org.apache.harmony.security.fortress

Class Services

java.lang.Object

org.apache.harmony.security.fortress.Services

public class Services
extends Object

This class contains information about all registered providers and preferred implementations for all "serviceName.algName".

Constructor Summary

Constructors

Constructor and Description
Services()

Method Summary

Modifier and Type	Method and Description
static int	getCacheVersion() Returns the current cache version.
static Provider	getProvider(String name) Returns the provider with the specified name.
static ArrayList<Provider>	getProviders() Returns the actual registered providers.
static Provider.Service	getSecureRandomService() Returns the default SecureRandom service description.
static ArrayList<Provider.Service>	getServices(String type) Looks up the requested service by type.
static ArrayList<Provider.Service>	getServices(String type, String algorithm) Looks up the requested service by type and algorithm.
static int	insertProviderAt(Provider provider, int position) Inserts a provider at a specified 1-based position.
static void	removeProvider(int providerNumber) Removes the provider at the specified 1-based position.
static void	setNeedRefresh() In addition to being used here when the list of providers changes, this method is also used by the Provider implementation to indicate that a provides list of services has changed.

Methods inherited from class java.lang.Object

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

Constructor Detail

Services

public Services()

Method Detail

getProviders

public static ArrayList<Provider> getProviders()

Returns the actual registered providers.

getProvider

public static Provider getProvider(String name)

Returns the provider with the specified name.

insertProviderAt

public static int insertProviderAt(Provider provider,
                                   int position)

Inserts a provider at a specified 1-based position.

removeProvider

public static void removeProvider(int providerNumber)

Removes the provider at the specified 1-based position.

getServices

public static ArrayList<Provider.Service> getServices(String type)

Looks up the requested service by type. The service type and should be provided in the same format used when registering a service with a provider, for example, "KeyFactory". Callers can cache the returned service information but such caches should be validated against the result of Service.getCacheVersion() before use. Returns null if there are no services of the given type found.

getServices

public static ArrayList<Provider.Service> getServices(String type,
                                                      String algorithm)

Looks up the requested service by type and algorithm. The service type and should be provided in the same format used when registering a service with a provider, for example, "KeyFactory" and "RSA". Callers can cache the returned service information but such caches should be validated against the result of Service.getCacheVersion() before use. Returns null if there are no services found.

getSecureRandomService

public static Provider.Service getSecureRandomService()

Returns the default SecureRandom service description.

setNeedRefresh

public static void setNeedRefresh()

In addition to being used here when the list of providers changes, this method is also used by the Provider implementation to indicate that a provides list of services has changed.

getCacheVersion

public static int getCacheVersion()

Returns the current cache version. This has the possible side effect of updating the cache if needed.