/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2002-2008, Open Source Geospatial Foundation (OSGeo)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*/
package org.geotools.xml.impl;
import org.eclipse.xsd.XSDAttributeDeclaration;
import org.w3c.dom.Attr;
import org.w3c.dom.Document;
import java.util.logging.Logger;
import org.geotools.util.Converters;
import org.geotools.xml.Binding;
import org.geotools.xml.SimpleBinding;
/**
*
*
* @source $URL$
*/
public class AttributeEncodeExecutor implements BindingWalker.Visitor {
/** the object being encoded **/
Object object;
/** the attribute being encoded **/
XSDAttributeDeclaration attribute;
/** the encoded value **/
Attr encoding;
/** the document / factory **/
Document document;
/** logger */
Logger logger;
public AttributeEncodeExecutor(Object object, XSDAttributeDeclaration attribute,
Document document, Logger logger) {
this.object = object;
this.attribute = attribute;
this.document = document;
this.logger = logger;
encoding = document.createAttributeNS(attribute.getTargetNamespace(), attribute.getName());
}
public Attr getEncodedAttribute() {
return encoding;
}
public void visit(Binding binding) {
//ensure the object type matches the type declared on the bindign
if (binding.getType() == null) {
logger.warning("Binding: " + binding.getTarget() + " does not declare a target type");
return;
}
if (!binding.getType().isAssignableFrom(object.getClass())) {
//try to convert
Object converted = Converters.convert(object, binding.getType());
if (converted != null) {
object = converted;
} else {
logger.warning(object + "[ " + object.getClass() + " ] is not of type "
+ binding.getType());
return;
}
}
if (binding instanceof SimpleBinding) {
SimpleBinding simple = (SimpleBinding) binding;
try {
encoding.setValue(simple.encode(object, encoding.getValue()));
} catch (Throwable t) {
String msg = "Encode failed for " + attribute.getName() + ". Cause: "
+ t.getLocalizedMessage();
throw new RuntimeException(msg, t);
}
}
}
}