Étape de processus personnalisée

Une étape de processus personnalisée a été mise en oeuvre pour créer le fichier zip contenant les pièces jointes du formulaire. Si vous ne connaissez pas la création d’un lot OSGi, suivez ces instructions

Le code de l’étape de processus personnalisé effectue les opérations suivantes :

  • Requête pour toutes les pièces jointes de formulaire adaptatif sous le dossier de charge utile. Le nom du dossier est transmis en tant qu’argument de processus à l’étape de processus.

  • Créez un fichier zip contenant les pièces jointes du formulaire et stockez-le sous le dossier de charge utile.

  • Définir la valeur de la variable de workflow (no_of_attachments)

 package com.aemforms.formattachments.core;
import javax.jcr.Binary;
import javax.jcr.Node;
import javax.jcr.RepositoryException;
import javax.jcr.Session;
import javax.jcr.ValueFactory;

import javax.jcr.Node;
import javax.jcr.Session;

import org.osgi.framework.Constants;
import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.Reference;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.adobe.aemfd.docmanager.Document;
import com.adobe.granite.workflow.WorkflowException;
import com.adobe.granite.workflow.WorkflowSession;
import com.adobe.granite.workflow.exec.WorkItem;
import com.adobe.granite.workflow.exec.WorkflowProcess;
import com.adobe.granite.workflow.metadata.MetaDataMap;
import com.day.cq.search.PredicateGroup;
import com.day.cq.search.Query;
import com.day.cq.search.QueryBuilder;
import com.day.cq.search.result.Hit
import com.day.cq.search.result.SearchResult;


@Component(property = {
        Constants.SERVICE_DESCRIPTION + "=Zip form attachments",
        Constants.SERVICE_VENDOR + "=Adobe Systems",
        "process.label" + "=Zip form attachments"
})


public class ZipFormAttachments implements WorkflowProcess {

	 private static final Logger log = LoggerFactory.getLogger(ZipFormAttachments.class);
     @Reference
     QueryBuilder queryBuilder;

     @Override
     public void execute(WorkItem workItem, WorkflowSession workflowSession, MetaDataMap processArguments) throws WorkflowException
     {
             String payloadPath = workItem.getWorkflowData().getPayload().toString();
             log.debug("The payload path  is" + payloadPath);
             MetaDataMap metaDataMap = workItem.getWorkflow().getWorkflowData().getMetaDataMap();
             Session session = workflowSession.adaptTo(Session.class);
             Map < String, String > map = new HashMap < String, String > ();
             map.put("path", workItem.getWorkflowData().getPayload().toString() + "/" + processArguments.get("PROCESS_ARGS", "string").toString());
             map.put("type", "nt:file");
             Query query = queryBuilder.createQuery(PredicateGroup.create(map), workflowSession.adaptTo(Session.class));
             query.setStart(0);
             query.setHitsPerPage(20);
             SearchResult result = query.getResult();
             log.debug("Get result hits " + result.getHits().size());
             ByteArrayOutputStream baos = new ByteArrayOutputStream();
             ZipOutputStream zipOut = new ZipOutputStream(baos);
             int no_of_attachments = result.getHits().size();
             for (Hit hit: result.getHits())
             {
                     try
                     {
                             String attachmentPath = hit.getPath();
                             log.debug("The hit path is" + hit.getPath());
                             Node attachmentNode = session.getNode(attachmentPath + "/jcr:content");
                             InputStream attachmentStream = attachmentNode.getProperty("jcr:data").getBinary().getStream();
                             ByteArrayOutputStream buffer = new ByteArrayOutputStream();
                             int nRead;
                             byte[] data = new byte[1024];
                             while ((nRead = attachmentStream.read(data, 0, data.length)) != -1)
                             {
                                     buffer.write(data, 0, nRead);
                             }

                             buffer.flush();
                             byte[] byteArray = buffer.toByteArray();
                             ZipEntry zipEntry = new ZipEntry(hit.getTitle());
                             zipOut.putNextEntry(zipEntry);
                             zipOut.write(byteArray);
                             zipOut.closeEntry();

                     } 
                     catch (Exception e)
                     {
                             log.debug("The error message is " + e.getMessage());
                     }
             }
             try
             {
                    zipOut.close();
                    Node payloadNode = session.getNode(payloadPath);
                    Node zippedFileNode =  payloadNode.addNode("zipped_attachments.zip", "nt:file");
                    javax.jcr.Node resNode = zippedFileNode.addNode("jcr:content", "nt:resource");
        		
        			ValueFactory valueFactory = session.getValueFactory();
        			Document zippedDocument = new Document(baos.toByteArray());

        			Binary contentValue = valueFactory.createBinary(zippedDocument.getInputStream());
        			metaDataMap.put("no_of_attachments", no_of_attachments);

                    workflowSession.updateWorkflowData(workItem.getWorkflow(), workItem.getWorkflow().getWorkflowData());
                    log.debug("Updated workflow");
        			resNode.setProperty("jcr:data", contentValue);
        			session.save();
        			zippedDocument.close();



             }
             catch (IOException | RepositoryException e)
             {
                     
                     log.error("Error in closing zipout", e);
             }
             
            
             

     }

}
REMARQUE

Vérifiez que vous disposez d’une variable appelée no_of_attachments de type Double dans votre workflow pour que ce code fonctionne.

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