| /* |
| * Copyright 2000-2013 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.AbstractCollection; |
| import org.jdom.Content; |
| import org.jdom.Element; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.util.*; |
| |
| abstract class AbstractCollectionBinding implements Binding { |
| private Map<Class, Binding> myElementBindings; |
| |
| private final Class myElementType; |
| private final String myTagName; |
| @Nullable protected final Accessor myAccessor; |
| private final AbstractCollection myAnnotation; |
| |
| public AbstractCollectionBinding(Class elementType, String tagName, @Nullable Accessor accessor) { |
| myElementType = elementType; |
| myTagName = tagName; |
| myAccessor = accessor; |
| myAnnotation = accessor == null ? null : XmlSerializerImpl.findAnnotation(accessor.getAnnotations(), AbstractCollection.class); |
| } |
| |
| @Override |
| public void init() { |
| if (myAnnotation != null) { |
| if (!myAnnotation.surroundWithTag()) { |
| if (myAnnotation.elementTag() == null) { |
| throw new XmlSerializationException("If surround with tag is turned off, element tag must be specified for: " + myAccessor); |
| } |
| |
| if (myAnnotation.elementTag().equals(Constants.OPTION)) { |
| for (Binding binding : getElementBindings().values()) { |
| if (binding instanceof TagBindingWrapper) { |
| throw new XmlSerializationException("If surround with tag is turned off, element tag must be specified for: " + myAccessor); |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| protected Binding getElementBinding(Class<?> elementClass) { |
| final Binding binding = getElementBindings().get(elementClass); |
| return binding == null ? XmlSerializerImpl.getBinding(elementClass) : binding; |
| } |
| |
| private synchronized Map<Class, Binding> getElementBindings() { |
| if (myElementBindings == null) { |
| myElementBindings = new HashMap<Class, Binding>(); |
| |
| myElementBindings.put(myElementType, getBinding(myElementType)); |
| |
| if (myAnnotation != null) { |
| for (Class aClass : myAnnotation.elementTypes()) { |
| myElementBindings.put(aClass, getBinding(aClass)); |
| |
| } |
| } |
| } |
| |
| return myElementBindings; |
| } |
| |
| protected Binding getElementBinding(Object node) { |
| for (Binding binding : getElementBindings().values()) { |
| if (binding.isBoundTo(node)) return binding; |
| } |
| throw new XmlSerializationException("Node " + node + " is not bound"); |
| } |
| |
| private Binding getBinding(final Class type) { |
| Binding binding = XmlSerializerImpl.getBinding(type); |
| return binding.getBoundNodeType().isAssignableFrom(Element.class) ? binding : createElementTagWrapper(binding); |
| } |
| |
| private Binding createElementTagWrapper(final Binding elementBinding) { |
| if (myAnnotation == null) return new TagBindingWrapper(elementBinding, Constants.OPTION, Constants.VALUE); |
| |
| return new TagBindingWrapper(elementBinding, |
| myAnnotation.elementTag() != null ? myAnnotation.elementTag() : Constants.OPTION, |
| myAnnotation.elementValueAttribute() != null ? myAnnotation.elementValueAttribute() : Constants.VALUE); |
| } |
| |
| abstract Object processResult(Collection result, Object target); |
| abstract Iterable getIterable(Object o); |
| |
| @Override |
| public Object serialize(Object o, Object context, SerializationFilter filter) { |
| Iterable iterable = getIterable(o); |
| if (iterable == null) return context; |
| |
| final String tagName = getTagName(o); |
| if (tagName != null) { |
| Element result = new Element(tagName); |
| for (Object e : iterable) { |
| if (e == null) { |
| throw new XmlSerializationException("Collection " + myAccessor + " contains 'null' object"); |
| } |
| final Binding binding = getElementBinding(e.getClass()); |
| result.addContent((Content)binding.serialize(e, result, filter)); |
| } |
| |
| return result; |
| } |
| else { |
| List<Object> result = new ArrayList<Object>(); |
| for (Object e : iterable) { |
| final Binding binding = getElementBinding(e.getClass()); |
| result.add(binding.serialize(e, result, filter)); |
| } |
| |
| return result; |
| } |
| } |
| |
| @Override |
| public Object deserialize(Object o, @NotNull Object... nodes) { |
| Collection result; |
| |
| if (getTagName(o) != null) { |
| assert nodes.length == 1; |
| Element e = (Element)nodes[0]; |
| |
| result = createCollection(e.getName()); |
| final Content[] childElements = JDOMUtil.getContent(e); |
| for (final Content n : childElements) { |
| if (XmlSerializerImpl.isIgnoredNode(n)) continue; |
| final Binding elementBinding = getElementBinding(n); |
| Object v = elementBinding.deserialize(o, n); |
| //noinspection unchecked |
| result.add(v); |
| } |
| } |
| else { |
| result = new ArrayList(); |
| for (Object node : nodes) { |
| if (XmlSerializerImpl.isIgnoredNode(node)) continue; |
| final Binding elementBinding = getElementBinding(node); |
| Object v = elementBinding.deserialize(o, node); |
| //noinspection unchecked |
| result.add(v); |
| } |
| } |
| |
| |
| return processResult(result, o); |
| } |
| |
| protected Collection createCollection(final String tagName) { |
| return new ArrayList(); |
| } |
| |
| @Override |
| public boolean isBoundTo(Object node) { |
| if (!(node instanceof Element)) return false; |
| |
| final String tagName = getTagName(node); |
| if (tagName == null) { |
| for (Binding binding : getElementBindings().values()) { |
| if (binding.isBoundTo(node)) return true; |
| } |
| } |
| |
| return ((Element)node).getName().equals(tagName); |
| } |
| |
| @Override |
| public Class getBoundNodeType() { |
| return Element.class; |
| } |
| |
| public Class getElementType() { |
| return myElementType; |
| } |
| |
| @Nullable |
| private String getTagName(final Object target) { |
| if (myAnnotation == null || myAnnotation.surroundWithTag()) return getCollectionTagName(target); |
| return null; |
| } |
| |
| protected String getCollectionTagName(final Object target) { |
| return myTagName; |
| } |
| } |