J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1997-2003 Sun Microsystems, Inc. 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package sun.security.x509; |
| 27 | |
| 28 | import java.io.IOException; |
| 29 | import java.io.OutputStream; |
| 30 | import java.security.cert.CertificateException; |
| 31 | import java.util.Enumeration; |
| 32 | |
| 33 | /** |
| 34 | * This interface defines the methods required of a certificate attribute. |
| 35 | * Examples of X.509 certificate attributes are Validity, Issuer_Name, and |
| 36 | * Subject Name. A CertAttrSet may comprise one attribute or many |
| 37 | * attributes. |
| 38 | * <p> |
| 39 | * A CertAttrSet itself can also be comprised of other sub-sets. |
| 40 | * In the case of X.509 V3 certificates, for example, the "extensions" |
| 41 | * attribute has subattributes, such as those for KeyUsage and |
| 42 | * AuthorityKeyIdentifier. |
| 43 | * |
| 44 | * @author Amit Kapoor |
| 45 | * @author Hemma Prafullchandra |
| 46 | * @see CertificateException |
| 47 | */ |
| 48 | public interface CertAttrSet<T> { |
| 49 | /** |
| 50 | * Returns a short string describing this certificate attribute. |
| 51 | * |
| 52 | * @return value of this certificate attribute in |
| 53 | * printable form. |
| 54 | */ |
| 55 | String toString(); |
| 56 | |
| 57 | /** |
| 58 | * Encodes the attribute to the output stream in a format |
| 59 | * that can be parsed by the <code>decode</code> method. |
| 60 | * |
| 61 | * @param out the OutputStream to encode the attribute to. |
| 62 | * |
| 63 | * @exception CertificateException on encoding or validity errors. |
| 64 | * @exception IOException on other errors. |
| 65 | */ |
| 66 | void encode(OutputStream out) |
| 67 | throws CertificateException, IOException; |
| 68 | |
| 69 | /** |
| 70 | * Sets an attribute value within this CertAttrSet. |
| 71 | * |
| 72 | * @param name the name of the attribute (e.g. "x509.info.key") |
| 73 | * @param obj the attribute object. |
| 74 | * |
| 75 | * @exception CertificateException on attribute handling errors. |
| 76 | * @exception IOException on other errors. |
| 77 | */ |
| 78 | void set(String name, Object obj) |
| 79 | throws CertificateException, IOException; |
| 80 | |
| 81 | /** |
| 82 | * Gets an attribute value for this CertAttrSet. |
| 83 | * |
| 84 | * @param name the name of the attribute to return. |
| 85 | * |
| 86 | * @exception CertificateException on attribute handling errors. |
| 87 | * @exception IOException on other errors. |
| 88 | */ |
| 89 | Object get(String name) |
| 90 | throws CertificateException, IOException; |
| 91 | |
| 92 | /** |
| 93 | * Deletes an attribute value from this CertAttrSet. |
| 94 | * |
| 95 | * @param name the name of the attribute to delete. |
| 96 | * |
| 97 | * @exception CertificateException on attribute handling errors. |
| 98 | * @exception IOException on other errors. |
| 99 | */ |
| 100 | void delete(String name) |
| 101 | throws CertificateException, IOException; |
| 102 | |
| 103 | /** |
| 104 | * Returns an enumeration of the names of the attributes existing within |
| 105 | * this attribute. |
| 106 | * |
| 107 | * @return an enumeration of the attribute names. |
| 108 | */ |
| 109 | Enumeration<T> getElements(); |
| 110 | |
| 111 | /** |
| 112 | * Returns the name (identifier) of this CertAttrSet. |
| 113 | * |
| 114 | * @return the name of this CertAttrSet. |
| 115 | */ |
| 116 | String getName(); |
| 117 | } |