/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.zeppelin.notebook.repo.zeppelinhub.model;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import org.apache.commons.lang.StringUtils;
/**
* Simple and yet dummy container for zeppelinhub session.
*
*/
public class UserSessionContainer {
private static class Entity {
public final String userSession;
Entity(String userSession) {
this.userSession = userSession;
}
}
private Map<String, Entity> sessions = new ConcurrentHashMap<>();
public static final UserSessionContainer instance = new UserSessionContainer();
public synchronized String getSession(String principal) {
Entity entry = sessions.get(principal);
if (entry == null) {
return StringUtils.EMPTY;
}
return entry.userSession;
}
public synchronized String setSession(String principal, String userSession) {
Entity entry = new Entity(userSession);
sessions.put(principal, entry);
return entry.userSession;
}
}