/*
* Copyright 2000-2015 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.openapi.util.JDOMUtil;
import com.intellij.util.xmlb.annotations.Tag;
import org.jdom.Element;
import org.jdom.Text;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.util.ArrayList;
import java.util.List;
class TagBinding extends BasePrimitiveBinding implements MultiNodeBinding {
private final String myTextIfEmpty;
public TagBinding(@NotNull MutableAccessor accessor, @NotNull Tag tagAnnotation) {
super(accessor, tagAnnotation.value(), null);
myTextIfEmpty = tagAnnotation.textIfEmpty();
}
@Nullable
@Override
public Object serialize(@NotNull Object o, @Nullable Object context, @NotNull SerializationFilter filter) {
Object value = myAccessor.read(o);
Element serialized = new Element(myName);
if (value == null) {
return serialized;
}
if (myBinding == null) {
serialized.addContent(new Text(XmlSerializerImpl.convertToString(value)));
}
else {
Object node = myBinding.serialize(value, serialized, filter);
if (node != null && node != serialized) {
JDOMUtil.addContent(serialized, node);
}
}
return serialized;
}
@Nullable
@Override
public Object deserializeList(Object context, @NotNull List<Element> elements) {
List<Element> children;
if (elements.size() == 1) {
children = elements.get(0).getChildren();
}
else {
String name = elements.get(0).getName();
children = new ArrayList<Element>();
for (Element element : elements) {
assert element.getName().equals(name);
//noinspection unchecked
children.addAll(((List)element.getChildren()));
}
}
deserialize(context, children);
return context;
}
@Override
public boolean isMulti() {
return myBinding instanceof MultiNodeBinding && ((MultiNodeBinding)myBinding).isMulti();
}
@Override
@Nullable
public Object deserialize(Object context, @NotNull Element element) {
if (myBinding == null) {
String value = XmlSerializerImpl.getTextValue(element, myTextIfEmpty);
XmlSerializerImpl.doSet(context, value, myAccessor, XmlSerializerImpl.typeToClass(myAccessor.getGenericType()));
}
else {
deserialize(context, element.getChildren());
}
return context;
}
private void deserialize(Object o, @NotNull List<Element> children) {
assert myBinding != null;
if (myBinding instanceof BeanBinding && myAccessor.isFinal()) {
((BeanBinding)myBinding).deserializeInto(o, children.get(0), null);
}
else {
myAccessor.set(o, Binding.deserializeList(myBinding, myAccessor.read(o), children));
}
}
@Override
public boolean isBoundTo(@NotNull Element node) {
return node.getName().equals(myName);
}
}