AEM 6.3: Felix SCR Annotations Deprecated - Replacement for @SlingFilter? | Community
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timlwhite
timlwhite
Level 2
May 24, 2017
Solved

AEM 6.3: Felix SCR Annotations Deprecated - Replacement for @SlingFilter?

  • May 24, 2017
  • 16 replies
  • 24265 views

Hello, it appears that the Felix SCR annotations have been deprecated in AEM 6.3.  This is not reflected on the Sling website or documentation as far as I can tell, but is appearing that way when we compile against the 6.3 uberjar.

In fact, the latest AEM Maven Archetype does not include the Felix SCR dependency at all.

I see this blog post from last year that covers a lot of conversion questions.

And this very recent one from Feike.

The OSGi 6 method for registering configuration properties using a separate interface class is fairly convoluted, and thinly documented, but with enough time and money I am sure we can figure it out.

However, there does not seem to be mention in either article of what is replacing the @SlingFilter annotation, which is mentioned as the recommended approach even in fairly recent articles.

All our classes that use the @SlingFilter annotation no longer work (they are throwing ArrayIndexOutOfBounds exceptions), even keeping the Felix SCR dependency, and updating it to the latest version.

Is there documentation somewhere of what is replacing the @SlingFilter annotation?

Is there a plan for a more complete document describing the recommended migration path, and changes to the product that cause existing @SlingFilter usage not to work?

Thanks!

Tim

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    Best answer by Feike_Visser1

    when using non-String types make sure to use the correct data-type.

    Example here for the service-ranking and using :Integer

    https://github.com/heervisscher/htl-examples/blob/master/core/src/main/java/com/adobe/examples/htl/core/bindings/CustomBindingProvider.java

    16 replies

    Feike_Visser1
    Adobe Employee
    Feike_Visser1Adobe Employee
    Adobe Employee
    May 25, 2017

    I am not aware that the Felix annotations are deprecated in AEM6.3.

    To your question on @SlingFilter, this is same like @SlingServlet

    There isn't an equivalent you can use. You need to specify the properties like in this sample for a servlet.

    https://github.com/heervisscher/htl-examples/blob/master/core/src/main/java/com/adobe/examples/htl/core/servlets/SimpleServlet.java

    Feike_Visser1
    Adobe Employee
    Feike_Visser1Adobe EmployeeAccepted solution
    Adobe Employee
    May 25, 2017

    when using non-String types make sure to use the correct data-type.

    Example here for the service-ranking and using :Integer

    https://github.com/heervisscher/htl-examples/blob/master/core/src/main/java/com/adobe/examples/htl/core/bindings/CustomBindingProvider.java

    timlwhite
    timlwhiteAuthor
    Level 2
    May 25, 2017

    Yes, most of the Felix annotations show deprecated when compiling against the 6.3 UberJar.  I'll try setting things up with @Component. Thanks!

      Feike_Visser1
      Adobe Employee
      Feike_Visser1Adobe Employee
      Adobe Employee
      May 29, 2017

      See also this article by Nate: http://www.nateyolles.com/blog/2017/05/osgi-declarative-services-annotations-in-aem

        J
        JeroenDruwe
        Level 4
        February 10, 2018

        I use OSGI R6 annotation based approach:

        @Component(service = Filter.class, property = {
        EngineConstants.SLING_FILTER_SCOPE + "=" + EngineConstants.FILTER_SCOPE_REQUEST,
        Constants.SERVICE_RANKING + ":Integer=" + -10002
        })
        public class MyCustomFilter implements Filter {
        Feike_Visser1
        Adobe Employee
        Feike_Visser1Adobe Employee
        Adobe Employee
        February 10, 2018

        Here another sample that I made: htl-examples/DatalayerFilter.java at master · heervisscher/htl-examples · GitHub

        C
        cmr96960454
        Level 2
        April 17, 2018

        import com.icfolson.aem.library.core.services.OsgiConfiguration

        import com.ingredion.aem.core.services.EloquaService

        import com.ingredion.aem.core.services.EloquaServiceUS

        import com.ingredion.aem.core.services.SalesforceService

        import org.apache.felix.scr.annotations.Activate
        import org.apache.felix.scr.annotations.Component
        import org.apache.felix.scr.annotations.Modified
        import org.apache.felix.scr.annotations.Property
        import org.apache.felix.scr.annotations.Service


        @Component(label = "Ingredion Eloqua Connector Service For US", metatype = true)

        @Service(EloquaServiceUS)

        class DefaultEloquaServiceUS implements EloquaServiceUS

        {

           private static final String DEFAULT_URL = "https://s2141011786.t.eloqua.com/e/f2"
           private static final String DEFAULT_ELQ_SITE_ID = "2141011786"

           @Property(label = "Eloqua URL", description = "Eloqua Url",

          value = DefaultEloquaServiceUS.DEFAULT_URL)

           private static final String URL = "url"

           @Property(label = "Eloqua Site ID", description = "This ID will tell Eloqua that the request is coming from Ingredion",

          value = DefaultEloquaServiceUS.DEFAULT_ELQ_SITE_ID)

           private static final String ELQ_SITE_ID = "elqSiteId"

           String url

           String elqSiteId

           @Activate
          @Modified
           void activate(Map<String, Object> properties) {

           def configuration = new OsgiConfiguration(properties)

           url = configuration.getAsString(URL, DEFAULT_URL)

           elqSiteId = configuration.getAsString(ELQ_SITE_ID, DEFAULT_ELQ_SITE_ID)

          }

        }

        This is my code and this was written in groovy.

        Now we are upgrading to aem 6.3 from 6.1.

        @Activate, @Modified, @Component, @Service is dericated.

        So i replaced with osgi annotations.

        But not sure how to replace below lines.

        @Property(label = "Eloqua URL", description = "Eloqua Url",

          value = DefaultEloquaServiceUS.DEFAULT_URL)

           private static final String URL = "url"

          

        Can anyone suggest me how to replace @Property?

        Feike_Visser1
        Adobe Employee
        Feike_Visser1Adobe Employee
        Adobe Employee
        April 17, 2018

        here an example htl-examples/MyServiceConfiguration.java at master · heervisscher/htl-examples · GitHub

        V
        vijayselvas1
        Level 2
        July 30, 2018

        Hi,

        Did you get the replacement for @Property? Also what is the replacement for @Service in osgi? Can you share the exact import here. I'm struck with the two issues. Thanks in advance.

        Regards,

        Vijay

        priydarshnas479
        priydarshnas479
        Level 2
        August 6, 2018

        did you find replacement for @Property ?

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