WebSocketServer.java
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package com.infoloop.tianting.server;
import com.infoloop.tianting.constant.CommonConstants;
import com.infoloop.tianting.server.message.SocketMessage;
import com.infoloop.tianting.server.session.UserSessionData;
import com.infoloop.tianting.server.session.UserSessionKey;
import com.infoloop.tianting.server.session.UserTypeEnum;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.web.socket.CloseStatus;
import org.springframework.web.socket.TextMessage;
import org.springframework.web.socket.WebSocketSession;
import org.springframework.web.socket.handler.TextWebSocketHandler;
import javax.annotation.Nullable;
import java.io.IOException;
import java.util.List;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.CopyOnWriteArrayList;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
import java.util.stream.Collectors;
@Slf4j
public class WebSocketServer extends TextWebSocketHandler {
private static final ConcurrentHashMap<UserSessionKey, List<UserSessionData>> userSessions = new ConcurrentHashMap<>();
private static final long INACTIVITY_TIMEOUT = 60 * 60 * 1000;
private static final ScheduledExecutorService scheduler = Executors.newScheduledThreadPool(1);
static {
scheduler.scheduleAtFixedRate(WebSocketServer::cleanInactiveSessions, 1, 1, TimeUnit.HOURS);
}
private static void cleanInactiveSessions() {
final var currentTime = System.currentTimeMillis();
userSessions.forEach((key, sessionList) ->
userSessions.computeIfPresent(key, (k, sessions) -> {
sessions.removeIf(userData -> {
if (currentTime - userData.getLastActiveTime() > INACTIVITY_TIMEOUT) {
try {
userData.closeSession();
log.info("closeSession, userId: {}, userType: {}", key.getUserId(), key.getUserType());
} catch (IOException e) {
log.error("closeSession error, userId: {}, userType: {}", key.getUserId(), key.getUserType(), e);
}
return true;
}
return false;
});
return sessions.isEmpty() ? null : sessions; // 为空时移除
})
);
}
public static <T> void sendMessageToUser(UserSessionKey key, SocketMessage<T> socketMessage) throws IOException {
sendMessageToUsers(List.of(key), socketMessage);
}
public static <T> void sendMessageToUsers(List<UserSessionKey> keys, SocketMessage<T> socketMessage) throws IOException {
for (final var key : keys) {
final var sessionList = userSessions.get(key);
if (sessionList != null) {
sessionList.forEach(userData -> {
try {
if (userData.getSession().isOpen()) {
userData.getSession().sendMessage(new TextMessage(socketMessage.toJsonString()));
userData.updateLastActiveTime();
log.info("Send message to userId: {}, userType: {}", key.getUserId(), key.getUserType());
} else {
log.info("WebSocket closed; userId: {}, userType: {}", key.getUserId(), key.getUserType());
}
} catch (IOException e) {
log.error("Failed to send message; userId: {}, userType: {}", key.getUserId(), key.getUserType(), e);
}
});
}
}
}
public static <T> void sendMessageByUserType(UserTypeEnum userType, SocketMessage<T> socketMessage) throws IOException {
sendMessageByUserTypes(List.of(userType), socketMessage);
}
public static <T> void sendMessageByUserTypes(List<UserTypeEnum> userTypes, SocketMessage<T> socketMessage) throws IOException {
final var keys = userSessions.keySet().stream()
.filter(userKey -> userTypes.contains(userKey.getUserType()))
.collect(Collectors.toList());
sendMessageToUsers(keys, socketMessage);
}
public static <T> void sendMessageByUserTypes(List<UserTypeEnum> userTypes, List<UserAuthData> userAuthData, SocketMessage<T> socketMessage) throws IOException {
final var keys = userSessions.keySet().stream()
.filter(userKey -> userTypes.contains(userKey.getUserType()))
.filter(userKey -> userAuthData.isEmpty()
|| userAuthData.stream().anyMatch(data -> String.valueOf(data.getOperatorId()).equals(userKey.getUserId()) && data.getUserType().equals(userKey.getUserType())))
.collect(Collectors.toList());
sendMessageToUsers(keys, socketMessage);
}
public static void closeConnection(UserSessionKey key) {
userSessions.computeIfPresent(key, (k, sessionList) -> {
sessionList.forEach(userData -> {
try {
userData.closeSession();
} catch (IOException e) {
log.error("WebSocket close failed: userId: {}, userType: {}", key.getUserId(), key.getUserType(), e);
}
});
return null; // 直接返回 null，移除 key
});
log.info("WebSocket closed; userId: {}, userType: {}", key.getUserId(), key.getUserType());
}
@Nullable
private UserSessionKey getUserSessionKey(WebSocketSession session) {
final var userId = (String) session.getAttributes().get(CommonConstants.USER_ID);
final var userTypeStr = (String) session.getAttributes().get(CommonConstants.USER_TYPE);
final var userType = UserTypeEnum.fromString(userTypeStr);
if (StringUtils.isNotEmpty(userId) && userType != null) {
return UserSessionKey.builder().userId(userId).userType(userType).build();
}
return null;
}
@Override
public void afterConnectionEstablished(WebSocketSession session) {
final var key = getUserSessionKey(session);
if (key != null) {
userSessions.computeIfAbsent(key, k -> new CopyOnWriteArrayList<>()).add(new UserSessionData(session));
log.info("WebSocket connection established; userId: {}, userType: {}", key.getUserId(), key.getUserType());
} else {
log.warn("WebSocket connection failed; unable to retrieve valid user information");
}
}
@Override
public void afterConnectionClosed(WebSocketSession session, CloseStatus status) {
final var key = getUserSessionKey(session);
if (key != null) {
userSessions.computeIfPresent(key, (k, sessionList) -> {
sessionList.removeIf(userData -> userData.getSession().getId().equals(session.getId()));
return sessionList.isEmpty() ? null : sessionList;
});
log.info("WebSocket closed; userId: {}, userType: {}", key.getUserId(), key.getUserType());
} else {
log.warn("WebSocket closed; unable to retrieve valid user information");
}
}
}