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/*
* Fabric3
* Copyright (c) 2009-2015 Metaform Systems
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.fabric3.databinding.jaxb.mapper;
import javax.xml.bind.annotation.XmlType;
import javax.xml.namespace.QName;
/**
*
*/
public class JAXBQNameMapperImpl implements JAXBQNameMapper {
public QName deriveQName(Class> type) {
QName name;
XmlType xmlType = type.getAnnotation(XmlType.class);
if (xmlType != null) {
String namespace = xmlType.namespace();
if ("##default".equals(namespace)) {
namespace = deriveNamespace(type);
}
String localName = xmlType.name();
if ("##default".equals(localName)) {
localName = deriveLocalName(type);
}
name = new QName(namespace, localName);
} else {
String namespace = deriveNamespace(type);
String localName = deriveLocalName(type);
name = new QName(namespace, localName);
}
return name;
}
/**
* Derives an XML namespace from a Java package according to JAXB rules. For example, org.foo is rendered as http://foo.org/.
*
*
* TODO this is duplicated in the Metro extension
*
* @param type the Java type
* @return the XML namespace
*/
String deriveNamespace(Class> type) {
Package thePackage = type.getPackage();
if (thePackage == null) {
return null;
}
String pkg = thePackage.getName();
String[] tokens = pkg.split("\\.");
StringBuilder builder = new StringBuilder("http://");
for (int i = tokens.length - 1; i >= 0; i--) {
String token = tokens[i];
builder.append(token);
if (i != 0) {
builder.append(".");
} else {
builder.append("/");
}
}
return builder.toString();
}
/**
* Derives a local name from the class name by converting the first character to lowercase according to JAXB rules (Section 8.12.1).
*
* @param type the class to derive the name from
* @return the derived name
*/
private String deriveLocalName(Class> type) {
String localName;
String simpleName = type.getSimpleName();
localName = simpleName.substring(0, 1).toLowerCase() + simpleName.substring(1);
return localName;
}
}
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