Class PasswordHashProviderRegistry

java.lang.Object

com.svenruppert.jsentinel.credential.password.provider.PasswordHashProviderRegistry

public final class PasswordHashProviderRegistry
extends Object

Lookup of PasswordHashProviders by stored envelope metadata.

The registry resolves providers by the providerId that is embedded in the envelope — not by the active policy. That way a stored hash always finds the implementation that produced it, regardless of policy churn (CWE-693).

Construction takes a defensive copy. Duplicate providerId values are rejected at construction time so that misconfiguration surfaces fast (CWE-755).

Constructor Summary

Constructors

Constructor	Description
PasswordHashProviderRegistry(Collection<? extends PasswordHashProvider> providers)

Method Summary

Modifier and Type	Method	Description
static PasswordHashProviderRegistry	fromServiceLoader()	Builds a registry from every PasswordHashProvider discovered through ServiceLoader on the current thread's context class loader.
Set<String>	knownProviderIds()	Returns the provider identifiers known to this registry, in registration order.
Collection<PasswordHashProvider>	providers()	Returns the providers registered with this instance.
Optional<PasswordHashProvider>	resolve(String providerId, String algorithm)	Resolves the provider associated with the given envelope metadata.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

PasswordHashProviderRegistry

public PasswordHashProviderRegistry(Collection<? extends PasswordHashProvider> providers)

Method Details

resolve

public Optional<PasswordHashProvider> resolve(String providerId,
 String algorithm)

Resolves the provider associated with the given envelope metadata.

Returns:

the matching provider, or Optional.empty() when no provider with that providerId is registered, or the registered provider declines to supports(...) the requested algorithm

knownProviderIds

public Set<String> knownProviderIds()

Returns the provider identifiers known to this registry, in registration order.

providers

public Collection<PasswordHashProvider> providers()

Returns the providers registered with this instance.

fromServiceLoader

public static PasswordHashProviderRegistry fromServiceLoader()

Builds a registry from every PasswordHashProvider discovered through ServiceLoader on the current thread's context class loader.

The global JCA provider order is not modified by this call. Providers are only registered with this registry instance; the caller decides where to hand the registry next.