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35 7 9 12

How to restrict the Elektron EMA API level logging in my Java class

@Wasin Waeosri @Nipat Kunvutipongsak

elektronrefinitiv-realtimeelektron-sdkema-apirrtelektron-message-apilogging
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Hello @Chaitanya.Vishnubhotla,

Thank you for your participation in the forum. Is the reply below satisfactory in resolving your query?

If yes please click the 'Accept' text next to the reply. This will guide all community members who have a similar question. Otherwise please post again offering further insight into your question.

Thanks,

AHS

Hi @Chaitanya.Vishnubhotla,

Thank you for your participation in the forum. Is the reply below satisfactory in resolving your query?

If yes please click the 'Accept' text next to the reply. This will guide all community members who have a similar question. Otherwise please post again offering further insight into your question.

Thanks,

AHS

Hello @Chaitanya.Vishnubhotla,

Thank you for your participation in the forum. Is the reply below satisfactory in resolving your query?

If yes please click the 'Accept' text next to the reply. This will guide all community members who have a similar question. Otherwise please post again offering further insight into your question.

Thanks,

AHS

Please be informed that a reply has been verified as correct in answering the question, and has been marked as such.

Thanks,

AHS

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Accepted
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Hi @Chaitanya.Vishnubhotla

As explained in the EMA Developers guide (6.1 - EMA Logger Usage), EMA uses the SLF4J logging API. Thanks to SLF4J, you can have the underlying logging back-end that you want. For example: The Java standard logger utility package (java.util.logging), log4j, or other logger adapters which implement the SLF4J logging interface.

In your case, as you probably did not set any adapter, SLF4J prints messages on the console. A quick and easy solution for you would be to use the JDK build-in logging utility by setting it on the java command line. As an example: If you use the example100__MarketPrice__Streaming.bat file to run your application, you could add “-Djava.util.logging.config.file=.\logging.properties” as a new parameter of the java command (last line of the .bat file) and provide “logging.properties” configuration file (see below) along with your application.

Here is an example of the java command with all parameters:

%JAVA_BIN% -Djava.util.logging.config.file=.\logging.properties
-cp %CLASSPATH% com.thomsonreuters.ema.examples.training.consumer.series100.example100__MarketPrice__Streaming.Consumer

Here is an example of logging.properties file with console and file logs deactivated:

#This file contains log configuration for java logging API.
# Level mapping between jdk and slf4j logging
# jdk.util.logging     SLF4J 
# FINEST  -> ALL
# FINEST   -> DEBUG
# FINEST   -> TRACE
# INFO    -> INFO
# WARNING -> WARN
# SEVERE  -> ERROR
.level=ALL
#handlers=java.util.logging.FileHandler, java.util.logging.ConsoleHandler
#handlers=java.util.logging.FileHandler
java.util.logging.ConsoleHandler.level=WARNING
java.util.logging.ConsoleHandler.formatter=java.util.logging.SimpleFormatter
java.util.logging.FileHandler.level=WARNING
java.util.logging.FileHandler.pattern=./emaj.log
java.util.logging.FileHandler.limit=50000000
java.util.logging.FileHandler.count=20
java.util.logging.FileHandler.formatter=java.util.logging.SimpleFormatter
# Format timestamp as date/time with millisecond
java.util.logging.SimpleFormatter.format=%1$tY-%1$tm-%1$td %1$tH:%1$tM:%1$tS.%1$tL %4$-7s %2$s %n%5$s
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Hi @Chaitanya.Vishnubhotla

Can you please expand on your requirement - so that we can provide the most relevant answer? It is not currently entirely clear what exactly you want to achieve.

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Upvotes
35 7 9 12

Hi @Umer Nalla,

We are developing our own application based on the example given in program

com.thomsonreuters.ema.examples.training.consumer.series100.example102__MarketPrice__Snapshot

consumer = EmaFactory.createOmmConsumer(config.host(host+":"+port).username(userId));

We are doing our custom logging, but when the above statement in italics and bold is encountered, EMA API level logging is being logged over the console as below

May 02, 2017 3:08:06 PM com.thomsonreuters.ema.access.ConfigErrorTracker log

INFO: loggerMsg

ClientName: EmaConfig

Severity: Info

Text: reading configuration file [EmaConfig.xml] from [C:\Users\cvishnu\workspace\prreu]

loggerMsgEnd

May 02, 2017 3:08:06 PM com.thomsonreuters.ema.access.ChannelCallbackClient reactorChannelEventCallback

INFO: loggerMsg

ClientName: ChannelCallbackClient

Severity: Info

Text: Received ChannelUp event on channel Channel_1

Instance Name Consumer_1_1

Component Version ads3.0.6.L1.linux.tis.rrg 64-bit

loggerMsgEnd

We want to restrict this EMA API level logging, that is we don't want to get this logging appear.

Request you to please help us here

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@Chaitanya.Vishnubhotla, I'm going to delete your previous reply, because it is redundant.

Upvotes
25.3k 87 12 25

Hi @Chaitanya.Vishnubhotla

As mentioned in the EMA Java Dev Guide, it uses SLF4J logging API and therefore you could change the Logger level via a logging.properties file to WARNING or ERROR to avoid seeing INFO level outputs - or redirect the output a file instead.

There is a sample logging.properties file in the Ema\Src\main\resource folder which you could copy, amend and use for your application.

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