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The jetty core handler adapted to legacy ee8 handler.
The newest version!
//
// ========================================================================
// Copyright (c) 1995 Mort Bay Consulting Pty Ltd and others.
//
// This program and the accompanying materials are made available under the
// terms of the Eclipse Public License v. 2.0 which is available at
// https://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0
// which is available at https://www.apache.org/licenses/LICENSE-2.0.
//
// SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
// ========================================================================
//
package org.eclipse.jetty.ee8.nested;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.Collections;
import java.util.EnumSet;
import java.util.Enumeration;
import java.util.EventListener;
import java.util.List;
import java.util.ListIterator;
import java.util.Set;
import java.util.concurrent.CopyOnWriteArrayList;
import java.util.function.Function;
import javax.servlet.DispatcherType;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.SessionCookieConfig;
import javax.servlet.SessionTrackingMode;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import javax.servlet.http.HttpSessionActivationListener;
import javax.servlet.http.HttpSessionAttributeListener;
import javax.servlet.http.HttpSessionBindingEvent;
import javax.servlet.http.HttpSessionBindingListener;
import javax.servlet.http.HttpSessionContext;
import javax.servlet.http.HttpSessionEvent;
import javax.servlet.http.HttpSessionIdListener;
import javax.servlet.http.HttpSessionListener;
import org.eclipse.jetty.http.HttpCookie;
import org.eclipse.jetty.http.MetaData;
import org.eclipse.jetty.server.HttpStream;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.Session;
import org.eclipse.jetty.session.AbstractSessionManager;
import org.eclipse.jetty.session.ManagedSession;
import org.eclipse.jetty.session.SessionCache;
import org.eclipse.jetty.session.SessionConfig;
import org.eclipse.jetty.session.SessionIdManager;
import org.eclipse.jetty.session.SessionManager;
import org.eclipse.jetty.util.Callback;
import org.eclipse.jetty.util.StringUtil;
import org.eclipse.jetty.util.TypeUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class SessionHandler extends ScopedHandler implements SessionConfig.Mutable {
static final Logger LOG = LoggerFactory.getLogger(SessionHandler.class);
public static final EnumSet DEFAULT_SESSION_TRACKING_MODES = EnumSet.of(SessionTrackingMode.COOKIE, SessionTrackingMode.URL);
private final CoreSessionManager _sessionManager = new CoreSessionManager();
private final List _sessionAttributeListeners = new CopyOnWriteArrayList<>();
private final List _sessionListeners = new CopyOnWriteArrayList<>();
private final List _sessionIdListeners = new CopyOnWriteArrayList<>();
private final SessionCookieConfig _cookieConfig = new SessionHandler.CookieConfig();
private ContextHandler _contextHandler;
/**
* Wrapper to ensure the correct lifecycle for all sessions in all
* contexts to which the request has been dispatched. When a response
* is about to be sent back to the client, all of the sessions are
* given the opportunity to persist themselves. When the response is
* finished being handled, then the sessions have their reference
* counts decremented, potentially leading to eviction from their cache,
* as appropriate to the configuration of that cache.
*
* This wrapper replaces the AbstractSessionManager.SessionStreamWrapper.
*/
private static class SessionStreamWrapper extends HttpStream.Wrapper {
private final ContextHandler.CoreContextRequest _request;
private final org.eclipse.jetty.server.Context _context;
public SessionStreamWrapper(HttpStream wrapped, ContextHandler.CoreContextRequest request) {
super(wrapped);
_request = request;
_context = _request.getContext();
}
@Override
public void failed(Throwable x) {
_request.completeSessions();
super.failed(x);
}
@Override
public void send(MetaData.Request metadataRequest, MetaData.Response metadataResponse, boolean last, ByteBuffer content, Callback callback) {
if (metadataResponse != null) {
// Write out all sessions
_request.commitSessions();
}
super.send(metadataRequest, metadataResponse, last, content, callback);
}
@Override
public void succeeded() {
// Decrement usage count on all sessions
_request.completeSessions();
super.succeeded();
}
}
public SessionHandler() {
setSessionTrackingModes(DEFAULT_SESSION_TRACKING_MODES);
installBean(_sessionManager);
installBean(_cookieConfig);
installBean(_sessionListeners);
installBean(_sessionIdListeners);
installBean(_sessionAttributeListeners);
}
public SessionManager getSessionManager() {
return _sessionManager;
}
protected List getSessionListeners() {
return _sessionListeners;
}
protected List getSessionAttributeListeners() {
return _sessionAttributeListeners;
}
protected List getSessionIdListeners() {
return _sessionIdListeners;
}
@Override
public void setSessionCache(SessionCache cache) {
_sessionManager.setSessionCache(cache);
}
public SessionCache getSessionCache() {
return _sessionManager.getSessionCache();
}
@Override
public void setSessionIdManager(SessionIdManager sessionIdManager) {
_sessionManager.setSessionIdManager(sessionIdManager);
}
public SessionIdManager getSessionIdManager() {
return _sessionManager.getSessionIdManager();
}
protected void configureCookies() {
if (_contextHandler == null)
return;
//configure the name of the session cookie set by an init param
String tmp = _contextHandler.getInitParameter(SessionConfig.__SessionCookieProperty);
if (tmp != null)
setSessionCookie(tmp);
//configure the name of the session id path param set by an init param
tmp = _contextHandler.getInitParameter(SessionConfig.__SessionIdPathParameterNameProperty);
if (tmp != null)
setSessionIdPathParameterName(tmp);
//configure checkRemoteSessionEncoding set by an init param
tmp = _contextHandler.getInitParameter(SessionConfig.__CheckRemoteSessionEncodingProperty);
if (tmp != null)
setCheckingRemoteSessionIdEncoding(Boolean.parseBoolean(tmp));
//configure the domain of the session cookie set by an init param
tmp = _contextHandler.getInitParameter(SessionConfig.__SessionDomainProperty);
if (tmp != null)
setSessionDomain(tmp);
//configure the path of the session cookie set by an init param
tmp = _contextHandler.getInitParameter(SessionConfig.__SessionPathProperty);
if (tmp != null)
setSessionPath(tmp);
//configure the max age of the session cookie set by an init param
tmp = _contextHandler.getInitParameter(SessionConfig.__MaxAgeProperty);
if (tmp != null)
setMaxCookieAge(Integer.parseInt(tmp.trim()));
}
@Override
protected void doStart() throws Exception {
_contextHandler = ContextHandler.getCurrentContext().getContextHandler();
super.doStart();
configureCookies();
}
/**
* Adds an event listener for session-related events.
*
* @param listener the session event listener to add
* Individual SessionManagers implementations may accept arbitrary listener types,
* but they are expected to at least handle HttpSessionActivationListener,
* HttpSessionAttributeListener, HttpSessionBindingListener and HttpSessionListener.
* @return true if the listener was added
* @see #removeEventListener(EventListener)
* @see HttpSessionAttributeListener
* @see HttpSessionListener
* @see HttpSessionIdListener
*/
@Override
public boolean addEventListener(EventListener listener) {
if (super.addEventListener(listener)) {
if (listener instanceof HttpSessionAttributeListener)
_sessionAttributeListeners.add((HttpSessionAttributeListener) listener);
if (listener instanceof HttpSessionListener)
_sessionListeners.add((HttpSessionListener) listener);
if (listener instanceof HttpSessionIdListener)
_sessionIdListeners.add((HttpSessionIdListener) listener);
return true;
}
return false;
}
@Override
public boolean removeEventListener(EventListener listener) {
if (super.removeEventListener(listener)) {
if (listener instanceof HttpSessionAttributeListener)
_sessionAttributeListeners.remove(listener);
if (listener instanceof HttpSessionListener)
_sessionListeners.remove(listener);
if (listener instanceof HttpSessionIdListener)
_sessionIdListeners.remove(listener);
return true;
}
return false;
}
public SessionCookieConfig getSessionCookieConfig() {
return _cookieConfig;
}
public Set getDefaultSessionTrackingModes() {
return DEFAULT_SESSION_TRACKING_MODES;
}
public Set getEffectiveSessionTrackingModes() {
if (_sessionManager.isUsingCookies()) {
if (_sessionManager.isUsingUriParameters())
return Set.of(SessionTrackingMode.COOKIE, SessionTrackingMode.URL);
return Set.of(SessionTrackingMode.COOKIE);
}
if (_sessionManager.isUsingUriParameters())
return Set.of(SessionTrackingMode.URL);
return Collections.emptySet();
}
public void setSessionTrackingModes(Set sessionTrackingModes) {
if (sessionTrackingModes != null && sessionTrackingModes.size() > 1 && sessionTrackingModes.contains(SessionTrackingMode.SSL)) {
throw new IllegalArgumentException("sessionTrackingModes.SSL is not supported");
}
_sessionManager.setUsingCookies(sessionTrackingModes != null && sessionTrackingModes.contains(SessionTrackingMode.COOKIE));
_sessionManager.setUsingUriParameters(sessionTrackingModes != null && sessionTrackingModes.contains(SessionTrackingMode.URL));
}
@Override
public int getMaxCookieAge() {
return _sessionManager.getMaxCookieAge();
}
@Override
public int getMaxInactiveInterval() {
return _sessionManager.getMaxInactiveInterval();
}
@Override
public int getRefreshCookieAge() {
return _sessionManager.getRefreshCookieAge();
}
@Override
public HttpCookie.SameSite getSameSite() {
return _sessionManager.getSameSite();
}
@Override
public String getSessionComment() {
return _sessionManager.getSessionComment();
}
@Override
public String getSessionCookie() {
return _sessionManager.getSessionCookie();
}
@Override
public String getSessionDomain() {
return _sessionManager.getSessionDomain();
}
@Override
public String getSessionIdPathParameterName() {
return _sessionManager.getSessionIdPathParameterName();
}
@Override
public String getSessionIdPathParameterNamePrefix() {
return _sessionManager.getSessionIdPathParameterNamePrefix();
}
@Override
public String getSessionPath() {
return _sessionManager.getSessionPath();
}
@Override
public boolean isCheckingRemoteSessionIdEncoding() {
return _sessionManager.isCheckingRemoteSessionIdEncoding();
}
@Override
public boolean isHttpOnly() {
return _sessionManager.isHttpOnly();
}
@Override
public boolean isPartitioned() {
return _sessionManager.isPartitioned();
}
@Override
public boolean isSecureCookies() {
return _sessionManager.isSecureCookies();
}
@Override
public boolean isSecureRequestOnly() {
return _sessionManager.isSecureRequestOnly();
}
@Override
public boolean isUsingCookies() {
return _sessionManager.isUsingCookies();
}
@Override
public boolean isUsingUriParameters() {
return _sessionManager.isUsingUriParameters();
}
@Override
public void setCheckingRemoteSessionIdEncoding(boolean value) {
_sessionManager.setCheckingRemoteSessionIdEncoding(value);
}
@Override
public void setHttpOnly(boolean value) {
_sessionManager.setHttpOnly(value);
}
@Override
public void setPartitioned(boolean value) {
_sessionManager.setPartitioned(value);
}
@Override
public void setMaxCookieAge(int value) {
_sessionManager.setMaxCookieAge(value);
}
@Override
public void setMaxInactiveInterval(int value) {
_sessionManager.setMaxInactiveInterval(value);
}
@Override
public void setRefreshCookieAge(int value) {
_sessionManager.setRefreshCookieAge(value);
}
@Override
public void setSameSite(HttpCookie.SameSite sameSite) {
_sessionManager.setSameSite(sameSite);
}
@Override
public void setSecureCookies(boolean value) {
_sessionManager.setSecureCookies(value);
}
@Override
public void setSecureRequestOnly(boolean value) {
_sessionManager.setSecureRequestOnly(value);
}
@Override
public void setSessionComment(String sessionComment) {
_sessionManager.setSessionComment(sessionComment);
}
@Override
public void setSessionCookie(String value) {
_sessionManager.setSessionCookie(value);
}
@Override
public void setSessionDomain(String value) {
_sessionManager.setSessionDomain(value);
}
@Override
public void setSessionIdPathParameterName(String value) {
_sessionManager.setSessionIdPathParameterName(value);
}
@Override
public void setSessionPath(String value) {
_sessionManager.setSessionPath(value);
}
@Override
public void setUsingCookies(boolean value) {
_sessionManager.setUsingCookies(value);
}
@Override
public void setUsingUriParameters(boolean value) {
_sessionManager.setUsingUriParameters(value);
}
@Override
public void doScope(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
ContextHandler.CoreContextRequest coreRequest = baseRequest.getHttpChannel().getCoreRequest();
SessionManager oldSessionManager = null;
ManagedSession oldSession = null;
AbstractSessionManager.RequestedSession oldRequestedSession = null;
ManagedSession currentSession = null;
AbstractSessionManager.RequestedSession currentRequestedSession = null;
try {
switch(baseRequest.getDispatcherType()) {
case REQUEST:
{
//add a HttpStream.wrapper to commit and complete sessions created/loaded during this request
_sessionManager.addSessionStreamWrapper(coreRequest);
// find and set the session if one exists, along with an appropriate session manager
currentRequestedSession = _sessionManager.resolveRequestedSessionId(coreRequest);
coreRequest.setSessionManager(_sessionManager);
coreRequest.setRequestedSession(currentRequestedSession);
if (currentRequestedSession != null) {
coreRequest.setManagedSession(currentRequestedSession.session());
currentSession = currentRequestedSession.session();
}
break;
}
case ASYNC:
case ERROR:
case FORWARD:
case INCLUDE:
{
oldSessionManager = coreRequest.getSessionManager();
oldSession = coreRequest.getManagedSession();
oldRequestedSession = coreRequest.getRequestedSession();
//We have been cross context dispatched. Could be from the same type of context, or a different
//type of context. If from the same type of context, the request is preserved and mutated during the
//dispatch, so a HttpStream.Wrapper would already have been added to it. If from a different type
//of context, we cannot share the HttpStream.Wrapper and so we need to add a new one.
if (oldSessionManager == null)
_sessionManager.addSessionStreamWrapper(coreRequest);
//check if we have changed contexts during the dispatch
if (oldSessionManager != _sessionManager) {
//find any existing session for this context that has already been accessed
currentSession = coreRequest.getManagedSession(_sessionManager);
if (currentSession == null) {
//session for this context has not been already loaded, try getting it
coreRequest.setManagedSession(null);
currentRequestedSession = _sessionManager.resolveRequestedSessionId(coreRequest);
currentSession = currentRequestedSession.session();
} else
currentRequestedSession = new AbstractSessionManager.RequestedSession(currentSession, currentSession.getId(), null);
coreRequest.setManagedSession(currentSession);
coreRequest.setRequestedSession(currentRequestedSession);
coreRequest.setSessionManager(_sessionManager);
}
break;
}
default:
break;
}
//first time the request has entered this context, or we have changed context
if ((currentSession != null) && (oldSessionManager != _sessionManager)) {
HttpCookie cookie = _sessionManager.access(currentRequestedSession.session(), coreRequest.getConnectionMetaData().isSecure());
// Handle changed ID or max-age refresh, but only if this is not a redispatched request
if ((cookie != null) && (request.getDispatcherType() == DispatcherType.ASYNC || request.getDispatcherType() == DispatcherType.REQUEST))
baseRequest.getResponse().replaceCookie(cookie);
}
if (LOG.isDebugEnabled())
LOG.debug("sessionHandler={} session={}", this, currentSession);
nextScope(target, baseRequest, request, response);
} finally {
if (LOG.isDebugEnabled())
LOG.debug("Leaving scope {} dispatch={}, async={}, session={}, oldsession={}, oldsessionhandler={}", this, baseRequest.getDispatcherType(), baseRequest.isAsyncStarted(), baseRequest.getSession(false), oldSession, oldSessionManager);
// revert the session handler to the previous, unless it was null, in which case remember it as
// the first session handler encountered.
if (oldSessionManager != null && oldSessionManager != _sessionManager) {
coreRequest.setSessionManager(oldSessionManager);
coreRequest.setManagedSession(oldSession);
coreRequest.setRequestedSession(oldRequestedSession);
}
}
}
@Override
public void doHandle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
nextHandle(target, baseRequest, request, response);
}
/**
* CookieConfig
*
* Implementation of the javax.servlet.SessionCookieConfig.
* SameSite configuration can be achieved by using setComment.
* Partitioned configuration can be achieved by using setComment.
*
* @see HttpCookie
*/
public final class CookieConfig implements SessionCookieConfig {
@Override
public String getComment() {
return _sessionManager.getSessionComment();
}
@Override
public String getDomain() {
return _sessionManager.getSessionDomain();
}
@Override
public int getMaxAge() {
return _sessionManager.getMaxCookieAge();
}
@Override
public String getName() {
return _sessionManager.getSessionCookie();
}
@Override
public String getPath() {
return _sessionManager.getSessionPath();
}
@Override
public boolean isHttpOnly() {
return _sessionManager.isHttpOnly();
}
@Override
public boolean isSecure() {
return _sessionManager.isSecureCookies();
}
private void checkAvailable() {
if (_contextHandler != null && _contextHandler.isAvailable())
throw new IllegalStateException("CookieConfig cannot be set after ServletContext is started");
}
@Override
public void setComment(String comment) {
checkAvailable();
if (!StringUtil.isEmpty(comment)) {
HttpCookie.SameSite sameSite = Response.HttpCookieFacade.getSameSiteFromComment(comment);
if (sameSite != null)
_sessionManager.setSameSite(sameSite);
boolean partitioned = Response.HttpCookieFacade.isPartitionedInComment(comment);
if (partitioned)
_sessionManager.setPartitioned(partitioned);
_sessionManager.setSessionComment(Response.HttpCookieFacade.getCommentWithoutAttributes(comment));
}
}
@Override
public void setDomain(String domain) {
checkAvailable();
_sessionManager.setSessionDomain(domain);
}
@Override
public void setHttpOnly(boolean httpOnly) {
checkAvailable();
_sessionManager.setHttpOnly(httpOnly);
}
@Override
public void setMaxAge(int maxAge) {
checkAvailable();
_sessionManager.setMaxCookieAge(maxAge);
}
@Override
public void setName(String name) {
checkAvailable();
_sessionManager.setSessionCookie(name);
}
@Override
public void setPath(String path) {
checkAvailable();
_sessionManager.setSessionPath(path);
}
@Override
public void setSecure(boolean secure) {
checkAvailable();
_sessionManager.setSecureCookies(secure);
}
@Override
public String toString() {
return String.format("%s@%x[name=%s,domain=%s,path=%s,max-age=%d,secure=%b,http-only=%b,same-site=%s,comment=%s]", this.getClass().getName(), this.hashCode(), _sessionManager.getSessionCookie(), _sessionManager.getSessionDomain(), _sessionManager.getSessionPath(), _sessionManager.getMaxCookieAge(), _sessionManager.isSecureCookies(), _sessionManager.isHttpOnly(), _sessionManager.getSameSite(), _sessionManager.getSessionComment());
}
}
private class CoreSessionManager extends AbstractSessionManager {
@Override
public Server getServer() {
return SessionHandler.this.getServer();
}
@Override
protected void addSessionStreamWrapper(org.eclipse.jetty.server.Request request) {
final ContextHandler.CoreContextRequest coreRequest = (ContextHandler.CoreContextRequest) request;
coreRequest.addHttpStreamWrapper(s -> new SessionStreamWrapper(s, coreRequest));
}
@Override
public ManagedSession getManagedSession(org.eclipse.jetty.server.Request request) {
return org.eclipse.jetty.server.Request.get(request, ContextHandler.CoreContextRequest.class, ContextHandler.CoreContextRequest::getHttpChannel).getCoreRequest().getManagedSession();
}
@Override
public Session.API newSessionAPIWrapper(ManagedSession session) {
return new ServletSessionApi(session);
}
@Override
protected RequestedSession resolveRequestedSessionId(org.eclipse.jetty.server.Request request) {
return super.resolveRequestedSessionId(request);
}
@Override
public void onSessionAttributeUpdate(Session session, String name, Object old, Object value) {
if (old != null)
callUnboundBindingListener(session, name, old);
if (value != null)
callBoundBindingListener(session, name, value);
if (!_sessionAttributeListeners.isEmpty()) {
HttpSessionBindingEvent event = new HttpSessionBindingEvent(session.getApi(), name, old == null ? value : old);
for (HttpSessionAttributeListener l : _sessionAttributeListeners) {
if (old == null)
l.attributeAdded(event);
else if (value == null)
l.attributeRemoved(event);
else
l.attributeReplaced(event);
}
}
}
/**
* Call the session lifecycle listeners in the order
* they were added.
*
* @param session the session on which to call the lifecycle listeners
*/
@Override
public void onSessionCreated(Session session) {
if (session == null)
return;
super.onSessionCreated(session);
HttpSessionEvent event = new HttpSessionEvent(session.getApi());
for (HttpSessionListener l : _sessionListeners) l.sessionCreated(event);
}
/**
* Call the session lifecycle listeners in
* the reverse order they were added.
*
* @param session the session on which to call the lifecycle listeners
*/
@Override
public void onSessionDestroyed(Session session) {
if (session == null)
return;
super.onSessionDestroyed(session);
//We annoint the calling thread with
//the webapp's classloader because the calling thread may
//come from the scavenger, rather than a request thread
Runnable r = () -> {
HttpSessionEvent event = new HttpSessionEvent(session.getApi());
for (ListIterator i = TypeUtil.listIteratorAtEnd(_sessionListeners); i.hasPrevious(); ) {
i.previous().sessionDestroyed(event);
}
};
_contextHandler.getCoreContextHandler().getContext().run(r);
}
@Override
public void onSessionIdChanged(Session session, String oldId) {
//inform the listeners
super.onSessionIdChanged(session, oldId);
if (!_sessionIdListeners.isEmpty()) {
HttpSessionEvent event = new HttpSessionEvent(session.getApi());
for (HttpSessionIdListener l : _sessionIdListeners) {
l.sessionIdChanged(event, oldId);
}
}
}
protected void callUnboundBindingListener(Session session, String name, Object value) {
if (value instanceof HttpSessionBindingListener)
((HttpSessionBindingListener) value).valueUnbound(new HttpSessionBindingEvent(session.getApi(), name));
}
protected void callBoundBindingListener(Session session, String name, Object value) {
if (value instanceof HttpSessionBindingListener)
((HttpSessionBindingListener) value).valueBound(new HttpSessionBindingEvent(session.getApi(), name));
}
@Override
public void onSessionActivation(Session session) {
for (String name : session.getAttributeNameSet()) {
Object value = session.getAttribute(name);
if (value instanceof HttpSessionActivationListener listener) {
HttpSessionEvent event = new HttpSessionEvent(session.getApi());
listener.sessionDidActivate(event);
}
}
}
@Override
public void onSessionPassivation(Session session) {
for (String name : session.getAttributeNameSet()) {
Object value = session.getAttribute(name);
if (value instanceof HttpSessionActivationListener listener) {
HttpSessionEvent event = new HttpSessionEvent(session.getApi());
listener.sessionWillPassivate(event);
}
}
}
}
public class ServletSessionApi implements HttpSession, Session.API {
public static Function getOrCreateSession(ServletRequest servletRequest) {
return createSession -> {
if (servletRequest instanceof HttpServletRequest request) {
HttpSession session = request.getSession(createSession);
if (session instanceof SessionHandler.ServletSessionApi sessionApi)
return sessionApi.getSession();
}
return null;
};
}
private final ManagedSession _session;
private ServletSessionApi(ManagedSession session) {
_session = session;
}
@Override
public ManagedSession getSession() {
return _session;
}
@Override
public long getCreationTime() {
return _session.getCreationTime();
}
@Override
public String getId() {
return _session.getId();
}
@Override
public long getLastAccessedTime() {
return _session.getLastAccessedTime();
}
@Override
public ServletContext getServletContext() {
return _contextHandler.getServletContext();
}
@Override
public void setMaxInactiveInterval(int interval) {
_session.setMaxInactiveInterval(interval);
}
@Override
public int getMaxInactiveInterval() {
return _session.getMaxInactiveInterval();
}
@Override
public Object getAttribute(String name) {
return _session.getAttribute(name);
}
@Override
public Enumeration getAttributeNames() {
return Collections.enumeration(_session.getAttributeNameSet());
}
@Override
public void setAttribute(String name, Object value) {
_session.setAttribute(name, value);
}
@Override
public void removeAttribute(String name) {
_session.removeAttribute(name);
}
@Override
public void invalidate() {
_session.invalidate();
}
@Override
public boolean isNew() {
return _session.isNew();
}
@Override
public HttpSessionContext getSessionContext() {
return null;
}
@Override
public Object getValue(String name) {
return getAttribute(name);
}
@Override
public String[] getValueNames() {
return _session.getAttributeNameSet().toArray(new String[0]);
}
@Override
public void putValue(String name, Object value) {
setAttribute(name, value);
}
@Override
public void removeValue(String name) {
removeAttribute(name);
}
}
}
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