Btukfyl

I'm trying to take a value from spring profile set in web.xml. I've already encountered a question that solves my problem but the implementation of the solution to the problem does not seem to be working. That's are my source code:

web.xml:

<context-param>

    <param-name>spring.profiles.default</param-name>

    <param-value>local-jboss</param-value>

</context-param>

logback.xml:

<insertFromJNDI env-entry-name="java:comp/env/spring.profiles.default" as="spring.profiles.default" />



<appender name="STASH" class="net.logstash.logback.appender.LogstashTcpSocketAppender">

    <destination>x.x.x.x:yyyy</destination>

    <encoder class="net.logstash.logback.encoder.LoggingEventCompositeJsonEncoder">

        <providers>

            <mdc /> <!-- MDC variables on the Thread will be written as JSON fields -->

            <context /> <!-- Outputs entries from logback's context -->

            <version /> <!-- Logstash json format version, the @version field in the output -->

            <logLevel />

            <loggerName />

            <pattern>

                <pattern>

                {

                    "APP": "MyApp",

                    "PROFILE": "${spring.profiles.default}"

                }

                </pattern>

            </pattern>

            <threadName />

            <message />

            <logstashMarkers /> <!-- Useful so we can add extra information for specific log lines as Markers -->

            <arguments /> <!-- or through StructuredArguments -->

            <stackTrace />

        </providers>

    </encoder>

</appender>

Does anyone know how I get the value from my web.xml and put in logback.xml?

1st Solution :

If you are on spring 3.1+ then those context params will available as env variable and in logback you can easily refer them like below :

<springProperty scope="context" name="fluentHost" source="myapp.fluentd.host"

        defaultValue="localhost"/>

source is the name of your key. Further Documentation.

2nd Solution :
You can use this as well where we will define context-param as spring property then refer the same in logback as 1st solution above.

@SpringBootApplication

class DemoApp extends SpringBootServletInitializer {

    private ServletContext servletContext;

    public static void main(String args){SpringApplication.run(DemoApp.class,args);}

    @Override

    protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {

        builder = builder.properties("test.property:" + servletContext.getInitParameter("test.property"));

        return builder.sources(DemoApp.class);

    }

    @Override

    public void onStartup(ServletContext servletContext) throws ServletException {

        this.servletContext = servletContext;

        super.onStartup(servletContext);

    }

}

Hope this helps.