HRegionLocation regLoc = table.getRegionLocation(HConstants.EMPTY_BYTE_ARRAY, false);
if (null == regLoc) {
throw new IOException("Expecting at least one region.");
}
List<InputSplit> splits = new ArrayList<InputSplit>(1);
InputSplit split = new TableSplit(table.getName(),
HConstants.EMPTY_BYTE_ARRAY, HConstants.EMPTY_BYTE_ARRAY, regLoc
.getHostnamePort().split(Addressing.HOSTNAME_PORT_SEPARATOR)[0]);
splits.add(split);
return splits;
}
List<InputSplit> splits = new ArrayList<InputSplit>(keys.getFirst().length);
for (int i = 0; i < keys.getFirst().length; i++) {
if ( !includeRegionInSplit(keys.getFirst()[i], keys.getSecond()[i])) {
continue;
}
HRegionLocation location = table.getRegionLocation(keys.getFirst()[i], false);
// The below InetSocketAddress creation does a name resolution.
InetSocketAddress isa = new InetSocketAddress(location.getHostname(), location.getPort());
if (isa.isUnresolved()) {
LOG.warn("Failed resolve " + isa);
}
InetAddress regionAddress = isa.getAddress();
String regionLocation;
try {
regionLocation = reverseDNS(regionAddress);
} catch (NamingException e) {
LOG.error("Cannot resolve the host name for " + regionAddress + " because of " + e);
regionLocation = location.getHostname();
}
byte[] startRow = scan.getStartRow();
byte[] stopRow = scan.getStopRow();
// determine if the given start an stop key fall into the region
if ((startRow.length == 0 || keys.getSecond()[i].length == 0 ||
Bytes.compareTo(startRow, keys.getSecond()[i]) < 0) &&
(stopRow.length == 0 ||
Bytes.compareTo(stopRow, keys.getFirst()[i]) > 0)) {
byte[] splitStart = startRow.length == 0 ||
Bytes.compareTo(keys.getFirst()[i], startRow) >= 0 ?
keys.getFirst()[i] : startRow;
byte[] splitStop = (stopRow.length == 0 ||
Bytes.compareTo(keys.getSecond()[i], stopRow) <= 0) &&
keys.getSecond()[i].length > 0 ?
keys.getSecond()[i] : stopRow;
InputSplit split = new TableSplit(table.getName(),
splitStart, splitStop, regionLocation);
splits.add(split);
if (LOG.isDebugEnabled()) {
LOG.debug("getSplits: split -> " + i + " -> " + split);
}