public void walk()
throws InvalidCredentialsException, MethodFailedException, InvalidResourceException {
List<Relation> relations = domsAPI.getInverseRelations("doms:ContentModel_Program");
for (Relation relation : relations) {
String programPid = relation.getObject();
domsAPI.getDatastreamContents(programPid, "PBCORE");
}
}
/**
* 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;
}