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| 1 | /* | ||
| 2 | * Copyright (c) 2000, 2003, 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.util.Set; | ||
| 29 | |||
| 30 | import java.security.InvalidAlgorithmParameterException; | ||
| 31 | import java.security.KeyStore; | ||
| 32 | import java.security.KeyStoreException; | ||
| 33 | import java.security.cert.*; | ||
| 34 | |||
| 35 | /** | ||
| 36 | * This class specifies the set of parameters used as input for the Sun | ||
| 37 | * certification path build algorithm. It is identical to PKIXBuilderParameters | ||
| 38 | * with the addition of a <code>buildForward</code> parameter which allows | ||
| 39 | * the caller to specify whether or not the path should be constructed in | ||
| 40 | * the forward direction. | ||
| 41 | * | ||
| 42 | * The default for the <code>buildForward</code> parameter is | ||
| 43 | * true, which means that the build algorithm should construct paths | ||
| 44 | * from the target subject back to the trusted anchor. | ||
| 45 | * | ||
| 46 | * @since 1.4 | ||
| 47 | * @author Sean Mullan | ||
| 48 | * @author Yassir Elley | ||
| 49 | */ | ||
| 50 | public class SunCertPathBuilderParameters extends PKIXBuilderParameters { | ||
| 51 | |||
| 52 | private boolean buildForward = true; | ||
| 53 | |||
| 54 | /** | ||
| 55 | * Creates an instance of <code>SunCertPathBuilderParameters</code> with the | ||
| 56 | * specified parameter values. | ||
| 57 | * | ||
| 58 | * @param trustAnchors a <code>Set</code> of <code>TrustAnchor</code>s | ||
| 59 | * @param targetConstraints a <code>CertSelector</code> specifying the | ||
| 60 | * constraints on the target certificate | ||
| 61 | * @throws InvalidAlgorithmParameterException if the specified | ||
| 62 | * <code>Set</code> is empty <code>(trustAnchors.isEmpty() == true)</code> | ||
| 63 | * @throws NullPointerException if the specified <code>Set</code> is | ||
| 64 | * <code>null</code> | ||
| 65 | * @throws ClassCastException if any of the elements in the <code>Set</code> | ||
| 66 | * are not of type <code>java.security.cert.TrustAnchor</code> | ||
| 67 | */ | ||
| 68 | public SunCertPathBuilderParameters(Set<TrustAnchor> trustAnchors, | ||
| 69 | CertSelector targetConstraints) throws InvalidAlgorithmParameterException | ||
| 70 | { | ||
| 71 | super(trustAnchors, targetConstraints); | ||
| 72 | setBuildForward(true); | ||
| 73 | } | ||
| 74 | |||
| 75 | /** | ||
| 76 | * Creates an instance of <code>SunCertPathBuilderParameters</code> that | ||
| 77 | * uses the specified <code>KeyStore</code> to populate the set | ||
| 78 | * of most-trusted CA certificates. | ||
| 79 | * | ||
| 80 | * @param keystore A keystore from which the set of most-trusted | ||
| 81 | * CA certificates will be populated. | ||
| 82 | * @param targetConstraints a <code>CertSelector</code> specifying the | ||
| 83 | * constraints on the target certificate | ||
| 84 | * @throws KeyStoreException if the keystore has not been initialized. | ||
| 85 | * @throws InvalidAlgorithmParameterException if the keystore does | ||
| 86 | * not contain at least one trusted certificate entry | ||
| 87 | * @throws NullPointerException if the keystore is <code>null</code> | ||
| 88 | */ | ||
| 89 | public SunCertPathBuilderParameters(KeyStore keystore, | ||
| 90 | CertSelector targetConstraints) | ||
| 91 | throws KeyStoreException, InvalidAlgorithmParameterException | ||
| 92 | { | ||
| 93 | super(keystore, targetConstraints); | ||
| 94 | setBuildForward(true); | ||
| 95 | } | ||
| 96 | |||
| 97 | /** | ||
| 98 | * Returns the value of the buildForward flag. | ||
| 99 | * | ||
| 100 | * @return the value of the buildForward flag | ||
| 101 | */ | ||
| 102 | public boolean getBuildForward() { | ||
| 103 | return this.buildForward; | ||
| 104 | } | ||
| 105 | |||
| 106 | /** | ||
| 107 | * Sets the value of the buildForward flag. If true, paths | ||
| 108 | * are built from the target subject to the trusted anchor. | ||
| 109 | * If false, paths are built from the trusted anchor to the | ||
| 110 | * target subject. The default value if not specified is true. | ||
| 111 | * | ||
| 112 | * @param buildForward the value of the buildForward flag | ||
| 113 | */ | ||
| 114 | public void setBuildForward(boolean buildForward) { | ||
| 115 | this.buildForward = buildForward; | ||
| 116 | } | ||
| 117 | |||
| 118 | /** | ||
| 119 | * Returns a formatted string describing the parameters. | ||
| 120 | * | ||
| 121 | * @return a formatted string describing the parameters. | ||
| 122 | */ | ||
| 123 | public String toString() { | ||
| 124 | StringBuffer sb = new StringBuffer(); | ||
| 125 | sb.append("[\n"); | ||
| 126 | sb.append(super.toString()); | ||
| 127 | sb.append(" Build Forward Flag: " + String.valueOf(buildForward) + "\n"); | ||
| 128 | sb.append("]\n"); | ||
| 129 | return sb.toString(); | ||
| 130 | } | ||
| 131 | } | ||