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| package org.acegisecurity.concurrent; |
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| import java.util.ArrayList; |
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| import java.util.Collections; |
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| import java.util.Date; |
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| import java.util.HashMap; |
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| import java.util.HashSet; |
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| import java.util.Iterator; |
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| import java.util.List; |
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| import java.util.Map; |
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| import java.util.Set; |
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| |
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| import javax.servlet.http.HttpSession; |
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| import org.acegisecurity.ui.session.HttpSessionDestroyedEvent; |
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| import org.springframework.context.ApplicationEvent; |
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| import org.springframework.context.ApplicationListener; |
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| import org.springframework.util.Assert; |
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| public class SessionRegistryImpl implements SessionRegistry, |
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| ApplicationListener { |
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| private Map principals = Collections.synchronizedMap(new HashMap()); |
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| private Map sessionIds = Collections.synchronizedMap(new HashMap()); |
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| public SessionInformation[] getAllSessions(Object principal) {
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| Set sessionsUsedByPrincipal = (Set) principals.get(principal);
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| if (sessionsUsedByPrincipal == null) {
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| return null;
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| } |
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| List list = new ArrayList();
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| Iterator iter = sessionsUsedByPrincipal.iterator();
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| while (iter.hasNext()) {
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| String sessionId = (String) iter.next();
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| list.add(getSessionInformation(sessionId));
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| } |
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| return (SessionInformation[]) list.toArray(new SessionInformation[] {});
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| } |
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| public SessionInformation getSessionInformation(String sessionId) {
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| Assert.hasText(sessionId, "SessionId required as per inerface contract");
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| return (SessionInformation) sessionIds.get(sessionId);
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| } |
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| public void onApplicationEvent(ApplicationEvent event) {
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| if (event instanceof HttpSessionDestroyedEvent) {
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| String sessionId = ((HttpSession) event.getSource()).getId();
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| removeSessionInformation(sessionId);
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| } |
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| } |
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| public void refreshLastRequest(String sessionId) {
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| Assert.hasText(sessionId, "SessionId required as per inerface contract");
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| SessionInformation info = getSessionInformation(sessionId);
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| if (info != null) {
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| info.refreshLastRequest();
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| } |
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| } |
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| |
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| public void registerNewSession(String sessionId, Object principal)
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| throws SessionAlreadyUsedException { |
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| Assert.hasText(sessionId, "SessionId required as per inerface contract");
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| Assert.notNull(principal, "Principal required as per inerface contract");
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| if (getSessionInformation(sessionId) != null) {
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| throw new SessionAlreadyUsedException("Session " + sessionId
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| + " is already is use"); |
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| } |
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| |
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| sessionIds.put(sessionId,
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| new SessionInformation(principal, sessionId, new Date())); |
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| Set sessionsUsedByPrincipal = (Set) principals.get(principal);
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| if (sessionsUsedByPrincipal == null) {
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| sessionsUsedByPrincipal = Collections.synchronizedSet(new HashSet());
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| } |
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| sessionsUsedByPrincipal.add(sessionId);
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| principals.put(principal, sessionsUsedByPrincipal);
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| } |
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| public void removeSessionInformation(String sessionId) {
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| Assert.hasText(sessionId, "SessionId required as per inerface contract");
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| SessionInformation info = getSessionInformation(sessionId);
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| if (info != null) {
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| sessionIds.remove(sessionId);
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| |
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| Set sessionsUsedByPrincipal = (Set) principals.get(info
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| .getPrincipal()); |
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| if (sessionsUsedByPrincipal != null) {
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| sessionsUsedByPrincipal.remove(sessionId);
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| if (sessionsUsedByPrincipal.size() == 0) {
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| principals.remove(info.getPrincipal());
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| } |
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| } |
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| } |
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| } |
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| } |