| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.tuscany.sca.databinding.jaxb; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Map; |
| |
| /** |
| * The JAXBWrapper tool is used to create a JAXB Object from a series of child objects (wrap) or get |
| * the child objects from a JAXB Object (unwrap) |
| */ |
| public class JAXBWrapperHelper { |
| |
| /** |
| * unwrap Returns the list of child objects of the jaxb object |
| * |
| * @param jaxbObject that represents the type |
| * @param childNames list of xml child names as String |
| * @param pdMap PropertyDescriptor map for this jaxbObject |
| * @return list of Objects in the same order as the element names. |
| */ |
| public Object[] unwrap(Object jaxbObject, List<String> childNames, Map<String, JAXBPropertyDescriptor> pdMap) |
| throws JAXBWrapperException { |
| |
| // Get the object that will have the property descriptors (i.e. the object representing the complexType) |
| Object jaxbComplexTypeObj = jaxbObject; |
| |
| // Get the PropertyDescriptorPlus map. |
| // The method makes sure that each child name has a matching jaxb property |
| // checkPropertyDescriptorMap(jaxbComplexTypeObj.getClass(), childNames, pdMap); |
| |
| // Get the corresponsing objects from the jaxb bean |
| ArrayList<Object> objList = new ArrayList<Object>(); |
| int index = 0; |
| for (String childName : childNames) { |
| JAXBPropertyDescriptor propInfo = getPropertyDescriptor(pdMap, childName, index); |
| |
| Object object = null; |
| try { |
| object = propInfo.get(jaxbComplexTypeObj); |
| } catch (Throwable e) { |
| throw new JAXBWrapperException(e); |
| } |
| |
| objList.add(object); |
| index++; |
| } |
| Object[] jaxbObjects = objList.toArray(); |
| objList = null; |
| return jaxbObjects; |
| |
| } |
| |
| private JAXBPropertyDescriptor getPropertyDescriptor(Map<String, JAXBPropertyDescriptor> pdMap, |
| String childName, |
| int index) { |
| JAXBPropertyDescriptor propInfo = pdMap.get(childName); |
| if (propInfo == null) { |
| // FIXME: [rfeng] Sometimes the child element names don't match. Get chilld by location? |
| List<JAXBPropertyDescriptor> props = new ArrayList<JAXBPropertyDescriptor>(pdMap.values()); |
| // Sort the properties by index. We might need to take propOrder into consideration |
| Collections.sort(props); |
| propInfo = props.get(index); |
| } |
| return propInfo; |
| } |
| |
| /** |
| * wrap Creates a jaxb object that is initialized with the child objects. |
| * <p/> |
| * Note that the jaxbClass must be the class the represents the complexType. (It should never be |
| * JAXBElement) |
| * |
| * @param jaxbClass |
| * @param childNames list of xml child names as String |
| * @param childObjects, component type objects |
| * @param pdMap PropertyDescriptor map for this jaxbObject |
| */ |
| public Object wrap(Class<?> jaxbClass, |
| List<String> childNames, |
| Map<String, Object> childObjects, |
| Map<String, JAXBPropertyDescriptor> pdMap) throws JAXBWrapperException { |
| |
| // Just like unWrap, get the property info map |
| // checkPropertyDescriptorMap(jaxbClass, childNames, pdMap); |
| |
| // The jaxb object always has a default constructor. Create the object |
| Object jaxbObject = null; |
| try { |
| jaxbObject = jaxbClass.newInstance(); |
| } catch (Throwable t) { |
| throw new JAXBWrapperException(t); |
| } |
| |
| wrap(jaxbObject, childNames, childObjects, pdMap); |
| |
| // Return the jaxb object |
| return jaxbObject; |
| } |
| |
| public void wrap(Object jaxbObject, |
| List<String> childNames, |
| Map<String, Object> childObjects, |
| Map<String, JAXBPropertyDescriptor> pdMap) { |
| // Now set each object onto the jaxb object |
| int index = 0; |
| for (String childName : childNames) { |
| JAXBPropertyDescriptor propInfo = getPropertyDescriptor(pdMap, childName, index); |
| Object value = childObjects.get(childName); |
| try { |
| propInfo.set(jaxbObject, value); |
| } catch (Throwable t) { |
| throw new JAXBWrapperException(t); |
| } |
| index++; |
| } |
| } |
| |
| public Object[] unwrap(Object jaxbObject, List<String> childNames) throws JAXBWrapperException { |
| // Get the property descriptor map for this JAXBClass |
| Class<?> jaxbClass = jaxbObject.getClass(); |
| Map<String, JAXBPropertyDescriptor> pdMap = null; |
| try { |
| pdMap = XMLRootElementUtil.createPropertyDescriptorMap(jaxbClass); |
| } catch (Throwable t) { |
| throw new JAXBWrapperException(t); |
| } |
| |
| // Delegate |
| return unwrap(jaxbObject, childNames, pdMap); |
| } |
| |
| public Object wrap(Class<?> jaxbClass, List<String> childNames, Map<String, Object> childObjects) |
| throws JAXBWrapperException { |
| // Get the property descriptor map |
| Map<String, JAXBPropertyDescriptor> pdMap = null; |
| try { |
| pdMap = XMLRootElementUtil.createPropertyDescriptorMap(jaxbClass); |
| } catch (Throwable t) { |
| throw new JAXBWrapperException(t); |
| } |
| |
| // Delegate |
| return wrap(jaxbClass, childNames, childObjects, pdMap); |
| } |
| |
| } |