Adobe Experience Manager Sites & More

GK-AEM · 10/15/15

Hi All,

I am new to cq and i tried example given in adobe forum "By using Sling API,getting the information of page node information from JCR".But i am trying to get the reference of that component into JSP ,null reference is returning.Below are the code snippets.

Interface:

package com.slingapp;

public interface Query
{

public String getJCRData(String location) ;

}

Implemented Class:

package com.slingapp;

import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.Reference;
import org.apache.felix.scr.annotations.Service;
import org.apache.sling.api.resource.LoginException;
import org.apache.sling.api.resource.Resource;
import org.apache.sling.api.resource.ResourceResolver;
import org.apache.sling.api.resource.ResourceResolverFactory;
import org.apache.felix.scr.annotations.Activate;
import org.apache.felix.scr.annotations.Deactivate;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.day.cq.wcm.api.Page;

@Component(immediate=true)
@Service

public class QueryImp implements Query {

   //Inject a Sling ResourceResolverFactory
   private static final Logger logger = LoggerFactory
           .getLogger(QueryImp.class);
   @Reference
   private ResourceResolverFactory resolverFactory;
   String title=null;
   public String getJCRData(String location) {
       try {
           ResourceResolver resResolver = resolverFactory.getAdministrativeResourceResolver(null);
           Resource resource=resResolver.getResource("/content/geometrixx/en/services");
           Page page=resource.adaptTo(Page.class);
           title=page.getTitle();
       } catch (LoginException e) {

       }
       return title;
   }
   @Activate
protected void activate() {
       logger.info("service activated" );
}

@Deactivate
protected void deactivate() {
   logger.info ("service deactivated");
}

}

Component Page

<html>
<%@include file="/libs/foundation/global.jsp"%>
//<%@page import="com.slingapp.Query,com.slingapp.QueryImp"%>
<%@taglib prefix="cq" uri="http://www.day.com/taglibs/cq/1.0" %>
<h1>TemplateSling Page</h1>
<%
com.slingapp.Query wfService = sling.getService(com.slingapp.Query.class);

//I have tried as com.slingapp.Query wfService = sling.getService(com.slingapp.QueryImp.class); but no luck
%>
<%=wfService.hashCode()%>
</html>

Can some help me in fixing this issue

Thanks,

Kishore