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 java.util.ArrayList;
026import java.util.Collections;
027import java.util.Iterator;
028import java.util.List;
029
030import com.unboundid.asn1.ASN1Buffer;
031import com.unboundid.asn1.ASN1BufferSequence;
032import com.unboundid.asn1.ASN1Element;
033import com.unboundid.asn1.ASN1OctetString;
034import com.unboundid.asn1.ASN1Sequence;
035import com.unboundid.asn1.ASN1StreamReader;
036import com.unboundid.asn1.ASN1StreamReaderSequence;
037import com.unboundid.ldap.sdk.Control;
038import com.unboundid.ldap.sdk.LDAPException;
039import com.unboundid.ldap.sdk.Modification;
040import com.unboundid.ldap.sdk.ModifyRequest;
041import com.unboundid.ldap.sdk.ResultCode;
042import com.unboundid.util.NotMutable;
043import com.unboundid.util.InternalUseOnly;
044import com.unboundid.util.ThreadSafety;
045import com.unboundid.util.ThreadSafetyLevel;
046
047import static com.unboundid.ldap.protocol.ProtocolMessages.*;
048import static com.unboundid.util.Debug.*;
049import static com.unboundid.util.StaticUtils.*;
050import static com.unboundid.util.Validator.*;
051
052
053
054/**
055 * This class provides an implementation of an LDAP modify request protocol op.
056 */
057@InternalUseOnly()
058@NotMutable()
059@ThreadSafety(level=ThreadSafetyLevel.COMPLETELY_THREADSAFE)
060public final class ModifyRequestProtocolOp
061       implements ProtocolOp
062{
063  /**
064   * The serial version UID for this serializable class.
065   */
066  private static final long serialVersionUID = -6294739625253826184L;
067
068
069
070  // The list of modifications for this modify request.
071  private final List<Modification> modifications;
072
073  // The entry DN for this modify request.
074  private final String dn;
075
076
077
078  /**
079   * Creates a new modify request protocol op with the provided information.
080   *
081   * @param  dn             The entry DN for this modify request.
082   * @param  modifications  The list of modifications to include in this modify
083   *                        request.
084   */
085  public ModifyRequestProtocolOp(final String dn,
086                                 final List<Modification> modifications)
087  {
088    this.dn            = dn;
089    this.modifications = Collections.unmodifiableList(modifications);
090  }
091
092
093
094  /**
095   * Creates a new modify request protocol op from the provided modify request
096   * object.
097   *
098   * @param  request  The modify request object to use to create this protocol
099   *                  op.
100   */
101  public ModifyRequestProtocolOp(final ModifyRequest request)
102  {
103    dn            = request.getDN();
104    modifications = request.getModifications();
105  }
106
107
108
109  /**
110   * Creates a new modify request protocol op read from the provided ASN.1
111   * stream reader.
112   *
113   * @param  reader  The ASN.1 stream reader from which to read the modify
114   *                 request protocol op.
115   *
116   * @throws  LDAPException  If a problem occurs while reading or parsing the
117   *                         modify request.
118   */
119  ModifyRequestProtocolOp(final ASN1StreamReader reader)
120       throws LDAPException
121  {
122    try
123    {
124      reader.beginSequence();
125      dn = reader.readString();
126      ensureNotNull(dn);
127
128      final ArrayList<Modification> mods = new ArrayList<Modification>(5);
129      final ASN1StreamReaderSequence modSequence = reader.beginSequence();
130      while (modSequence.hasMoreElements())
131      {
132        mods.add(Modification.readFrom(reader));
133      }
134
135      modifications = Collections.unmodifiableList(mods);
136    }
137    catch (LDAPException le)
138    {
139      debugException(le);
140      throw le;
141    }
142    catch (Exception e)
143    {
144      debugException(e);
145
146      throw new LDAPException(ResultCode.DECODING_ERROR,
147           ERR_MODIFY_REQUEST_CANNOT_DECODE.get(getExceptionMessage(e)), e);
148    }
149  }
150
151
152
153  /**
154   * Retrieves the target entry DN for this modify request.
155   *
156   * @return  The target entry DN for this modify request.
157   */
158  public String getDN()
159  {
160    return dn;
161  }
162
163
164
165  /**
166   * Retrieves the list of modifications for this modify request.
167   *
168   * @return  The list of modifications for this modify request.
169   */
170  public List<Modification> getModifications()
171  {
172    return modifications;
173  }
174
175
176
177  /**
178   * {@inheritDoc}
179   */
180  public byte getProtocolOpType()
181  {
182    return LDAPMessage.PROTOCOL_OP_TYPE_MODIFY_REQUEST;
183  }
184
185
186
187  /**
188   * {@inheritDoc}
189   */
190  public ASN1Element encodeProtocolOp()
191  {
192    final ArrayList<ASN1Element> modElements =
193         new ArrayList<ASN1Element>(modifications.size());
194    for (final Modification m : modifications)
195    {
196      modElements.add(m.encode());
197    }
198
199    return new ASN1Sequence(LDAPMessage.PROTOCOL_OP_TYPE_MODIFY_REQUEST,
200         new ASN1OctetString(dn),
201         new ASN1Sequence(modElements));
202  }
203
204
205
206  /**
207   * Decodes the provided ASN.1 element as a modify request protocol op.
208   *
209   * @param  element  The ASN.1 element to be decoded.
210   *
211   * @return  The decoded modify request protocol op.
212   *
213   * @throws  LDAPException  If the provided ASN.1 element cannot be decoded as
214   *                         a modify request protocol op.
215   */
216  public static ModifyRequestProtocolOp decodeProtocolOp(
217                                             final ASN1Element element)
218         throws LDAPException
219  {
220    try
221    {
222      final ASN1Element[] elements =
223           ASN1Sequence.decodeAsSequence(element).elements();
224      final String dn =
225           ASN1OctetString.decodeAsOctetString(elements[0]).stringValue();
226
227      final ASN1Element[] modElements =
228           ASN1Sequence.decodeAsSequence(elements[1]).elements();
229      final ArrayList<Modification> mods =
230           new ArrayList<Modification>(modElements.length);
231      for (final ASN1Element e : modElements)
232      {
233        mods.add(Modification.decode(ASN1Sequence.decodeAsSequence(e)));
234      }
235
236      return new ModifyRequestProtocolOp(dn, mods);
237    }
238    catch (final Exception e)
239    {
240      debugException(e);
241      throw new LDAPException(ResultCode.DECODING_ERROR,
242           ERR_MODIFY_REQUEST_CANNOT_DECODE.get(getExceptionMessage(e)),
243           e);
244    }
245  }
246
247
248
249  /**
250   * {@inheritDoc}
251   */
252  public void writeTo(final ASN1Buffer writer)
253  {
254    final ASN1BufferSequence opSequence =
255         writer.beginSequence(LDAPMessage.PROTOCOL_OP_TYPE_MODIFY_REQUEST);
256    writer.addOctetString(dn);
257
258    final ASN1BufferSequence modSequence = writer.beginSequence();
259    for (final Modification m : modifications)
260    {
261      m.writeTo(writer);
262    }
263    modSequence.end();
264    opSequence.end();
265  }
266
267
268
269  /**
270   * Creates a modify request from this protocol op.
271   *
272   * @param  controls  The set of controls to include in the modify request.
273   *                   It may be empty or {@code null} if no controls should be
274   *                   included.
275   *
276   * @return  The modify request that was created.
277   */
278  public ModifyRequest toModifyRequest(final Control... controls)
279  {
280    return new ModifyRequest(dn, modifications, controls);
281  }
282
283
284
285  /**
286   * Retrieves a string representation of this protocol op.
287   *
288   * @return  A string representation of this protocol op.
289   */
290  @Override()
291  public String toString()
292  {
293    final StringBuilder buffer = new StringBuilder();
294    toString(buffer);
295    return buffer.toString();
296  }
297
298
299
300  /**
301   * {@inheritDoc}
302   */
303  public void toString(final StringBuilder buffer)
304  {
305    buffer.append("ModifyRequestProtocolOp(dn='");
306    buffer.append(dn);
307    buffer.append("', mods={");
308
309    final Iterator<Modification> iterator = modifications.iterator();
310    while (iterator.hasNext())
311    {
312      iterator.next().toString(buffer);
313      if (iterator.hasNext())
314      {
315        buffer.append(',');
316      }
317    }
318
319    buffer.append("})");
320  }
321}