How to read attributes from LDAP in Jira using Groovy

Example script code in Groovy to read attributes from persons of the LDAP in Jira Server or Datacenter by MrAddon

@GrabResolver(name='apache-snapshot', root='http://repository.apache.org/snapshots/')
@Grab(group='org.apache.directory', module='groovyldap', version='0.1-SNAPSHOT')
import javax.naming.Context;
import javax.naming.NameNotFoundException;
import javax.naming.NamingEnumeration;
import javax.naming.NamingException;
import javax.naming.directory.Attribute;
import javax.naming.directory.Attributes;
import javax.naming.directory.BasicAttribute;
import javax.naming.directory.BasicAttributes;
import javax.naming.directory.ModificationItem;
import javax.naming.directory.SearchControls;
import javax.naming.directory.SearchResult;
import javax.naming.ldap.InitialLdapContext;
import javax.naming.ldap.LdapContext;
import javax.naming.ldap.LdapName;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Collection;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.logging.Level;
import java.util.logging.Logger;
 
import org.apache.directory.groovyldap.*
 
log.setLevel(org.apache.log4j.Level.DEBUG)
log.debug "Connecting EXAMPLE LDAP..."
def ldap = LDAP.newInstance('ldap://ldap.example.org:port', 'CN=Raul Pelaez,OU=LDAPUsers,OU=Users_Processes,OU=USER,DC=example,DC=org', 'xxxx')
log.debug "Connection completed"
//log.debug "Verifying if Raul Pelaez exists in the 9th dimension...."
//def exists = ldap.exists('CN=Raul Pelaez,OU=MrAddon,OU=External,OU=BCN,OU=USER,DC=example,DC=org')
//if (exists) {
//log.debug "Yes... he exists!"
log.debug "Searching users"
//def results = ldap.search('(objectClass=user)', 'DC=example,DC=org', SearchScope.SUB )
def results = ldap.search('(sAMAccountName=raul.pelaez)', 'DC=example,DC=org', SearchScope.SUB )
log.debug "# Entries found: ${results.size}"
def dn = results[0].getNameInNamespace();
Attributes attrs = results[0].getAttributes("");
NamingEnumeration<? extends Attribute> en = attrs.getAll();
Map<String, Object> map = new LinkedHashMap<>();
map.put("dn", dn);
while (en.hasMore()) {
	Attribute attr = en.next();
    String key = attr.getID();
    map.put(key, attr.get(0).toString());
    log.debug attr.get(0).toString()
}