/**
* This method retrieves an xml document from the database based on its resource identifier. The
* document is returned as an org.w3c.dom.Document.
*
* @param collection The name of the collection to look for the document.
* @param resourceId The resource identifier of the document to be retrieved.
* @param username The identifier of the user calling the method used for authentication.
* @param password The password of the user calling the method used for authentication.
* @return The xml document retrieved as an org.w3c.dom.Document.
*/
public Document retrieveDocument(
String collection, String resourceId, String username, String password) {
Document doc = null;
try {
// initialize database driver
Class cl = Class.forName(_driver);
Database database = (Database) cl.newInstance();
DatabaseManager.registerDatabase(database);
// get the collection
Collection col = DatabaseManager.getCollection(_URI + collection, username, password);
col.setProperty(OutputKeys.INDENT, "no");
XMLResource res = (XMLResource) col.getResource(resourceId);
if (res == null) System.out.println("document not found!");
else {
doc = (Document) (res.getContentAsDOM()).getOwnerDocument();
}
} catch (Exception e) {
e.printStackTrace();
}
return doc;
}
/* (non-Javadoc)
* @see org.apache.tools.ant.Task#execute()
*/
public void execute() throws BuildException {
if (uri == null) throw new BuildException("You have to specify an XMLDB collection URI");
if (resource == null && collection == null)
throw new BuildException(
"Missing parameter: either resource or collection should be specified");
registerDatabase();
try {
log("Get base collection: " + uri, Project.MSG_DEBUG);
Collection base = DatabaseManager.getCollection(uri, user, password);
if (base == null) {
throw new BuildException("Collection " + uri + " could not be found.");
}
log(
"Create collection management service for collection " + base.getName(),
Project.MSG_DEBUG);
CollectionManagementServiceImpl service =
(CollectionManagementServiceImpl) base.getService("CollectionManagementService", "1.0");
if (resource != null) {
log("Copying resource: " + resource, Project.MSG_INFO);
Resource res = base.getResource(resource);
if (res == null) throw new BuildException("Resource " + resource + " not found.");
service.copyResource(resource, destination, name);
} else {
log("Copying collection: " + collection, Project.MSG_INFO);
service.copy(collection, destination, name);
}
} catch (XMLDBException e) {
throw new BuildException("XMLDB exception during remove: " + e.getMessage(), e);
}
}
public final void testDropResourceRoot() throws Exception {
Collection author = this.dbColl.getChildCollection("vcl-data/author");
Collection vcoll = this.dbColl.getChildCollection("vcl-data/myvc");
int size = vcoll.getResourceCount();
Resource res = author.getResource("author.4.manuel.xml");
author.removeResource(res);
assertEquals(size - 1, vcoll.getResourceCount());
}
public final void testDropResourceSubset() throws Exception {
Collection article = this.dbColl.getChildCollection("vcl-data/article");
int size = article.getResourceCount();
Resource r = article.getResource("article.from.manuel.xml");
// Just do it if the resource exists.
if (r != null) {
article.removeResource(r);
assertEquals(size - 1, article.getResourceCount());
}
}
public final void testDropVirtualResourceFail() throws Exception {
Collection vcoll = this.dbColl.getChildCollection("vcl-data/myvc");
String[] names = vcoll.listResources();
for (int i = 0; i < names.length; i++) {
Resource res = vcoll.getResource(names[i]);
assertTrue(
"Expected instance of VirtualResource and not " + res.getClass(),
res instanceof VirtualResource);
try {
vcoll.removeResource(res);
assertTrue("Cannot delete a VirtualResource.", false);
} catch (XMLDBException e) {
assertTrue(
"Expected errorCode.INVALID_COLLECTION", e.errorCode == ErrorCodes.INVALID_COLLECTION);
}
}
}
private void insertTags() throws Exception {
XUpdateQueryService service =
(XUpdateQueryService) testCol.getService("XUpdateQueryService", "1.0");
XPathQueryService xquery = (XPathQueryService) testCol.getService("XPathQueryService", "1.0");
String[] tagsWritten = new String[RUNS];
for (int i = 0; i < RUNS; i++) {
String tag = tags[i];
String parent;
if (i > 0 && rand.nextInt(100) < 70) {
parent = "//" + tagsWritten[rand.nextInt(i) / 2];
} else parent = "/root";
String xupdate =
"<xupdate:modifications version=\"1.0\" xmlns:xupdate=\"http://www.xmldb.org/xupdate\">"
+ "<xupdate:append select=\""
+ parent
+ "\">"
+ "<xupdate:element name=\""
+ tag
+ "\"/>"
+ "</xupdate:append>"
+ "</xupdate:modifications>";
long mods = service.updateResource("test.xml", xupdate);
System.out.println("Inserted " + tag + ": " + mods + " ; parent = " + parent);
assertEquals(mods, 1);
tagsWritten[i] = tag;
String query = "//" + tagsWritten[rand.nextInt(i + 1)];
ResourceSet result = xquery.query(query);
assertEquals(result.getSize(), 1);
System.out.println(result.getResource(0).getContent());
}
XMLResource res = (XMLResource) testCol.getResource("test.xml");
assertNotNull(res);
System.out.println(res.getContent());
}
/**
* Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
*
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
try {
// Identify Sources
String path = getServletContext().getRealPath("/WEB-INF/");
String XMLFileName = path + "/Home.xml";
String XSLFileName = path + "/Home.xsl";
StreamSource XMLSource = new StreamSource(XMLFileName);
StreamSource XSLSource = new StreamSource(XSLFileName);
String URI = "xmldb:exist://localhost:8444/exist/xmlrpc";
String driver = "org.exist.xmldb.DatabaseImpl";
XMLResource res = null;
Node resNode = null;
Document doc = null;
try {
Class cl = Class.forName(driver);
Database database = (Database) cl.newInstance();
DatabaseManager.registerDatabase(database);
// get the collection
Collection col =
DatabaseManager.getCollection(URI + "/db/AnswerQuest", "admin", "password");
col.setProperty(OutputKeys.INDENT, "no");
res = (XMLResource) col.getResource("Home.xml");
resNode = res.getContentAsDOM();
doc = (Document) resNode;
} catch (Exception e) {
System.err.println("Error Document: " + e.getMessage());
}
DOMSource origDocSource = new DOMSource(doc);
// Identify Result
StreamResult homeOutput = new StreamResult(out);
// Create TransformerFactory
TransformerFactory xFactory = TransformerFactory.newInstance();
// Create Transformer
Transformer optimusPrime = xFactory.newTransformer(XSLSource);
// Apply transform
optimusPrime.transform(XMLSource, homeOutput);
} catch (TransformerConfigurationException ex) {
System.out.println("Encountered TransformerConfiguration Error: " + ex.getMessage());
} catch (TransformerException ex) {
System.out.println("Encountered Transformer Error: " + ex.getMessage());
} finally {
out.close();
}
}
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
String URI = "xmldb:exist://localhost:8444/exist/xmlrpc";
String driver = "org.exist.xmldb.DatabaseImpl";
XMLResource res = null;
Node resNode = null;
Document doc = null;
String path = getServletContext().getRealPath("/");
String XSLFileName = path + "/Slideshow.xsl";
File XslFile = new File(XSLFileName);
String name;
String rating;
try {
name = request.getParameter("name");
rating = request.getParameter("rating");
if (name == null) {
name = "";
}
if (rating == null) {
rating = "";
}
} catch (Exception e) {
name = "";
rating = "";
}
try {
Class cl = Class.forName(driver);
Database database = (Database) cl.newInstance();
DatabaseManager.registerDatabase(database);
// get the collection
Collection col = DatabaseManager.getCollection(URI + "/db/Project", "admin", "password");
XQueryService service = (XQueryService) col.getService("XQueryService", "1.0");
XQueryService another = (XQueryService) col.getService("XQueryService", "1.0");
service.setProperty("indent", "yes");
another.setProperty("indent", "yes");
String queryString = "";
if (!(rating.equals(""))) {
service.declareVariable("rating", "");
queryString =
"for $rating in //app//name[text()='"
+ name
+ "']/../rating "
+ "return update replace $rating with <rating>"
+ rating
+ "</rating>";
service.query(queryString);
}
col.setProperty(OutputKeys.INDENT, "no");
res = (XMLResource) col.getResource("Review.xml");
resNode = res.getContentAsDOM();
doc = (Document) resNode;
} catch (Exception e) {
System.err.println("Error Document: " + e.getMessage());
}
DOMSource origDocSource = new DOMSource(doc);
try {
TransformerFactory transformerFactory = TransformerFactory.newInstance();
StreamSource stylesheet = new StreamSource(XslFile);
Transformer transformer = transformerFactory.newTransformer(stylesheet);
NodeList appNodes = doc.getElementsByTagName("name");
int numEvent = appNodes.getLength();
String prev;
String next;
for (int i = 0; i < numEvent; i++) {
Node eventNode = appNodes.item(i);
NodeList eventNodeListChildren = eventNode.getChildNodes();
Node eventTextNode = eventNodeListChildren.item(0);
String appname = eventTextNode.getNodeValue();
if (name.equals(appname)) {
if (i != 0) {
prev = appNodes.item(i - 1).getChildNodes().item(0).getNodeValue();
} else {
prev = appNodes.item(numEvent - 1).getChildNodes().item(0).getNodeValue();
}
if (i != (numEvent - 1)) {
next = appNodes.item(i + 1).getChildNodes().item(0).getNodeValue();
} else {
next = appNodes.item(0).getChildNodes().item(0).getNodeValue();
}
transformer.setParameter("app_name", appname);
transformer.setParameter("prev_name", prev);
transformer.setParameter("next_name", next);
transformer.transform(origDocSource, new StreamResult(out));
}
}
} catch (Exception e) {
out.println("Exception transformation :" + e.getMessage());
e.printStackTrace(out);
} finally {
out.close();
}
}
