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flexible XML framework for Java
/*
* Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
*
* This software is open source.
* See the bottom of this file for the licence.
*/
package org.dom4j.datatype;
import com.sun.msv.datatype.DatabindableDatatype;
import com.sun.msv.datatype.SerializationContext;
import com.sun.msv.datatype.xsd.XSDatatype;
import org.dom4j.Element;
import org.dom4j.Namespace;
import org.dom4j.Node;
import org.dom4j.QName;
import org.dom4j.tree.DefaultElement;
import org.relaxng.datatype.DatatypeException;
import org.relaxng.datatype.ValidationContext;
/**
*
* DatatypeElement represents an Element which supports the XML Schema Data Types
* specification.
*
*
* @author James Strachan
* @version $Revision: 1.9 $
*/
public class DatatypeElement extends DefaultElement implements
SerializationContext, ValidationContext {
/** The XSDatatype of the Attribute */
private XSDatatype datatype;
/** The data (Object) value of the Attribute */
private Object data;
public DatatypeElement(QName qname, XSDatatype datatype) {
super(qname);
this.datatype = datatype;
}
public DatatypeElement(QName qname, int attributeCount, XSDatatype type) {
super(qname, attributeCount);
this.datatype = type;
}
public String toString() {
return getClass().getName() + hashCode() + " [Element: <"
+ getQualifiedName() + " attributes: " + attributeList()
+ " data: " + getData() + " />]";
}
/**
* Returns the MSV XSDatatype for this node
*
* @return DOCUMENT ME!
*/
public XSDatatype getXSDatatype() {
return datatype;
}
// SerializationContext interface
// -------------------------------------------------------------------------
public String getNamespacePrefix(String uri) {
Namespace namespace = getNamespaceForURI(uri);
return (namespace != null) ? namespace.getPrefix() : null;
}
// ValidationContext interface
// -------------------------------------------------------------------------
public String getBaseUri() {
// XXXX: could we use a Document for this?
return null;
}
public boolean isNotation(String notationName) {
// XXXX: no way to do this yet in dom4j so assume false
return false;
}
public boolean isUnparsedEntity(String entityName) {
// XXXX: no way to do this yet in dom4j so assume valid
return true;
}
public String resolveNamespacePrefix(String prefix) {
Namespace namespace = getNamespaceForPrefix(prefix);
if (namespace != null) {
return namespace.getURI();
}
return null;
}
// Element interface
// -------------------------------------------------------------------------
public Object getData() {
if (data == null) {
String text = getTextTrim();
if ((text != null) && (text.length() > 0)) {
if (datatype instanceof DatabindableDatatype) {
DatabindableDatatype bind = (DatabindableDatatype) datatype;
data = bind.createJavaObject(text, this);
} else {
data = datatype.createValue(text, this);
}
}
}
return data;
}
public void setData(Object data) {
String s = datatype.convertToLexicalValue(data, this);
validate(s);
this.data = data;
setText(s);
}
public Element addText(String text) {
validate(text);
return super.addText(text);
}
public void setText(String text) {
validate(text);
super.setText(text);
}
// Implementation methods
// -------------------------------------------------------------------------
/**
* Override to force lazy recreation of data object
*
* @param node
* DOCUMENT ME!
*/
protected void childAdded(Node node) {
data = null;
super.childAdded(node);
}
/**
* Override to force lazy recreation of data object
*
* @param node
* DOCUMENT ME!
*/
protected void childRemoved(Node node) {
data = null;
super.childRemoved(node);
}
protected void validate(String text) throws IllegalArgumentException {
try {
datatype.checkValid(text, this);
} catch (DatatypeException e) {
throw new IllegalArgumentException(e.getMessage());
}
}
}
/*
* Redistribution and use of this software and associated documentation
* ("Software"), with or without modification, are permitted provided that the
* following conditions are met:
*
* 1. Redistributions of source code must retain copyright statements and
* notices. Redistributions must also contain a copy of this document.
*
* 2. 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.
*
* 3. The name "DOM4J" must not be used to endorse or promote products derived
* from this Software without prior written permission of MetaStuff, Ltd. For
* written permission, please contact [email protected].
*
* 4. Products derived from this Software may not be called "DOM4J" nor may
* "DOM4J" appear in their names without prior written permission of MetaStuff,
* Ltd. DOM4J is a registered trademark of MetaStuff, Ltd.
*
* 5. Due credit should be given to the DOM4J Project - http://www.dom4j.org
*
* THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESSED 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 METASTUFF, LTD. OR ITS 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.
*
* Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
*/