How to use

getSaslPropsResolver

method

in

org.apache.hadoop.hdfs.server.datanode.DNConf

  + "peer = {}, datanodeId = {}", peer, datanodeId);
 return new IOStreamPair(underlyingIn, underlyingOut);
} else if (dnConf.getSaslPropsResolver() != null) {
 LOG.debug(
  "SASL server doing general handshake for peer = {}, datanodeId = {}",

SaslPropertiesResolver saslPropsResolver = dnConf.getSaslPropsResolver();
if (saslPropsResolver != null &&
  DFSUtil.getHttpPolicy(conf) == HttpConfig.Policy.HTTPS_ONLY) {

/**
 * Receives SASL negotiation for general-purpose handshake.
 *
 * @param peer connection peer
 * @param underlyingOut connection output stream
 * @param underlyingIn connection input stream
 * @return new pair of streams, wrapped after SASL negotiation
 * @throws IOException for any error
 */
private IOStreamPair getSaslStreams(Peer peer, OutputStream underlyingOut,
  InputStream underlyingIn) throws IOException {
 if (peer.hasSecureChannel() ||
   dnConf.getTrustedChannelResolver().isTrusted(getPeerAddress(peer))) {
  return new IOStreamPair(underlyingIn, underlyingOut);
 }
 SaslPropertiesResolver saslPropsResolver = dnConf.getSaslPropsResolver();
 Map<String, String> saslProps = saslPropsResolver.getServerProperties(
  getPeerAddress(peer));
 CallbackHandler callbackHandler = new SaslServerCallbackHandler(
  new PasswordFunction() {
   @Override
   public char[] apply(String userName) throws IOException {
    return buildServerPassword(userName);
   }
 });
 return doSaslHandshake(peer, underlyingOut, underlyingIn, saslProps,
   callbackHandler);
}

 return;
SaslPropertiesResolver saslPropsResolver = dnConf.getSaslPropsResolver();
if (resources != null && saslPropsResolver == null) {
 return;

 return;
SaslPropertiesResolver saslPropsResolver = dnConf.getSaslPropsResolver();
if (resources != null && saslPropsResolver == null) {
 return;

  + "peer = {}, datanodeId = {}", peer, datanodeId);
 return new IOStreamPair(underlyingIn, underlyingOut);
} else if (dnConf.getSaslPropsResolver() != null) {
 LOG.debug(
  "SASL server doing general handshake for peer = {}, datanodeId = {}",

/**
 * Receives SASL negotiation for general-purpose handshake.
 *
 * @param peer connection peer
 * @param underlyingOut connection output stream
 * @param underlyingIn connection input stream
 * @return new pair of streams, wrapped after SASL negotiation
 * @throws IOException for any error
 */
private IOStreamPair getSaslStreams(Peer peer, OutputStream underlyingOut,
  InputStream underlyingIn) throws IOException {
 if (peer.hasSecureChannel() ||
   dnConf.getTrustedChannelResolver().isTrusted(getPeerAddress(peer))) {
  return new IOStreamPair(underlyingIn, underlyingOut);
 }
 SaslPropertiesResolver saslPropsResolver = dnConf.getSaslPropsResolver();
 Map<String, String> saslProps = saslPropsResolver.getServerProperties(
  getPeerAddress(peer));
 CallbackHandler callbackHandler = new SaslServerCallbackHandler(
  new PasswordFunction() {
   @Override
   public char[] apply(String userName) throws IOException {
    return buildServerPassword(userName);
   }
 });
 return doSaslHandshake(underlyingOut, underlyingIn, saslProps,
   callbackHandler);
}

/**
 * Receives SASL negotiation for general-purpose handshake.
 *
 * @param peer connection peer
 * @param underlyingOut connection output stream
 * @param underlyingIn connection input stream
 * @return new pair of streams, wrapped after SASL negotiation
 * @throws IOException for any error
 */
private IOStreamPair getSaslStreams(Peer peer, OutputStream underlyingOut,
  InputStream underlyingIn) throws IOException {
 if (peer.hasSecureChannel() ||
   dnConf.getTrustedChannelResolver().isTrusted(getPeerAddress(peer))) {
  return new IOStreamPair(underlyingIn, underlyingOut);
 }
 SaslPropertiesResolver saslPropsResolver = dnConf.getSaslPropsResolver();
 Map<String, String> saslProps = saslPropsResolver.getServerProperties(
  getPeerAddress(peer));
 CallbackHandler callbackHandler = new SaslServerCallbackHandler(
  new PasswordFunction() {
   @Override
   public char[] apply(String userName) throws IOException {
    return buildServerPassword(userName);
   }
 });
 return doSaslHandshake(underlyingOut, underlyingIn, saslProps,
   callbackHandler);
}

  + "peer = {}, datanodeId = {}", peer, datanodeId);
 return new IOStreamPair(underlyingIn, underlyingOut);
} else if (dnConf.getSaslPropsResolver() != null) {
 LOG.debug(
  "SASL server doing general handshake for peer = {}, datanodeId = {}",