001/*
002 * Copyright 2009-2017 UnboundID Corp.
003 * All Rights Reserved.
004 */
005/*
006 * Copyright (C) 2009-2017 UnboundID Corp.
007 *
008 * This program is free software; you can redistribute it and/or modify
009 * it under the terms of the GNU General Public License (GPLv2 only)
010 * or the terms of the GNU Lesser General Public License (LGPLv2.1 only)
011 * as published by the Free Software Foundation.
012 *
013 * This program is distributed in the hope that it will be useful,
014 * but WITHOUT ANY WARRANTY; without even the implied warranty of
015 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
016 * GNU General Public License for more details.
017 *
018 * You should have received a copy of the GNU General Public License
019 * along with this program; if not, see <http://www.gnu.org/licenses>.
020 */
021package com.unboundid.ldap.protocol;
022
023
024
025import com.unboundid.asn1.ASN1Buffer;
026import com.unboundid.asn1.ASN1Element;
027import com.unboundid.asn1.ASN1Null;
028import com.unboundid.asn1.ASN1StreamReader;
029import com.unboundid.ldap.sdk.LDAPException;
030import com.unboundid.ldap.sdk.ResultCode;
031import com.unboundid.util.NotMutable;
032import com.unboundid.util.InternalUseOnly;
033import com.unboundid.util.ThreadSafety;
034import com.unboundid.util.ThreadSafetyLevel;
035
036import static com.unboundid.ldap.protocol.ProtocolMessages.*;
037import static com.unboundid.util.Debug.*;
038import static com.unboundid.util.StaticUtils.*;
039
040
041
042/**
043 * This class provides an implementation of an LDAP unbind request protocol op.
044 */
045@InternalUseOnly()
046@NotMutable()
047@ThreadSafety(level=ThreadSafetyLevel.COMPLETELY_THREADSAFE)
048public final class UnbindRequestProtocolOp
049       implements ProtocolOp
050{
051  /**
052   * The serial version UID for this serializable class.
053   */
054  private static final long serialVersionUID = 1703200292192488474L;
055
056
057
058  /**
059   * Creates a new unbind request protocol op.
060   */
061  public UnbindRequestProtocolOp()
062  {
063    // No implementation required.
064  }
065
066
067
068  /**
069   * Creates a new unbind request protocol op read from the provided ASN.1
070   * stream reader.
071   *
072   * @param  reader  The ASN.1 stream reader from which to read the unbind
073   *                 request protocol op.
074   *
075   * @throws  LDAPException  If a problem occurs while reading or parsing the
076   *                         unbind request.
077   */
078  UnbindRequestProtocolOp(final ASN1StreamReader reader)
079       throws LDAPException
080  {
081    try
082    {
083      reader.readNull();
084    }
085    catch (Exception e)
086    {
087      debugException(e);
088
089      throw new LDAPException(ResultCode.DECODING_ERROR,
090           ERR_UNBIND_REQUEST_CANNOT_DECODE.get(getExceptionMessage(e)), e);
091    }
092  }
093
094
095
096  /**
097   * {@inheritDoc}
098   */
099  public byte getProtocolOpType()
100  {
101    return LDAPMessage.PROTOCOL_OP_TYPE_UNBIND_REQUEST;
102  }
103
104
105
106  /**
107   * {@inheritDoc}
108   */
109  public void writeTo(final ASN1Buffer buffer)
110  {
111    buffer.addNull(LDAPMessage.PROTOCOL_OP_TYPE_UNBIND_REQUEST);
112  }
113
114
115
116  /**
117   * {@inheritDoc}
118   */
119  public ASN1Element encodeProtocolOp()
120  {
121    return new ASN1Null(LDAPMessage.PROTOCOL_OP_TYPE_UNBIND_REQUEST);
122  }
123
124
125
126  /**
127   * Decodes the provided ASN.1 element as an unbind request protocol op.
128   *
129   * @param  element  The ASN.1 element to be decoded.
130   *
131   * @return  The decoded unbind request protocol op.
132   *
133   * @throws  LDAPException  If the provided ASN.1 element cannot be decoded as
134   *                         an unbind request protocol op.
135   */
136  public static UnbindRequestProtocolOp decodeProtocolOp(
137                                             final ASN1Element element)
138         throws LDAPException
139  {
140    try
141    {
142      ASN1Null.decodeAsNull(element);
143      return new UnbindRequestProtocolOp();
144    }
145    catch (final Exception e)
146    {
147      debugException(e);
148      throw new LDAPException(ResultCode.DECODING_ERROR,
149           ERR_UNBIND_REQUEST_CANNOT_DECODE.get(getExceptionMessage(e)),
150           e);
151    }
152  }
153
154
155
156  /**
157   * Retrieves a string representation of this protocol op.
158   *
159   * @return  A string representation of this protocol op.
160   */
161  @Override()
162  public String toString()
163  {
164    final StringBuilder buffer = new StringBuilder();
165    toString(buffer);
166    return buffer.toString();
167  }
168
169
170
171  /**
172   * {@inheritDoc}
173   */
174  public void toString(final StringBuilder buffer)
175  {
176    buffer.append("UnbindRequestProtocolOp()");
177  }
178}