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/**
* Copyright (c) 2014, 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 TYPE_BASE_H_
#define TYPE_BASE_H_
#include "rpc_base.h"
namespace Json {
class Value;
}
namespace rpc {
enum MessageType {
kRequest = 0,
kResponse = 1,
kNotification = 2
};
// Base class for all RPC messages
// Has methods to identify interface this message belongs to
// And message ID
class Message {
public:
// Type of message
virtual MessageType message_type() const = 0;
// Numerical function identifier, unique to the interface
// Responses share function identifier with corresponding requests
virtual int32_t function_id() const = 0;
// Function string identifier as specified in original xml file
virtual const char* function_string_id() const = 0;
// Interface name as specified in original xml file
virtual const char* interface_string_id() const = 0;
// Serializes message to Json::Value
virtual Json::Value ToJsonValue() const = 0;
virtual ~Message() {}
};
// Base class for all interface-specific requests
class RequestBase : public Message, public CompositeType {
public:
explicit RequestBase(InitializationState init_state): CompositeType(init_state) {}
// Message interface
MessageType message_type() const { return kRequest; }
virtual ~RequestBase() {}
};
// Base class for all interface-specific responses
class ResponseBase : public Message, public CompositeType {
public:
ResponseBase(InitializationState init_state): CompositeType(init_state) {}
// Message interface
MessageType message_type() const { return kResponse; }
virtual ~ResponseBase() {}
};
// Base class for all interface-specific notifications
class NotificationBase : public Message, public CompositeType {
public:
explicit NotificationBase(InitializationState init_state): CompositeType(init_state) {}
MessageType message_type() const { return kNotification; }
// Message interface
virtual ~NotificationBase() {}
};
} // namespace rpc
#endif /* TYPE_BASE_H_ */
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