/*
* 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.Attribute;
import org.jdom.Content;
import org.jdom.Text;
import org.jetbrains.annotations.Nullable;
public class AttributeBinding implements Binding {
private final Accessor myAccessor;
private final Attribute myAttribute;
private final XmlSerializerImpl myXmlSerializer;
private Binding myBinding;
public AttributeBinding(final Accessor accessor, final Attribute attribute, final XmlSerializerImpl xmlSerializer) {
myAccessor = accessor;
myAttribute = attribute;
myXmlSerializer = xmlSerializer;
}
public Object serialize(Object o, Object context) {
final Object v = myAccessor.read(o);
final Object node = myBinding.serialize(v, context);
return new org.jdom.Attribute(myAttribute.value(), ((Content)node).getValue());
}
@Nullable
public Object deserialize(Object context, Object... nodes) {
assert nodes.length == 1;
Object node = nodes[0];
assert isBoundTo(node);
org.jdom.Attribute attr = (org.jdom.Attribute)node;
final String value = attr.getValue();
final Text text = new Text(value);
myAccessor.write(context, myBinding.deserialize(context, text));
return context;
}
public boolean isBoundTo(Object node) {
return node instanceof org.jdom.Attribute && ((org.jdom.Attribute)node).getName().equals(myAttribute.value());
}
public Class getBoundNodeType() {
return org.jdom.Attribute.class;
}
public void init() {
myBinding = myXmlSerializer.getBinding(myAccessor);
if (!Text.class.isAssignableFrom(myBinding.getBoundNodeType())) {
throw new XmlSerializationException("Can't use attribute binding for non-text content: " + myAccessor);
}
}
}