Helloworld Sample Instructions: busy port about msf4j

[johnbendi]

What's the status of this issue. I'm currently having this issue as a newbie.

[isamauny]

Please see this blog for easy answer: https://teampmblog.wordpress.com/2016/02/08/developing-java-microservices-with-wso2/-

[ayomawdb]

Corrected link (removing the additional hyphen):
https://teampmblog.wordpress.com/2016/02/08/developing-java-microservices-with-wso2/

For additional details, you can also check MicroservicesRunner.java

[senakafdo]

You can use the answer from @isamauny or change the code from new MicroservicesRunner() to new MicroservicesRunner(Integer.getInteger("http.port", 8080)). That way you can pass in the port as a system property when you start up (i.e. java -Dhttp.port=8081 -jar target/stockquote-fatjar-1.1.0-SNAPSHOT.jar).

[imesh]

As @senakafdo has mentioned, it would be really useful if we can change the port using a system parameter at the runtime. I can see we have added a comment on this in MicroservicesRunner class:

https://github.com/wso2/msf4j/blob/master/core/src/main/java/org/wso2/msf4j/MicroservicesRunner.java#L63

However, we have not given instructions on how to create the transports.netty.conf file. Creating a file for overriding the port might be an overhead. Shall we re-think this, please? @afkham WDYT Thanks!

[afkham]

This works only for HTTP. For HTTPS, we may anyway require to give all the
relevant details. So what we can do it pass it as an arg to the main
method, if you are to change just the HTTP port.

On Thu, Nov 10, 2016 at 12:20 PM, Imesh Guaratne [email protected]
wrote:

As @senakafdo https://github.com/senakafdo has mentioned, it would be
really useful if we can change the port using a system parameter at the
runtime. I can see we have added a comment on this in MicroservicesRunner
class:

https://github.com/wso2/msf4j/blob/master/core/src/main/
java/org/wso2/msf4j/MicroservicesRunner.java#L63

However, we have not given instructions on how to create the
transports.netty.conf file. Creating a file for overriding the port might
be an overhead. Shall we re-think this, please? @afkham
https://github.com/afkham WDYT Thanks!

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Afkham Azeez
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[senakafdo]

Hi @afkham, @imesh, the reason why we wanted to change the port using a system property is to be able to spawn multiple instances of the same microservice from a CLI without having to recompile the code and/or build individual transport configurations for that very purpose.

[afkham]

java -jar foo.jar 9090

So, args[0]=9090

You don't have to hardcode anything.

On Thu, Nov 10, 2016 at 3:32 PM, Senaka Fernando [email protected]
wrote:

Hi @afkham https://github.com/afkham, @imesh https://github.com/imesh,
the reason why we wanted to change the port using a system property is to
be able to spawn multiple instances of the same microservice from a CLI
without having to recompile the code and/or build individual transport
configurations for that very purpose.

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Afkham Azeez
Director of Architecture; WSO2, Inc.; http://wso2.com
Member; Apache Software Foundation; http://www.apache.org/

• http://www.apache.org/*
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Lean . Enterprise . Middleware

[senakafdo]

Yes, that's the best approach.