@Override
public int run(Configuration conf, List<String> args) throws IOException {
if (!args.isEmpty()) {
System.err.println("Can't understand argument: " + args.get(0));
return 1;
}
final DistributedFileSystem dfs = getDFS(conf);
try {
final TableListing listing =
new TableListing.Builder()
.addField("")
.addField("", true)
.wrapWidth(MAX_LINE_WIDTH)
.hideHeaders()
.build();
final RemoteIterator<EncryptionZone> it = dfs.listEncryptionZones();
while (it.hasNext()) {
EncryptionZone ez = it.next();
listing.addRow(ez.getPath(), ez.getKeyName());
}
System.out.println(listing.toString());
} catch (IOException e) {
System.err.println(prettifyException(e));
return 2;
}
return 0;
}
@Override
public boolean arePathsOnSameEncryptionZone(Path path1, Path path2) throws IOException {
EncryptionZone zone1, zone2;
zone1 = hdfsAdmin.getEncryptionZoneForPath(path1);
zone2 = hdfsAdmin.getEncryptionZoneForPath(path2);
if (zone1 == null && zone2 == null) {
return true;
} else if (zone1 == null || zone2 == null) {
return false;
}
return zone1.equals(zone2);
}
@Override
public int comparePathKeyStrength(Path path1, Path path2) throws IOException {
EncryptionZone zone1, zone2;
zone1 = hdfsAdmin.getEncryptionZoneForPath(path1);
zone2 = hdfsAdmin.getEncryptionZoneForPath(path2);
if (zone1 == null && zone2 == null) {
return 0;
} else if (zone1 == null) {
return -1;
} else if (zone2 == null) {
return 1;
}
return compareKeyStrength(zone1.getKeyName(), zone2.getKeyName());
}