001/* CollectionCertStoreParameters -- collection-based cert store parameters 002 Copyright (C) 2003 Free Software Foundation, Inc. 003 004This file is part of GNU Classpath. 005 006GNU Classpath is free software; you can redistribute it and/or modify 007it under the terms of the GNU General Public License as published by 008the Free Software Foundation; either version 2, or (at your option) 009any later version. 010 011GNU Classpath is distributed in the hope that it will be useful, but 012WITHOUT ANY WARRANTY; without even the implied warranty of 013MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014General Public License for more details. 015 016You should have received a copy of the GNU General Public License 017along with GNU Classpath; see the file COPYING. If not, write to the 018Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 01902110-1301 USA. 020 021Linking this library statically or dynamically with other modules is 022making a combined work based on this library. Thus, the terms and 023conditions of the GNU General Public License cover the whole 024combination. 025 026As a special exception, the copyright holders of this library give you 027permission to link this library with independent modules to produce an 028executable, regardless of the license terms of these independent 029modules, and to copy and distribute the resulting executable under 030terms of your choice, provided that you also meet, for each linked 031independent module, the terms and conditions of the license of that 032module. An independent module is a module which is not derived from 033or based on this library. If you modify this library, you may extend 034this exception to your version of the library, but you are not 035obligated to do so. If you do not wish to do so, delete this 036exception statement from your version. */ 037 038 039package java.security.cert; 040 041import java.util.ArrayList; 042import java.util.Collection; 043import 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 */ 056public 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}