@Override
public boolean deleteObjects(
final ByteArrayId primaryId, final ByteArrayId secondaryId, final String... authorizations) {
if (primaryId != null) {
return accumuloOperations.delete(
getTablename(),
primaryId,
getColumnFamily(),
getColumnQualifier(secondaryId),
authorizations);
}
try {
final BatchScanner scanner = getScanner(null, secondaryId, authorizations);
final Iterator<Entry<Key, Value>> it = scanner.iterator();
try (final CloseableIterator<?> cit =
new CloseableIteratorWrapper<T>(
new ScannerClosableWrapper(scanner), new DeleteIteratorWrapper(it, authorizations))) {
while (cit.hasNext()) {
deleteObjectFromCache(getPrimaryId((T) cit.next()), secondaryId);
}
} catch (final IOException e) {
LOGGER.error("Unable to delete objects", e);
}
} catch (final TableNotFoundException e) {
LOGGER.error("Unable to find objects, table '" + getTablename() + "' does not exist", e);
}
return true;
}
protected BatchScanner getScanner(
final ByteArrayId primaryId, final ByteArrayId secondaryId, final String... authorizations)
throws TableNotFoundException {
final BatchScanner scanner =
accumuloOperations.createBatchScanner(getTablename(), authorizations);
final IteratorSetting[] settings = getScanSettings();
if ((settings != null) && (settings.length > 0)) {
for (final IteratorSetting setting : settings) {
scanner.addScanIterator(setting);
}
}
final String columnFamily = getColumnFamily();
final String columnQualifier = getColumnQualifier(secondaryId);
if (columnFamily != null) {
if (columnQualifier != null) {
scanner.fetchColumn(new Text(columnFamily), new Text(columnQualifier));
} else {
scanner.fetchColumnFamily(new Text(columnFamily));
}
}
final Collection<Range> ranges = new ArrayList<Range>();
if (primaryId != null) {
ranges.add(new Range(new Text(primaryId.getBytes())));
} else {
ranges.add(new Range());
}
scanner.setRanges(ranges);
return scanner;
}
@Override
protected void addObject(final ByteArrayId id, final ByteArrayId secondaryId, final T object) {
addObjectToCache(id, secondaryId, object);
try {
final Writer writer = accumuloOperations.createWriter(getTablename(), true);
synchronized (this) {
if (!iteratorsAttached) {
iteratorsAttached = true;
final IteratorConfig[] configs = getIteratorConfig();
if ((configs != null) && (configs.length > 0)) {
accumuloOperations.attachIterators(getTablename(), true, true, true, null, configs);
}
}
}
final Mutation mutation = new Mutation(new Text(id.getBytes()));
final Text cf = getSafeText(getColumnFamily());
final Text cq = getSafeText(getColumnQualifier(object));
final byte[] visibility = getVisibility(object);
if (visibility != null) {
mutation.put(
cf, cq, new ColumnVisibility(visibility), new Value(PersistenceUtils.toBinary(object)));
} else {
mutation.put(cf, cq, new Value(PersistenceUtils.toBinary(object)));
}
writer.write(mutation);
try {
writer.close();
} catch (final IOException e) {
LOGGER.warn("Unable to close metadata writer", e);
}
} catch (final TableNotFoundException e) {
LOGGER.error("Unable add object", e);
}
}
