jruby ldaptive SASL/EXTERNAL search

lsearch.rb

require 'java'

require 'logback-core-1.0.9.jar'
require 'logback-classic-1.0.9.jar'
require 'slf4j-api-1.7.4.jar'
require 'ldaptive-1.0.jar'

import 'org.slf4j.Logger'
import 'org.slf4j.LoggerFactory'
import 'ch.qos.logback.classic.LoggerContext'
import 'ch.qos.logback.core.util.StatusPrinter'

java_import "org.ldaptive.DefaultConnectionFactory"
java_import "org.ldaptive.ConnectionConfig"
java_import "org.ldaptive.SearchOperation"
java_import "org.ldaptive.SearchRequest"
java_import "org.ldaptive.SearchResult"
java_import "org.ldaptive.LdapEntry"
java_import "org.ldaptive.LdapAttribute"
java_import "org.ldaptive.io.ValueTranscoder"
java_import "org.ldaptive.ssl.KeyStoreCredentialConfig"
java_import "org.ldaptive.ssl.SslConfig"
java_import "org.ldaptive.sasl.ExternalConfig"
java_import "org.ldaptive.BindOperation"
java_import "org.ldaptive.BindRequest"

class NoOpStringValueTranscoder 
  include org.ldaptive.io.ValueTranscoder
  def decodeStringValue(string)
    string
  end

  def getType
    "a_string".class
  end
end


logger = LoggerFactory.getLogger("lsearch") 

conn_config = ConnectionConfig.new("ldap://ldap.test.com")
conn_config.setUseStartTLS(true)

cred_config = KeyStoreCredentialConfig.new
cred_config.setKeyStore("file:cluster.keystore")
cred_config.setKeyStorePassword("secret")

conn_config.setSslConfig(SslConfig.new(cred_config))

conn = DefaultConnectionFactory.getConnection(conn_config)
conn.open
bind = BindOperation.new conn
bind.execute(BindRequest.new(ExternalConfig.new))
search = SearchOperation.new(conn)
result = search.execute(
                        SearchRequest.new("dc=test,dc=com","uid=a_user", "mail", "isMemberOf")
                        ).result
ldap_entry = result.entry
p ldap_entry
p ldap_entry.getDn
ldap_entry.attributes.each do |attr|
  puts "#{attr.name} => #{attr.getValues(NoOpStringValueTranscoder.new).join(", ")}"
end