/*
* Copyright 2000-2009 JetBrains s.r.o.
*
* 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 com.intellij.util.xmlb;
import com.intellij.util.xmlb.annotations.Tag;
import org.jdom.Element;
import org.jetbrains.annotations.Nullable;
import java.util.ArrayList;
class JDOMElementBinding implements Binding {
private final Accessor myAccessor;
private final String myTagName;
public JDOMElementBinding(final Accessor accessor) {
myAccessor = accessor;
final Tag tag = XmlSerializerImpl.findAnnotation(myAccessor.getAnnotations(), Tag.class);
assert tag != null : "jdom.Element property without @Tag annotation: " + accessor;
myTagName = tag.value();
}
public Object serialize(Object o, Object context) {
Object value = myAccessor.read(o);
if (value == null) {
return context;
}
if (value instanceof Element) {
Element targetElement;
targetElement = (Element)((Element)value).clone();
targetElement.setName(myTagName);
return targetElement;
}
if (value instanceof Element[]) {
ArrayList<Element> result = new ArrayList<Element>();
for (Element element : ((Element[])value)) {
Element target = ((Element)element.clone()).setName(myTagName);
result.add(target);
}
return result;
}
throw new XmlSerializationException("org.jdom.Element expected but " + value + " found");
}
@Nullable
public Object deserialize(Object context, Object... nodes) {
Element[] result = new Element[nodes.length];
System.arraycopy(nodes, 0, result, 0, nodes.length);
if (myAccessor.getValueClass().isArray()) {
myAccessor.write(context, result);
}
else {
assert result.length == 1;
myAccessor.write(context, result[0]);
}
return context;
}
public boolean isBoundTo(Object node) {
return node instanceof Element && ((Element)node).getName().equals(myTagName);
}
public Class getBoundNodeType() {
throw new UnsupportedOperationException("Method getBoundNodeType is not supported in " + getClass());
}
public void init() {
}
}