While Calling Service Inside HTL I am getting error

[subnaik]

Dear All,

When I am trying to call my service in my HTL like below then I am getting below error

org/apache/sling/scripting/sightly/apps/page/body_html.java:
Line 79, column 4095 : ai.core.service.OneTrustService cannot be resolved to a type

My Code is Below

************** SERVICE CLASS  ***************

package ai.core.service;

public interface OneTrustService {

/**

* @Return OneTrust Id

*/

public String getOneTrustId();

/**

*

* @Return Google Tag Manager (gtm) Id

*/

String getGtmId();

}

************** SERVICE IMPL CLASS  ***************

package ai.core.service;

import org.osgi.service.component.annotations.Activate;

import org.osgi.service.component.annotations.Component;

import org.osgi.service.component.annotations.Modified;

import org.osgi.service.metatype.annotations.Designate;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import ai.core.config.OneTrustConfig;

@component(service = OneTrustService.class, immediate = true)

@Designate(ocd = OneTrustConfig.class)

public class OneTrustServiceImpl implements OneTrustService {

private String oneTrustId;

private String gtmId;

private static final Logger LOGGER = LoggerFactory.getLogger(OneTrustServiceImpl.class);

/**

* Method used to init the service when activated

*

* @Param OneTrustConfig serverConfiguration The parameters activated for the component

*/

@activate

protected void activate(final OneTrustConfig serverConfiguration) {

this.init(serverConfiguration);

}

/**

* Method used to init the service when updated

*

* @Param OneTrustConfig serverConfiguration The parameters activated for the component

*/

@MODIFIED

protected void update(final OneTrustConfig serverConfiguration) {

this.init(serverConfiguration);

}

/**

* This method assigns the configuration when the component is activated and updated.

*

* @Param OneTrustConfig serverConfiguration The configuration set for the component

*/

private void init(final OneTrustConfig serverConfiguration) {

this.oneTrustId = serverConfiguration.getOneTrustId();

LOGGER.info("oneTrustId value ==== "+ oneTrustId);

this.gtmId = serverConfiguration.getGtmId();

LOGGER.info("gtmId value ==== "+ gtmId);

}

@Override

public String getOneTrustId() {

LOGGER.info("oneTrustId value INSIDE getOneTrustId ==== "+ oneTrustId);

return oneTrustId;

}

@Override

public String getGtmId() {

LOGGER.info("oneTrustId value INSIDE getGtmId ==== "+ gtmId);

return gtmId;

}

}

************** CONFIG CLASS  ***************

package ai.core.models;

import org.osgi.service.metatype.annotations.AttributeDefinition;

import org.osgi.service.metatype.annotations.ObjectClassDefinition;

/**

 *

 * This interface represents the configuration for OneTrust

 *

 */

@ObjectClassDefinition(name = "Talent Marketing OneTrust Config", description = "Talent Marketing OneTrust Config")

public @interface OneTrustConfig {

/**

* @Return The OneTrust Id

*/

@AttributeDefinition(name = "OneTrust ID", description = "OneTrust ID for Cookie Banner")

String getOneTrustId();

/**

*

* @Return The Google Tag Manager (GTM) Id

*/

@AttributeDefinition(name = "GTM ID", description = "GTM ID For Cookie Banner")

String getGtmId();

}

***************** HTL CODE *******************

<sly data-sly-use.templatedContainer="com.day.cq.wcm.foundation.TemplatedContainer"

     data-sly-repeat.child="${templatedContainer.structureResources}"

     data-sly-resource="${child.path @ resourceType=child.resourceType, decorationTagName='div'}"></sly>

<!--<p data-sly-use.gtmonetrustid="ai.marcel.contentadmin.core.service.OneTrustService">

   ${gtmonetrustid.gtmId}

</p> -->

<!-- Google Tag Manager (noscript) -->

<noscript>

    <iframe src="https://www.googletagmanager.com/ns.html?id=GTM-TF5QLQDS" height="0" width="0"

            style="display:none;visibility:hidden" title="Google tag manager">

    </iframe>

</noscript>

<!-- End Google Tag Manager (noscript) -->

*******************************

My server config file value is below

Can anyone please help me here that why I am not getting the osgi config value in my HTL ?

Thanks

Lakhman

[arunpatidar · Accepted solution]

Hi @subnaik 

To call an OSGi service from a Sling Model and use that Sling Model in HTL in AEM, follow these steps:

1. Create an OSGi Service:

   • Define an interface and implement the service.
   • Register the service with the OSGi framework.

2. Create a Sling Model:

   • Inject the OSGi service into the Sling Model using the @OSGiService annotation.
   • Expose the model’s data through methods that use the service.

3. Use the Sling Model in HTL:

   • Adapt the resource to the Sling Model using the data-sly-use directive.
   • Render the model’s data in HTL using expressions.

[subnaik]

Is there a way that we can directly call the below value Onetrust Id and GTM Id directly in HTL ?

[narendiran_ravi]

As Arun suggested, please inject your service in the sling model and get the values in HTL. If these values change based on the site then you can use context-aware configuration. Using ${caconfig['x.y.z.ConfigSample'].stringParam}, you can easily get the values in sightly without creating any helperModel. Refer https://sling.apache.org/documentation/bundles/context-aware-configuration/context-aware-configurati...

[kautuk_sahni]

@subnaik Did you find the suggestions helpful? Please let us know if you require more information. Otherwise, please mark the answer as correct for posterity. If you've discovered a solution yourself, we would appreciate it if you could share it with the community. Thank you!