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-/* AlgorithmParametersSpi.java --- Algorithm Parameters SPI
- Copyright (C) 1999, 2004 Free Software Foundation, Inc.
-
-This file is part of GNU Classpath.
-
-GNU Classpath is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU Classpath is distributed in the hope that it will be useful, but
-WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU Classpath; see the file COPYING. If not, write to the
-Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA.
-
-Linking this library statically or dynamically with other modules is
-making a combined work based on this library. Thus, the terms and
-conditions of the GNU General Public License cover the whole
-combination.
-
-As a special exception, the copyright holders of this library give you
-permission to link this library with independent modules to produce an
-executable, regardless of the license terms of these independent
-modules, and to copy and distribute the resulting executable under
-terms of your choice, provided that you also meet, for each linked
-independent module, the terms and conditions of the license of that
-module. An independent module is a module which is not derived from
-or based on this library. If you modify this library, you may extend
-this exception to your version of the library, but you are not
-obligated to do so. If you do not wish to do so, delete this
-exception statement from your version. */
-
-
-package java.security;
-
-import java.io.IOException;
-import java.security.spec.AlgorithmParameterSpec;
-import java.security.spec.InvalidParameterSpecException;
-
-/**
- * AlgorithmParametersSpi is the Service Provider Interface
- * for the Algorithm Parameters class. This class is used
- * to manage the algorithm parameters.
- *
- * @since 1.2
- * @author Mark Benvenuto
- */
-public abstract class AlgorithmParametersSpi
-{
- /**
- * Creates a new instance of AlgorithmParametersSpi
- */
- public AlgorithmParametersSpi()
- {
- }
-
- /**
- * Initializes the engine with the specified
- * AlgorithmParameterSpec class.
- *
- * @param paramSpec A AlgorithmParameterSpec to initialize with
- *
- * @throws InvalidParameterSpecException For an inapporiate
- * ParameterSpec class
- */
- protected abstract void engineInit(AlgorithmParameterSpec paramSpec)
- throws InvalidParameterSpecException;
-
- /**
- * Initializes the engine with the specified
- * parameters stored in the byte array and decodes them
- * according to the ASN.1 specification. If the ASN.1
- * specification exists then it succeeds or else it throws
- * IOException.
- *
- * @param params Parameters to initialize with
- *
- * @throws IOException Decoding Error
- */
- protected abstract void engineInit(byte[]params) throws IOException;
-
- /**
- * Initializes the engine with the specified
- * parameters stored in the byte array and decodes them
- * according to the specified decoding specification.
- * If format is null, then it is decoded using the ASN.1
- * specification if it exists or else it throws
- * IOException.
- *
- * @param params Parameters to initialize with
- * @param format Name of decoding format to use
- *
- * @throws IOException Decoding Error
- */
- protected abstract void engineInit(byte[]params, String format)
- throws IOException;
-
-
- /**
- * Returns a specification of this AlgorithmParameters object.
- * paramSpec identifies the class to return the AlgortihmParameters
- * in.
- *
- * @param paramSpec Class to return AlgorithmParameters in
- *
- * @return the parameter specification
- *
- * @throws InvalidParameterSpecException if the paramSpec is an
- * invalid parameter class
- */
- protected abstract AlgorithmParameterSpec engineGetParameterSpec(Class
- paramSpec)
- throws InvalidParameterSpecException;
-
-
- /**
- * Returns the parameters in the default encoding format.
- * The primary encoding format is ASN.1 format if it exists
- * for the specified type.
- *
- * @return byte array representing the parameters
- */
- protected abstract byte[] engineGetEncoded() throws IOException;
-
-
- /**
- * Returns the parameters in the specified encoding format.
- * If <code>format</code> is <code>null</code> then the
- * primary encoding format is used, the ASN.1 format,
- * if it exists for the specified type.
- *
- * @return byte array representing the parameters
- */
- protected abstract byte[] engineGetEncoded(String format)
- throws IOException;
-
- /**
- * Returns a string describing the parameters in the
- * AlgorithmParametersSpi class.
- *
- * @return A string representing the format of the parameters.
- */
- protected abstract String engineToString();
-}
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