- java.lang.Object
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- javax.net.ssl.TrustManagerFactory
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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
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Constructor Summary
Constructors Modifier Constructor and Description protected
TrustManagerFactory(TrustManagerFactorySpi factorySpi, Provider provider, String algorithm)
Creates a TrustManagerFactory object.
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Method Summary
Methods Modifier and Type Method and Description String
getAlgorithm()
Returns the algorithm name of thisTrustManagerFactory
object.static String
getDefaultAlgorithm()
Obtains the default TrustManagerFactory algorithm name.static TrustManagerFactory
getInstance(String algorithm)
Returns aTrustManagerFactory
object that acts as a factory for trust managers.static TrustManagerFactory
getInstance(String algorithm, Provider provider)
Returns aTrustManagerFactory
object that acts as a factory for trust managers.static TrustManagerFactory
getInstance(String algorithm, String provider)
Returns aTrustManagerFactory
object that acts as a factory for trust managers.Provider
getProvider()
Returns the provider of thisTrustManagerFactory
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.
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Constructor Detail
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TrustManagerFactory
protected TrustManagerFactory(TrustManagerFactorySpi factorySpi, Provider provider, String algorithm)
Creates a TrustManagerFactory object.- Parameters:
factorySpi
- the delegateprovider
- the provideralgorithm
- the algorithm
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Method Detail
-
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 thisTrustManagerFactory
object.This is the same name that was specified in one of the
getInstance
calls that created thisTrustManagerFactory
object.- Returns:
- the algorithm name of this
TrustManagerFactory
object
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getInstance
public static final TrustManagerFactory getInstance(String algorithm) throws NoSuchAlgorithmException
Returns aTrustManagerFactory
object that acts as a factory for trust managers.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.
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. - Throws:
NoSuchAlgorithmException
- if no Provider supports a TrustManagerFactorySpi implementation for the specified algorithm.NullPointerException
- if algorithm is null.- See Also:
Provider
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getInstance
public static final TrustManagerFactory getInstance(String algorithm, String provider) throws NoSuchAlgorithmException, NoSuchProviderException
Returns aTrustManagerFactory
object that acts as a factory for trust managers.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.- 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 not registered in the security provider list.IllegalArgumentException
- if the provider name is null or empty.NullPointerException
- if algorithm is null.- See Also:
Provider
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getInstance
public static final TrustManagerFactory getInstance(String algorithm, Provider provider) throws NoSuchAlgorithmException
Returns aTrustManagerFactory
object that acts as a factory for trust managers.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.- Returns:
- the new
TrustManagerFactory
object. - Throws:
NoSuchAlgorithmException
- if a TrustManagerFactorySpi implementation for the specified algorithm is not available from the specified Provider object.IllegalArgumentException
- if the provider is null.NullPointerException
- if algorithm is null.- See Also:
Provider
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getProvider
public final Provider getProvider()
Returns the provider of thisTrustManagerFactory
object.- Returns:
- the provider of this
TrustManagerFactory
object
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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
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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 theManagerFactoryParameters
implementation to obtain the needed information.- Parameters:
spec
- an implementation of a provider-specific parameter specification- Throws:
InvalidAlgorithmParameterException
- if an error is encountered
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getTrustManagers
public final TrustManager[] getTrustManagers()
Returns one trust manager for each type of trust material.- Returns:
- the trust managers
- Throws:
IllegalStateException
- if the factory is not initialized.
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