Unable to connect to RCC channel using EMA Consumer

ihor.kiulian
ihor.kiulian
in EMA

1. Using EMA as gradle dependency

implementation group: 'com.refinitiv.ema', name: 'ema', version: '3.6.6.0'

Java 17, Windows 10

2. I used example from https://developers.refinitiv.com/en/api-catalog/refinitiv-real-time-opnsrc/rt-sdk-java/tutorials#ema-consumer-posting-data-to-contribution-channel
Stuck on Establish an encrypted connection to the server step. Keep getting error:

Error text Tunnel Channel Closed

Here is my EmaConfig.xml

<?xml version="1.0" encoding="UTF-8"?>
<EmaConfig>

<ConsumerGroup>
<!-- DefaultConsumer parameter defines which consumer configuration is used by OmmConsumer-->
<!-- if application does not specify it through OmmConsumerConfig::consumerName()-->
<!-- first consumer on the ConsumerList is a default consumer if this parameter is not specified-->
<DefaultConsumer value="Consumer_1"/>
<ConsumerList>
<Consumer>
<Name value="Consumer_1"/>
<!-- Channel is optional: defaulted to "RSSL_SOCKET + localhost + 14002" -->
<Channel value="Channel_1"/>
<!-- Logger is optional: defaulted to "File + Success" -->
<Logger value="Logger_2"/>
<!-- Dictionary is optional: defaulted to "ChannelDictionary" -->
<Dictionary value="Dictionary_2"/>
<XmlTraceToFile value="1"/>
</Consumer>
</ConsumerList>
</ConsumerGroup>
<ChannelGroup>
<ChannelList>
<Channel>
<Name value="Channel_1"/>
<ChannelType value="ChannelType::RSSL_ENCRYPTED"/>
<!-- CompressionType is optional: defaulted to None -->
<!-- possible values: None, ZLib, LZ4 -->
<CompressionType value="CompressionType::None"/>
<GuaranteedOutputBuffers value="5000"/>
<Host value="contrib1-emea1.uat.platform.refinitiv.com"/>
<Port value="443"/>
</Channel>
</ChannelList>
</ChannelGroup>
<DictionaryGroup>
<DictionaryList>
<Dictionary>
<Name value="Dictionary_1"/>
<!-- DictionaryType is optional: defaulted to ChannelDictionary" -->
<!-- possible values: FileDictionary, ChannelDictionary -->
<!-- if DictionaryType is set to ChannelDictionary, file names are ignored -->
<DictionaryType value="DictionaryType::ChannelDictionary"/>
</Dictionary>
<Dictionary>
<Name value="Dictionary_2"/>
<DictionaryType value="DictionaryType::FileDictionary"/>
<!-- dictionary names are optional: defaulted to RDMFieldDictionary and enumtype.def -->
<RdmFieldDictionaryFileName value="./RDMFieldDictionary"/>
<EnumTypeDefFileName value="./enumtype.def"/>
</Dictionary>
</DictionaryList>
</DictionaryGroup>
</EmaConfig>

Here is my source code:

public class ContributorTest {
    public static void main(String[] args) {

        try {
            System.setProperty("java.util.logging.config.file", "src/main/resources/logging.properties");

            System.out.println("Contributing to Refinitiv Contributions Channel");

            System.out.println("Starting encrypted connection...");
            // Create an OMM consumer
            OmmConsumer consumer = EmaFactory.createOmmConsumer(EmaFactory.createOmmConsumerConfig()); <------ error here 
.....
        } catch (Exception excp) {
            System.out.println(excp.getMessage());
        }
    }
}


I followed pre-requirements:
- copied the RDMFieldDictionary and enumtype.def from EMA /etc directory.
- added the Comodo certificate authority to the keystore (the default Certificate Authority Keystore location in the Java directory)

Here is output logs:

Contributing to Refinitiv Contributions Channel
Starting encrypted connection...
2022-09-28 16:16:19.996 WARNING com.refinitiv.ema.access.ChannelCallbackClient reactorChannelEventCallback 
loggerMsg
    ClientName: ChannelCallbackClient
    Severity: Warning
    Text:    Received ChannelDownReconnecting event on channel Channel_1
RsslReactor @58ce9668
RsslChannel @172b013
Error Id 0
Internal sysError 0
Error Location null
Error text Tunnel Channel Closed
loggerMsgEnd


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Best Answer

  • Jirapongse
    Jirapongse
    Answer ✓

    @ihor.kiulian

    Sorry for the issue you are facing, let me see if I can help you in resolving this.

    Please add the following configuration (EncryptedProtocolType) to the RCC channel.

    <ChannelGroup>
        <ChannelList>
            <Channel>
                <Name value="Channel_1"/>
                <ChannelType value="ChannelType::RSSL_ENCRYPTED"/>           
                <CompressionType value="CompressionType::None"/>
                <GuaranteedOutputBuffers value="5000"/>           
                <ConnectionPingTimeout value="30000"/>
                <EncryptedProtocolType value="EncryptedProtocolType::RSSL_SOCKET"/>           
                <TcpNodelay value="1"/>           
                <Host value="contrib1-emea1.uat.platform.refinitiv.com"/>
                <Port value="443"/>
            </Channel>
        </ChannelList>
    </ChannelGroup>

    I hope that this information is of help

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