/**
* 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 "Exolab" must not be used to endorse or promote
* products derived from this Software without prior written
* permission of Intalio, Inc. For written permission,
* please contact info@exolab.org.
*
* 4. Products derived from this Software may not be called "Exolab"
* nor may "Exolab" appear in their names without prior written
* permission of Intalio, Inc. Exolab is a registered
* trademark of Intalio, Inc.
*
* 5. Due credit should be given to the Exolab Project
* (http://www.exolab.org/).
*
* THIS SOFTWARE IS PROVIDED BY INTALIO, INC. 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
* INTALIO, INC. 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 1999-2003 (C) Intalio, Inc. All Rights Reserved.
*
* $Id: AttributeUnmarshaller.java 7410 2008-01-30 23:27:39Z wguttmn $
*/
package org.exolab.castor.xml.schema.reader;
import org.exolab.castor.xml.AttributeSet;
import org.exolab.castor.xml.Namespaces;
import org.exolab.castor.xml.XMLException;
import org.exolab.castor.xml.schema.Annotation;
import org.exolab.castor.xml.schema.AttributeDecl;
import org.exolab.castor.xml.schema.Form;
import org.exolab.castor.xml.schema.SchemaContext;
import org.exolab.castor.xml.schema.Schema;
import org.exolab.castor.xml.schema.SchemaNames;
import org.exolab.castor.xml.schema.SimpleType;
/**
* The Unmarshaller for Attribute declarations
*
* @author <a href="mailto:kvisco@intalio.com">Keith Visco</a>
* @version $Revision: 7410 $ $Date: 2006-04-25 15:08:23 -0600 (Tue, 25 Apr 2006) $
**/
public class AttributeUnmarshaller extends ComponentReader {
//--------------------/
//- Member Variables -/
//--------------------/
/**
* The current ComponentReader
**/
private ComponentReader unmarshaller;
/**
* The current branch depth
**/
private int depth = 0;
/**
* The Attribute reference for the Attribute we are constructing
**/
private AttributeDecl _attribute = null;
private Schema _schema = null;
private boolean foundAnnotation = false;
private boolean foundSimpleType = false;
//----------------/
//- Constructors -/
//----------------/
public AttributeUnmarshaller(
final SchemaContext schemaContext,
final Schema schema,
final AttributeSet atts)
{
super(schemaContext);
this._schema = schema;
_attribute = new AttributeDecl(schema);
//--@ref
String attValue = atts.getValue(SchemaNames.REF_ATTR);
if (attValue != null) {
_attribute.setReference(attValue);
}
//-- @name
attValue = atts.getValue(SchemaNames.NAME_ATTR);
if (attValue != null) {
if (_attribute.isReference()) {
String err = "An attribute cannot have a 'name' attribute and a 'ref' attribute at the same time.";
throw new IllegalStateException(err);
}
_attribute.setName(attValue);
}
//-- @default
attValue = atts.getValue(SchemaNames.DEFAULT_ATTR);
if (attValue != null) {
_attribute.setDefaultValue(attValue);
}
//-- @id
_attribute.setId(atts.getValue(SchemaNames.ID_ATTR));
//-- @fixed
attValue = atts.getValue(SchemaNames.FIXED_ATTR);
if (attValue != null) {
_attribute.setFixedValue(attValue);
}
//-- @form
attValue = atts.getValue(SchemaNames.FORM);
if (attValue != null) {
if (_attribute.isReference()) {
String err = "An attribute reference cannot have a 'form' attribute.";
throw new IllegalArgumentException(err);
}
_attribute.setForm(Form.valueOf(attValue));
}
//-- @type
attValue = atts.getValue(SchemaNames.TYPE_ATTR);
if (attValue != null) {
if (_attribute.isReference()) {
String err = "An attribute reference cannot have a 'type' attribute.";
throw new IllegalArgumentException(err);
}
_attribute.setSimpleTypeReference(attValue);
}
//-- @use
attValue = atts.getValue(SchemaNames.USE_ATTR);
if (attValue != null) {
if (_attribute.isDefault() && (!attValue.equals(AttributeDecl.USE_OPTIONAL)) )
throw new IllegalArgumentException("When 'default' is present, the 'use' attribute must have the value 'optional'.");
_attribute.setUse(attValue);
}
} //-- AttributeUnmarshaller
//-----------/
//- Methods -/
//-----------/
/**
* Returns the name of the element that this ComponentReader
* handles
* @return the name of the element that this ComponentReader
* handles
**/
public String elementName() {
return SchemaNames.ATTRIBUTE;
} //-- elementName
/**
*
**/
public AttributeDecl getAttribute() {
return _attribute;
} //-- getAttribute
/**
* Returns the Object created by this ComponentReader
* @return the Object created by this ComponentReader
**/
public Object getObject() {
return getAttribute();
} //-- getObject
/**
* Signals the start of an element with the given name.
*
* @param name the NCName of the element. It is an error
* if the name is a QName (ie. contains a prefix).
* @param namespace the namespace of the element. This may be null.
* Note: A null namespace is not the same as the default namespace unless
* the default namespace is also null.
* @param atts the AttributeSet containing the attributes associated
* with the element.
* @param nsDecls the namespace declarations being declared for this
* element. This may be null.
**/
public void startElement(String name, String namespace, AttributeSet atts,
Namespaces nsDecls)
throws XMLException
{
//-- Do delagation if necessary
if (unmarshaller != null) {
unmarshaller.startElement(name, namespace, atts, nsDecls);
++depth;
return;
}
if (SchemaNames.ANNOTATION.equals(name)) {
if (foundAnnotation)
error("Only one (1) annotation is allowed as a child of " +
"an attribute declaration.");
if (foundSimpleType)
error("An annotation may only appear as the first child of "+
"an attribute declaration.");
foundAnnotation = true;
unmarshaller = new AnnotationUnmarshaller(getSchemaContext(), atts);
}
else if (SchemaNames.SIMPLE_TYPE.equals(name)) {
if (foundSimpleType)
error("Only one (1) simpleType is allowed as a child of " +
"an attribute declaration.");
foundSimpleType = true;
unmarshaller = new SimpleTypeUnmarshaller(getSchemaContext(), _schema, atts);
}
else {
illegalElement(name);
}
} //-- startElement
/**
* Signals to end of the element with the given name.
*
* @param name the NCName of the element. It is an error
* if the name is a QName (ie. contains a prefix).
* @param namespace the namespace of the element.
**/
public void endElement(String name, String namespace)
throws XMLException
{
//-- Do delagation if necessary
if ((unmarshaller != null) && (depth > 0)) {
unmarshaller.endElement(name, namespace);
--depth;
return;
}
//-- call unmarshaller finish to perform any necessary cleanup
unmarshaller.finish();
if (SchemaNames.ANNOTATION.equals(name)) {
Annotation ann = (Annotation) unmarshaller.getObject();
_attribute.addAnnotation(ann);
}
else if (SchemaNames.SIMPLE_TYPE.equals(name)) {
SimpleType simpleType =
((SimpleTypeUnmarshaller)unmarshaller).getSimpleType();
_attribute.setSimpleType(simpleType);
}
unmarshaller = null;
} //-- endElement
public void characters(char[] ch, int start, int length)
throws XMLException
{
//-- Do delagation if necessary
if (unmarshaller != null) {
unmarshaller.characters(ch, start, length);
}
} //-- characters
} //-- AttributeUnmarshaller