How to use

getCurrentKey

method

in

org.apache.hadoop.hdfs.security.token.block.ExportedBlockKeys

/**
 * Set block keys, only to be used in worker mode
 */
public synchronized void addKeys(ExportedBlockKeys exportedKeys)
  throws IOException {
 if (isMaster || exportedKeys == null) {
  return;
 }
 LOG.info("Setting block keys");
 removeExpiredKeys();
 this.currentKey = exportedKeys.getCurrentKey();
 BlockKey[] receivedKeys = exportedKeys.getAllKeys();
 for (int i = 0; i < receivedKeys.length; i++) {
  if (receivedKeys[i] != null) {
   this.allKeys.put(receivedKeys[i].getKeyId(), receivedKeys[i]);
  }
 }
}

public static ExportedBlockKeysProto convert(ExportedBlockKeys keys) {
 ExportedBlockKeysProto.Builder builder = ExportedBlockKeysProto
   .newBuilder();
 builder.setIsBlockTokenEnabled(keys.isBlockTokenEnabled())
   .setKeyUpdateInterval(keys.getKeyUpdateInterval())
   .setTokenLifeTime(keys.getTokenLifetime())
   .setCurrentKey(convert(keys.getCurrentKey()));
 for (BlockKey k : keys.getAllKeys()) {
  builder.addAllKeys(convert(k));
 }
 return builder.build();
}

/**
 * Set block keys, only to be used in slave mode
 */
public synchronized void addKeys(ExportedBlockKeys exportedKeys)
  throws IOException {
 if (isMaster || exportedKeys == null)
  return;
 LOG.info("Setting block keys");
 removeExpiredKeys();
 this.currentKey = exportedKeys.getCurrentKey();
 BlockKey[] receivedKeys = exportedKeys.getAllKeys();
 for (int i = 0; i < receivedKeys.length; i++) {
  if (receivedKeys[i] == null)
   continue;
  this.allKeys.put(receivedKeys[i].getKeyId(), receivedKeys[i]);
 }
}

/**
 * Set block keys, only to be used in slave mode
 */
public synchronized void addKeys(ExportedBlockKeys exportedKeys)
  throws IOException {
 if (isMaster || exportedKeys == null)
  return;
 LOG.info("Setting block keys");
 removeExpiredKeys();
 this.currentKey = exportedKeys.getCurrentKey();
 BlockKey[] receivedKeys = exportedKeys.getAllKeys();
 for (int i = 0; i < receivedKeys.length; i++) {
  if (receivedKeys[i] == null)
   continue;
  this.allKeys.put(receivedKeys[i].getKeyId(), receivedKeys[i]);
 }
}

void compare(ExportedBlockKeys expKeys, ExportedBlockKeys expKeys1) {
 BlockKey[] allKeys = expKeys.getAllKeys();
 BlockKey[] allKeys1 = expKeys1.getAllKeys();
 assertEquals(allKeys.length, allKeys1.length);
 for (int i = 0; i < allKeys.length; i++) {
  compare(allKeys[i], allKeys1[i]);
 }
 compare(expKeys.getCurrentKey(), expKeys1.getCurrentKey());
 assertEquals(expKeys.getKeyUpdateInterval(),
   expKeys1.getKeyUpdateInterval());
 assertEquals(expKeys.getTokenLifetime(), expKeys1.getTokenLifetime());
}

public static ExportedBlockKeysProto convert(ExportedBlockKeys keys) {
 ExportedBlockKeysProto.Builder builder = ExportedBlockKeysProto
   .newBuilder();
 builder.setIsBlockTokenEnabled(keys.isBlockTokenEnabled())
   .setKeyUpdateInterval(keys.getKeyUpdateInterval())
   .setTokenLifeTime(keys.getTokenLifetime())
   .setCurrentKey(convert(keys.getCurrentKey()));
 for (BlockKey k : keys.getAllKeys()) {
  builder.addAllKeys(convert(k));
 }
 return builder.build();
}

public static ExportedBlockKeysProto convert(ExportedBlockKeys keys) {
 ExportedBlockKeysProto.Builder builder = ExportedBlockKeysProto
   .newBuilder();
 builder.setIsBlockTokenEnabled(keys.isBlockTokenEnabled())
   .setKeyUpdateInterval(keys.getKeyUpdateInterval())
   .setTokenLifeTime(keys.getTokenLifetime())
   .setCurrentKey(convert(keys.getCurrentKey()));
 for (BlockKey k : keys.getAllKeys()) {
  builder.addAllKeys(convert(k));
 }
 return builder.build();
}