Metacat

import org.dataone.service.types.v1.Group;

import org.dataone.service.types.v1.Person;

import org.dataone.service.types.v1.Subject;

import org.dataone.service.types.v1.SubjectInfo;

import edu.ucsb.nceas.metacat.util.RequestUtil;

import edu.ucsb.nceas.metacat.util.SessionData;

        	// initialize the session - three options

        	// #1

        	// load session from certificate in request

            // #2

            if (session == null) {

	        	// check for session-based certificate from the portal

	        	String configurationFileName = servletContext.getInitParameter("oa4mp:client.config.file");

	        	String configurationFilePath = servletContext.getRealPath(configurationFileName);

	        	PortalCertificateManager portalManager = new PortalCertificateManager(configurationFilePath);

	        	logMetacat.debug("Initialized the PortalCertificateManager using config file: " + configurationFilePath);

	        	X509Certificate certificate = portalManager.getCertificate(request);

	        	logMetacat.debug("Retrieved certificate: " + certificate);

		    	PrivateKey key = portalManager.getPrivateKey(request);

		    	logMetacat.debug("Retrieved key: " + key);

		    	if (certificate != null && key != null) {

		        	request.setAttribute("javax.servlet.request.X509Certificate", certificate);

		        	logMetacat.debug("Added certificate to the request: " + certificate.toString());

		    	}

	            // reload session from certificate that we jsut set in request

	            session = CertificateManager.getInstance().getSession(request);

            }

            // #3

            // last resort, check for Metacat sessionid

            if (session == null) {

	            SessionData sessionData = RequestUtil.getSessionData(request);

				if (sessionData != null) {

					String userName = sessionData.getUserName();

					String[] groupNames = sessionData.getGroupNames();

					Subject userSubject = new Subject();

					userSubject.setValue(userName);

					session.setSubject(userSubject);

					SubjectInfo subjectInfo = new SubjectInfo();

					Person person = new Person();

					person.setSubject(userSubject);

					if (groupNames != null && groupNames.length > 0) {

						for (String groupName: groupNames) {

							Group group = new Group();

							group.setGroupName(groupName);

							Subject groupSubject = new Subject();

							groupSubject.setValue(groupName);

							group.setSubject(groupSubject);

							subjectInfo.addGroup(group);

							person.addIsMemberOf(groupSubject);

						}

					}

					subjectInfo.addPerson(person);

					session.setSubjectInfo(subjectInfo);

				}

            }