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+/*
+ * Copyright (c) 2015, Ford Motor Company
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * Neither the name of the Ford Motor Company nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef SRC_COMPONENTS_PROTOCOL_HANDLER_INCLUDE_PROTOCOL_HANDLER_MULTIFRAME_BUILDER_H_
+#define SRC_COMPONENTS_PROTOCOL_HANDLER_INCLUDE_PROTOCOL_HANDLER_MULTIFRAME_BUILDER_H_
+
+#include <map>
+#include <ostream> // std::basic_ostream
+#include <iterator> // std::ostream_iterator
+#include <algorithm> // std::copy
+
+#include "utils/date_time.h"
+#include "protocol_handler/protocol_packet.h"
+
+/**
+ *\namespace protocol_handlerHandler
+ *\brief Namespace for SmartDeviceLink ProtocolHandler related functionality.
+ */
+namespace protocol_handler {
+/**
+ * \brief Session identifier - contains connection identifier and
+ * session_id from protocol (can be used as hash)
+ */
+// TODO(EZamakhov): move SessionID to protocol_handler/protocol_packet.h
+typedef uint8_t SessionID;
+/**
+ * \brief Message identifier - unique to the session messages
+ */
+// TODO(EZamakhov): move MessageID to protocol_handler/session_observer.h
+typedef uint32_t MessageID;
+
+struct ProtocolFrameData {
+ ProtocolFramePtr frame;
+ TimevalStruct append_time;
+};
+/**
+ *\brief Map of frames with last frame data for messages received in multiple frames.
+ */
+typedef std::map<MessageID, ProtocolFrameData> MessageIDToFrameMap;
+/**
+ *\brief Map of frames with last frame data for messages received in multiple frames.
+ */
+typedef std::map<SessionID, MessageIDToFrameMap> SessionToFrameMap;
+/**
+ *\brief Map of frames with last frame data for messages received in multiple frames.
+ */
+typedef std::map<ConnectionID, SessionToFrameMap> MultiFrameMap;
+
+/**
+ * \class MultiFrameBuilder
+ * \brief Class for assembling consecutive frames according to
+ * messageID to complete multiframes.
+ */
+class MultiFrameBuilder {
+ public:
+ /**
+ * @brief Constructor
+ */
+ MultiFrameBuilder();
+
+ /**
+ *\brief Set timeout of waiting CONSECUTIVE frames
+ */
+ void set_waiting_timeout(const uint32_t consecutive_frame_wait_msecs);
+
+ /**
+ * @brief Add connection for pending data
+ * @return true on success
+ */
+ bool AddConnection(const ConnectionID connection_id);
+
+ /**
+ * @brief Clear all data related to connection_id
+ * @return true on success
+ */
+ bool RemoveConnection(const ConnectionID connection_id);
+
+ /**
+ *\brief Pop assembled and expired frames
+ */
+ ProtocolFramePtrList PopMultiframes();
+
+ /**
+ *\brief Handle Single or Consecutive frame
+ * @return RESULT_OK on success, or RESULT_FAIL in case of any error
+ */
+ RESULT_CODE AddFrame(const ProtocolFramePtr packet);
+
+ private:
+ RESULT_CODE HandleFirstFrame(const ProtocolFramePtr packet);
+ RESULT_CODE HandleConsecutiveFrame(const ProtocolFramePtr packet);
+
+ // Map of frames with last frame data for messages received in multiple frames.
+ MultiFrameMap multiframes_map_;
+ int64_t consecutive_frame_wait_msecs_;
+};
+
+template<typename _CharT>
+std::basic_ostream<_CharT>& operator<<(std::basic_ostream<_CharT>& stream,
+ const protocol_handler::MultiFrameMap& map) {
+ if (map.empty()) {
+ stream << "{empty}";
+ return stream;
+ }
+ for (MultiFrameMap::const_iterator connection_it = map.begin();
+ connection_it != map.end(); ++connection_it) {
+ const SessionToFrameMap& session_map = connection_it->second;
+
+ for (SessionToFrameMap::const_iterator session_it = session_map.begin();
+ session_it != session_map.end(); ++session_it) {
+ const MessageIDToFrameMap& messageId_map = session_it->second;
+
+ for (MessageIDToFrameMap::const_iterator messageId_it = messageId_map.begin();
+ messageId_it != messageId_map.end(); ++messageId_it) {
+ const ProtocolFrameData& frame_data = messageId_it->second;
+
+ stream << "ConnectionID: " << connection_it->first
+ << ", SessionID: " << static_cast<uint32_t>(session_it->first)
+ << ", MessageID: " << static_cast<uint32_t>(messageId_it->first)
+ << " msec, frame: " << frame_data.frame << std::endl;
+ }
+ }
+ }
+ return stream;
+}
+
+} // namespace protocol_handler
+#endif // SRC_COMPONENTS_PROTOCOL_HANDLER_INCLUDE_PROTOCOL_HANDLER_MULTIFRAME_BUILDER_H_