J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 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 javax.naming.ldap; |
| 27 | |
| 28 | import java.io.IOException; |
| 29 | import javax.naming.*; |
| 30 | import javax.naming.directory.*; |
| 31 | import com.sun.jndi.ldap.Ber; |
| 32 | import com.sun.jndi.ldap.BerDecoder; |
| 33 | import com.sun.jndi.ldap.LdapCtx; |
| 34 | |
| 35 | /** |
| 36 | * Indicates whether the requested sort of search results was successful or not. |
| 37 | * When the result code indicates success then the results have been sorted as |
| 38 | * requested. Otherwise the sort was unsuccessful and additional details |
| 39 | * regarding the cause of the error may have been provided by the server. |
| 40 | * <p> |
| 41 | * The code sample in {@link SortControl} shows how this class may be used. |
| 42 | * <p> |
| 43 | * This class implements the LDAPv3 Response Control for server-side sorting |
| 44 | * as defined in |
| 45 | * <a href="http://www.ietf.org/rfc/rfc2891.txt">RFC 2891</a>. |
| 46 | * |
| 47 | * The control's value has the following ASN.1 definition: |
| 48 | * <pre> |
| 49 | * |
| 50 | * SortResult ::= SEQUENCE { |
| 51 | * sortResult ENUMERATED { |
| 52 | * success (0), -- results are sorted |
| 53 | * operationsError (1), -- server internal failure |
| 54 | * timeLimitExceeded (3), -- timelimit reached before |
| 55 | * -- sorting was completed |
| 56 | * strongAuthRequired (8), -- refused to return sorted |
| 57 | * -- results via insecure |
| 58 | * -- protocol |
| 59 | * adminLimitExceeded (11), -- too many matching entries |
| 60 | * -- for the server to sort |
| 61 | * noSuchAttribute (16), -- unrecognized attribute |
| 62 | * -- type in sort key |
| 63 | * inappropriateMatching (18), -- unrecognized or inappro- |
| 64 | * -- priate matching rule in |
| 65 | * -- sort key |
| 66 | * insufficientAccessRights (50), -- refused to return sorted |
| 67 | * -- results to this client |
| 68 | * busy (51), -- too busy to process |
| 69 | * unwillingToPerform (53), -- unable to sort |
| 70 | * other (80) |
| 71 | * }, |
| 72 | * attributeType [0] AttributeType OPTIONAL } |
| 73 | * |
| 74 | * </pre> |
| 75 | * |
| 76 | * @since 1.5 |
| 77 | * @see SortControl |
| 78 | * @author Vincent Ryan |
| 79 | */ |
| 80 | final public class SortResponseControl extends BasicControl { |
| 81 | |
| 82 | /** |
| 83 | * The server-side sort response control's assigned object identifier |
| 84 | * is 1.2.840.113556.1.4.474. |
| 85 | */ |
| 86 | public static final String OID = "1.2.840.113556.1.4.474"; |
| 87 | |
| 88 | private static final long serialVersionUID = 5142939176006310877L; |
| 89 | |
| 90 | /** |
| 91 | * The sort result code. |
| 92 | * |
| 93 | * @serial |
| 94 | */ |
| 95 | private int resultCode = 0; |
| 96 | |
| 97 | /** |
| 98 | * The ID of the attribute that caused the sort to fail. |
| 99 | * |
| 100 | * @serial |
| 101 | */ |
| 102 | private String badAttrId = null; |
| 103 | |
| 104 | /** |
| 105 | * Constructs a control to indicate the outcome of a sort request. |
| 106 | * |
| 107 | * @param id The control's object identifier string. |
| 108 | * @param criticality The control's criticality. |
| 109 | * @param value The control's ASN.1 BER encoded value. |
| 110 | * It is not cloned - any changes to value |
| 111 | * will affect the contents of the control. |
| 112 | * @exception IOException if an error is encountered |
| 113 | * while decoding the control's value. |
| 114 | */ |
| 115 | public SortResponseControl(String id, boolean criticality, byte[] value) |
| 116 | throws IOException { |
| 117 | |
| 118 | super(id, criticality, value); |
| 119 | |
| 120 | // decode value |
| 121 | BerDecoder ber = new BerDecoder(value, 0, value.length); |
| 122 | |
| 123 | ber.parseSeq(null); |
| 124 | resultCode = ber.parseEnumeration(); |
| 125 | if ((ber.bytesLeft() > 0) && (ber.peekByte() == Ber.ASN_CONTEXT)) { |
| 126 | badAttrId = ber.parseStringWithTag(Ber.ASN_CONTEXT, true, null); |
| 127 | } |
| 128 | } |
| 129 | |
| 130 | /** |
| 131 | * Determines if the search results have been successfully sorted. |
| 132 | * If an error occurred during sorting a NamingException is thrown. |
| 133 | * |
| 134 | * @return true if the search results have been sorted. |
| 135 | */ |
| 136 | public boolean isSorted() { |
| 137 | return (resultCode == 0); // a result code of zero indicates success |
| 138 | } |
| 139 | |
| 140 | /** |
| 141 | * Retrieves the LDAP result code of the sort operation. |
| 142 | * |
| 143 | * @return The result code. A zero value indicates success. |
| 144 | */ |
| 145 | public int getResultCode() { |
| 146 | return resultCode; |
| 147 | } |
| 148 | |
| 149 | /** |
| 150 | * Retrieves the ID of the attribute that caused the sort to fail. |
| 151 | * Returns null if no ID was returned by the server. |
| 152 | * |
| 153 | * @return The possibly null ID of the bad attribute. |
| 154 | */ |
| 155 | public String getAttributeID() { |
| 156 | return badAttrId; |
| 157 | } |
| 158 | |
| 159 | /** |
| 160 | * Retrieves the NamingException appropriate for the result code. |
| 161 | * |
| 162 | * @return A NamingException or null if the result code indicates |
| 163 | * success. |
| 164 | */ |
| 165 | public NamingException getException() { |
| 166 | |
| 167 | return LdapCtx.mapErrorCode(resultCode, null); |
| 168 | } |
| 169 | } |