src/org/redkale/net/http/WebSocket.java

@@ -32,6 +32,7 @@ import org.redkale.net.*;
  *  此模式下 以上方法都应该被重载。
  * <p>
  *
+ * 
  * @see http://www.redkale.org
  * @author zhangjx
  */
@@ -88,7 +89,7 @@ public abstract class WebSocket {
     public final int send(WebSocketPacket packet) {
         int rs = RETCODE_WSOCKET_CLOSED;
         if (this._runner != null) rs = this._runner.sendMessage(packet);
-        if(_engine.finest) _engine.logger.finest("wsgroupid:" + getGroupid() + " send websocket result is " + rs + " on " + this + " by message(" + packet + ")");
+        if (_engine.finest) _engine.logger.finest("wsgroupid:" + getGroupid() + " send websocket result is " + rs + " on " + this + " by message(" + packet + ")");
         return rs;
     }
 
@@ -130,6 +131,11 @@ public abstract class WebSocket {
         return send(data, true);
     }
 
+    public final int sendPing() {
+        //if (_engine.finest) _engine.logger.finest(this + " on "+_engine.getEngineid()+" ping...");
+        return send(WebSocketPacket.DEFAULT_PING_PACKET);
+    }
+
     public final int sendPing(byte[] data) {
         return send(new WebSocketPacket(FrameType.PING, data));
     }
@@ -260,17 +266,17 @@ public abstract class WebSocket {
     private int sendMessage(Serializable groupid, boolean recent, String text, boolean last) {
         if (_engine.node == null) return RETCODE_NODESERVICE_NULL;
         int rs = _engine.node.sendMessage(groupid, recent, text, last);
-        if(_engine.finest) _engine.logger.finest("wsgroupid:" + groupid + " "+(recent ? "recent " : "") + "send websocket result is " + rs + " on " + this + " by message(" + text + ")");
+        if (_engine.finest) _engine.logger.finest("wsgroupid:" + groupid + " " + (recent ? "recent " : "") + "send websocket result is " + rs + " on " + this + " by message(" + text + ")");
         return rs;
     }
 
     private int sendMessage(Serializable groupid, boolean recent, byte[] data, boolean last) {
         if (_engine.node == null) return RETCODE_NODESERVICE_NULL;
         int rs = _engine.node.sendMessage(groupid, recent, data, last);
-        if(_engine.finest) _engine.logger.finest("wsgroupid:" + groupid + " "+(recent ? "recent " : "") + "send websocket result is " + rs + " on " + this + " by message(byte[" + data.length + "])");
+        if (_engine.finest) _engine.logger.finest("wsgroupid:" + groupid + " " + (recent ? "recent " : "") + "send websocket result is " + rs + " on " + this + " by message(byte[" + data.length + "])");
         return rs;
     }
-    
+
     /**
      * 获取在线用户的节点地址列表
      *
@@ -280,17 +286,17 @@ public abstract class WebSocket {
     protected final Collection<InetSocketAddress> getOnlineNodes(Serializable groupid) {
         return _engine.node.getOnlineNodes(groupid);
     }
-    
+
     /**
      * 获取在线用户的详细连接信息
-     * 
+     *
      * @param groupid
-     * @return 
+     * @return
      */
     protected final Map<InetSocketAddress, List<String>> getOnlineRemoteAddress(Serializable groupid) {
         return _engine.node.getOnlineRemoteAddress(groupid);
     }
-    
+
     /**
      * 获取当前WebSocket下的属性
      * <p>
@@ -432,7 +438,7 @@ public abstract class WebSocket {
 
     public void onClose(int code, String reason) {
     }
-    
+
     @Override
     public String toString() {
         return "ws" + Objects.hashCode(this) + "@" + _remoteAddr;

src/org/redkale/net/http/WebSocketEngine.java

@@ -5,7 +5,6 @@
  */
 package org.redkale.net.http;
 
-import static org.redkale.net.http.WebSocketPacket.DEFAULT_PING_PACKET;
 import static org.redkale.net.http.WebSocketServlet.DEFAILT_LIVEINTERVAL;
 import java.io.*;
 import java.util.*;
@@ -56,8 +55,7 @@ public final class WebSocketEngine {
         });
         long delay = (liveinterval - System.currentTimeMillis() / 1000 % liveinterval) + index * 5;
         scheduler.scheduleWithFixedDelay(() -> {
-            getWebSocketGroups().stream().forEach(x -> x.sendEach(DEFAULT_PING_PACKET));
-            //if (finest) logger.finest(engineid + " ping...");
+            getWebSocketGroups().stream().forEach(x -> x.sendEachPing());
         }, delay, liveinterval, TimeUnit.SECONDS);
         if (finest) logger.finest(this.getClass().getSimpleName() + "(" + engineid + ")" + " start keeplive(delay:" + delay + ", interval:" + liveinterval + "s) scheduler executor");
     }

src/org/redkale/net/http/WebSocketGroup.java

@@ -101,6 +101,14 @@ public final class WebSocketGroup {
         return rs;
     }
 
+    public final int sendEachPing() {
+        int rs = 0;
+        for (WebSocket s : list) {
+            rs |= s.sendPing();
+        }
+        return rs;
+    }
+
     public final int sendRecent(Serializable message) {
         return sendRecent(message, true);
     }