com.hierynomus.smbj.connection.SessionTable Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of smbj Show documentation

SMB2 protocol library for communication with Windows servers

There is a newer version: 0.13.0

/*
 * Copyright (C)2016 - SMBJ Contributors
 *
 * 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 com.hierynomus.smbj.connection;

import com.hierynomus.smbj.session.Session;

import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.locks.ReentrantLock;

public class SessionTable {
    private ReentrantLock lock = new ReentrantLock();
    private Map lookup = new HashMap<>();

    void registerSession(Long id, Session session) {
        lock.lock();
        try {
            lookup.put(id, session);
        } finally {
            lock.unlock();
        }
    }

    public Session find(Long id) {
        lock.lock();
        try {
            return lookup.get(id);
        } finally {
            lock.unlock();
        }
    }

    public Session removeSession(Long id) {
        lock.lock();
        try {
            return lookup.remove(id);
        } finally {
            lock.unlock();
        }
    }

    boolean isActive(Long id) {
        lock.lock();
        try {
            return lookup.containsKey(id);
        } finally {
            lock.unlock();
        }
    }

    public Collection activeSessions() {
        lock.lock();
        try {
            return new ArrayList<>(lookup.values());
        } finally {
            lock.unlock();
        }
    }
}