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konstantin.utkin.cpp avatar image
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C++ API Dictionary programmatic setup

Greetings! I am using latest RTSDK C/CPP 2.1.3.G1 aka EMA/ETA 3.7.3.G1 aka 3.7.3.3 and having dictionary timeout issues similar to https://community.developers.refinitiv.com/questions/95787/emadictionary-retrieval-failed-timed-out-after-wai.html

I increased timeout up to 120 seconds, and it helped only once, while most of the time I am having timeout anyway, so I tried to modify config to use local dictionary files. I am preparing config programmatically, so in the code it looks like the following: 

void createProgramaticConfig(Map& configDb, const EmaString& aHost, const EmaString& aPort) {
    Map elementMap;
    ElementList elementList;

    elementMap.addKeyAscii("Consumer_1", MapEntry::AddEnum,
        ElementList()
        .addAscii("Channel", "Channel_1")
        .addAscii("Logger", "Logger_1")
        .addAscii("Dictionary", "Dictionary_1")
        .complete()).complete();
    elementList.addMap("ConsumerList", elementMap);
    elementList.complete();
    elementMap.clear();

    configDb.addKeyAscii("ConsumerGroup", MapEntry::AddEnum, elementList);
    elementList.clear();

    //----------------

    Map dictMap;
    dictMap.addKeyAscii("Dictionary_1", MapEntry::AddEnum,
        ElementList()
        .addAscii("Name", "Dictionary_1")
        .addAscii("DictionaryType", "DictionaryType::FileDictionary")
        .addAscii("RdmFieldDictionaryFileName", "./elektron/RDMFieldDictionary")
        .addAscii("EnumTypeDefFileName", "./elektron/enumtype.def").complete()).complete();
    ElementList dictList;
    dictList.addMap("DictionaryList", dictMap);
    dictList.complete();
    configDb.addKeyAscii("DictionaryGroup", MapEntry::AddEnum, dictList);

    //----------------
    elementMap.addKeyAscii("Logger_1", MapEntry::AddEnum,
        ElementList()
        .addEnum("LoggerType", 0)
        .addAscii("FileName", "logFile")
        .addEnum("LoggerSeverity", 0).complete()).complete();
    elementList.addMap("LoggerList", elementMap);
    elementList.complete();
    elementMap.clear();

    configDb.addKeyAscii("LoggerGroup", MapEntry::AddEnum, elementList);
    elementList.clear();

    //----------------

    ElementList channelElementList;
    channelElementList
        .addEnum("ChannelType", 1) // Use the RSSL_CONN_TYPE_ENCRYPTED connection
        .addAscii("Host", aHost)
        .addAscii("Port", aPort)
        .addUInt("EnableSessionManagement", 1);

    channelElementList.addEnum("EncryptedProtocolType", 1); //RSSL_CONN_TYPE_ENCRYPTED
    channelElementList.complete();

    elementMap.addKeyAscii("Channel_1", MapEntry::AddEnum, channelElementList);
    elementMap.complete();
    elementList.addMap("ChannelList", elementMap);
    elementList.complete();

    configDb.addKeyAscii("ChannelGroup", MapEntry::AddEnum, elementList);

    configDb.complete();
}

Once config is made, I am printing it to the log, to ensure it has valid structure: 

MapEntry  action="Add" key dataType="Ascii" value="ConsumerGroup" dataType="ElementList"
    ElementList
        ElementEntry name="ConsumerList" dataType="Map"
            Map
                MapEntry action="Add" key dataType="Ascii" value="Consumer_1" dataType="ElementList"
                    ElementList
                        ElementEntry name="Channel" dataType="Ascii" value="Channel_1"
                        ElementEntry name="Logger" dataType="Ascii" value="Logger_1"
                        ElementEntry name="Dictionary" dataType="Ascii" value="Dictionary_1"
                        ElementEntry name="DictionaryRequestTimeOut" dataType="UInt" value="120000"
                    ElementListEnd
                MapEntryEnd
            MapEnd
        ElementEntryEnd
    ElementListEnd
MapEntryEnd

MapEntry  action="Add" key dataType="Ascii" value="DictionaryGroup" dataType="ElementList"
    ElementList
        ElementEntry name="DictionaryList" dataType="Map"
            Map
                MapEntry action="Add" key dataType="Ascii" value="Dictionary_1" dataType="ElementList"
                    ElementList
                        ElementEntry name="Name" dataType="Ascii" value="Dictionary_1"
                        ElementEntry name="DictionaryType" dataType="Ascii" value="DictionaryType::FileDictionary"
                        ElementEntry name="RdmFieldDictionaryFileName" dataType="Ascii" value="./elektron/RDMFieldDictionary"
                        ElementEntry name="EnumTypeDefFileName" dataType="Ascii" value="./elektron/enumtype.def"
                    ElementListEnd
                MapEntryEnd
            MapEnd
        ElementEntryEnd
    ElementListEnd
MapEntryEnd

MapEntry  action="Add" key dataType="Ascii" value="LoggerGroup" dataType="ElementList"
    ElementList
        ElementEntry name="LoggerList" dataType="Map"
            Map
                MapEntry action="Add" key dataType="Ascii" value="Logger_1" dataType="ElementList"
                    ElementList
                        ElementEntry name="LoggerType" dataType="Enum" value="0"
                        ElementEntry name="FileName" dataType="Ascii" value="logFile"
                        ElementEntry name="LoggerSeverity" dataType="Enum" value="0"
                    ElementListEnd
                MapEntryEnd
            MapEnd
        ElementEntryEnd
    ElementListEnd
MapEntryEnd

MapEntry  action="Add" key dataType="Ascii" value="ChannelGroup" dataType="ElementList"
    ElementList
        ElementEntry name="ChannelList" dataType="Map"
            Map
                MapEntry action="Add" key dataType="Ascii" value="Channel_1" dataType="ElementList"
                    ElementList
                        ElementEntry name="ChannelType" dataType="Enum" value="1"
                        ElementEntry name="Host" dataType="Ascii" value="us-east-1-aws-3-med.optimized-pricing-api.refinitiv.net"
                        ElementEntry name="Port" dataType="Ascii" value="14002"
                        ElementEntry name="EnableSessionManagement" dataType="UInt" value="1"
                        ElementEntry name="EncryptedProtocolType" dataType="Enum" value="1"
                    ElementListEnd
                MapEntryEnd
            MapEnd
        ElementEntryEnd
    ElementListEnd
MapEntryEnd

However, this dictionary config is being ignored, and app is trying to request dictionary anyway. Log file attached: logFile_11052.txt


Probably, config is a bit wrong? However, I made it according to examples, and not able to find mistakes there. Could anybody assits, please?

Also, is it normal to experience such a big timeouts for dictionary requests from server?

#technologyema-apic++elektron-data-dictionaryommconsumer
logfile-11052.txt (40.6 KiB)
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wasin.w avatar image
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Hello @konstantin.utkin.cpp

Thank you for reaching out to us. I checked the EMA C++ Cons421 and Cons450 (the connectWebSocket part which requires a local dictionary setting) example codes. They set the Dictionary Type with addEnum() method, not addAscii() method as follows:

    innerMap.addKeyAscii( "Dictionary_1", MapEntry::AddEnum,
        ElementList()
        //.addEnum( "DictionaryType", 1 ) // Use ChannelDictionaryEnum
        .addEnum("DictionaryType", 0) // Use FileDictionaryEnum
        .addAscii( "RdmFieldDictionaryFileName", "C:\\drive_d\\Project\\APIs\\RTSDK_CPP\\RTSDK-2.1.3.L1.win.rrg\\Cpp-C\\etc\\RDMFieldDictionary" )
        .addAscii( "EnumTypeDefFileName", "C:\\drive_d\\Project\\APIs\\RTSDK_CPP\\RTSDK-2.1.3.L1.win.rrg\\Cpp-C\\etc\\enumtype.def" ).complete() ).complete();

I did a quick test on my end with EMA 2.1.3 RRG, and it works file. The trace file shows that it downloaded dictionary from my local machine, not the ADS server.


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konstantin.utkin.cpp avatar image konstantin.utkin.cpp

Hello @wasin.w it worked, thank you very much! Didn't noticed this in examples.

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