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designer-realize/src/main/java/com/fr/design/mainframe/socketio/DesignerSocketIO.java

@@ -13,7 +13,6 @@ import com.fr.report.RemoteDesignConstants;
 import com.fr.serialization.SerializerHelper;
 import com.fr.stable.ArrayUtils;
 import com.fr.third.apache.log4j.spi.LoggingEvent;
-import com.fr.third.guava.base.Optional;
 import com.fr.workspace.WorkContext;
 import com.fr.workspace.Workspace;
 import com.fr.workspace.base.WorkspaceConstants;
@@ -36,28 +35,19 @@ public class DesignerSocketIO {
         Disconnecting
     }
 
-    private static Optional<Socket> socketIO = Optional.absent();
+    private static Socket socket = null;
     private static Status status = Status.Disconnected;
+    //维护一个当前工作环境的uri列表
+    private static String[] uri;
+    //维护一个关于uri列表的计数器
+    private static int count;
 
-    private static final Emitter.Listener printLog = new Emitter.Listener() {
-        @Override
-        public void call(Object... objects) {
-            if (ArrayUtils.isNotEmpty(objects)) {
-                try {
-                    LoggingEvent event = SerializerHelper.deserialize((byte[]) objects[0]);
-                    DesignerLogger.log(event);
-                } catch (Exception e) {
-                    FineLoggerFactory.getLogger().error(e.getMessage(), e);
-                }
-            }
-        }
-    };
 
     public static void close() {
-        if (socketIO.isPresent()) {
+        if (socket != null) {
             status = Status.Disconnecting;
-            socketIO.get().close();
-            socketIO = Optional.absent();
+            socket.close();
+            socket = null;
         }
     }
 
@@ -66,24 +56,90 @@ public class DesignerSocketIO {
         if (current.isLocal()) {
             return;
         }
+        //每当更换工作环境，更新uri列表，同时更新计数器count
+        try {
+            uri = getSocketUri();
+        } catch (IOException e) {
+            FineLoggerFactory.getLogger().error(e.getMessage(), e);
+        }
+        count = 0;
+        //建立socket并注册监听
+        createSocket();
+    }
+
+    private static void createSocket(){
+        //根据uri和计数器建立连接，并注册监听
         try {
-            String[] uri = getSocketUri(current);
-            socketIO = Optional.of(IO.socket(new URI(uri[0])));
-            socketIO.get().on(WorkspaceConstants.WS_LOGRECORD, printLog);
-            socketIO.get().on(WorkspaceConstants.CONFIG_MODIFY, new Emitter.Listener() {
+            if(count<uri.length) {
+                socket = IO.socket(new URI(uri[count]));
+                socket.on(WorkspaceConstants.WS_LOGRECORD, printLog);
+                socket.on(WorkspaceConstants.CONFIG_MODIFY, modifyConfig);
+                socket.on(Socket.EVENT_CONNECT_ERROR, failRetry);
+                socket.on(Socket.EVENT_DISCONNECT, disConnectHint);
+                socket.connect();
+                status = Status.Connected;
+            }else {
+                //表示所有的uri都连接不成功
+                FineLoggerFactory.getLogger().warn("All uris failed to connect");
+            }
+        } catch (Exception e) {
+            FineLoggerFactory.getLogger().error(e.getMessage(), e);
+        }
+    }
+
+    private static String[] getSocketUri() throws IOException {
+        Workspace current = WorkContext.getCurrent();
+        URL url = new URL(current.getPath());
+        Integer[] ports = current.get(SocketInfoOperator.class).getPort();
+        WorkspaceConnection connection = current.getConnection();
+        String[] result = new String[ports.length];
+        for (int i = 0; i < ports.length; i++) {
+            result[i] = String.format("%s://%s:%s%s?%s=%s&%s=%s",
+                    url.getProtocol(),
+                    url.getHost(),
+                    ports[i],
+                    WorkspaceConstants.WS_NAMESPACE,
+                    DecisionServiceConstants.WEB_SOCKET_TOKEN_NAME,
+                    connection.getToken(),
+                    RemoteDesignConstants.USER_LOCK_ID,
+                    connection.getId());
+        }
+        return result;
+    }
+
+    //失败重试监听器：1、关闭失败的socket 2、计数器加1 3、调用创建socket方法
+    private static final Emitter.Listener failRetry = new Emitter.Listener() {
+        @Override
+        public void call(Object... args) {
+            status = Status.Disconnecting;
+            socket.close();
+            count++;
+            createSocket();
+        }
+    };
+
+    //日志输出监听器
+    private static final Emitter.Listener printLog = new Emitter.Listener() {
         @Override
         public void call(Object... objects) {
-                    assert objects != null && objects.length == 1;
-                    String param = (String) objects[0];
-                    EventDispatcher.fire(RemoteConfigEvent.EDIT, param);
+            if (ArrayUtils.isNotEmpty(objects)) {
+                try {
+                    LoggingEvent event = SerializerHelper.deserialize((byte[]) objects[0]);
+                    DesignerLogger.log(event);
+                } catch (Exception e) {
+                    FineLoggerFactory.getLogger().error(e.getMessage(), e);
                 }
-            });
-            socketIO.get().on(Socket.EVENT_DISCONNECT, new Emitter.Listener() {
+            }
+        }
+    };
+
+    //断开连接提醒监听器
+    private static final Emitter.Listener disConnectHint = new Emitter.Listener() {
         @Override
         public void call(Object... objects) {
             /*
-                     * todo 远程心跳断开不一定 socketio 断开 和远程紧密相关的业务都绑定在心跳上，切换成心跳断开之后进行提醒，
-                     * socketio 只用推日志和通知配置变更
+             * todo 远程心跳断开不一定 socket 断开 和远程紧密相关的业务都绑定在心跳上，切换成心跳断开之后进行提醒，
+             * socket 只用推日志和通知配置变更
              */
             if (status != Status.Disconnecting) {
                 try {
@@ -105,31 +161,16 @@ public class DesignerSocketIO {
             }
             status = Status.Disconnected;
         }
-            });
-            socketIO.get().connect();
-            status = Status.Connected;
-        } catch (Exception e) {
-            FineLoggerFactory.getLogger().error(e.getMessage(), e);
-        }
-    }
+    };
 
-    private static String[] getSocketUri(Workspace current) throws IOException {
-        URL url = new URL(current.getPath());
-        Integer[] ports = WorkContext.getCurrent().get(SocketInfoOperator.class).getPort();
-        WorkspaceConnection connection = WorkContext.getCurrent().getConnection();
-        String[] result = new String[ports.length];
-        for (int i = 0; i < ports.length; i++) {
-            result[i] = String.format("%s://%s:%s%s?%s=%s&%s=%s",
-                    url.getProtocol(),
-                    url.getHost(),
-                    ports[i],
-                    WorkspaceConstants.WS_NAMESPACE,
-                    DecisionServiceConstants.WEB_SOCKET_TOKEN_NAME,
-                    connection.getToken(),
-                    RemoteDesignConstants.USER_LOCK_ID,
-                    connection.getId());
+    //配置变更监听器
+    private static final Emitter.Listener modifyConfig = new Emitter.Listener() {
+        @Override
+        public void call(Object... objects) {
+            assert objects != null && objects.length == 1;
+            String param = (String) objects[0];
+            EventDispatcher.fire(RemoteConfigEvent.EDIT, param);
         }
-        return result;
+    };
 
-    }
 }