/**
* Use the collection's harvest settings to immediately perform a harvest cycle.
*
* @param context The current DSpace context.
* @param collectionID The collection id.
* @param request the Cocoon request object
* @return A process result's object.
* @throws TransformerException
* @throws SAXException
* @throws ParserConfigurationException
* @throws CrosswalkException
*/
public static FlowResult processRunCollectionHarvest(
Context context, int collectionID, Request request)
throws SQLException, IOException, AuthorizeException, CrosswalkException,
ParserConfigurationException, SAXException, TransformerException {
FlowResult result = new FlowResult();
OAIHarvester harvester;
List<String> testErrors = new ArrayList<String>();
Collection collection = Collection.find(context, collectionID);
HarvestedCollection hc = HarvestedCollection.find(context, collectionID);
// TODO: is there a cleaner way to do this?
try {
if (!HarvestScheduler.hasStatus(HarvestScheduler.HARVESTER_STATUS_STOPPED)) {
synchronized (HarvestScheduler.lock) {
HarvestScheduler.setInterrupt(
HarvestScheduler.HARVESTER_INTERRUPT_INSERT_THREAD, collectionID);
HarvestScheduler.lock.notify();
}
} else {
harvester = new OAIHarvester(context, collection, hc);
harvester.runHarvest();
}
} catch (Exception e) {
testErrors.add(e.getMessage());
result.setErrors(testErrors);
result.setContinue(false);
return result;
}
result.setContinue(true);
return result;
}
/**
* Process the collection harvesting options form.
*
* @param context The current DSpace context.
* @param collectionID The collection id.
* @param request the Cocoon request object
* @return A process result's object.
*/
public static FlowResult processSetupCollectionHarvesting(
Context context, int collectionID, Request request)
throws SQLException, IOException, AuthorizeException {
FlowResult result = new FlowResult();
HarvestedCollection hc = HarvestedCollection.find(context, collectionID);
String contentSource = request.getParameter("source");
// First, if this is not a harvested collection (anymore), set the harvest type to 0; possibly
// also wipe harvest settings
if (contentSource.equals("source_normal")) {
if (hc != null) {
hc.delete();
}
result.setContinue(true);
} else {
FlowResult subResult = testOAISettings(context, request);
// create a new harvest instance if all the settings check out
if (hc == null) {
hc = HarvestedCollection.create(context, collectionID);
}
// if the supplied options all check out, set the harvesting parameters on the collection
if (subResult.getErrors().isEmpty()) {
String oaiProvider = request.getParameter("oai_provider");
boolean oaiAllSets = "all".equals(request.getParameter("oai-set-setting"));
String oaiSetId;
if (oaiAllSets) {
oaiSetId = "all";
} else {
oaiSetId = request.getParameter("oai_setid");
}
String metadataKey = request.getParameter("metadata_format");
String harvestType = request.getParameter("harvest_level");
hc.setHarvestParams(Integer.parseInt(harvestType), oaiProvider, oaiSetId, metadataKey);
hc.setHarvestStatus(HarvestedCollection.STATUS_READY);
} else {
result.setErrors(subResult.getErrors());
result.setContinue(false);
return result;
}
hc.update();
}
// Save everything
context.commit();
// No notice...
// result.setMessage(new Message("default","Harvesting options successfully modified."));
result.setOutcome(true);
result.setContinue(true);
return result;
}
/**
* Purge the collection of all items, then run a fresh harvest cycle.
*
* @param context The current DSpace context.
* @param collectionID The collection id.
* @param request the Cocoon request object
* @return A process result's object.
* @throws TransformerException
* @throws SAXException
* @throws ParserConfigurationException
* @throws CrosswalkException
* @throws BrowseException
*/
public static FlowResult processReimportCollection(
Context context, int collectionID, Request request)
throws SQLException, IOException, AuthorizeException, CrosswalkException,
ParserConfigurationException, SAXException, TransformerException, BrowseException {
Collection collection = Collection.find(context, collectionID);
HarvestedCollection hc = HarvestedCollection.find(context, collectionID);
ItemIterator it = collection.getAllItems();
// IndexBrowse ib = new IndexBrowse(context);
while (it.hasNext()) {
Item item = it.next();
// System.out.println("Deleting: " + item.getHandle());
// ib.itemRemoved(item);
collection.removeItem(item);
}
hc.setHarvestResult(null, "");
hc.update();
collection.update();
context.commit();
return processRunCollectionHarvest(context, collectionID, request);
}
