Binary attributes are converted to string when queried by

[goto1134]

I have the following Entity

@Entry(objectClasses = ["top", "person", "user"], base = "ou=users")
class LdapUser {

    @Id
    lateinit var id: Name

    @Attribute(name = "objectGUID", type = Attribute.Type.BINARY, readonly = true)
    lateinit var guid: ByteArray
}

interface LdapUserRepository : Repository<LdapUser, Name> {
    fun findByGuid(guid: ByteArray): AlternativeLdapUser
}

When I search by guid with value 90d1c68e-01be-4485-aafd-b3ffb9ddb026 converted to a 32 element byte array, the library generates the following request:

base=ou=users, finalFilter=(&(&(objectclass=top)(objectclass=person)(objectclass=user))(objectGUID=[B@7363e35b))

And the result is always empty. The correct filter would be:

base=ou=users, finalFilter=(&(&(objectclass=top)(objectclass=person)(objectclass=user))(objectGUID=\90\d1\c6\8e\01\be\44\85\aa\fd\b3\ff\b9\dd\b0\26))

Please, support binary attribute query parameters.

[goto1134]

This issue may somehow be related to spring-projects/spring-ldap#634

[mp911de]

ConditionCriteria supports only String arguments. We can proceed here once Spring LDAP accepts other value types.

[mp911de]

We've introduced @LdapEncode annotations to control the representation. You can now implement an LDAP encoder to represent your UUID as base64-encoded string. Since LDAP queries are strings anyways, all arguments are converted into their toString representation.