private static <M extends Map<Key, V>, V> M transposeMapHelp(Map<Key, V> orig, M neww) {
for (Map.Entry<Key, V> entry : orig.entrySet()) {
Key k0 = entry.getKey();
Key k =
new Key(
k0.getColumnQualifier(),
k0.getColumnFamily(),
k0.getRow(),
k0.getColumnVisibilityParsed(),
k0.getTimestamp());
neww.put(k, entry.getValue());
}
return neww;
}
/** Write entries to a table. */
public static void writeEntries(
Connector connector, Map<Key, Value> map, String table, boolean createIfNotExist) {
if (createIfNotExist && !connector.tableOperations().exists(table))
try {
connector.tableOperations().create(table);
} catch (AccumuloException | AccumuloSecurityException e) {
log.error("trouble creating " + table, e);
throw new RuntimeException(e);
} catch (TableExistsException e) {
log.error("crazy", e);
throw new RuntimeException(e);
}
BatchWriterConfig bwc = new BatchWriterConfig();
BatchWriter bw;
try {
bw = connector.createBatchWriter(table, bwc);
} catch (TableNotFoundException e) {
log.error("tried to write to a non-existant table " + table, e);
throw new RuntimeException(e);
}
try {
for (Map.Entry<Key, Value> entry : map.entrySet()) {
Key k = entry.getKey();
ByteSequence rowData = k.getRowData(),
cfData = k.getColumnFamilyData(),
cqData = k.getColumnQualifierData();
Mutation m = new Mutation(rowData.getBackingArray(), rowData.offset(), rowData.length());
m.put(
cfData.getBackingArray(),
cqData.getBackingArray(),
k.getColumnVisibilityParsed(),
entry.getValue().get());
bw.addMutation(m);
}
} catch (MutationsRejectedException e) {
log.error("mutations rejected", e);
throw new RuntimeException(e);
} finally {
try {
bw.close();
} catch (MutationsRejectedException e) {
log.error("mutations rejected while trying to close BatchWriter", e);
}
}
}