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      1 /*
      2  * Copyright (c) 1999, 2001, Oracle and/or its affiliates. All rights reserved.
      3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
      4  *
      5  * This code is free software; you can redistribute it and/or modify it
      6  * under the terms of the GNU General Public License version 2 only, as
      7  * published by the Free Software Foundation.  Oracle designates this
      8  * particular file as subject to the "Classpath" exception as provided
      9  * by Oracle in the LICENSE file that accompanied this code.
     10  *
     11  * This code is distributed in the hope that it will be useful, but WITHOUT
     12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
     13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
     14  * version 2 for more details (a copy is included in the LICENSE file that
     15  * accompanied this code).
     16  *
     17  * You should have received a copy of the GNU General Public License version
     18  * 2 along with this work; if not, write to the Free Software Foundation,
     19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
     20  *
     21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
     22  * or visit www.oracle.com if you need additional information or have any
     23  * questions.
     24  */
     25 
     26 package javax.net.ssl;
     27 
     28 import java.security.*;
     29 
     30 /**
     31  * This class defines the <i>Service Provider Interface</i> (<b>SPI</b>)
     32  * for the <code>KeyManagerFactory</code> class.
     33  *
     34  * <p> All the abstract methods in this class must be implemented by each
     35  * cryptographic service provider who wishes to supply the implementation
     36  * of a particular key manager factory.
     37  *
     38  * @since 1.4
     39  * @see KeyManagerFactory
     40  * @see KeyManager
     41  */
     42 public abstract class KeyManagerFactorySpi {
     43     /**
     44      * Initializes this factory with a source of key material.
     45      *
     46      * @param ks the key store or null
     47      * @param password the password for recovering keys
     48      * @throws KeyStoreException if this operation fails
     49      * @throws NoSuchAlgorithmException if the specified algorithm is not
     50      *          available from the specified provider.
     51      * @throws UnrecoverableKeyException if the key cannot be recovered
     52      * @see KeyManagerFactory#init(KeyStore, char[])
     53      */
     54     protected abstract void engineInit(KeyStore ks, char[] password) throws
     55         KeyStoreException, NoSuchAlgorithmException, UnrecoverableKeyException;
     56 
     57     /**
     58      * Initializes this factory with a source of key material.
     59      * <P>
     60      * In some cases, initialization parameters other than a keystore
     61      * and password may be needed by a provider.  Users of that
     62      * particular provider are expected to pass an implementation of
     63      * the appropriate <CODE>ManagerFactoryParameters</CODE> as
     64      * defined by the provider.  The provider can then call the
     65      * specified methods in the ManagerFactoryParameters
     66      * implementation to obtain the needed information.
     67      *
     68      * @param spec an implementation of a provider-specific parameter
     69      *          specification
     70      * @throws InvalidAlgorithmParameterException if there is problem
     71      *          with the parameters
     72      * @see KeyManagerFactory#init(ManagerFactoryParameters spec)
     73      */
     74     protected abstract void engineInit(ManagerFactoryParameters spec)
     75         throws InvalidAlgorithmParameterException;
     76 
     77     /**
     78      * Returns one key manager for each type of key material.
     79      *
     80      * @return the key managers
     81      * @throws IllegalStateException
     82      *         if the KeyManagerFactorySpi is not initialized
     83      */
     84     protected abstract KeyManager[] engineGetKeyManagers();
     85 }
     86