private boolean checkSocket(Socket s) {
int l = deny.size();
byte address[] = s.getInetAddress().getAddress();
for (int i = 0; i < l; i++) {
AddressMatcher match = (AddressMatcher) deny.elementAt(i);
if (match.matches(address)) return false;
}
l = accept.size();
for (int i = 0; i < l; i++) {
AddressMatcher match = (AddressMatcher) accept.elementAt(i);
if (match.matches(address)) return true;
}
return false;
}
/**
* Checks incoming connections to see if they should be allowed. If not in paranoid mode, always
* returns true.
*
* @param s The socket to inspect.
* @return Whether the connection should be allowed.
*/
protected boolean allowConnection(Socket s) {
if (!paranoid) {
return true;
}
int l = deny.size();
byte address[] = s.getInetAddress().getAddress();
for (int i = 0; i < l; i++) {
AddressMatcher match = (AddressMatcher) deny.elementAt(i);
if (match.matches(address)) {
return false;
}
}
l = accept.size();
for (int i = 0; i < l; i++) {
AddressMatcher match = (AddressMatcher) accept.elementAt(i);
if (match.matches(address)) {
return true;
}
}
return false;
}
/**
* Returns logicalName and jobtracker Id when the local host matches the configuration parameter
* {@code addressKey}.<logical>.<jobtracker Id>
*
* @param conf Configuration
* @param addressKey configuration key corresponding to the address.
* @param logicalName
* @param matcher matching criteria for matching the address
* @return Array with logical name and jobtracker Id on success. First element in the array is
* logical name and second element is jobtracker Id. Null value indicates that the
* configuration does not have the the Id.
* @throws HadoopIllegalArgumentException on error
*/
static String[] getSuffixIDs(
final Configuration conf,
final String addressKey,
String logicalName,
final AddressMatcher matcher) {
String jobTrackerId = null;
int found = 0;
Collection<String> jtIds = getJtServiceIds(conf, logicalName);
for (String jtId : emptyAsSingletonNull(jtIds)) {
if (LOG.isTraceEnabled()) {
LOG.trace(
String.format(
"addressKey: %s logicalName: %s jtId: %s", addressKey, logicalName, jtId));
}
String key = DFSUtil.addKeySuffixes(addressKey, logicalName, jtId);
String addr = conf.get(key);
if (addr == null) {
continue;
}
InetSocketAddress s = null;
try {
s = NetUtils.createSocketAddr(addr);
} catch (Exception e) {
LOG.warn("Exception in creating socket address " + addr, e);
continue;
}
if (!s.isUnresolved() && matcher.match(s)) {
jobTrackerId = jtId;
found++;
}
}
// Only one address must match the local address
if (found == 0) {
String msg =
"Configuration has no addresses that match "
+ "local node's address. Please configure the system with "
+ MR_HA_JOBTRACKER_ID_KEY;
throw new HadoopIllegalArgumentException(msg);
} else if (found > 1) {
String msg =
"Configuration has multiple addresses that match "
+ "local node's address. Please configure the system with "
+ MR_HA_JOBTRACKER_ID_KEY;
throw new HadoopIllegalArgumentException(msg);
}
return new String[] {logicalName, jobTrackerId};
}