From 3f0ac9ff1c5ee8e74638815f744c8a8507c0e10f Mon Sep 17 00:00:00 2001 From: bryce Date: Wed, 25 Apr 2001 15:45:15 +0000 Subject: gcc/java: 2001-04-25 Bryce McKinlay * decl.c (init_decl_processing): Add new class "protectionDomain" field. * class.c (make_class_data): Set initial value for "protectionDomain". libjava: 2001-04-25 Bryce McKinlay java.security merge and ClassLoader compliance fixes. * java/lang/Class.h (Class): Include ProtectionDomain.h. New protectionDomain field. (forName): Add initialize parameter. Fixes declaration to comply with JDK spec. * java/lang/natClass.cc (forName): Correct declaration of the three-arg variant. Honour "initialize" flag. (getProtectionDomain0): New method. * java/lang/Class.java: Fix forName() declaration. (getPackage): New method based on Classpath implementation. (getProtectionDomain0): New native method decl. (getProtectionDomain): New method. * java/lang/ClassLoader.java (getParent): Now final. (definedPackages): New field. (getPackage): New. (defineClass): New variant with protectionDomain argument. (definePackage): New. (getPackages): New. (findSystemClass): Now final. (getSystemResourceAsStream): Remove redundant "final" modifier. (getSystemResource): Remove redundant "final" modifier. (getResources): Now final. (protectionDomainPermission): New static field. (unknownProtectionDomain): Ditto. (defaultProtectionDomain): Ditto. (getSystemClassLoader): Now non-native. * java/util/ResourceBundle.java (tryGetSomeBundle): Use the correct arguments for Class.forName(). * java/lang/Package.java: New file. * gnu/gcj/runtime/VMClassLoader.java (getVMClassLoader): Removed. (instance): Static initialize singleton. (findClass): Override this, not findSystemClass. * java/lang/natClassLoader.cc (defineClass0): Set class's protectionDomain field as specified. (getSystemClassLoader): Removed. (findClass): Renamed from findSystemClass. Call the interpreter via URLClassLoader.findClass if loading class via dlopen fails. * java/security/*.java: java.security import/merge with Classpath. * java/security/acl/*.java: Likewise. * java/security/interfaces/*.java: Likewise. * java/security/spec/*.java: Likewise. * java/net/NetPermission.java: Likewise. * java/net/SocketPermission.java: Likewise. * gnu/java/security/provider/DefaultPolicy.java: Likewise. * Makefile.am: Add new classes. * Makefile.in: Rebuilt. * gcj/javaprims.h: CNI namespace rebuild. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@41543 138bc75d-0d04-0410-961f-82ee72b054a4 --- libjava/java/security/AlgorithmParameters.java | 265 +++++++++++++++++++++++++ 1 file changed, 265 insertions(+) create mode 100644 libjava/java/security/AlgorithmParameters.java (limited to 'libjava/java/security/AlgorithmParameters.java') diff --git a/libjava/java/security/AlgorithmParameters.java b/libjava/java/security/AlgorithmParameters.java new file mode 100644 index 00000000000..5c570b5448a --- /dev/null +++ b/libjava/java/security/AlgorithmParameters.java @@ -0,0 +1,265 @@ +/* AlgorithmParameters.java --- Algorithm Parameters Implementation Class + Copyright (C) 1999 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., 59 Temple Place, Suite 330, Boston, MA +02111-1307 USA. + +As a special exception, if you link this library with other files to +produce an executable, this library does not by itself cause the +resulting executable to be covered by the GNU General Public License. +This exception does not however invalidate any other reasons why the +executable file might be covered by the GNU General Public License. */ + + +package java.security; +import java.security.spec.InvalidParameterSpecException; +import java.security.spec.AlgorithmParameterSpec; +import java.io.IOException; + +/** + AlgorithmParameters is the Algorithm Parameters class which + provides an interface through which to modify parameters for + classes. This class is used to manage the algorithm parameters. + + @since JDK 1.2 + @author Mark Benvenuto + */ +public class AlgorithmParameters +{ + private AlgorithmParametersSpi paramSpi; + private Provider provider; + private String algorithm; + + /** + Creates an instance of AlgorithmParameters + + @param paramSpi A parameters engine to use + @param provider A provider to use + @param algorithm The algorithm + */ + protected AlgorithmParameters(AlgorithmParametersSpi paramSpi, + Provider provider, String algorithm) + { + this.paramSpi = paramSpi; + this.provider = provider; + this.algorithm = algorithm; + } + + /** + Returns the name of the algorithm used + + @return A string with the name of the algorithm + */ + public final String getAlgorithm() + { + return algorithm; + } + + /** + Gets an instance of the AlgorithmParameters class representing + the specified algorithm parameters. If the algorithm is not + found then, it throws NoSuchAlgorithmException. + + The returned AlgorithmParameters must still be intialized with + init(). + + @param algorithm the name of algorithm to choose + @return a AlgorithmParameters repesenting the desired algorithm + + @throws NoSuchAlgorithmException if the algorithm is not implemented by providers + */ + public static AlgorithmParameters getInstance(String algorithm) throws + NoSuchAlgorithmException + { + Provider[] p = Security.getProviders(); + + for (int i = 0; i < p.length; i++) + { + String classname = + p[i].getProperty("AlgorithmParameters." + algorithm); + if (classname != null) + return getInstance(classname, algorithm, p[i]); + } + + throw new NoSuchAlgorithmException(algorithm); + } + + /** + Gets an instance of the AlgorithmParameters class representing + the specified algorithm parameters from the specified provider. + If the algorithm is not found then, it throws + NoSuchAlgorithmException. If the provider is not found, then + it throws NoSuchProviderException. + + The returned AlgorithmParameters must still be intialized with + init(). + + @param algorithm the name of algorithm to choose + @param provider the name of the provider to find the algorithm in + @return a AlgorithmParameters repesenting the desired algorithm + + @throws NoSuchAlgorithmException if the algorithm is not implemented by the provider + @throws NoSuchProviderException if the provider is not found + */ + public static AlgorithmParameters getInstance(String algorithm, + String provider) throws + NoSuchAlgorithmException, NoSuchProviderException + { + Provider p = Security.getProvider(provider); + if (p == null) + throw new NoSuchProviderException(); + + return getInstance(p.getProperty("AlgorithmParameters." + algorithm), + algorithm, p); + } + + private static AlgorithmParameters getInstance(String classname, + String algorithm, + Provider provider) + throws NoSuchAlgorithmException + { + + try + { + return new AlgorithmParameters((AlgorithmParametersSpi) Class. + forName(classname).newInstance(), + provider, algorithm); + } + catch (ClassNotFoundException cnfe) + { + throw new NoSuchAlgorithmException("Class not found"); + } + catch (InstantiationException ie) + { + throw new NoSuchAlgorithmException("Class instantiation failed"); + } + catch (IllegalAccessException iae) + { + throw new NoSuchAlgorithmException("Illegal Access"); + } + } + + /** + Gets the provider that the class is from. + + @return the provider of this class + */ + public final Provider getProvider() + { + return provider; + } + + /** + Initializes the engine with the specified + AlgorithmParameterSpec class. + + @param paramSpec A AlgorithmParameterSpec to initialize with + + @throws InvalidParameterSpecException For an inapporiate ParameterSpec class + */ + public final void init(AlgorithmParameterSpec paramSpec) throws + InvalidParameterSpecException + { + paramSpi.engineInit(paramSpec); + } + + /** + 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 + */ + public final void init(byte[]params) throws IOException + { + paramSpi.engineInit(params); + } + + /** + 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 + */ + public final void init(byte[]params, String format) throws IOException + { + paramSpi.engineInit(params, format); + } + + /** + 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 + */ + public final AlgorithmParameterSpec getParameterSpec(Class paramSpec) throws + InvalidParameterSpecException + { + return paramSpi.engineGetParameterSpec(paramSpec); + } + + /** + 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 + */ + public final byte[] getEncoded() throws IOException + { + return paramSpi.engineGetEncoded(); + } + + /** + Returns the parameters in the specified encoding format. + If format is null then the + primary encoding format is used, the ASN.1 format, + if it exists for the specified type. + + @return byte array representing the parameters + */ + public final byte[] getEncoded(String format) throws IOException + { + return paramSpi.engineGetEncoded(format); + } + + /** + Returns a string representation of the encoding format + + @return a string containing the string representation + */ + public final String toString() + { + return paramSpi.engineToString(); + } +} -- cgit v1.2.3