Generar documentos de canal de impresión mediante datos enviados

import java.io.InputStream;
import org.osgi.service.component.annotations.Component;

import com.adobe.forms.common.service.ContentType;
import com.adobe.forms.common.service.DataOptions;
import com.adobe.forms.common.service.DataProvider;
import com.adobe.forms.common.service.FormsException;
import com.adobe.forms.common.service.PrefillData;

@Component(immediate = true, service = {DataProvider.class})
public class ICPrefillService implements DataProvider {

@Override
public String getServiceDescription() {
    // TODO Auto-generated method stub
    return "Prefill Service for IC Print Channel";
}

@Override
public String getServiceName() {
    // TODO Auto-generated method stub
    return "ccm-print-test";
}

@Override
public PrefillData getPrefillData(DataOptions options) throws FormsException {
    // TODO Auto-generated method stub
        PrefillData data = null;
        if (options != null && options.getExtras() != null && options.getExtras().get("data") != null) {
            InputStream is = (InputStream) options.getExtras().get("data");
            data = new PrefillData(is, options.getContentType() != null ? options.getContentType() : ContentType.JSON);
        }
        return data;
    }
}

String params = arg2.get("PROCESS_ARGS","string").toString();
    String payloadPath = workItem.getWorkflowData().getPayload().toString();
    String dataFile = params.split(",")[0];
    final String icFileName = params.split(",")[1];
    String dataFilePath = payloadPath + "/"+dataFile+"/jcr:content";
    Session session = workflowSession.adaptTo(Session.class);
    Node xmlDataNode = null;
    try {
        xmlDataNode = session.getNode(dataFilePath);
        InputStream xmlDataStream = xmlDataNode.getProperty("jcr:data").getBinary().getStream();
        JsonParser jsonParser = new JsonParser();
        BufferedReader streamReader = null;
        try {
            streamReader = new BufferedReader(new InputStreamReader(xmlDataStream, "UTF-8"));
        } catch (UnsupportedEncodingException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        StringBuilder responseStrBuilder = new StringBuilder();
        String inputStr;
        try {
            while ((inputStr = streamReader.readLine()) != null)
                responseStrBuilder.append(inputStr);
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        String submittedDataXml = responseStrBuilder.toString();
        JsonObject jsonObject = jsonParser.parse(submittedDataXml).getAsJsonObject().get("afData").getAsJsonObject()
                .get("afBoundData").getAsJsonObject().get("data").getAsJsonObject();
        logger.info("Successfully Parsed gson" + jsonObject.toString());
        InputStream targetStream = IOUtils.toInputStream(jsonObject.toString());
        //InputStream targetStream = new ByteArrayInputStream(jsonObject.toString().getBytes());

        // Node dataNode = session.getNode(formName);
        logger.info("Got resource using resource resolver"
                );
        resHelper.callWith(getResolver.getFormsServiceResolver(), new Callable<Void>() {
            @Override
            public Void call() throws Exception {
                System.out.println("The target stream is "+targetStream.available());
                // TODO Auto-generated method stub
                com.adobe.fd.ccm.channels.print.api.model.PrintChannel printChannel = null;
                String formName = params.split(",")[2];
                logger.info("The form name I got was "+formName);
                printChannel = printChannelService.getPrintChannel(formName);
                logger.info("Did i get print channel?");
                com.adobe.fd.ccm.channels.print.api.model.PrintChannelRenderOptions options = new com.adobe.fd.ccm.channels.print.api.model.PrintChannelRenderOptions();
                options.setMergeDataOnServer(true);
                options.setRenderInteractive(false);
                com.adobe.forms.common.service.DataOptions dataOptions = new com.adobe.forms.common.service.DataOptions();
                dataOptions.setServiceName(printChannel.getPrefillService());
                // dataOptions.setExtras(map);
                dataOptions.setContentType(ContentType.JSON);
                logger.info("####Set the content type####");
                dataOptions.setFormResource(getResolver.getFormsServiceResolver().getResource(formName));
                dataOptions.setServiceName("ccm-print-test");
                dataOptions.setExtras(new HashMap<String, Object>());
                dataOptions.getExtras().put("data", targetStream);
                options.setDataOptions(dataOptions);
                logger.info("####Set the data options");
                com.adobe.fd.ccm.channels.print.api.model.PrintDocument printDocument = printChannel
                .render(options);
                logger.info("####Generated the document");
                com.adobe.aemfd.docmanager.Document uploadedDocument = new com.adobe.aemfd.docmanager.Document(
                    printDocument.getInputStream());
                logger.info("Generated the document");
                Binary binary = session.getValueFactory().createBinary(printDocument.getInputStream());
                Session jcrSession = workflowSession.adaptTo(Session.class);
                String dataFilePath = workItem.getWorkflowData().getPayload().toString();

                Node dataFileNode = jcrSession.getNode(dataFilePath);
                Node icPdf = dataFileNode.addNode(icFileName, "nt:file");
                Node contentNode = icPdf.addNode("jcr:content", "nt:resource");
                contentNode.setProperty("jcr:data", binary);
                jcrSession.save();
                logger.info("Copied the generated document");
                uploadedDocument.close();

                return null;
            }