CommonSessionManager.java
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package com.genersoft.iot.vmp.gb28181.session;
import com.genersoft.iot.vmp.common.CommonCallback;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;
import java.util.Calendar;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
/**
* 通用回调管理
*/
@Component
public class CommonSessionManager {
public static Map<String, CommonSession> callbackMap = new ConcurrentHashMap<>();
/**
* 存储回调相关的信息
*/
class CommonSession{
public String session;
public long createTime;
public int timeout;
public CommonCallback<Object> callback;
public CommonCallback<String> timeoutCallback;
}
/**
* 添加回调
* @param sessionId 唯一标识
* @param callback 回调
* @param timeout 超时时间, 单位分钟
*/
public void add(String sessionId, CommonCallback<Object> callback, CommonCallback<String> timeoutCallback,
Integer timeout) {
CommonSession commonSession = new CommonSession();
commonSession.session = sessionId;
commonSession.callback = callback;
commonSession.createTime = System.currentTimeMillis();
if (timeoutCallback != null) {
commonSession.timeoutCallback = timeoutCallback;
}
if (timeout != null) {
commonSession.timeout = timeout;
}
callbackMap.put(sessionId, commonSession);
}
public void add(String sessionId, CommonCallback<Object> callback) {
add(sessionId, callback, null, 1);
}
public CommonCallback<Object> get(String sessionId, boolean destroy) {
CommonSession commonSession = callbackMap.get(sessionId);
if (destroy) {
callbackMap.remove(sessionId);
}
return commonSession.callback;
}
public CommonCallback<Object> get(String sessionId) {
return get(sessionId, false);
}
public void delete(String sessionID) {
callbackMap.remove(sessionID);
}
@Scheduled(fixedRate= 60) //每分钟执行一次
public void execute(){
Calendar cal = Calendar.getInstance();
cal.add(Calendar.MINUTE, -1);
for (String session : callbackMap.keySet()) {
if (callbackMap.get(session).createTime < cal.getTimeInMillis()) {
// 超时
if (callbackMap.get(session).timeoutCallback != null) {
callbackMap.get(session).timeoutCallback.run("timeout");
}
callbackMap.remove(session);
}
}
}
}