Rename SonarWebSocket

Summary:
Part of Sonar -> Flipper rename.
It's about time this is renamed from *Websocket as well, since it doesn't use websockets anymore.

Reviewed By: passy

Differential Revision: D9919695

fbshipit-source-id: 78a63bfb7d5de19c093b7fb775d1426b4fc58f77

xplat/Flipper/FlipperConnectionManager.h

@@ -0,0 +1,63 @@
+/*
+ *  Copyright (c) 2018-present, Facebook, Inc.
+ *
+ *  This source code is licensed under the MIT license found in the LICENSE
+ *  file in the root directory of this source tree.
+ *
+ */
+
+#pragma once
+
+#include <folly/json.h>
+
+namespace facebook {
+namespace flipper {
+
+class FlipperConnectionManager {
+ public:
+  class Callbacks;
+
+ public:
+  virtual ~FlipperConnectionManager(){};
+
+  /**
+   Establishes a connection to the ws server.
+   */
+  virtual void start() = 0;
+
+  /**
+   Closes an open connection to the ws server.
+   */
+  virtual void stop() = 0;
+
+  /**
+   True if there's an open connection.
+   This method may block if the connection is busy.
+   */
+  virtual bool isOpen() const = 0;
+
+  /**
+   Send message to the ws server.
+   */
+  virtual void sendMessage(const folly::dynamic& message) = 0;
+
+  /**
+   Handler for connection and message receipt from the ws server.
+   The callbacks should be set before a connection is established.
+   */
+  virtual void setCallbacks(Callbacks* callbacks) = 0;
+};
+
+class FlipperConnectionManager::Callbacks {
+ public:
+  virtual ~Callbacks(){};
+
+  virtual void onConnected() = 0;
+
+  virtual void onDisconnected() = 0;
+
+  virtual void onMessageReceived(const folly::dynamic& message) = 0;
+};
+
+} // namespace flipper
+} // namespace facebook