Passaggio processo personalizzato

È stato implementato un passaggio di processo personalizzato per compilare le variabili del flusso di lavoro Array List. Se non conosci la creazione del bundle OSGi, segui queste istruzioni

Il codice nel passaggio del processo personalizzato esegue le seguenti operazioni

• Esegui una query per tutti gli allegati del modulo adattivo nella cartella payload. Il nome della cartella viene passato come argomento del processo al passaggio del processo.

• Popolare la variabile del flusso di lavoro listOfDocuments

• Popolare la variabile del flusso di lavoro attachmentNames

• Imposta il valore della variabile del flusso di lavoro (no_of_attachments)

 package com.aemforms.formattachments.core;

import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;
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 + "=PopulateListOfDocuments",
        "process.label" + "=PopulateListOfDocuments"
})

public class PopulateListOfDocuments implements WorkflowProcess {

        private static final Logger log = LoggerFactory.getLogger(PopulateListOfDocuments.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());
                int no_of_attachments = result.getHits().size();
                Document[] listOfDocuments = new Document[no_of_attachments];
                String[] attachmentNames = new String[no_of_attachments];
                int i = 0;
                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();
                                listOfDocuments[i] = new Document(attachmentStream);
                                attachmentNames[i] = new String(hit.getTitle());
                                log.debug("Added " + hit.getTitle() + "to the list");
                                i++;
                        } catch (Exception e) {
                                log.error("Unable to obtain attachment", e);
                        }
                }

                metaDataMap.put("no_of_attachments", no_of_attachments);
                metaDataMap.put("listOfDocuments", listOfDocuments);
                metaDataMap.put("attachmentNames", attachmentNames);

                log.debug("Updated workflow");
        }

}

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