super.characters(ch, start, length); |
| |
| try { |
| |
| if (!isCDATA) { |
| |
| eventFactory.setLocation(getCurrentLocation()); |
| writer.add(eventFactory.createCharacters(new String(ch, |
| start, length))); |
| |
| } |
| |
| } catch (XMLStreamException e) { |
| |
| throw new SAXException(e); |
| |
| } |
| |
| } |
| |
| public void ignorableWhitespace(char[] ch, int start, int length) |
| throws SAXException { |
| |
| super.ignorableWhitespace(ch, start, length); |
| characters(ch, start, length); |
| |
| } |
| |
| public void processingInstruction(String target, String data) |
| throws SAXException { |
| |
| if (needToCallStartDocument) { |
| // Drat. We were trying to postpone this until the first element so that we could get |
| // the locator, but we can't output a PI before the start document, so we're just |
| // going to have to do without the locator if it hasn't been set yet. |
| writeStartDocument(); |
| } |
| |
| super.processingInstruction(target, data); |
| try { |
| |
| writer.add(eventFactory.createProcessingInstruction(target, data)); |
| |
| } catch (XMLStreamException e) { |
| |
| throw new SAXException(e); |
| |
| } |
| |
| } |
| |
| public void endCDATA() throws SAXException { |
| |
| eventFactory.setLocation(getCurrentLocation()); |
| try { |
| |
| writer.add(eventFactory.createCData(CDATABuffer.toString())); |
| |
| } catch (XMLStreamException e) { |
| |
| throw new SAXException(e); |
| |
| } |
| |
| super.endCDATA(); |
| |
| } |
| |
| |
| protected void createStartEvents(Attributes attributes, Collection[] events) { |
| |
| Map nsMap = null; |
| List attrs = null; |
| |
| // create namespaces |
| if (namespaces != null) { |
| final int nDecls = namespaces.size(); |
| for (int i = 0; i < nDecls; i++) { |
| final String prefix = (String) namespaces.elementAt(i++); |
| String uri = (String) namespaces.elementAt(i); |
| Namespace ns = createNamespace(prefix, uri); |
| if (nsMap == null) { |
| nsMap = new HashMap(); |
| } |
| nsMap.put(prefix, ns); |
| } |
| } |
| |
| // create attributes |
| String[] qname = {null, null}; |
| for (int i = 0, s = attributes.getLength(); i < s; i++) { |
| |
| parseQName(attributes.getQName(i), qname); |
| |
| String attrPrefix = qname[0]; |
| String attrLocal = qname[1]; |
| |
| String attrQName = attributes.getQName(i); |
| String attrValue = attributes.getValue(i); |
| String attrURI = attributes.getURI(i); |
| |
| if ("xmlns".equals(attrQName) || "xmlns".equals(attrPrefix)) { |
| // namespace declaration disguised as an attribute. If the |
| // namespace has already been declared, skip it, otherwise |
| // write it as an namespace |
| if (nsMap == null) { |
| nsMap = new HashMap(); |
| } |
| |
| if (!nsMap.containsKey(attrLocal)) { |
| Namespace ns = createNamespace(attrLocal, attrValue); |
| nsMap.put(attrLocal, ns); |
| } |
| |
| } else { |
| |
| Attribute attribute; |
| if (attrPrefix.length() > 0) { |
| |
| attribute = eventFactory.createAttribute(attrPrefix, |
| attrURI, attrLocal, attrValue); |
| |
| } else { |
| |
| attribute = eventFactory.createAttribute(attrLocal, |
| attrValue); |
| |
| } |
| |
| if (attrs == null) { |
| |
| attrs = new ArrayList(); |
| |
| } |
| attrs.add(attribute); |
| |
| } |
| } |
| |
| events[0] = (nsMap == null ? Collections.EMPTY_LIST : nsMap.values()); |
| events[1] = (attrs == null ? Collections.EMPTY_LIST : attrs); |
| |
| } |
| |
| protected Namespace createNamespace(String prefix, String uri) { |
| |
| if (prefix == null || prefix.length() == 0) { |
| |
| return eventFactory.createNamespace(uri); |
| |
| } else { |
| |
| return eventFactory.createNamespace(prefix, uri); |
| |
| } |
| |
| } |
| |
| } |
