Showing the changes to java/pkg/sun/security/provider/certpath/CollectionCertStore.java (1 of 18352 files). Show all
Unified · Split
| @@ -0,0 +1,190 @@ | |||
| 1 | /* | ||
| 2 | * Copyright (c) 2000, 2006, 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 sun.security.provider.certpath; | ||
| 27 | |||
| 28 | import java.security.InvalidAlgorithmParameterException; | ||
| 29 | import java.security.cert.Certificate; | ||
| 30 | import java.security.cert.CRL; | ||
| 31 | import java.util.Collection; | ||
| 32 | import java.util.ConcurrentModificationException; | ||
| 33 | import java.util.HashSet; | ||
| 34 | import java.util.Iterator; | ||
| 35 | import java.security.cert.CertSelector; | ||
| 36 | import java.security.cert.CertStore; | ||
| 37 | import java.security.cert.CertStoreException; | ||
| 38 | import java.security.cert.CertStoreParameters; | ||
| 39 | import java.security.cert.CollectionCertStoreParameters; | ||
| 40 | import java.security.cert.CRLSelector; | ||
| 41 | import java.security.cert.CertStoreSpi; | ||
| 42 | |||
| 43 | /** | ||
| 44 | * A <code>CertStore</code> that retrieves <code>Certificates</code> and | ||
| 45 | * <code>CRL</code>s from a <code>Collection</code>. | ||
| 46 | * <p> | ||
| 47 | * Before calling the {@link #engineGetCertificates engineGetCertificates} or | ||
| 48 | * {@link #engineGetCRLs engineGetCRLs} methods, the | ||
| 49 | * {@link #CollectionCertStore(CertStoreParameters) | ||
| 50 | * CollectionCertStore(CertStoreParameters)} constructor is called to | ||
| 51 | * create the <code>CertStore</code> and establish the | ||
| 52 | * <code>Collection</code> from which <code>Certificate</code>s and | ||
| 53 | * <code>CRL</code>s will be retrieved. If the specified | ||
| 54 | * <code>Collection</code> contains an object that is not a | ||
| 55 | * <code>Certificate</code> or <code>CRL</code>, that object will be | ||
| 56 | * ignored. | ||
| 57 | * <p> | ||
| 58 | * <b>Concurrent Access</b> | ||
| 59 | * <p> | ||
| 60 | * As described in the javadoc for <code>CertStoreSpi</code>, the | ||
| 61 | * <code>engineGetCertificates</code> and <code>engineGetCRLs</code> methods | ||
| 62 | * must be thread-safe. That is, multiple threads may concurrently | ||
| 63 | * invoke these methods on a single <code>CollectionCertStore</code> | ||
| 64 | * object (or more than one) with no ill effects. | ||
| 65 | * <p> | ||
| 66 | * This is achieved by requiring that the <code>Collection</code> passed to | ||
| 67 | * the {@link #CollectionCertStore(CertStoreParameters) | ||
| 68 | * CollectionCertStore(CertStoreParameters)} constructor (via the | ||
| 69 | * <code>CollectionCertStoreParameters</code> object) must have fail-fast | ||
| 70 | * iterators. Simultaneous modifications to the <code>Collection</code> can thus be | ||
| 71 | * detected and certificate or CRL retrieval can be retried. The fact that | ||
| 72 | * <code>Certificate</code>s and <code>CRL</code>s must be thread-safe is also | ||
| 73 | * essential. | ||
| 74 | * | ||
| 75 | * @see java.security.cert.CertStore | ||
| 76 | * | ||
| 77 | * @since 1.4 | ||
| 78 | * @author Steve Hanna | ||
| 79 | */ | ||
| 80 | public class CollectionCertStore extends CertStoreSpi { | ||
| 81 | |||
| 82 | private Collection<?> coll; | ||
| 83 | |||
| 84 | /** | ||
| 85 | * Creates a <code>CertStore</code> with the specified parameters. | ||
| 86 | * For this class, the parameters object must be an instance of | ||
| 87 | * <code>CollectionCertStoreParameters</code>. The <code>Collection</code> | ||
| 88 | * included in the <code>CollectionCertStoreParameters</code> object | ||
| 89 | * must be thread-safe. | ||
| 90 | * | ||
| 91 | * @param params the algorithm parameters | ||
| 92 | * @exception InvalidAlgorithmParameterException if params is not an | ||
| 93 | * instance of <code>CollectionCertStoreParameters</code> | ||
| 94 | */ | ||
| 95 | public CollectionCertStore(CertStoreParameters params) | ||
| 96 | throws InvalidAlgorithmParameterException | ||
| 97 | { | ||
| 98 | super(params); | ||
| 99 | if (!(params instanceof CollectionCertStoreParameters)) | ||
| 100 | throw new InvalidAlgorithmParameterException( | ||
| 101 | "parameters must be CollectionCertStoreParameters"); | ||
| 102 | coll = ((CollectionCertStoreParameters) params).getCollection(); | ||
| 103 | } | ||
| 104 | |||
| 105 | /** | ||
| 106 | * Returns a <code>Collection</code> of <code>Certificate</code>s that | ||
| 107 | * match the specified selector. If no <code>Certificate</code>s | ||
| 108 | * match the selector, an empty <code>Collection</code> will be returned. | ||
| 109 | * | ||
| 110 | * @param selector a <code>CertSelector</code> used to select which | ||
| 111 | * <code>Certificate</code>s should be returned. Specify <code>null</code> | ||
| 112 | * to return all <code>Certificate</code>s. | ||
| 113 | * @return a <code>Collection</code> of <code>Certificate</code>s that | ||
| 114 | * match the specified selector | ||
| 115 | * @throws CertStoreException if an exception occurs | ||
| 116 | */ | ||
| 117 | public Collection<Certificate> engineGetCertificates | ||
| 118 | (CertSelector selector) throws CertStoreException { | ||
| 119 | if (coll == null) { | ||
| 120 | throw new CertStoreException("Collection is null"); | ||
| 121 | } | ||
| 122 | // Tolerate a few ConcurrentModificationExceptions | ||
| 123 | for (int c = 0; c < 10; c++) { | ||
| 124 | try { | ||
| 125 | HashSet<Certificate> result = new HashSet<Certificate>(); | ||
| 126 | Iterator<?> i = coll.iterator(); | ||
| 127 | if (selector != null) { | ||
| 128 | while (i.hasNext()) { | ||
| 129 | Object o = i.next(); | ||
| 130 | if ((o instanceof Certificate) && | ||
| 131 | selector.match((Certificate) o)) | ||
| 132 | result.add((Certificate)o); | ||
| 133 | } | ||
| 134 | } else { | ||
| 135 | while (i.hasNext()) { | ||
| 136 | Object o = i.next(); | ||
| 137 | if (o instanceof Certificate) | ||
| 138 | result.add((Certificate)o); | ||
| 139 | } | ||
| 140 | } | ||
| 141 | return(result); | ||
| 142 | } catch (ConcurrentModificationException e) { } | ||
| 143 | } | ||
| 144 | throw new ConcurrentModificationException("Too many " | ||
| 145 | + "ConcurrentModificationExceptions"); | ||
| 146 | } | ||
| 147 | |||
| 148 | /** | ||
| 149 | * Returns a <code>Collection</code> of <code>CRL</code>s that | ||
| 150 | * match the specified selector. If no <code>CRL</code>s | ||
| 151 | * match the selector, an empty <code>Collection</code> will be returned. | ||
| 152 | * | ||
| 153 | * @param selector a <code>CRLSelector</code> used to select which | ||
| 154 | * <code>CRL</code>s should be returned. Specify <code>null</code> | ||
| 155 | * to return all <code>CRL</code>s. | ||
| 156 | * @return a <code>Collection</code> of <code>CRL</code>s that | ||
| 157 | * match the specified selector | ||
| 158 | * @throws CertStoreException if an exception occurs | ||
| 159 | */ | ||
| 160 | public Collection<CRL> engineGetCRLs(CRLSelector selector) | ||
| 161 | throws CertStoreException | ||
| 162 | { | ||
| 163 | if (coll == null) | ||
| 164 | throw new CertStoreException("Collection is null"); | ||
| 165 | |||
| 166 | // Tolerate a few ConcurrentModificationExceptions | ||
| 167 | for (int c = 0; c < 10; c++) { | ||
| 168 | try { | ||
| 169 | HashSet<CRL> result = new HashSet<CRL>(); | ||
| 170 | Iterator<?> i = coll.iterator(); | ||
| 171 | if (selector != null) { | ||
| 172 | while (i.hasNext()) { | ||
| 173 | Object o = i.next(); | ||
| 174 | if ((o instanceof CRL) && selector.match((CRL) o)) | ||
| 175 | result.add((CRL)o); | ||
| 176 | } | ||
| 177 | } else { | ||
| 178 | while (i.hasNext()) { | ||
| 179 | Object o = i.next(); | ||
| 180 | if (o instanceof CRL) | ||
| 181 | result.add((CRL)o); | ||
| 182 | } | ||
| 183 | } | ||
| 184 | return(result); | ||
| 185 | } catch (ConcurrentModificationException e) { } | ||
| 186 | } | ||
| 187 | throw new ConcurrentModificationException("Too many " | ||
| 188 | + "ConcurrentModificationExceptions"); | ||
| 189 | } | ||
| 190 | } | ||