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1   /*
2    *  Licensed to the Apache Software Foundation (ASF) under one
3    *  or more contributor license agreements.  See the NOTICE file
4    *  distributed with this work for additional information
5    *  regarding copyright ownership.  The ASF licenses this file
6    *  to you under the Apache License, Version 2.0 (the
7    *  "License"); you may not use this file except in compliance
8    *  with the License.  You may obtain a copy of the License at
9    *  
10   *    https://www.apache.org/licenses/LICENSE-2.0
11   *  
12   *  Unless required by applicable law or agreed to in writing,
13   *  software distributed under the License is distributed on an
14   *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   *  KIND, either express or implied.  See the License for the
16   *  specific language governing permissions and limitations
17   *  under the License. 
18   *  
19   */
20  
21  package org.apache.directory.api.ldap.model.message;
22  
23  
24  import org.apache.directory.api.ldap.model.name.Dn;
25  
26  
27  /**
28   * LDAPv3 result structure embedded into Responses. See section 4.1.9 in <a
29   * href="http://www.ietf.org/rfc/rfc4511.txt">RFC 4511</a> for a description of 
30   * the LDAPResult ASN.1 structure, here's a snippet from it:
31   * 
32   * <pre>
33   *   The LDAPResult is the construct used in this protocol to return
34   *   success or failure indications from servers to clients. To various
35   *  requests, servers will return responses containing the elements found
36   *  in LDAPResult to indicate the final status of the protocol operation
37   *  request.
38  
39   * LDAPResult ::= SEQUENCE {
40   *     resultCode         ENUMERATED {
41   *         success                      (0),
42   *         operationsError              (1),
43   *         protocolError                (2),
44   *         timeLimitExceeded            (3),
45   *         sizeLimitExceeded            (4),
46   *         compareFalse                 (5),
47   *         compareTrue                  (6),
48   *         authMethodNotSupported       (7),
49   *         strongerAuthRequired         (8),
50   *              -- 9 reserved --
51   *         referral                     (10),
52   *         adminLimitExceeded           (11),
53   *         unavailableCriticalExtension (12),
54   *         confidentialityRequired      (13),
55   *         saslBindInProgress           (14),
56   *         noSuchAttribute              (16),
57   *         undefinedAttributeType       (17),
58   *         inappropriateMatching        (18),
59   *         constraintViolation          (19),
60   *         attributeOrValueExists       (20),
61   *         invalidAttributeSyntax       (21),
62   *              -- 22-31 unused --
63   *         noSuchObject                 (32),
64   *         aliasProblem                 (33),
65   *         invalidDNSyntax              (34),
66   *              -- 35 reserved for undefined isLeaf --
67   *         aliasDereferencingProblem    (36),
68   *              -- 37-47 unused --
69   *         inappropriateAuthentication  (48),
70   *         invalidCredentials           (49),
71   *         insufficientAccessRights     (50),
72   *         busy                         (51),
73   *         unavailable                  (52),
74   *         unwillingToPerform           (53),
75   *         loopDetect                   (54),
76   *              -- 55-63 unused --
77   *         namingViolation              (64),
78   *         objectClassViolation         (65),
79   *         notAllowedOnNonLeaf          (66),
80   *         notAllowedOnRDN              (67),
81   *         entryAlreadyExists           (68),
82   *         objectClassModsProhibited    (69),
83   *              -- 70 reserved for CLDAP --
84   *         affectsMultipleDSAs          (71),
85   *              -- 72-79 unused --
86   *         other                        (80),
87   *         ...  },
88   *     matchedDN          LDAPDN,
89   *     diagnosticMessage  LDAPString,
90   *     referral           [3] Referral OPTIONAL }
91   * </pre>
92   * 
93   * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
94   */
95  public interface LdapResult
96  {
97      /**
98       * Gets the result code enumeration associated with the response.
99       * Corresponds to the <b> resultCode </b> field within the LDAPResult ASN.1
100      * structure.
101      * 
102      * @return the result code enum value.
103      */
104     ResultCodeEnum getResultCode();
105 
106 
107     /**
108      * Sets the result code enumeration associated with the response.
109      * Corresponds to the <b> resultCode </b> field within the LDAPResult ASN.1
110      * structure.
111      * 
112      * @param resultCode the result code enum value.
113      */
114     void setResultCode( ResultCodeEnum resultCode );
115 
116 
117     /**
118      * Gets the lowest entry in the directory that was matched. For result codes
119      * of noSuchObject, aliasProblem, invalidDNSyntax and
120      * aliasDereferencingProblem, the matchedDN field is set to the name of the
121      * lowest entry (object or alias) in the directory that was matched. If no
122      * aliases were dereferenced while attempting to locate the entry, this will
123      * be a truncated form of the name provided, or if aliases were
124      * dereferenced, of the resulting name, as defined in section 12.5 of X.511
125      * [8]. The matchedDN field is to be set to a zero length string with all
126      * other result codes.
127      * 
128      * @return the Dn of the lowest matched entry.
129      */
130     Dn getMatchedDn();
131 
132 
133     /**
134      * Sets the lowest entry in the directory that was matched.
135      * 
136      * @see #getMatchedDn()
137      * @param dn the Dn of the lowest matched entry.
138      */
139     void setMatchedDn( Dn dn );
140 
141 
142     /**
143      * Gets the descriptive diagnostic message associated with the error code. May be
144      * null for SUCCESS, COMPARETRUE, COMPAREFALSE and REFERRAL operations.
145      * 
146      * @return the descriptive diagnostic message.
147      */
148     String getDiagnosticMessage();
149 
150 
151     /**
152      * Sets the descriptive diagnostic message associated with the error code. May be
153      * null for SUCCESS, COMPARETRUE, and COMPAREFALSE operations.
154      * 
155      * @param diagnosticMessage the descriptive diagnostic message.
156      */
157     void setDiagnosticMessage( String diagnosticMessage );
158 
159 
160     /**
161      * Gets whether or not this result represents a Referral. For referrals the
162      * error code is set to REFERRAL and the referral property is not null.
163      * 
164      * @return true if this result represents a referral.
165      */
166     boolean isReferral();
167 
168 
169     /**
170      * Gets the Referral associated with this LdapResult if the resultCode
171      * property is set to the REFERRAL ResultCodeEnum.
172      * 
173      * @return the referral on REFERRAL resultCode, null on all others.
174      */
175     Referral getReferral();
176 
177 
178     /**
179      * Sets the Referral associated with this LdapResult if the resultCode
180      * property is set to the REFERRAL ResultCodeEnum. Setting this property
181      * will result in a true return from isReferral and the resultCode should be
182      * set to REFERRAL.
183      * 
184      * @param referral optional referral on REFERRAL errors.
185      */
186     void setReferral( Referral referral );
187 
188 
189     /**
190      * Tells if the LdapResult is a success, with no added information. The
191      * MatchedDn will be empty, as the diagnostic message and the referral.
192      * The ResultCode will always be 0.
193      * 
194      * @return True if the LdapResult is SUCCESS.
195      */
196     boolean isDefaultSuccess();
197 }