io.bitsensor.plugins.shaded.org.springframework.messaging.simp.user.DefaultUserSessionRegistry Maven / Gradle / Ivy
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/*
* Copyright 2002-2015 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.bitsensor.plugins.shaded.org.springframework.messaging.simp.user;
import java.util.Collections;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.CopyOnWriteArraySet;
import io.bitsensor.plugins.shaded.org.springframework.util.Assert;
/**
* A default thread-safe implementation of {@link UserSessionRegistry}.
*
* @author Rossen Stoyanchev
* @since 4.0
* @deprecated as of 4.2 this class is no longer used, see deprecation notes
* on {@link UserSessionRegistry} for more details.
*/
@Deprecated
@SuppressWarnings({"deprecation", "unused"})
public class DefaultUserSessionRegistry implements UserSessionRegistry {
// userId -> sessionId
private final ConcurrentMap> userSessionIds = new ConcurrentHashMap>();
private final Object lock = new Object();
@Override
public Set getSessionIds(String user) {
Set set = this.userSessionIds.get(user);
return (set != null ? set : Collections.emptySet());
}
@Override
public void registerSessionId(String user, String sessionId) {
Assert.notNull(user, "User must not be null");
Assert.notNull(sessionId, "Session ID must not be null");
synchronized (this.lock) {
Set set = this.userSessionIds.get(user);
if (set == null) {
set = new CopyOnWriteArraySet();
this.userSessionIds.put(user, set);
}
set.add(sessionId);
}
}
@Override
public void unregisterSessionId(String userName, String sessionId) {
Assert.notNull(userName, "User Name must not be null");
Assert.notNull(sessionId, "Session ID must not be null");
synchronized (lock) {
Set set = this.userSessionIds.get(userName);
if (set != null) {
if (set.remove(sessionId) && set.isEmpty()) {
this.userSessionIds.remove(userName);
}
}
}
}
}