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/*
* $Id: AbstractXMLEvent.java,v 1.3 2004/07/15 02:11:02 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.io.IOException;
import java.io.Serializable;
import java.io.StringWriter;
import java.io.Writer;
import javanet.staxutils.helpers.EventMatcher;
import javanet.staxutils.helpers.UnknownLocation;
import javanet.staxutils.io.XMLWriterUtils;
import javax.xml.namespace.QName;
import javax.xml.stream.Location;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamWriter;
import javax.xml.stream.events.Characters;
import javax.xml.stream.events.EndElement;
import javax.xml.stream.events.StartElement;
import javax.xml.stream.events.XMLEvent;
/**
* Abstract base class for {@link XMLEvent} implementations.
*
* @author Christian Niles
* @version $Revision: 1.3 $
*/
public abstract class AbstractXMLEvent
implements
ExtendedXMLEvent,
Serializable,
Cloneable {
/** The event location. */
protected Location location;
/** The schema type. */
protected QName schemaType;
public AbstractXMLEvent() {
}
public AbstractXMLEvent(Location location) {
this.location = location;
}
public AbstractXMLEvent(Location location, QName schemaType) {
this.location = location;
this.schemaType = schemaType;
}
public AbstractXMLEvent(XMLEvent that) {
this.location = that.getLocation();
this.schemaType = that.getSchemaType();
}
public Location getLocation() {
return (location == null ? UnknownLocation.INSTANCE : location);
}
public QName getSchemaType() {
return schemaType;
}
public Characters asCharacters() {
return (Characters) this;
}
public EndElement asEndElement() {
return (EndElement) this;
}
public StartElement asStartElement() {
return (StartElement) this;
}
public boolean isAttribute() {
return getEventType() == ATTRIBUTE;
}
public boolean isCharacters() {
switch (getEventType()) {
case CHARACTERS :
case SPACE :
case CDATA :
return true;
default :
return false;
}
}
public boolean isEndDocument() {
return getEventType() == END_DOCUMENT;
}
public boolean isEndElement() {
return getEventType() == END_ELEMENT;
}
public boolean isEntityReference() {
return getEventType() == ENTITY_REFERENCE;
}
public boolean isNamespace() {
return getEventType() == NAMESPACE;
}
public boolean isProcessingInstruction() {
return getEventType() == PROCESSING_INSTRUCTION;
}
public boolean isStartDocument() {
return getEventType() == START_DOCUMENT;
}
public boolean isStartElement() {
return getEventType() == START_ELEMENT;
}
public Object clone() {
try {
return super.clone();
} catch (CloneNotSupportedException e) {
// should never happen since we implement Cloneable
throw new RuntimeException("Unexpected exception cloning XMLEvent",
e);
}
}
public boolean matches(XMLEvent event) {
return EventMatcher.eventsMatch(this, event);
}
public void writeEvent(XMLStreamWriter writer) throws XMLStreamException {
XMLWriterUtils.writeEvent(this, writer);
}
public void writeAsEncodedUnicode(Writer writer) throws XMLStreamException {
try {
XMLWriterUtils.writeEvent(this, writer);
} catch (IOException e) {
throw new XMLStreamException(e);
}
}
public String toString() {
StringWriter writer = new StringWriter();
try {
this.writeAsEncodedUnicode(writer);
} catch (XMLStreamException e) {
// shouldn't happen?
}
return writer.toString();
}
}
