/** Accepts <tt>config.xml</tt> submission, as well as serve it. */
@WebMethod(name = "config.xml")
public void doConfigDotXml(StaplerRequest req, StaplerResponse rsp)
throws IOException, ServletException {
checkPermission(Jenkins.ADMINISTER);
if (req.getMethod().equals("GET")) {
// read
rsp.setContentType("application/xml");
Jenkins.XSTREAM2.toXML(getNode(), rsp.getOutputStream());
return;
}
if (req.getMethod().equals("POST")) {
// submission
Node result = (Node) Jenkins.XSTREAM2.fromXML(req.getReader());
replaceBy(result);
return;
}
// huh?
rsp.sendError(SC_BAD_REQUEST);
}
/**
* Action when 'restore' button is pressed: Replace current config file by older version.
*
* @param req Incoming StaplerRequest
* @param rsp Outgoing StaplerResponse
* @throws IOException If something goes wrong
*/
public final void doRestore(StaplerRequest req, StaplerResponse rsp) throws IOException {
checkConfigurePermission();
final String timestamp = req.getParameter("timestamp");
final XmlFile xmlFile = getHistoryDao().getOldRevision(slave, timestamp);
final Slave newSlave = (Slave) Jenkins.XSTREAM2.fromXML(xmlFile.getFile());
final List<Node> nodes = new ArrayList<Node>();
nodes.addAll(hudson.getNodes());
nodes.remove(slave);
nodes.add(newSlave);
slave = newSlave;
hudson.setNodes(nodes);
rsp.sendRedirect(getHudson().getRootUrl() + slave.toComputer().getUrl());
}