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/*
* $Id: EventAllocator.java,v 1.1 2004/07/05 23:10:00 cniles Exp $
*
* Copyright (c) 2004, Christian Niles, unit12.net
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * 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.
*
* * Neither the name of Christian Niles, Unit12, nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS 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 THE COPYRIGHT OWNER OR 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.
*
*/
package javanet.staxutils.events;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import javax.xml.namespace.NamespaceContext;
import javax.xml.namespace.QName;
import javax.xml.stream.Location;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.events.Attribute;
import javax.xml.stream.events.Characters;
import javax.xml.stream.events.Comment;
import javax.xml.stream.events.DTD;
import javax.xml.stream.events.EndDocument;
import javax.xml.stream.events.EndElement;
import javax.xml.stream.events.EntityDeclaration;
import javax.xml.stream.events.EntityReference;
import javax.xml.stream.events.Namespace;
import javax.xml.stream.events.ProcessingInstruction;
import javax.xml.stream.events.StartDocument;
import javax.xml.stream.events.StartElement;
import javax.xml.stream.util.XMLEventAllocator;
/**
* Allocates events within this package.
*
* @author Christian Niles
* @version $Revision: 1.1 $
*/
public class EventAllocator extends BaseXMLEventAllocator {
public XMLEventAllocator newInstance() {
return new EventAllocator();
}
public StartElement allocateStartElement(XMLStreamReader reader) throws XMLStreamException {
Location location = createStableLocation(reader);
QName name = reader.getName();
List attributes = allocateAttributes(location, reader);
List namespaces = allocateNamespaces(location, reader);
NamespaceContext nsCtx = createStableNamespaceContext(reader);
QName schemaType = determineSchemaType(reader);
return new StartElementEvent(name, attributes.iterator(), namespaces.iterator(), nsCtx,
location, schemaType);
}
public EndElement allocateEndElement(XMLStreamReader reader) throws XMLStreamException {
Location location = createStableLocation(reader);
QName name = reader.getName();
List namespaces = allocateNamespaces(location, reader);
QName schemaType = determineSchemaType(reader);
return new EndElementEvent(name, namespaces.iterator(), location, schemaType);
}
public List allocateAttributes(Location location, XMLStreamReader reader)
throws XMLStreamException {
List attributes = null;
for (int i = 0, s = reader.getAttributeCount(); i < s; i++) {
QName name = reader.getAttributeName(i);
String value = reader.getAttributeValue(i);
String dtdType = reader.getAttributeType(i);
boolean specified = reader.isAttributeSpecified(i);
QName schemaType = determineAttributeSchemaType(reader, i);
Attribute attr = new AttributeEvent(name, value, specified, dtdType, location, schemaType);
if (attributes == null) {
attributes = new ArrayList();
}
attributes.add(attr);
}
return (attributes != null) ? attributes : Collections.EMPTY_LIST;
}
public List allocateNamespaces(Location location, XMLStreamReader reader)
throws XMLStreamException {
List namespaces = null;
for (int i = 0, s = reader.getNamespaceCount(); i < s; i++) {
String prefix = reader.getNamespacePrefix(i);
String nsURI = reader.getNamespaceURI(i);
Namespace ns = new NamespaceEvent(prefix, nsURI, location);
if (namespaces == null) {
namespaces = new ArrayList();
}
namespaces.add(ns);
}
return (namespaces != null) ? namespaces : Collections.EMPTY_LIST;
}
public Characters allocateCData(XMLStreamReader reader) throws XMLStreamException {
Location location = createStableLocation(reader);
String text = reader.getText();
QName schemaType = determineSchemaType(reader);
return new CDataEvent(text, location, schemaType);
}
public Characters allocateCharacters(XMLStreamReader reader) throws XMLStreamException {
Location location = createStableLocation(reader);
String text = reader.getText();
QName schemaType = determineSchemaType(reader);
return new CharactersEvent(text, location, schemaType);
}
public Characters allocateIgnorableSpace(XMLStreamReader reader) throws XMLStreamException {
Location location = createStableLocation(reader);
String text = reader.getText();
QName schemaType = determineSchemaType(reader);
return new IgnorableSpaceEvent(text, location, schemaType);
}
public Comment allocateComment(XMLStreamReader reader) throws XMLStreamException {
Location location = createStableLocation(reader);
String text = reader.getText();
return new CommentEvent(text, location);
}
public DTD allocateDTD(XMLStreamReader reader) throws XMLStreamException {
Location location = createStableLocation(reader);
List entities = (List) reader.getProperty("javax.xml.stream.entities");
List notations = (List) reader.getProperty("javax.xml.stream.notations");
String text = reader.getText();
return new DTDEvent(text, entities, notations, location);
}
public StartDocument allocateStartDocument(XMLStreamReader reader) throws XMLStreamException {
Location location = createStableLocation(reader);
String encoding = reader.getCharacterEncodingScheme();
String version = reader.getVersion();
Boolean standalone = reader.standaloneSet() ? Boolean.valueOf(reader.isStandalone()) : null;
QName schemaType = determineSchemaType(reader);
return new StartDocumentEvent(encoding, standalone, version, location, schemaType);
}
public EndDocument allocateEndDocument(XMLStreamReader reader) throws XMLStreamException {
Location location = createStableLocation(reader);
QName schemaType = determineSchemaType(reader);
return new EndDocumentEvent(location, schemaType);
}
public EntityReference allocateEntityReference(XMLStreamReader reader) throws XMLStreamException {
Location location = createStableLocation(reader);
String name = reader.getLocalName();
EntityDeclaration decl = determineEntityDeclaration(name, reader);
return new EntityReferenceEvent(name, decl, location);
}
public ProcessingInstruction allocateProcessingInstruction(XMLStreamReader reader)
throws XMLStreamException {
Location location = createStableLocation(reader);
String target = reader.getPITarget();
String data = reader.getPIData();
return new ProcessingInstructionEvent(target, data, location);
}
public QName determineSchemaType(XMLStreamReader reader) {
// TODO look for xsi:type?
return null;
}
public QName determineAttributeSchemaType(XMLStreamReader reader, int index) {
return null;
}
public EntityDeclaration determineEntityDeclaration(String name, XMLStreamReader reader) {
return new EntityDeclarationEvent(name, reader.getText(), null);
}
public Location createStableLocation(XMLStreamReader reader) {
// FIXME assume location is already stable?
return reader.getLocation();
}
public NamespaceContext createStableNamespaceContext(XMLStreamReader reader) {
// FIXME assume context is already stable
return reader.getNamespaceContext();
}
}
