message_handler.cpp
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00001 /*
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00004  * Copyright (c) 2011, Southwest Research Institute
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00014  *       documentation and/or other materials provided with the distribution.
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00016  *       of its contributors may be used to endorse or promote products derived
00017  *       from this software without specific prior written permission.
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00031 #ifndef FLATHEADERS
00032 #include "simple_message/message_handler.h"
00033 #include "simple_message/log_wrapper.h"
00034 #else
00035 #include "message_handler.h"
00036 #include "log_wrapper.h"
00037 #endif
00038 
00039 namespace industrial
00040 {
00041 namespace message_handler
00042 {
00043 
00044 using namespace industrial::smpl_msg_connection;
00045 using namespace industrial::simple_message;
00046 
00047 MessageHandler::MessageHandler(void)
00048 {
00049   this->setConnection(NULL);
00050   this->setMsgType(StandardMsgTypes::INVALID);
00051 }
00052 
00053 
00054 MessageHandler::~MessageHandler(void)
00055 {
00056 }
00057 
00058 
00059 bool MessageHandler::init(int msg_type, SmplMsgConnection* connection)
00060 {
00061   bool rtn = false;
00062   
00063   if (StandardMsgTypes::INVALID != msg_type)
00064   {
00065     if (NULL != connection)
00066     {
00067       this->setConnection(connection);
00068       this->setMsgType(msg_type);
00069       rtn = true;
00070     }
00071     else
00072     {
00073       LOG_ERROR("Message connection is NULL");
00074       rtn = false;
00075     }
00076     }
00077   else
00078   {
00079     LOG_ERROR("Message handler type: %d, not valid", msg_type);
00080     rtn = false;
00081     }
00082     
00083   return rtn;
00084 }
00085 
00086     
00087     
00088 bool MessageHandler::callback(SimpleMessage & in)
00089 {
00090   bool rtn = false;
00091   
00092   if (validateMsg(in))
00093   {
00094     this->internalCB(in);
00095   }
00096   else
00097   {
00098     LOG_ERROR("Invalid message passed to callback");
00099     rtn = true;
00100   }
00101   
00102   return rtn;
00103 }
00104 
00105 
00106 bool MessageHandler::validateMsg(SimpleMessage & in)
00107 {
00108   bool rtn = false;
00109   
00110   if (in.validateMessage())
00111   {
00112     if (in.getMessageType() == this->getMsgType())
00113     {
00114       rtn = true;
00115     }
00116     else
00117     {
00118       LOG_WARN("Message type: %d, doesn't match handler type: %d",
00119                   in.getMessageType(), this->getMsgType());
00120       rtn = false;
00121     }
00122   }
00123   else
00124   {
00125     LOG_WARN("Passed in message invalid");
00126   }
00127 
00128   return rtn;
00129   
00130 }
00131 
00132 } // namespace message_handler
00133 } // namespace industrial


simple_message
Author(s): Shaun Edwards
autogenerated on Sat Jun 8 2019 20:43:23