private InputSource fetchContentsOfSmpUrl(
ParticipantId participant, PeppolDocumentTypeId documentTypeIdentifier, URL smpUrl)
throws SmpSignedServiceMetaDataException {
InputSource smpContents;
try {
Log.debug("Constructed SMP url: " + smpUrl.toExternalForm());
smpContents = smpContentRetriever.getUrlContent(smpUrl);
} catch (Exception e) {
throw new SmpSignedServiceMetaDataException(participant, documentTypeIdentifier, smpUrl, e);
}
return smpContents;
}
/**
* Retrieves a group of URLs representing the documents accepted by the given participant id
*
* @param participantId participant id to look up
* @return list of URLs representing each document type accepted
*/
@Override
public List<PeppolDocumentTypeId> getServiceGroups(ParticipantId participantId)
throws SmpLookupException, ParticipantNotRegisteredException {
// Creates the URL for the service meta data for the supplied participant
URL serviceGroupURL = constructServiceGroupURL(participantId);
if (!isParticipantRegistered(serviceGroupURL)) {
throw new ParticipantNotRegisteredException(participantId);
}
NodeList nodes;
List<PeppolDocumentTypeId> result = new ArrayList<PeppolDocumentTypeId>();
InputSource smpContents;
/*
When looking up ParticipantId("9908:976098897") we expected the SML not
to resolve, but it actually did and we got a not found (HTTP 404) response
from SMP instead (smp-basware.publisher.sml.peppolcentral.org).
*/
try {
smpContents = smpContentRetriever.getUrlContent(serviceGroupURL);
} catch (ConnectionException ex) {
if (404 == ex.getCode()) {
// signal that we got a NOT FOUND for that participant in the SMP
throw new ParticipantNotRegisteredException(participantId);
} else {
throw ex; // re-throw exception
}
}
// Parses the XML response from the SMP
try {
DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
documentBuilderFactory.setNamespaceAware(true);
DocumentBuilder documentBuilder;
Document document;
documentBuilder = documentBuilderFactory.newDocumentBuilder();
document = documentBuilder.parse(smpContents);
// Locates the namespace URI of the root element
String nameSpaceURI = document.getDocumentElement().getNamespaceURI();
nodes = document.getElementsByTagNameNS(nameSpaceURI, "ServiceMetadataReference");
} catch (Exception e) {
throw new SmpLookupException(participantId, serviceGroupURL, e);
}
// Loop the SMR elements, if any, and populate the result list
if (nodes != null) {
for (int i = 0; i < nodes.getLength(); i++) {
String docTypeAsString = null;
try {
// Fetch href attribute
Element element = (Element) nodes.item(i);
String hrefAsString = element.getAttribute("href");
// Gets rid of all the funny %3A's...
hrefAsString = URLDecoder.decode(hrefAsString, "UTF-8");
// Grabs the entire text string after "busdox-docid-qns::"
docTypeAsString =
hrefAsString.substring(
hrefAsString.indexOf("busdox-docid-qns::") + "busdox-docid-qns::".length());
// Parses and creates the document type id
PeppolDocumentTypeId peppolDocumentTypeId = PeppolDocumentTypeId.valueOf(docTypeAsString);
result.add(peppolDocumentTypeId);
} catch (Exception e) {
/* ignore unparseable document types at runtime */
Log.warn(
"Unable to create PeppolDocumentTypeId from "
+ docTypeAsString
+ ", got exception "
+ e.getMessage());
}
}
}
return result;
}