com.liferay.portal.kernel.servlet.ServletContextPool.java Source code

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Here is the source code for com.liferay.portal.kernel.servlet.ServletContextPool.java

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/**
 * 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.kernel.servlet;

import com.liferay.petra.string.StringBundler;
import com.liferay.portal.kernel.log.Log;
import com.liferay.portal.kernel.log.LogFactoryUtil;
import com.liferay.portal.kernel.util.PortalUtil;

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

import javax.servlet.ServletContext;

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

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

    public static boolean containsKey(String servletContextName) {
        if (servletContextName == null) {
            return false;
        }

        boolean value = _servletContexts.containsKey(servletContextName);

        if (_log.isDebugEnabled()) {
            _log.debug(StringBundler.concat("Contains key ", servletContextName, " ", value));
        }

        return value;
    }

    public static ServletContext get(String servletContextName) {
        ServletContext servletContext = _servletContexts.get(servletContextName);

        if (_log.isDebugEnabled()) {
            _log.debug(StringBundler.concat("Get ", servletContextName, " ", servletContext));
        }

        return servletContext;
    }

    public static Set<String> keySet() {
        return _servletContexts.keySet();
    }

    public static void put(String servletContextName, ServletContext servletContext) {

        if (_log.isDebugEnabled()) {
            _log.debug(StringBundler.concat("Put ", servletContextName, " ", servletContext));
        }

        _servletContexts.put(servletContextName, servletContext);
    }

    public static ServletContext remove(String servletContextName) {

        // We should never remove the portal context. See LPS-12683.

        String contextPath = PortalUtil.getPathContext();

        if (contextPath.equals(servletContextName)) {
            return null;
        }

        ServletContext servletContext = _servletContexts.remove(servletContextName);

        if (_log.isDebugEnabled()) {
            _log.debug(StringBundler.concat("Remove ", servletContextName, " ", servletContext));
        }

        return servletContext;
    }

    private static final Log _log = LogFactoryUtil.getLog(ServletContextPool.class);

    private static final Map<String, ServletContext> _servletContexts = new ConcurrentHashMap<>();

}