+++ /dev/null
-/*
- * Copyright (C) 2010 Mathieu Baudier <mbaudier@argeo.org>
- *
- * 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.argeo.server.jcr.mvc;
-
-import javax.jcr.Node;
-import javax.jcr.NodeIterator;
-import javax.jcr.RepositoryException;
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-import javax.xml.parsers.DocumentBuilderFactory;
-import javax.xml.transform.Transformer;
-import javax.xml.transform.TransformerFactory;
-import javax.xml.transform.dom.DOMSource;
-import javax.xml.transform.stream.StreamResult;
-
-import org.argeo.ArgeoException;
-import org.argeo.server.ServerSerializer;
-import org.springframework.xml.dom.DomContentHandler;
-import org.w3c.dom.Document;
-import org.w3c.dom.Element;
-import org.w3c.dom.NodeList;
-import org.xml.sax.SAXException;
-
-public class JcrXmlServerSerializer implements ServerSerializer {
- private String contentTypeCharset = "UTF-8";
-
- private final DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory
- .newInstance();
- private final TransformerFactory transformerFactory = TransformerFactory
- .newInstance();
-
- public void serialize(Object obj, HttpServletRequest request,
- HttpServletResponse response) {
- if (!(obj instanceof Node))
- throw new ArgeoException("Only " + Node.class + " is supported");
-
- String noRecurseStr = request.getParameter("noRecurse");
- boolean noRecurse = noRecurseStr != null && noRecurseStr.equals("true");
-
- String depthStr = request.getParameter("depth");
- String downloadStr = request.getParameter("download");
-
- Node node = (Node) obj;
-
- try {
- String contentType = "text/xml;charset=" + contentTypeCharset;
- // download case
- if (downloadStr != null && downloadStr.equals("true")) {
- String fileName = node.getName().replace(':', '_') + ".xml";
- contentType = contentType + ";name=\"" + fileName + "\"";
- response.setHeader("Content-Disposition",
- "attachment; filename=\"" + fileName + "\"");
- response.setHeader("Expires", "0");
- response
- .setHeader("Cache-Control", "no-cache, must-revalidate");
- response.setHeader("Pragma", "no-cache");
- }
-
- response.setContentType(contentType);
- if (depthStr == null) {
- node.getSession().exportDocumentView(node.getPath(),
- response.getOutputStream(), true, noRecurse);
- } else {
- int depth = Integer.parseInt(depthStr);
- Document document = documentBuilderFactory.newDocumentBuilder()
- .newDocument();
- serializeLevelToDom(node, document, 0, depth);
- Transformer transformer = transformerFactory.newTransformer();
- transformer.transform(new DOMSource(document),
- new StreamResult(response.getOutputStream()));
- }
- } catch (Exception e) {
- throw new ArgeoException("Cannot serialize " + node, e);
- }
- }
-
- protected void serializeLevelToDom(Node currentJcrNode,
- org.w3c.dom.Node currentDomNode, int currentDepth, int targetDepth)
- throws RepositoryException, SAXException {
- DomContentHandler domContentHandler = new DomContentHandler(
- currentDomNode);
- currentJcrNode.getSession().exportDocumentView(
- currentJcrNode.getPath(), domContentHandler, true, true);
-
- if (currentDepth == targetDepth)
- return;
-
- // TODO: filter
- NodeIterator nit = currentJcrNode.getNodes();
- while (nit.hasNext()) {
- Node nextJcrNode = nit.nextNode();
- org.w3c.dom.Node nextDomNode;
- if (currentDomNode instanceof Document)
- nextDomNode = ((Document) currentDomNode).getDocumentElement();
- else {
- String name = currentJcrNode.getName();
- NodeList nodeList = ((Element) currentDomNode)
- .getElementsByTagName(name);
- if (nodeList.getLength() < 1)
- throw new ArgeoException("No elment named " + name
- + " under " + currentDomNode);
- // we know it is the last one added
- nextDomNode = nodeList.item(nodeList.getLength() - 1);
- }
- // recursive call
- serializeLevelToDom(nextJcrNode, nextDomNode, currentDepth + 1,
- targetDepth);
- }
- }
-
- public void setContentTypeCharset(String contentTypeCharset) {
- this.contentTypeCharset = contentTypeCharset;
- }
-
-}