com.generallycloud.baseio.container.http11.DefaultHttpSessionManager Maven / Gradle / Ivy

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/*
 * Copyright 2015-2017 GenerallyCloud.com
 *  
 * 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.generallycloud.baseio.container.http11;

import java.util.Collection;
import java.util.Collections;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

import com.generallycloud.baseio.codec.http11.future.Cookie;
import com.generallycloud.baseio.codec.http11.future.HttpReadFuture;
import com.generallycloud.baseio.common.CloseUtil;
import com.generallycloud.baseio.common.DebugUtil;
import com.generallycloud.baseio.common.StringUtil;
import com.generallycloud.baseio.component.SocketSession;
import com.generallycloud.baseio.concurrent.AbstractEventLoop;

//FIXME 限制最大session数量
//FIXME 根据当前是否正在redeploy来保存和恢复session
public class DefaultHttpSessionManager extends AbstractEventLoop implements HttpSessionManager {

	private String					COOKIE_NAME_SESSIONID	= "BSESSIONID";

	private Object					sleepLock				= new Object();

	private Map	sessions				= new ConcurrentHashMap<>();

	private Map	readOnlySessions		= Collections
			.unmodifiableMap(sessions);

	@Override
	public void putSession(String sessionID, HttpSession session) {
		sessions.put(sessionID, session);
	}

	@Override
	public void removeSession(String sessionID) {
		sessions.remove(sessionID);
	}

	@Override
	public HttpSession getHttpSession(HttpContext context, SocketSession ioSession,
			HttpReadFuture future) {

		String sessionID = future.getCookie(COOKIE_NAME_SESSIONID);

		if (StringUtil.isNullOrBlank(sessionID)) {

			DefaultHttpSession session = new DefaultHttpSession(context, ioSession);

			sessionID = session.getSessionID();

			Cookie cookie = new Cookie(COOKIE_NAME_SESSIONID, sessionID);

			future.addCookie(cookie);

			this.sessions.put(sessionID, session);

			return session;
		}

		HttpSession session = sessions.get(sessionID);

		if (session == null) {

			session = new DefaultHttpSession(context, ioSession, sessionID);

			this.sessions.put(sessionID, session);
		}

		session.active(ioSession);

		return session;
	}

	@Override
	public void doLoop() {

		Collection es = sessions.values();

		for (HttpSession session : es) {

			if (!session.isValidate()) {
				sessions.remove(session.getSessionID());
				CloseUtil.close(session.getIoSession());
			}
		}

		sleep(30 * 60 * 1000);
	}

	private void sleep(long time) {
		synchronized (sleepLock) {
			try {
				sleepLock.wait(time);
			} catch (InterruptedException e) {
				DebugUtil.debug(e);
			}
		}
	}

	@Override
	public Map getManagedSessions() {
		return readOnlySessions;
	}

	@Override
	public void wakeup() {
		synchronized (sleepLock) {
			sleepLock.notify();
		}
		super.wakeup();
	}

	@Override
	public int getManagedSessionSize() {
		return sessions.size();
	}

}