J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2000-2003 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 java.security.cert; |
| 27 | |
| 28 | import java.security.InvalidAlgorithmParameterException; |
| 29 | import java.util.Collection; |
| 30 | |
| 31 | /** |
| 32 | * The <i>Service Provider Interface</i> (<b>SPI</b>) |
| 33 | * for the {@link CertStore CertStore} class. All <code>CertStore</code> |
| 34 | * implementations must include a class (the SPI class) that extends |
| 35 | * this class (<code>CertStoreSpi</code>), provides a constructor with |
| 36 | * a single argument of type <code>CertStoreParameters</code>, and implements |
| 37 | * all of its methods. In general, instances of this class should only be |
| 38 | * accessed through the <code>CertStore</code> class. |
| 39 | * For details, see the Java Cryptography Architecture. |
| 40 | * <p> |
| 41 | * <b>Concurrent Access</b> |
| 42 | * <p> |
| 43 | * The public methods of all <code>CertStoreSpi</code> objects must be |
| 44 | * thread-safe. That is, multiple threads may concurrently invoke these |
| 45 | * methods on a single <code>CertStoreSpi</code> object (or more than one) |
| 46 | * with no ill effects. This allows a <code>CertPathBuilder</code> to search |
| 47 | * for a CRL while simultaneously searching for further certificates, for |
| 48 | * instance. |
| 49 | * <p> |
| 50 | * Simple <code>CertStoreSpi</code> implementations will probably ensure |
| 51 | * thread safety by adding a <code>synchronized</code> keyword to their |
| 52 | * <code>engineGetCertificates</code> and <code>engineGetCRLs</code> methods. |
| 53 | * More sophisticated ones may allow truly concurrent access. |
| 54 | * |
| 55 | * @since 1.4 |
| 56 | * @author Steve Hanna |
| 57 | */ |
| 58 | public abstract class CertStoreSpi { |
| 59 | |
| 60 | /** |
| 61 | * The sole constructor. |
| 62 | * |
| 63 | * @param params the initialization parameters (may be <code>null</code>) |
| 64 | * @throws InvalidAlgorithmParameterException if the initialization |
| 65 | * parameters are inappropriate for this <code>CertStoreSpi</code> |
| 66 | */ |
| 67 | public CertStoreSpi(CertStoreParameters params) |
| 68 | throws InvalidAlgorithmParameterException { } |
| 69 | |
| 70 | /** |
| 71 | * Returns a <code>Collection</code> of <code>Certificate</code>s that |
| 72 | * match the specified selector. If no <code>Certificate</code>s |
| 73 | * match the selector, an empty <code>Collection</code> will be returned. |
| 74 | * <p> |
| 75 | * For some <code>CertStore</code> types, the resulting |
| 76 | * <code>Collection</code> may not contain <b>all</b> of the |
| 77 | * <code>Certificate</code>s that match the selector. For instance, |
| 78 | * an LDAP <code>CertStore</code> may not search all entries in the |
| 79 | * directory. Instead, it may just search entries that are likely to |
| 80 | * contain the <code>Certificate</code>s it is looking for. |
| 81 | * <p> |
| 82 | * Some <code>CertStore</code> implementations (especially LDAP |
| 83 | * <code>CertStore</code>s) may throw a <code>CertStoreException</code> |
| 84 | * unless a non-null <code>CertSelector</code> is provided that includes |
| 85 | * specific criteria that can be used to find the certificates. Issuer |
| 86 | * and/or subject names are especially useful criteria. |
| 87 | * |
| 88 | * @param selector A <code>CertSelector</code> used to select which |
| 89 | * <code>Certificate</code>s should be returned. Specify <code>null</code> |
| 90 | * to return all <code>Certificate</code>s (if supported). |
| 91 | * @return A <code>Collection</code> of <code>Certificate</code>s that |
| 92 | * match the specified selector (never <code>null</code>) |
| 93 | * @throws CertStoreException if an exception occurs |
| 94 | */ |
| 95 | public abstract Collection<? extends Certificate> engineGetCertificates |
| 96 | (CertSelector selector) throws CertStoreException; |
| 97 | |
| 98 | /** |
| 99 | * Returns a <code>Collection</code> of <code>CRL</code>s that |
| 100 | * match the specified selector. If no <code>CRL</code>s |
| 101 | * match the selector, an empty <code>Collection</code> will be returned. |
| 102 | * <p> |
| 103 | * For some <code>CertStore</code> types, the resulting |
| 104 | * <code>Collection</code> may not contain <b>all</b> of the |
| 105 | * <code>CRL</code>s that match the selector. For instance, |
| 106 | * an LDAP <code>CertStore</code> may not search all entries in the |
| 107 | * directory. Instead, it may just search entries that are likely to |
| 108 | * contain the <code>CRL</code>s it is looking for. |
| 109 | * <p> |
| 110 | * Some <code>CertStore</code> implementations (especially LDAP |
| 111 | * <code>CertStore</code>s) may throw a <code>CertStoreException</code> |
| 112 | * unless a non-null <code>CRLSelector</code> is provided that includes |
| 113 | * specific criteria that can be used to find the CRLs. Issuer names |
| 114 | * and/or the certificate to be checked are especially useful. |
| 115 | * |
| 116 | * @param selector A <code>CRLSelector</code> used to select which |
| 117 | * <code>CRL</code>s should be returned. Specify <code>null</code> |
| 118 | * to return all <code>CRL</code>s (if supported). |
| 119 | * @return A <code>Collection</code> of <code>CRL</code>s that |
| 120 | * match the specified selector (never <code>null</code>) |
| 121 | * @throws CertStoreException if an exception occurs |
| 122 | */ |
| 123 | public abstract Collection<? extends CRL> engineGetCRLs |
| 124 | (CRLSelector selector) throws CertStoreException; |
| 125 | } |