Fluig: enviar um documento do GED para um WS externo como chunked post

send_file_webservice.js

var fluigUsername = "username";
var fluigPassword = "password";
var fluigEmpresa = 1;
var documentId = 0;
var documentVersion = "1000";
var documentDescription = "arquivo.pdf";
var mimeType = "application/pdf";

var ECMDocumentServiceProvider = ServiceManager.getServiceInstance("ECMDocumentService");
var ECMDocumentServiceLocator = ECMDocumentServiceProvider.instantiate("com.totvs.technology.ecm.dm.ws.ECMDocumentServiceService");
var documentService = ECMDocumentServiceLocator.getDocumentServicePort();

var documentContent = documentService.getDocumentContent(
    fluigUsername,
    fluigPassword,
    fluigEmpresa,
    documentId,
    getValue("WKUser"),
    documentVersion,
    documentDescription
);

var reqEntity = new org.apache.http.entity.InputStreamEntity(
    java.io.ByteArrayInputStream(documentContent),
    -1,
    org.apache.http.entity.ContentType.APPLICATION_OCTET_STREAM
);

reqEntity.setChunked(true);

var client = org.apache.http.impl.client.HttpClients.createDefault();
var url = "http://url.com.br";

var post = new org.apache.http.client.methods.HttpPost(url);
post.addHeader("Content-Disposition", "attachment;filename=" + documentDescription);
post.addHeader("Content-type", mimeType);
post.setEntity(reqEntity);

var responseApi = client.execute(post);
var responseJson = JSON.parse(org.apache.http.util.EntityUtils.toString(responseAPi.getEntity()));