| /* |
| * Copyright (c) 2004, 2012, 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. |
| * |
| * THIS FILE WAS MODIFIED BY SUN MICROSYSTEMS, INC. |
| */ |
| |
| package com.sun.xml.internal.fastinfoset.stax.events; |
| |
| import javax.xml.stream.XMLEventFactory; |
| import javax.xml.stream.XMLStreamException; |
| import javax.xml.stream.XMLStreamReader; |
| import javax.xml.stream.events.Namespace; |
| import javax.xml.stream.events.XMLEvent; |
| import javax.xml.stream.util.XMLEventAllocator; |
| import javax.xml.stream.util.XMLEventConsumer; |
| |
| import com.sun.xml.internal.fastinfoset.CommonResourceBundle; |
| |
| /** |
| * allows a user to register a way to allocate events given an XMLStreamReader. |
| * The XMLEventAllocator can be set on an XMLInputFactory |
| * using the property "javax.xml.stream.allocator" |
| * |
| * This base class uses EventFactory to create events as recommended in the JavaDoc of XMLEventAllocator. |
| * However, creating new object per each event reduces performance. The implementation of |
| * EventReader therefore will set the Allocator to StAXEventAllocator which implements the |
| * Allocate methods without creating new objects. |
| * |
| * The spec for the first Allocate method states that it must NOT modify the state of the Reader |
| * while the second MAY. For consistency, both Allocate methods in this implementation will |
| * NOT modify the state. |
| * |
| */ |
| public class StAXEventAllocatorBase implements XMLEventAllocator { |
| XMLEventFactory factory; |
| |
| /** Creates a new instance of XMLEventAllocator */ |
| public StAXEventAllocatorBase() { |
| if (System.getProperty("javax.xml.stream.XMLEventFactory")==null) { |
| System.setProperty("javax.xml.stream.XMLEventFactory", |
| "com.sun.xml.internal.fastinfoset.stax.factory.StAXEventFactory"); |
| } |
| factory = XMLEventFactory.newInstance(); |
| } |
| |
| // ---------------------methods defined by XMLEventAllocator-----------------// |
| |
| /** |
| * This method creates an instance of the XMLEventAllocator. This |
| * allows the XMLInputFactory to allocate a new instance per reader. |
| */ |
| public XMLEventAllocator newInstance() { |
| return new StAXEventAllocatorBase(); |
| } |
| |
| /** |
| * This method allocates an event given the current state of the XMLStreamReader. |
| * If this XMLEventAllocator does not have a one-to-one mapping between reader state |
| * and events this method will return null. |
| * @param streamReader The XMLStreamReader to allocate from |
| * @return the event corresponding to the current reader state |
| */ |
| public XMLEvent allocate(XMLStreamReader streamReader) throws XMLStreamException { |
| if(streamReader == null ) |
| throw new XMLStreamException(CommonResourceBundle.getInstance().getString("message.nullReader")); |
| return getXMLEvent(streamReader); |
| } |
| |
| /** |
| * This method allocates an event or set of events given the current state of |
| * the XMLStreamReader and adds the event or set of events to the consumer that |
| * was passed in. |
| * @param streamReader The XMLStreamReader to allocate from |
| * @param consumer The XMLEventConsumer to add to. |
| */ |
| public void allocate(XMLStreamReader streamReader, XMLEventConsumer consumer) throws XMLStreamException { |
| consumer.add(getXMLEvent(streamReader)); |
| |
| } |
| // ---------------------end of methods defined by XMLEventAllocator-----------------// |
| |
| |
| XMLEvent getXMLEvent(XMLStreamReader reader){ |
| XMLEvent event = null; |
| //returns the current event |
| int eventType = reader.getEventType(); |
| //this needs to be set before creating events |
| factory.setLocation(reader.getLocation()); |
| switch(eventType){ |
| |
| case XMLEvent.START_ELEMENT: |
| { |
| StartElementEvent startElement = (StartElementEvent)factory.createStartElement(reader.getPrefix(), |
| reader.getNamespaceURI(), reader.getLocalName()); |
| |
| addAttributes(startElement,reader); |
| addNamespaces(startElement, reader); |
| //need to fix it along with the Reader |
| //setNamespaceContext(startElement,reader); |
| event = startElement; |
| break; |
| } |
| case XMLEvent.END_ELEMENT: |
| { |
| EndElementEvent endElement = (EndElementEvent)factory.createEndElement( |
| reader.getPrefix(), reader.getNamespaceURI(), reader.getLocalName()); |
| addNamespaces(endElement,reader); |
| event = endElement ; |
| break; |
| } |
| case XMLEvent.PROCESSING_INSTRUCTION: |
| { |
| event = factory.createProcessingInstruction(reader.getPITarget(),reader.getPIData()); |
| break; |
| } |
| case XMLEvent.CHARACTERS: |
| { |
| if (reader.isWhiteSpace()) |
| event = factory.createSpace(reader.getText()); |
| else |
| event = factory.createCharacters(reader.getText()); |
| |
| break; |
| } |
| case XMLEvent.COMMENT: |
| { |
| event = factory.createComment(reader.getText()); |
| break; |
| } |
| case XMLEvent.START_DOCUMENT: |
| { |
| StartDocumentEvent docEvent = (StartDocumentEvent)factory.createStartDocument( |
| reader.getVersion(), reader.getEncoding(), reader.isStandalone()); |
| if(reader.getCharacterEncodingScheme() != null){ |
| docEvent.setDeclaredEncoding(true); |
| }else{ |
| docEvent.setDeclaredEncoding(false); |
| } |
| event = docEvent ; |
| break; |
| } |
| case XMLEvent.END_DOCUMENT:{ |
| EndDocumentEvent endDocumentEvent = new EndDocumentEvent() ; |
| event = endDocumentEvent ; |
| break; |
| } |
| case XMLEvent.ENTITY_REFERENCE:{ |
| event = factory.createEntityReference(reader.getLocalName(), |
| new EntityDeclarationImpl(reader.getLocalName(),reader.getText())); |
| break; |
| |
| } |
| case XMLEvent.ATTRIBUTE:{ |
| event = null ; |
| break; |
| } |
| case XMLEvent.DTD:{ |
| event = factory.createDTD(reader.getText()); |
| break; |
| } |
| case XMLEvent.CDATA:{ |
| event = factory.createCData(reader.getText()); |
| break; |
| } |
| case XMLEvent.SPACE:{ |
| event = factory.createSpace(reader.getText()); |
| break; |
| } |
| } |
| return event ; |
| } |
| |
| //use event.addAttribute instead of addAttributes to avoid creating another list |
| protected void addAttributes(StartElementEvent event,XMLStreamReader streamReader){ |
| AttributeBase attr = null; |
| for(int i=0; i<streamReader.getAttributeCount() ;i++){ |
| attr = (AttributeBase)factory.createAttribute(streamReader.getAttributeName(i), |
| streamReader.getAttributeValue(i)); |
| attr.setAttributeType(streamReader.getAttributeType(i)); |
| attr.setSpecified(streamReader.isAttributeSpecified(i)); |
| event.addAttribute(attr); |
| } |
| } |
| |
| //add namespaces to StartElement/EndElement |
| protected void addNamespaces(StartElementEvent event,XMLStreamReader streamReader){ |
| Namespace namespace = null; |
| for(int i=0; i<streamReader.getNamespaceCount(); i++){ |
| namespace = factory.createNamespace(streamReader.getNamespacePrefix(i), |
| streamReader.getNamespaceURI(i)); |
| event.addNamespace(namespace); |
| } |
| } |
| protected void addNamespaces(EndElementEvent event,XMLStreamReader streamReader){ |
| Namespace namespace = null; |
| for(int i=0; i<streamReader.getNamespaceCount(); i++){ |
| namespace = factory.createNamespace(streamReader.getNamespacePrefix(i), |
| streamReader.getNamespaceURI(i)); |
| event.addNamespace(namespace); |
| } |
| } |
| |
| |
| } |