Metadata Extraction

Hi All,

I wanted to set property of a metadata node in /content/dam/emailWorkflow64/asset.jpg/jcr:content/metadata (for example) using workflow. I have made a custom workflow process step and executed it manually inside a workflow model. Its not working please help.

I have given payload for workflow model : /content/dam/emailWorkflow64/asset.jpg/jcr:content/metadata

Here is code snippet :

import javax.jcr.Node;

import javax.jcr.PathNotFoundException;

import javax.jcr.RepositoryException;

import javax.jcr.Session;

import org.apache.sling.api.resource.ResourceResolverFactory;

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

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

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import com.day.cq.workflow.WorkflowException;

import com.day.cq.workflow.WorkflowSession;

import com.day.cq.workflow.exec.WorkItem;

import com.day.cq.workflow.exec.WorkflowData;

import com.day.cq.workflow.exec.WorkflowProcess;

import com.day.cq.workflow.metadata.MetaDataMap;

@Component(name="Metadata Extraction", service=WorkflowProcess.class,immediate=true,

  property= {

  "process.label=Metadata Extraction",

  "Constants.SERVICE_DESCRIPTION=Service for extracting metadata",

  "Constants.SERVICE_VENDORS=Rishabh_Inc"

  })

public class MetadataExtraction implements WorkflowProcess

{

  private  static final Logger log=LoggerFactory.getLogger(MetadataExtraction.class );

  @Reference

  private ResourceResolverFactory resourceResolverFactory;

  @Override

  public void execute(WorkItem workItem, WorkflowSession workFlowSession, MetaDataMap metaDataMap) throws WorkflowException

  {

       log.info("inside execute method");

       Node metadata=null;

       Session session=null;

       String filepath="";

       String payloadPath="";

       try {

            session=workFlowSession.getSession();

            WorkflowData workflowData=workItem.getWorkflowData();

            if(session!=null)

                 {

                 payloadPath=workflowData.getPayload().toString();

                 log.info("payload is:"+payloadPath);

                 metadata=session.getNode(payloadPath);

                 metadata.setProperty("name", "Upload1");

                 session.save();

                 }

            }

       catch (PathNotFoundException e)

          {

            log.info("caught path not found exception");

            e.printStackTrace();

           }

       catch (RepositoryException e)

          {

            log.info("caught in repository exception");

            e.printStackTrace();

            }

  }

}

I am using AEM v6.3.

Thanks in advance.