001 /* CollectionCertStoreParameters -- collection-based cert store parameters
002 Copyright (C) 2003 Free Software Foundation, Inc.
003
004 This file is part of GNU Classpath.
005
006 GNU Classpath is free software; you can redistribute it and/or modify
007 it under the terms of the GNU General Public License as published by
008 the Free Software Foundation; either version 2, or (at your option)
009 any later version.
010
011 GNU Classpath is distributed in the hope that it will be useful, but
012 WITHOUT ANY WARRANTY; without even the implied warranty of
013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
014 General Public License for more details.
015
016 You should have received a copy of the GNU General Public License
017 along with GNU Classpath; see the file COPYING. If not, write to the
018 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
019 02110-1301 USA.
020
021 Linking this library statically or dynamically with other modules is
022 making a combined work based on this library. Thus, the terms and
023 conditions of the GNU General Public License cover the whole
024 combination.
025
026 As a special exception, the copyright holders of this library give you
027 permission to link this library with independent modules to produce an
028 executable, regardless of the license terms of these independent
029 modules, and to copy and distribute the resulting executable under
030 terms of your choice, provided that you also meet, for each linked
031 independent module, the terms and conditions of the license of that
032 module. An independent module is a module which is not derived from
033 or based on this library. If you modify this library, you may extend
034 this exception to your version of the library, but you are not
035 obligated to do so. If you do not wish to do so, delete this
036 exception statement from your version. */
037
038
039 package java.security.cert;
040
041 import java.util.ArrayList;
042 import java.util.Collection;
043 import java.util.Collections;
044
045 /**
046 * An implementation of {@link CertStoreParameters} with a simple,
047 * in-memory {@link Collection} of certificates and certificate
048 * revocation list.
049 *
050 * <p>Note that this class is not thread-safe, and its underlying
051 * collection may be changed at any time.
052 *
053 * @see CertStore
054 * @since 1.4
055 */
056 public class CollectionCertStoreParameters implements CertStoreParameters
057 {
058
059 // Constants and fields.
060 // ------------------------------------------------------------------------
061
062 /** The underlying collection. */
063 private final Collection collection;
064
065 // Constructors.
066 // ------------------------------------------------------------------------
067
068 /**
069 * Creates a new CollectionCertStoreParameters with an empty,
070 * immutable collection.
071 */
072 public CollectionCertStoreParameters()
073 {
074 this(Collections.EMPTY_LIST);
075 }
076
077 /**
078 * Create a new CollectionCertStoreParameters with the specified
079 * collection. The argument is not copied, and subsequent changes to
080 * the collection will change this class's collection.
081 *
082 * @param collection The collection.
083 * @throws NullPointerException If <i>collection</i> is null.
084 */
085 public CollectionCertStoreParameters(Collection<?> collection)
086 {
087 if (collection == null)
088 throw new NullPointerException();
089 this.collection = collection;
090 }
091
092 // Instance methods.
093 // ------------------------------------------------------------------------
094
095 public Object clone()
096 {
097 return new CollectionCertStoreParameters(new ArrayList(collection));
098 }
099
100 /**
101 * Return the underlying collection. The collection is not copied
102 * before being returned, so callers may update the collection that is
103 * returned.
104 *
105 * @return The collection.
106 */
107 public Collection<?> getCollection()
108 {
109 return collection;
110 }
111
112 /**
113 * Return a string representation of these parameters.
114 *
115 * @return The string representation of these parameters.
116 */
117 public String toString()
118 {
119 return "CollectionCertStoreParameters: [ collection: "
120 + collection + " ]";
121 }
122 }