| /* |
| * 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.implementation.java.injection; |
| |
| import java.lang.reflect.Array; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.StringTokenizer; |
| |
| import org.apache.tuscany.sca.assembly.ComponentProperty; |
| import org.apache.tuscany.sca.assembly.Property; |
| import org.apache.tuscany.sca.common.xml.dom.DOMHelper; |
| import org.apache.tuscany.sca.context.PropertyValueFactory; |
| import org.apache.tuscany.sca.core.ExtensionPointRegistry; |
| import org.apache.tuscany.sca.core.UtilityExtensionPoint; |
| import org.apache.tuscany.sca.core.factory.ObjectCreationException; |
| import org.apache.tuscany.sca.core.factory.ObjectFactory; |
| import org.apache.tuscany.sca.databinding.Mediator; |
| import org.apache.tuscany.sca.databinding.SimpleTypeMapper; |
| import org.apache.tuscany.sca.databinding.impl.SimpleTypeMapperImpl; |
| import org.apache.tuscany.sca.databinding.xml.DOMDataBinding; |
| import org.apache.tuscany.sca.implementation.java.JavaElementImpl; |
| import org.apache.tuscany.sca.implementation.java.introspect.JavaIntrospectionHelper; |
| import org.apache.tuscany.sca.interfacedef.DataType; |
| import org.apache.tuscany.sca.interfacedef.impl.DataTypeImpl; |
| import org.apache.tuscany.sca.interfacedef.util.TypeInfo; |
| import org.apache.tuscany.sca.interfacedef.util.XMLType; |
| import org.w3c.dom.Document; |
| import org.w3c.dom.Element; |
| import org.w3c.dom.Node; |
| import org.w3c.dom.NodeList; |
| |
| /** |
| * |
| * @version $Rev$ $Date$ |
| */ |
| public class JavaPropertyValueObjectFactory implements PropertyValueFactory { |
| private Mediator mediator = null; |
| private SimpleTypeMapper simpleTypeMapper; |
| private boolean isSimpleType; |
| |
| public JavaPropertyValueObjectFactory(ExtensionPointRegistry registry) { |
| UtilityExtensionPoint utilityExtensionPoint = registry.getExtensionPoint(UtilityExtensionPoint.class); |
| this.mediator = utilityExtensionPoint.getUtility(Mediator.class); |
| this.simpleTypeMapper = utilityExtensionPoint.getUtility(SimpleTypeMapper.class); |
| } |
| |
| public JavaPropertyValueObjectFactory(Mediator mediator) { |
| this.mediator = mediator; |
| } |
| |
| public ObjectFactory createValueFactory(Property property, Object propertyValue, JavaElementImpl javaElement) { |
| Document doc = (Document)propertyValue; |
| List<Node> nodes = getValues(doc); |
| Class<?> javaType = JavaIntrospectionHelper.getBaseType(javaElement.getType(), javaElement.getGenericType()); |
| if (property.isMany()) { |
| if (javaElement.getType().isArray()) { |
| return new ArrayObjectFactoryImpl(property, nodes, javaType); |
| } else { |
| return new ListObjectFactoryImpl(property, nodes, javaType); |
| } |
| } else { |
| Object value = null; |
| if (!nodes.isEmpty()) { |
| value = nodes.get(0); |
| } |
| return new ObjectFactoryImpl(property, value, javaType); |
| |
| } |
| } |
| |
| public ObjectFactory createValueFactory(Property property, Object propertyValue, Class<?> javaType) { |
| Document doc = (Document)propertyValue; |
| List<Node> nodes = getValues(doc); |
| if (property.isMany()) { |
| return new ListObjectFactoryImpl(property, nodes, javaType); |
| } else { |
| Object value = null; |
| if (!nodes.isEmpty()) { |
| value = nodes.get(0); |
| } |
| return new ObjectFactoryImpl(property, value, javaType); |
| } |
| } |
| |
| public <B> B createPropertyValue(ComponentProperty property, Class<B> type) { |
| ObjectFactory<B> factory = this.createValueFactory(property, property.getValue(), type); |
| return factory.getInstance(); |
| } |
| |
| abstract class ObjectFactoryImplBase implements ObjectFactory { |
| protected SimpleTypeMapper simpleTypeMapper = new SimpleTypeMapperImpl(); |
| protected Property property; |
| protected Object propertyValue; |
| protected Class<?> javaType; |
| protected DataType<XMLType> sourceDataType; |
| protected DataType<?> targetDataType; |
| |
| public ObjectFactoryImplBase(Property property, Object propertyValue, Class<?> javaType) { |
| this.property = property; |
| this.propertyValue = propertyValue; |
| this.javaType = javaType; |
| sourceDataType = |
| new DataTypeImpl<XMLType>(DOMDataBinding.NAME, Node.class, |
| new XMLType(null, this.property.getXSDType())); |
| |
| targetDataType = property.getDataType(); |
| if (targetDataType == null) { |
| TypeInfo typeInfo = null; |
| if (this.property.getXSDType() != null) { |
| if (simpleTypeMapper.isSimpleXSDType(this.property.getXSDType())) { |
| typeInfo = new TypeInfo(property.getXSDType(), true, null); |
| } else { |
| typeInfo = new TypeInfo(property.getXSDType(), false, null); |
| } |
| } else { |
| typeInfo = new TypeInfo(property.getXSDType(), false, null); |
| } |
| |
| XMLType xmlType = new XMLType(typeInfo); |
| String dataBinding = null; // (String)property.getExtensions().get(DataBinding.class.getName()); |
| if (dataBinding != null) { |
| targetDataType = new DataTypeImpl<XMLType>(dataBinding, javaType, xmlType); |
| } else { |
| targetDataType = new DataTypeImpl<XMLType>(dataBinding, javaType, xmlType); |
| mediator.getDataBindings().introspectType(targetDataType, null); |
| } |
| } |
| } |
| } |
| |
| class ObjectFactoryImpl extends ObjectFactoryImplBase { |
| public ObjectFactoryImpl(Property property, Object propertyValue, Class<?> javaType) { |
| super(property, propertyValue, javaType); |
| } |
| |
| public Object getInstance() throws ObjectCreationException { |
| if (isSimpleType) { |
| try { |
| return simpleTypeMapper.toJavaObject(property.getXSDType(), (String)propertyValue, null); |
| } catch (NumberFormatException ex) { |
| throw new ObjectCreationException("Failed to create instance for property " + property.getName() |
| + " with value " |
| + propertyValue, ex); |
| } catch (IllegalArgumentException ex) { |
| throw new ObjectCreationException("Failed to create instance for property " + property.getName() |
| + " with value " |
| + propertyValue, ex); |
| } |
| } else { |
| return mediator.mediate(propertyValue, sourceDataType, targetDataType, null); |
| // return null; |
| } |
| } |
| } |
| |
| class ListObjectFactoryImpl extends ObjectFactoryImplBase { |
| public ListObjectFactoryImpl(Property property, List<?> propertyValues, Class<?> javaType) { |
| super(property, propertyValues, javaType); |
| } |
| |
| @SuppressWarnings("unchecked") |
| public List<?> getInstance() throws ObjectCreationException { |
| if (isSimpleType) { |
| List<Object> values = new ArrayList<Object>(); |
| for (String aValue : (List<String>)propertyValue) { |
| try { |
| values.add(simpleTypeMapper.toJavaObject(property.getXSDType(), aValue, null)); |
| } catch (NumberFormatException ex) { |
| throw new ObjectCreationException("Failed to create instance for property " + property |
| .getName() |
| + " with value " |
| + aValue |
| + " from value list of " |
| + propertyValue, ex); |
| } catch (IllegalArgumentException ex) { |
| throw new ObjectCreationException("Failed to create instance for property " + property |
| .getName() |
| + " with value " |
| + aValue |
| + " from value list of " |
| + propertyValue, ex); |
| } |
| } |
| return values; |
| } else { |
| List instances = new ArrayList(); |
| for (Node aValue : (List<Node>)propertyValue) { |
| instances.add(mediator.mediate(aValue, sourceDataType, targetDataType, null)); |
| } |
| return instances; |
| } |
| } |
| } |
| |
| class ArrayObjectFactoryImpl extends ObjectFactoryImplBase { |
| public ArrayObjectFactoryImpl(Property property, List<?> propertyValues, Class<?> javaType) { |
| super(property, propertyValues, javaType); |
| } |
| |
| @SuppressWarnings("unchecked") |
| public Object getInstance() throws ObjectCreationException { |
| if (isSimpleType) { |
| int count = 0; |
| Object values = Array.newInstance(javaType, ((List<Object>)propertyValue).size()); |
| for (String aValue : (List<String>)propertyValue) { |
| try { |
| Array.set(values, count++, simpleTypeMapper.toJavaObject(property.getXSDType(), aValue, null)); |
| } catch (NumberFormatException ex) { |
| throw new ObjectCreationException("Failed to create instance for property " + property |
| .getName() |
| + " with value " |
| + aValue |
| + " from value list of " |
| + propertyValue, ex); |
| } catch (IllegalArgumentException ex) { |
| throw new ObjectCreationException("Failed to create instance for property " + property |
| .getName() |
| + " with value " |
| + aValue |
| + " from value list of " |
| + propertyValue, ex); |
| } |
| } |
| return values; |
| } else { |
| Object instances = Array.newInstance(javaType, ((List<Object>)propertyValue).size()); |
| int count = 0; |
| for (Node aValue : (List<Node>)propertyValue) { |
| Array.set(instances, count++, mediator.mediate(aValue, sourceDataType, targetDataType, null)); |
| } |
| return instances; |
| } |
| } |
| } |
| |
| /** |
| * Utility methods |
| */ |
| |
| /** |
| * |
| * @param property |
| * @return |
| */ |
| private boolean isSimpleType(Property property) { |
| if (property.getXSDType() != null) { |
| return simpleTypeMapper.isSimpleXSDType(property.getXSDType()); |
| } else { |
| if (property instanceof Document) { |
| Document doc = (Document)property; |
| Element element = doc.getDocumentElement(); |
| if (element.getChildNodes().getLength() == 1 && element.getChildNodes().item(0).getNodeType() == Element.TEXT_NODE) { |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Retrieve list of simple property values |
| * @param concatenatedValue |
| * @param javaType |
| * @return |
| */ |
| private static List<String> getSimplePropertyValues(String concatenatedValue, Class<?> javaType) { |
| List<String> propValues = new ArrayList<String>(); |
| StringTokenizer st = null; |
| if (javaType.getName().equals("java.lang.String")) { |
| st = new StringTokenizer(concatenatedValue, "\""); |
| } else { |
| st = new StringTokenizer(concatenatedValue); |
| } |
| String aToken = null; |
| while (st.hasMoreTokens()) { |
| aToken = st.nextToken(); |
| if (aToken.trim().length() > 0) { |
| propValues.add(aToken); |
| } |
| } |
| return propValues; |
| } |
| |
| /** |
| * Retrieve the list of complex property values |
| * @param document |
| * @return |
| */ |
| private static List<Node> getValues(Document document) { |
| // The root is the property element |
| Element rootElement = document.getDocumentElement(); |
| List<Node> propValues = new ArrayList<Node>(); |
| NodeList nodes = rootElement.getChildNodes(); |
| for (int count = 0; count < nodes.getLength(); ++count) { |
| Node node = nodes.item(count); |
| if (node.getNodeType() == Document.ELEMENT_NODE) { |
| propValues.add(DOMHelper.promote(node)); |
| } |
| } |
| return propValues; |
| } |
| } |