diff options
Diffstat (limited to 'sca-java-1.x/tags/1.6/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/xml/DOMWrapperHandler.java')
-rw-r--r-- | sca-java-1.x/tags/1.6/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/xml/DOMWrapperHandler.java | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/1.6/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/xml/DOMWrapperHandler.java b/sca-java-1.x/tags/1.6/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/xml/DOMWrapperHandler.java new file mode 100644 index 0000000000..19a8fe32d3 --- /dev/null +++ b/sca-java-1.x/tags/1.6/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/xml/DOMWrapperHandler.java @@ -0,0 +1,146 @@ +/* + * 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.xml; + +import java.util.ArrayList; +import java.util.HashSet; +import java.util.List; +import java.util.Set; + +import javax.xml.namespace.QName; +import javax.xml.parsers.ParserConfigurationException; + +import org.apache.tuscany.sca.databinding.TransformationException; +import org.apache.tuscany.sca.databinding.WrapperHandler; +import org.apache.tuscany.sca.databinding.impl.DOMHelper; +import org.apache.tuscany.sca.interfacedef.DataType; +import org.apache.tuscany.sca.interfacedef.Operation; +import org.apache.tuscany.sca.interfacedef.impl.DataTypeImpl; +import org.apache.tuscany.sca.interfacedef.util.ElementInfo; +import org.apache.tuscany.sca.interfacedef.util.WrapperInfo; +import org.apache.tuscany.sca.interfacedef.util.XMLType; +import org.w3c.dom.Document; +import org.w3c.dom.Node; +import org.w3c.dom.NodeList; + +public class DOMWrapperHandler implements WrapperHandler<Node> { + + public DOMWrapperHandler() { + super(); + } + + public Node create(Operation operation, boolean input) { + try { + WrapperInfo inputWrapperInfo = operation.getInputWrapper(); + WrapperInfo outputWrapperInfo = operation.getOutputWrapper(); + ElementInfo element = input ? inputWrapperInfo.getWrapperElement() : outputWrapperInfo.getWrapperElement(); + + Document document = DOMHelper.newDocument(); + QName name = element.getQName(); + return DOMHelper.createElement(document, name); + } catch (ParserConfigurationException e) { + throw new TransformationException(e); + } + } + + public void setChildren(Node wrapper, + Object[] childObjects, + Operation operation, boolean input) { + List<ElementInfo> childElements = input? operation.getInputWrapper().getChildElements(): + operation.getOutputWrapper().getChildElements(); + for (int i = 0; i < childElements.size(); i++) { + setChild(wrapper, i, childElements.get(i), childObjects[i]); + } + + } + public void setChild(Node wrapper, int i, ElementInfo childElement, Object value) { + Node node = (Node)value; + if (node.getNodeType() == Node.DOCUMENT_NODE) { + node = ((Document)node).getDocumentElement(); + } + wrapper.appendChild(wrapper.getOwnerDocument().importNode(node, true)); + } + + public List getChildren(Node wrapper, Operation operation, boolean input) { + assert wrapper != null; + List<ElementInfo> childElements = input? operation.getInputWrapper().getChildElements(): + operation.getOutputWrapper().getChildElements(); + if (wrapper.getNodeType() == Node.DOCUMENT_NODE) { + wrapper = ((Document)wrapper).getDocumentElement(); + } + List<Node> elements = new ArrayList<Node>(); + NodeList nodes = wrapper.getChildNodes(); + for (int j = 0; j < nodes.getLength(); j++) { + Node node = nodes.item(j); + if (node.getNodeType() == Node.ELEMENT_NODE) { + elements.add(node); + } + } + return elements; + } + + /** + * @see org.apache.tuscany.sca.databinding.WrapperHandler#getWrapperType(Operation, boolean) + */ + public DataType getWrapperType(Operation operation, boolean input) { + WrapperInfo inputWrapperInfo = operation.getInputWrapper(); + WrapperInfo outputWrapperInfo = operation.getOutputWrapper(); + ElementInfo element = input ? inputWrapperInfo.getWrapperElement() : outputWrapperInfo.getWrapperElement(); + DataType<XMLType> wrapperType = + new DataTypeImpl<XMLType>(DOMDataBinding.NAME, Node.class, new XMLType(element)); + return wrapperType; + } + + public boolean isInstance(Object wrapperObj, + Operation operation, + boolean input) { + WrapperInfo inputWrapperInfo = operation.getInputWrapper(); + WrapperInfo outputWrapperInfo = operation.getOutputWrapper(); + ElementInfo element = input ? inputWrapperInfo.getWrapperElement() : outputWrapperInfo.getWrapperElement(); + + List<ElementInfo> childElements = input? inputWrapperInfo.getChildElements(): + outputWrapperInfo.getChildElements(); + + Node wrapper = (Node)wrapperObj; + if (wrapper.getNodeType() == Node.DOCUMENT_NODE) { + wrapper = ((Document)wrapper).getDocumentElement(); + } + QName elementName = new QName(wrapper.getNamespaceURI(), wrapper.getLocalName()); + if (!element.getQName().equals(elementName)) { + return false; + } + Set<QName> names = new HashSet<QName>(); + for (ElementInfo e : childElements) { + names.add(e.getQName()); + } + NodeList nodes = wrapper.getChildNodes(); + for (int j = 0; j < nodes.getLength(); j++) { + Node node = nodes.item(j); + if (node.getNodeType() == Node.ELEMENT_NODE) { + elementName = new QName(wrapper.getNamespaceURI(), wrapper.getLocalName()); + if (!names.contains(elementName)) { + return false; + } + } + } + return true; + } + +} |