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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
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package javax.net.ssl;

import java.util.List;


Extends the SSLSession interface to support additional
session attributes.

Since:1.7
/**
 * Extends the <code>SSLSession</code> interface to support additional
 * session attributes.
 *
 * @since 1.7
 */
public abstract class ExtendedSSLSession implements SSLSession {
    
Obtains an array of supported signature algorithms that the local side
is willing to use.


Note: this method is used to indicate to the peer which signature
algorithms may be used for digital signatures since TLS 1.2. It is
not meaningful for TLS versions prior to 1.2.


The signature algorithm name must be a standard Java Security
name (such as "SHA1withRSA", "SHA256withECDSA", and so on).
See Appendix A in the 
Java Cryptography Architecture API Specification & Reference 
for information about standard algorithm names.

 Note: the local supported signature algorithms should conform to the algorithm constraints specified by getAlgorithmConstraints() method in SSLParameters.

See Also:
Returns:An array of supported signature algorithms, in descending
    order of preference.  The return value is an empty array if
    no signature algorithm is supported.
/**
     * Obtains an array of supported signature algorithms that the local side
     * is willing to use.
     * <p>
     * Note: this method is used to indicate to the peer which signature
     * algorithms may be used for digital signatures since TLS 1.2. It is
     * not meaningful for TLS versions prior to 1.2.
     * <p>
     * The signature algorithm name must be a standard Java Security
     * name (such as "SHA1withRSA", "SHA256withECDSA", and so on).
     * See Appendix A in the <a href=
     * "{@docRoot}/../technotes/guides/security/crypto/CryptoSpec.html#AppA">
     * Java Cryptography Architecture API Specification &amp; Reference </a>
     * for information about standard algorithm names.
     * <p>
     * Note: the local supported signature algorithms should conform to
     * the algorithm constraints specified by
     * {@link SSLParameters#getAlgorithmConstraints getAlgorithmConstraints()}
     * method in <code>SSLParameters</code>.
     *
     * @return An array of supported signature algorithms, in descending
     *     order of preference.  The return value is an empty array if
     *     no signature algorithm is supported.
     *
     * @see SSLParameters#getAlgorithmConstraints
     */
    public abstract String[] getLocalSupportedSignatureAlgorithms();

    
Obtains an array of supported signature algorithms that the peer is
able to use.


Note: this method is used to indicate to the local side which signature
algorithms may be used for digital signatures since TLS 1.2. It is
not meaningful for TLS versions prior to 1.2.


The signature algorithm name must be a standard Java Security
name (such as "SHA1withRSA", "SHA256withECDSA", and so on).
See Appendix A in the 
Java Cryptography Architecture API Specification & Reference 
for information about standard algorithm names.

See Also:
Returns:An array of supported signature algorithms, in descending
    order of preference.  The return value is an empty array if
    the peer has not sent the supported signature algorithms.
/**
     * Obtains an array of supported signature algorithms that the peer is
     * able to use.
     * <p>
     * Note: this method is used to indicate to the local side which signature
     * algorithms may be used for digital signatures since TLS 1.2. It is
     * not meaningful for TLS versions prior to 1.2.
     * <p>
     * The signature algorithm name must be a standard Java Security
     * name (such as "SHA1withRSA", "SHA256withECDSA", and so on).
     * See Appendix A in the <a href=
     * "{@docRoot}/../technotes/guides/security/crypto/CryptoSpec.html#AppA">
     * Java Cryptography Architecture API Specification &amp; Reference </a>
     * for information about standard algorithm names.
     *
     * @return An array of supported signature algorithms, in descending
     *     order of preference.  The return value is an empty array if
     *     the peer has not sent the supported signature algorithms.
     *
     * @see X509KeyManager
     * @see X509ExtendedKeyManager
     */
    public abstract String[] getPeerSupportedSignatureAlgorithms();

    
Obtains a List containing all SNIServerNames of the requested Server Name Indication (SNI) extension. 
 In server mode, unless the return List is empty, the server should use the requested server names to guide its selection of an appropriate authentication certificate, and/or other aspects of security policy. 
 In client mode, unless the return List is empty, the client should use the requested server names to guide its endpoint identification of the peer's identity, and/or other aspects of security policy. 
Throws:
See Also:
Returns:a non-null immutable list of SNIServerNames of the requested server name indications. The returned list may be empty if no server name indications were requested.
Since:1.8
/**
     * Obtains a {@link List} containing all {@link SNIServerName}s
     * of the requested Server Name Indication (SNI) extension.
     * <P>
     * In server mode, unless the return {@link List} is empty,
     * the server should use the requested server names to guide its
     * selection of an appropriate authentication certificate, and/or
     * other aspects of security policy.
     * <P>
     * In client mode, unless the return {@link List} is empty,
     * the client should use the requested server names to guide its
     * endpoint identification of the peer's identity, and/or
     * other aspects of security policy.
     *
     * @return a non-null immutable list of {@link SNIServerName}s of the
     *         requested server name indications. The returned list may be
     *         empty if no server name indications were requested.
     * @throws UnsupportedOperationException if the underlying provider
     *         does not implement the operation
     *
     * @see SNIServerName
     * @see X509ExtendedTrustManager
     * @see X509ExtendedKeyManager
     *
     * @since 1.8
     */
    public List<SNIServerName> getRequestedServerNames() {
        throw new UnsupportedOperationException();
    }
}