diff options
Diffstat (limited to 'sandbox/jboynes/sdoproxy/src/main/java/org/apache/tuscany/sdo/helper')
-rw-r--r-- | sandbox/jboynes/sdoproxy/src/main/java/org/apache/tuscany/sdo/helper/DOMHelperImpl.java | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/sandbox/jboynes/sdoproxy/src/main/java/org/apache/tuscany/sdo/helper/DOMHelperImpl.java b/sandbox/jboynes/sdoproxy/src/main/java/org/apache/tuscany/sdo/helper/DOMHelperImpl.java new file mode 100644 index 0000000000..7480151202 --- /dev/null +++ b/sandbox/jboynes/sdoproxy/src/main/java/org/apache/tuscany/sdo/helper/DOMHelperImpl.java @@ -0,0 +1,105 @@ +/** + * + * Copyright 2005 The Apache Software Foundation + * + * 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 org.apache.tuscany.sdo.helper; + +import java.io.IOException; +import java.io.OutputStream; +import java.io.PrintWriter; + +import javax.xml.namespace.QName; + +import org.osoa.sdo.DataObject; +import org.osoa.sdo.Property; +import org.osoa.sdo.Type; +import org.osoa.sdo.helper.DataFactory; +import org.w3c.dom.Document; +import org.w3c.dom.Element; +import org.w3c.dom.Node; + +/** + * @version $Rev$ $Date$ + */ +public class DOMHelperImpl { + private final DataFactory dataFactory; + + public DOMHelperImpl(DataFactory dataFactory) { + this.dataFactory = dataFactory; + } + + public DataObject<?> load(Document doc) { + Element rootElement = doc.getDocumentElement(); + QName name = new QName(rootElement.getNamespaceURI(), rootElement.getLocalName()); + DataObject<?> rootObject = dataFactory.create(name); + for (Node node = rootElement.getFirstChild() ; node != null; node = node.getNextSibling()) { + if (node.getNodeType() != Node.ELEMENT_NODE) { + continue; + } + String propName = node.getLocalName(); + String value = node.getTextContent(); + Property<?> prop = rootObject.getType().getProperty(propName); + rootObject.setString(prop.getIndex(), value); + } + return rootObject; + } + + public void save(DataObject<?> dataObject, Document doc) { + Type<?> t = dataObject.getType(); + Element element = doc.createElementNS(t.getName().getNamespaceURI(), t.getName().getLocalPart()); + int i = 0; + for (Property<?> property : dataObject.getType().getProperties()) { + String value = dataObject.getString(i++); + if (value != null) { + Element propElement = doc.createElementNS(null, property.getName()); + if (property.getType().isDataType()) { + propElement.appendChild(doc.createTextNode(value)); + } + element.appendChild(propElement); + } + } + doc.appendChild(element); + } + + public void writeTo(OutputStream os, Document doc) throws IOException { + PrintWriter writer = new PrintWriter(os); + writeTo(writer, doc.getDocumentElement()); + writer.flush(); + } + + private static void writeTo(PrintWriter writer, Element e) throws IOException { + writer.append('<'); + writer.append(e.getLocalName()); + if (e.hasChildNodes()) { + writer.append('>'); + for (Node node = e.getFirstChild(); node != null; node = node.getNextSibling()) { + switch (node.getNodeType()) { + case Node.TEXT_NODE: + writer.append(node.getTextContent()); + break; + case Node.ELEMENT_NODE: + writeTo(writer, (Element) node); + break; + } + } + writer.append('<'); + writer.append('/'); + writer.append(e.getLocalName()); + writer.append('>'); + } else { + writer.append("/>"); + } + } +} |