001 /*
002 * CDDL HEADER START
003 *
004 * The contents of this file are subject to the terms of the
005 * Common Development and Distribution License, Version 1.0 only
006 * (the "License"). You may not use this file except in compliance
007 * with the License.
008 *
009 * You can obtain a copy of the license at
010 * trunk/opends/resource/legal-notices/OpenDS.LICENSE
011 * or https://OpenDS.dev.java.net/OpenDS.LICENSE.
012 * See the License for the specific language governing permissions
013 * and limitations under the License.
014 *
015 * When distributing Covered Code, include this CDDL HEADER in each
016 * file and include the License file at
017 * trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
018 * add the following below this CDDL HEADER, with the fields enclosed
019 * by brackets "[]" replaced with your own identifying information:
020 * Portions Copyright [yyyy] [name of copyright owner]
021 *
022 * CDDL HEADER END
023 *
024 *
025 * Copyright 2006-2008 Sun Microsystems, Inc.
026 */
027 package org.opends.dsml.protocol;
028
029
030
031 import java.io.IOException;
032
033 import org.opends.messages.Message;
034 import org.opends.server.protocols.asn1.ASN1Exception;
035 import org.opends.server.protocols.asn1.ASN1OctetString;
036 import org.opends.server.protocols.ldap.CompareRequestProtocolOp;
037 import org.opends.server.protocols.ldap.CompareResponseProtocolOp;
038 import org.opends.server.protocols.ldap.LDAPMessage;
039 import org.opends.server.protocols.ldap.ProtocolOp;
040 import org.opends.server.tools.LDAPConnection;
041 import org.opends.server.types.LDAPException;
042
043
044
045 /**
046 * This class provides the functionality for the performing an
047 * LDAP COMPARE operation based on the specified DSML request.
048 */
049 public class DSMLCompareOperation
050 {
051 private LDAPConnection connection;
052
053 /**
054 * Create an instance with the specified LDAP connection.
055 *
056 * @param connection The LDAP connection to send the request on.
057 */
058 public DSMLCompareOperation(LDAPConnection connection)
059 {
060 this.connection = connection;
061 }
062
063 /**
064 * Perform the LDAP COMPARE operation and send the result back to the
065 * client.
066 *
067 * @param objFactory The object factory for this operation.
068 * @param compareRequest The compare request for this operation.
069 *
070 * @return The result of the compare operation.
071 *
072 * @throws IOException If an I/O problem occurs.
073 *
074 * @throws LDAPException If an error occurs while interacting with an LDAP
075 * element.
076 *
077 * @throws ASN1Exception If an error occurs while interacting with an ASN.1
078 * element.
079 */
080 public LDAPResult doOperation(ObjectFactory objFactory,
081 CompareRequest compareRequest)
082 throws IOException, LDAPException, ASN1Exception
083 {
084 LDAPResult compareResponse = objFactory.createLDAPResult();
085 compareResponse.setRequestID(compareRequest.getRequestID());
086
087 // Read the attribute name and value for the compare request.
088 AttributeValueAssertion attrValAssertion = compareRequest.getAssertion();
089 String attrName = attrValAssertion.getName();
090 ASN1OctetString attrValue =
091 new ASN1OctetString(attrValAssertion.getValue());
092
093 ASN1OctetString dnStr = new ASN1OctetString(compareRequest.getDn());
094
095 // Create and send the LDAP compare request to the server.
096 ProtocolOp op = new CompareRequestProtocolOp(dnStr, attrName, attrValue);
097 LDAPMessage msg = new LDAPMessage(DSMLServlet.nextMessageID(), op);
098 connection.getLDAPWriter().writeMessage(msg);
099
100 // Read and decode the LDAP response from the server.
101 LDAPMessage responseMessage = connection.getLDAPReader().readMessage();
102
103 CompareResponseProtocolOp compareOp =
104 responseMessage.getCompareResponseProtocolOp();
105 int resultCode = compareOp.getResultCode();
106 Message errorMessage = compareOp.getErrorMessage();
107
108 // Set the response code and error message for the DSML response.
109 compareResponse.setErrorMessage(
110 errorMessage != null ? errorMessage.toString() : null);
111 ResultCode code = objFactory.createResultCode();
112 code.setCode(resultCode);
113 compareResponse.setResultCode(code);
114
115 if(compareOp.getMatchedDN() != null)
116 {
117 compareResponse.setMatchedDN(compareOp.getMatchedDN().toString());
118 }
119
120 return compareResponse;
121 }
122
123 }
124