/**
* Returns either a list of all the files connected to this program or the single file that
* represents this program exactly, if such a file exists.
*
* @param request
* @param context
* @return
* @throws InvalidCredentialsException
* @throws InvalidResourceException
* @throws MethodFailedException
*/
private List<String> findFileObjects(TranscodeRequest request, InfrastructureContext context)
throws InvalidCredentialsException, InvalidResourceException, MethodFailedException {
CentralWebservice doms = CentralWebserviceFactory.getServiceInstance(context);
List<String> fileObjectPids = new ArrayList<String>();
List<Relation> relations = doms.getRelations(request.getObjectPid());
for (Relation relation : relations) {
logger.debug(
"Relation: "
+ request.getObjectPid()
+ " "
+ relation.getPredicate()
+ " "
+ relation.getObject());
if (relation.getPredicate().equals(HAS_EXACT_FILE_RELATION)) {
fileObjectPids = new ArrayList<String>();
fileObjectPids.add(relation.getObject());
request.setHasExactFile(true);
logger.debug(
"Program " + request.getObjectPid() + " has an exact file " + relation.getObject());
return fileObjectPids;
} else if (relation.getPredicate().equals(HAS_FILE_RELATION)) {
fileObjectPids.add(relation.getObject());
}
}
return fileObjectPids;
}
private List<BroadcastMetadata> getBroadcastMetadata(
List<String> fileObjectPids, InfrastructureContext context, TranscodeRequest request)
throws ProcessorException {
Map<String, BroadcastMetadata> pidMap = new HashMap<String, BroadcastMetadata>();
CentralWebservice doms = CentralWebserviceFactory.getServiceInstance(context);
List<BroadcastMetadata> broadcastMetadataList = new ArrayList<BroadcastMetadata>();
for (String fileObjectPid : fileObjectPids) {
BroadcastMetadata broadcastMetadata = null;
try {
String broadcastMetadataXml =
doms.getDatastreamContents(fileObjectPid, "BROADCAST_METADATA");
logger.debug("Found file metadata '" + fileObjectPid + "' :\n" + broadcastMetadataXml);
broadcastMetadata =
JAXBContext.newInstance(BroadcastMetadata.class)
.createUnmarshaller()
.unmarshal(
new StreamSource(new StringReader(broadcastMetadataXml)),
BroadcastMetadata.class)
.getValue();
} catch (Exception e) {
throw new ProcessorException(
"Failed to get Broadcast Metadata for " + request.getObjectPid(), e);
}
broadcastMetadataList.add(broadcastMetadata);
pidMap.put(fileObjectPid, broadcastMetadata);
}
request.setPidMap(pidMap);
return broadcastMetadataList;
}
@Override
protected void processThis(TranscodeRequest request, SingleTranscodingContext context)
throws ProcessorException {
List<String> fileObjectPids = null;
try {
fileObjectPids = findFileObjects(request, context);
} catch (Exception e) {
throw new ProcessorException("Failed to find file objects for " + request.getObjectPid(), e);
}
if (fileObjectPids.isEmpty()) {
throw new ProcessorException(
"No file-object relations for program " + request.getObjectPid());
}
/* if (request.isHasExactFile()) {
String uniqueFilePid = fileObjectPids.get(0);
CentralWebservice doms = CentralWebserviceFactory.getServiceInstance(context);
BroadcastMetadata broadcastMetadata = new BroadcastMetadata();
try {
String filename = doms.getObjectProfile(uniqueFilePid).getTitle();
broadcastMetadata.setFilename(filename);
} catch (Exception e) {
throw new ProcessorException("" + e);
}
Map<String, BroadcastMetadata> pidMap = new HashMap<String, BroadcastMetadata>();
pidMap.put(uniqueFilePid, broadcastMetadata);
request.setPidMap(pidMap);
List<BroadcastMetadata> broadcastMetadatas = new ArrayList<BroadcastMetadata>();
broadcastMetadatas.add(broadcastMetadata);
request.setBroadcastMetadata(broadcastMetadatas);
} else {*/
//
//
//
List<BroadcastMetadata> broadcastMetadata =
getBroadcastMetadata(fileObjectPids, context, request);
request.setBroadcastMetadata(broadcastMetadata);
// }
}