com.liferay.portal.util.WebAppPool.java Source code

Introduction

Here is the source code for com.liferay.portal.util.WebAppPool.java

Source

/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 */

package com.liferay.portal.util;

import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;

/**
 * @author Brian Wing Shun Chan
 */
public class WebAppPool {

    public static void clear() {
        _webAppPool.clear();
    }

    public static Object get(Long webAppId, String key) {
        Map<String, Object> map = _webAppPool.get(webAppId);

        if (map == null) {
            return null;
        }

        return map.get(key);
    }

    public static void put(Long webAppId, String key, Object obj) {
        Map<String, Object> map = _webAppPool.get(webAppId);

        if (map == null) {
            map = new ConcurrentHashMap<>();

            Map<String, Object> previousMap = _webAppPool.putIfAbsent(webAppId, map);

            if (previousMap != null) {
                map = previousMap;
            }
        }

        map.put(key, obj);
    }

    public static Object remove(Long webAppId, String key) {
        Map<String, Object> map = _webAppPool.get(webAppId);

        if (map == null) {
            return null;
        }

        return map.remove(key);
    }

    private static final ConcurrentMap<Long, Map<String, Object>> _webAppPool = new ConcurrentHashMap<>();

}