javax.jcr.AccessDeniedException: OakAccess0000: Access denied

Are you trying to perform some JCR Operations from a WCMUsePojo class? Looks like something is happening in an HTL component. 

As a matter of fact, I am.  I check to see if there is a sling:resourceType associated with the component and if there is NOT, I add one.

Once I'm done I call save.

Is this not allowed?

I'm not sure what I'm missing here .... this is what I have so far

    @Reference
    private ResourceResolverFactory factory;
    private ResourceResolver resourceResolverWriter;
    private static Session adminSession;
    
    /*
     * data structure to store attributes for each column
     */
    private ArrayList<Map<String, String>> columns;

    /*
     * should flyIn css classes be added to the columns
     */
    private boolean animateFlyIn;

    @SuppressWarnings("deprecation")
    @Override
    public void activate() throws Exception {

        try {
            Map<String, Object> param = new HashMap<String, Object>();        
            param.put(ResourceResolverFactory.SUBSERVICE, "writeService");
            resourceResolverWriter = factory.getServiceResourceResolver(param);            
            adminSession = resourceResolverWriter.adaptTo(Session.class);
            

factory is ALWAYS nulll .... I'm a little lost on how to resolve.

Thanks,

-Dean

Dean, i will look into this tomorrow and get it wirking!

Here is another example of things that I've tried ....

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

public interface ColumnControlService {

    public void generateColumns(int columns, Node currentNode);
    
}

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

@Component
@Service
public class ColumnControlServiceImpl implements ColumnControlService {

    private final Logger logger = LoggerFactory.getLogger(ColumnControlServiceImpl.class);

    @Reference
    private ResourceResolverFactory factory;
    private ResourceResolver resourceResolverWriter;
    private static Session adminSession;

    public void generateColumns(int columns, Node currentNode) {

        try {
            Map<String, Object> param = new HashMap<String, Object>();        
            param.put(ResourceResolverFactory.SUBSERVICE, "writeService");
            resourceResolverWriter = factory.getServiceResourceResolver(param);            
            adminSession = resourceResolverWriter.adaptTo(Session.class);

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

public class ColumnControl extends WCMUsePojo {

    private final Logger logger = LoggerFactory.getLogger(ColumnControl.class);

    @Reference
    private ColumnControlService ccs;

    @Override
    public void activate() throws Exception {

        try {
            Node currentNode = getResource().adaptTo(Node.class);
            ccs.generateColumns(columns.size(), currentNode);

The css reference in the line above always returns NULL.

I am looking into this code right now - something seems strange. 

Hi Dean,

Unless I'm mistaken, simply extending WCMUsePojo does not allow you the ability to use @Reference annotations to pull other services/components into your class. Your class would either need to be a @Service or @Component itself in order to have this luxury.

One thing you COULD do is get a reference through the SlingScriptHelper[1] interface, like so:

package com.your.pkg.name; import com.adobe.cq.sightly.WCMUsePojo; import org.apache.sling.api.resource.Resource; import org.apache.sling.api.resource.ResourceResolver; import org.apache.sling.api.resource.ResourceResolverFactory; import org.apache.sling.api.resource.ResourceUtil; import org.apache.sling.api.resource.ValueMap; import org.apache.sling.api.scripting.SlingScriptHelper; import java.util.HashMap; import java.util.Map; /** * Created by Greg Wells on 2/7/17. */ public class TestService extends WCMUsePojo { @Override public void activate() throws Exception { // get a sling script helper, this is available globally through the WCMUsePojo class SlingScriptHelper sling = getSlingScriptHelper(); // get a reference to the ResourceResolverFactory ResourceResolverFactory resourceResolverFactory = sling.getService(ResourceResolverFactory.class); // define your service params Map<String, Object> serviceParams = new HashMap<>(); serviceParams.put(ResourceResolverFactory.SUBSERVICE, "writeService"); // get your service resolver in a try-with-resources block try (ResourceResolver serviceResolver = resourceResolverFactory.getServiceResourceResolver(serviceParams)) { // do whatever you need with your service resolver here... Resource resource = serviceResolver.getResource("/some/path/to/a/resource"); ValueMap valueMap = ResourceUtil.getValueMap(resource); if (valueMap.containsKey("customPropName")) { String customPropValue = valueMap.get("customPropName", String.class); // do something with this String value... } } } }

Let me know if any of that doesn't make sense, hope this helps!

EDIT: One caveat to doing this, you may run into a situation like the one I posted about earlier today[2]... If that is the case, you may not be able to use the SlingScriptHelper as its BundleContext[3] is different than your own bundle, most likely. The following should work instead:

package com.your.pkg.name; import com.adobe.cq.sightly.WCMUsePojo; import org.apache.sling.api.resource.Resource; import org.apache.sling.api.resource.ResourceResolver; import org.apache.sling.api.resource.ResourceResolverFactory; import org.apache.sling.api.resource.ResourceUtil; import org.apache.sling.api.resource.ValueMap; import org.osgi.framework.BundleContext; import org.osgi.framework.FrameworkUtil; import org.osgi.framework.ServiceReference; import java.util.HashMap; import java.util.Map; /** * Created by Greg Wells on 2/7/17. */ public class TestService extends WCMUsePojo { @Override public void activate() throws Exception { // get the ResourceResolverFactory directly from your own bundle. BundleContext bundleContext = FrameworkUtil.getBundle(TestService.class).getBundleContext(); ServiceReference factoryRef = bundleContext.getServiceReference(ResourceResolverFactory.class.getName()); ResourceResolverFactory resourceResolverFactory = (ResourceResolverFactory) bundleContext.getService(factoryRef); // define your service params Map<String, Object> serviceParams = new HashMap<>(); serviceParams.put(ResourceResolverFactory.SUBSERVICE, "writeService"); // get your service resolver in a try-with-resources block try (ResourceResolver serviceResolver = resourceResolverFactory.getServiceResourceResolver(serviceParams)) { // do whatever you need with your service resolver here... Resource resource = serviceResolver.getResource("/some/path/to/a/resource"); ValueMap valueMap = ResourceUtil.getValueMap(resource); if (valueMap.containsKey("customPropName")) { String customPropValue = valueMap.get("customPropName", String.class); // do something with this String value... } } } }

[1] https://sling.apache.org/apidocs/sling8/org/apache/sling/api/scripting/SlingScriptHelper.html
[2] http://help-forums.adobe.com/content/adobeforums/en/experience-manager-forum/adobe-experience-manager.topic.html/forum__lj10-platform_versionae.html
[3] http://www.knopflerfish.org/releases/5.2.0/docs/javadoc/org/osgi/framework/BundleContext.html

Excellent post Greg - @Reference cannot be used in class that extends WCMUsePojo  - see the article i referenced that shows How TO get an instance of an AEM service from WCMUsePojo.