/*
* 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.QName;
import org.dom4j.tree.AbstractAttribute;
import org.relaxng.datatype.DatatypeException;
import org.relaxng.datatype.ValidationContext;
/**
* <p>
* <code>DatatypeAttribute</code> represents an Attribute which supports the
* <a href="http://www.w3.org/TR/xmlschema-2/">XML Schema Data Types </a>
* specification.
* </p>
*
* @author <a href="mailto:jstrachan@apache.org">James Strachan </a>
* @version $Revision: 1.9 $
*/
public class DatatypeAttribute extends AbstractAttribute implements
SerializationContext, ValidationContext {
/**
* The parent <code>Element</code> of the <code>Attribute</code>
*/
private Element parent;
/**
* The <code>QName</code> for this element
*/
private QName qname;
/**
* The <code>XSDatatype</code> of the <code>Attribute</code>
*/
private XSDatatype datatype;
/**
* The data (Object) value of the <code>Attribute</code>
*/
private Object data;
/**
* The text value of the <code>Attribute</code>
*/
private String text;
public DatatypeAttribute(QName qname, XSDatatype datatype) {
this.qname = qname;
this.datatype = datatype;
}
public DatatypeAttribute(QName qname, XSDatatype datatype, String text) {
this.qname = qname;
this.datatype = datatype;
this.text = text;
this.data = convertToValue(text);
}
public String toString() {
return getClass().getName() + hashCode() + " [Attribute: name "
+ getQualifiedName() + " value \"" + getValue() + "\" data: "
+ getData() + "]";
}
/**
* Returns the MSV XSDatatype for this node
*
* @return DOCUMENT ME!
*/
public XSDatatype getXSDatatype() {
return datatype;
}
// SerializationContext interface
// -------------------------------------------------------------------------
public String getNamespacePrefix(String uri) {
Element parentElement = getParent();
if (parentElement != null) {
Namespace namespace = parentElement.getNamespaceForURI(uri);
if (namespace != null) {
return namespace.getPrefix();
}
}
return 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) {
// first lets see if this is our attribute's prefix
if (prefix.equals(getNamespacePrefix())) {
return getNamespaceURI();
} else {
Element parentElement = getParent();
if (parentElement != null) {
Namespace namespace = parentElement
.getNamespaceForPrefix(prefix);
if (namespace != null) {
return namespace.getURI();
}
}
}
return null;
}
// Attribute interface
// -------------------------------------------------------------------------
public QName getQName() {
return qname;
}
public String getValue() {
return text;
}
public void setValue(String value) {
validate(value);
this.text = value;
this.data = convertToValue(value);
}
public Object getData() {
return data;
}
public void setData(Object data) {
String s = datatype.convertToLexicalValue(data, this);
validate(s);
this.text = s;
this.data = data;
}
public Element getParent() {
return parent;
}
public void setParent(Element parent) {
this.parent = parent;
}
public boolean supportsParent() {
return true;
}
public boolean isReadOnly() {
return false;
}
// Implementation methods
// -------------------------------------------------------------------------
protected void validate(String txt) throws IllegalArgumentException {
try {
datatype.checkValid(txt, this);
} catch (DatatypeException e) {
throw new IllegalArgumentException(e.getMessage());
}
}
protected Object convertToValue(String txt) {
if (datatype instanceof DatabindableDatatype) {
DatabindableDatatype bindable = (DatabindableDatatype) datatype;
return bindable.createJavaObject(txt, this);
} else {
return datatype.createValue(txt, this);
}
}
}
/*
* 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 dom4j-info@metastuff.com.
*
* 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://dom4j.sourceforge.net
*
* 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.
*/