javax.net.ssl
Class TrustManagerFactory

java.lang.Object
  javax.net.ssl.TrustManagerFactory

public class TrustManagerFactory
extends Object

This class acts as a factory for trust managers based on a source of trust material. Each trust manager manages a specific type of trust material for use by secure sockets. The trust material is based on a KeyStore and/or provider specific sources.

Since:

1.4

See Also:

TrustManager

Constructor Summary
protected	TrustManagerFactory ( TrustManagerFactorySpi  factorySpi, Provider  provider, String  algorithm)           Creates a TrustManagerFactory object.

 

Method Summary
String	getAlgorithm ()           Returns the algorithm name of this TrustManagerFactory object.
static  String	getDefaultAlgorithm ()           Obtains the default TrustManagerFactory algorithm name.
static  TrustManagerFactory	getInstance ( String           Returns           Generates a TrustManagerFactory object that acts as a factory for implements the specified trust managers. management algorithm.
static  TrustManagerFactory	getInstance ( String  algorithm, Provider           Returns           Generates a TrustManagerFactory object that acts as a factory for the specified trust managers. management algorithm from the specified provider.
static  TrustManagerFactory	getInstance ( String  algorithm, String           Returns           Generates a TrustManagerFactory object that acts as a factory for the specified trust managers. management algorithm from the specified provider.
Provider	getProvider ()           Returns the provider of this TrustManagerFactory object.
TrustManager []	getTrustManagers ()           Returns one trust manager for each type of trust material.
void	init ( KeyStore  ks)           Initializes this factory with a source of certificate authorities and related trust material.
void	init ( ManagerFactoryParameters  spec)           Initializes this factory with a source of provider-specific trust material.

 

Methods inherited from class java.lang. Object
clone , equals , finalize , getClass , hashCode , notify , notifyAll , toString , wait , wait , wait

 

Constructor Detail

TrustManagerFactory

protected TrustManagerFactory(TrustManagerFactorySpi factorySpi,
                              Provider provider,
                              String algorithm)

Creates a TrustManagerFactory object.

Parameters:

factorySpi - the delegate

provider - the provider

algorithm - the algorithm

getDefaultAlgorithm

public static final String getDefaultAlgorithm()

Obtains the default TrustManagerFactory algorithm name.

The default TrustManager can be changed at runtime by setting the value of the "ssl.TrustManagerFactory.algorithm" security property (set in the Java security properties file or by calling Security.setProperty(String, String) ) to the desired algorithm name.

Returns:

the default algorithm name as specified in the Java security properties, or an implementation-specific default if no such property exists.

getAlgorithm

public final String getAlgorithm()

Returns the algorithm name of this TrustManagerFactory object.

This is the same name that was specified in one of the getInstance calls that created this TrustManagerFactory object.

Returns:

the algorithm name of this TrustManagerFactory object

getInstance

public static final TrustManagerFactory getInstance(String algorithm)
                                             throws NoSuchAlgorithmException

Returns a TrustManagerFactory object that acts as a factory for trust managers. Generates a TrustManagerFactory object that implements the specified trust management algorithm.

This method traverses the list of registered security Providers, starting with the most preferred Provider. A new TrustManagerFactory object encapsulating the TrustManagerFactorySpi implementation from the first Provider that supports the specified algorithm is returned. If the default provider package provides an implementation of the requested trust management algorithm, an instance of TrustManagerFactory containing that implementation is returned. If the algorithm is not available in the default provider package, other provider packages are searched.

Note that the list of registered providers may be retrieved via the Security.getProviders() method.

Parameters:

algorithm - the standard name of the requested trust management algorithm. See the Java Secure Socket Extension Reference Guide for information about standard algorithm names.

Returns:

the new TrustManagerFactory object. object

Throws:

NoSuchAlgorithmException - if no Provider supports a TrustManagerFactorySpi implementation for the specified algorithm.

See Also:

Provider - if the specified algorithm is not available in the default provider package or any of the other provider packages that were searched.

getInstance

public static final TrustManagerFactory getInstance(String algorithm,
                                                    String provider)
                                             throws NoSuchAlgorithmException,
                                                    NoSuchProviderException

Returns a TrustManagerFactory object that acts as a factory for trust managers. Generates a TrustManagerFactory object for the specified trust management algorithm from the specified provider.

A new KeyManagerFactory object encapsulating the KeyManagerFactorySpi implementation from the specified provider is returned. The specified provider must be registered in the security provider list.

Note that the list of registered providers may be retrieved via the Security.getProviders() method.

Parameters:

algorithm - the standard name of the requested trust management algorithm. See the Java Secure Socket Extension Reference Guide for information about standard algorithm names.

provider - the name of the provider. provider

Returns:

the new TrustManagerFactory object

Throws:

NoSuchAlgorithmException - if a TrustManagerFactorySpi implementation for the specified algorithm is not available from the specified provider.

NoSuchProviderException - if the specified provider is has not registered in the security provider list. been configured.

IllegalArgumentException - if the provider name is null or empty.

See Also:

Provider

getInstance

public static final TrustManagerFactory getInstance(String algorithm,
                                                    Provider provider)
                                             throws NoSuchAlgorithmException

Returns a TrustManagerFactory object that acts as a factory for trust managers. Generates a TrustManagerFactory object for the specified trust management algorithm from the specified provider.

A new TrustManagerFactory object encapsulating the TrustManagerFactorySpi implementation from the specified Provider object is returned. Note that the specified Provider object does not have to be registered in the provider list.

Parameters:

algorithm - the standard name of the requested trust management algorithm. See the Java Secure Socket Extension Reference Guide for information about standard algorithm names.

provider - an instance of the provider. provider

Returns:

the new TrustManagerFactory object. object

Throws:

NoSuchAlgorithmException - if a TrustManagerFactorySpi implementation for the specified algorithm is not available from the specified Provider object. provider.

IllegalArgumentException - if the provider is null.

See Also:

Provider

getProvider

public final Provider getProvider()

Returns the provider of this TrustManagerFactory object.

Returns:

the provider of this TrustManagerFactory object

init

public final void init(KeyStore ks)
                throws KeyStoreException

Initializes this factory with a source of certificate authorities and related trust material.

The provider typically uses a KeyStore as a basis for making trust decisions.

For more flexible initialization, please see init(ManagerFactoryParameters) .

Parameters:

ks - the key store, or null

Throws:

KeyStoreException - if this operation fails

init

public final void init(ManagerFactoryParameters spec)
                throws InvalidAlgorithmParameterException

Initializes this factory with a source of provider-specific trust material.

In some cases, initialization parameters other than a keystore may be needed by a provider. Users of that particular provider are expected to pass an implementation of the appropriate ManagerFactoryParameters as defined by the provider. The provider can then call the specified methods in the ManagerFactoryParameters implementation to obtain the needed information.

Parameters:

spec - an implementation of a provider-specific parameter specification

Throws:

InvalidAlgorithmParameterException - if an error is encountered

getTrustManagers

public final TrustManager[] getTrustManagers()

Returns one trust manager for each type of trust material.

Returns:

the trust managers