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The UnboundID LDAP SDK for Java is a fast, comprehensive, and easy-to-use
Java API for communicating with LDAP directory servers and performing
related tasks like reading and writing LDIF, encoding and decoding data
using base64 and ASN.1 BER, and performing secure communication. This
package contains the Standard Edition of the LDAP SDK, which is a
complete, general-purpose library for communicating with LDAPv3 directory
servers.
The newest version!
/*
* Copyright 2007-2024 Ping Identity Corporation
* All Rights Reserved.
*/
/*
* Copyright 2007-2024 Ping Identity Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* Copyright (C) 2007-2024 Ping Identity Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License (GPLv2 only)
* or the terms of the GNU Lesser General Public License (LGPLv2.1 only)
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see .
*/
package com.unboundid.ldap.sdk;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Timer;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.TimeUnit;
import java.util.logging.Level;
import com.unboundid.asn1.ASN1Buffer;
import com.unboundid.asn1.ASN1BufferSequence;
import com.unboundid.asn1.ASN1Element;
import com.unboundid.asn1.ASN1OctetString;
import com.unboundid.asn1.ASN1Sequence;
import com.unboundid.ldap.protocol.LDAPMessage;
import com.unboundid.ldap.protocol.LDAPResponse;
import com.unboundid.ldap.protocol.ProtocolOp;
import com.unboundid.ldif.LDIFChangeRecord;
import com.unboundid.ldif.LDIFException;
import com.unboundid.ldif.LDIFModifyChangeRecord;
import com.unboundid.ldif.LDIFReader;
import com.unboundid.util.Debug;
import com.unboundid.util.InternalUseOnly;
import com.unboundid.util.Mutable;
import com.unboundid.util.NotNull;
import com.unboundid.util.Nullable;
import com.unboundid.util.StaticUtils;
import com.unboundid.util.ThreadSafety;
import com.unboundid.util.ThreadSafetyLevel;
import com.unboundid.util.Validator;
import static com.unboundid.ldap.sdk.LDAPMessages.*;
/**
* This class implements the processing necessary to perform an LDAPv3 modify
* operation, which can be used to update an entry in the directory server. A
* modify request contains the DN of the entry to modify, as well as one or more
* changes to apply to that entry. See the {@link Modification} class for more
* information about the types of modifications that may be processed.
*
* A modify request can be created with a DN and set of modifications, but it
* can also be as a list of the lines that comprise the LDIF representation of
* the modification as described in
* RFC 2849. For example, the
* following code demonstrates creating a modify request from the LDIF
* representation of the modification:
*
* ModifyRequest modifyRequest = new ModifyRequest(
* "dn: dc=example,dc=com",
* "changetype: modify",
* "replace: description",
* "description: This is the new description.");
*
*
* {@code ModifyRequest} objects are mutable and therefore can be altered and
* re-used for multiple requests. Note, however, that {@code ModifyRequest}
* objects are not threadsafe and therefore a single {@code ModifyRequest}
* object instance should not be used to process multiple requests at the same
* time.
*/
@Mutable()
@ThreadSafety(level=ThreadSafetyLevel.NOT_THREADSAFE)
public final class ModifyRequest
extends UpdatableLDAPRequest
implements ReadOnlyModifyRequest, ResponseAcceptor, ProtocolOp
{
/**
* The serial version UID for this serializable class.
*/
private static final long serialVersionUID = -4747622844001634758L;
// The queue that will be used to receive response messages from the server.
@NotNull private final LinkedBlockingQueue responseQueue =
new LinkedBlockingQueue<>();
// The set of modifications to perform.
@NotNull private final ArrayList modifications;
// The message ID from the last LDAP message sent from this request.
private int messageID = -1;
// The DN of the entry to modify.
@NotNull private String dn;
/**
* Creates a new modify request with the provided information.
*
* @param dn The DN of the entry to modify. It must not be {@code null}.
* @param mod The modification to apply to the entry. It must not be
* {@code null}.
*/
public ModifyRequest(@NotNull final String dn,
@NotNull final Modification mod)
{
super(null);
Validator.ensureNotNull(dn, mod);
this.dn = dn;
modifications = new ArrayList<>(1);
modifications.add(mod);
}
/**
* Creates a new modify request with the provided information.
*
* @param dn The DN of the entry to modify. It must not be {@code null}.
* @param mods The set of modifications to apply to the entry. It must not
* be {@code null} or empty.
*/
public ModifyRequest(@NotNull final String dn,
@NotNull final Modification... mods)
{
super(null);
Validator.ensureNotNull(dn, mods);
Validator.ensureFalse(mods.length == 0,
"ModifyRequest.mods must not be empty.");
this.dn = dn;
modifications = new ArrayList<>(mods.length);
modifications.addAll(Arrays.asList(mods));
}
/**
* Creates a new modify request with the provided information.
*
* @param dn The DN of the entry to modify. It must not be {@code null}.
* @param mods The set of modifications to apply to the entry. It must not
* be {@code null} or empty.
*/
public ModifyRequest(@NotNull final String dn,
@NotNull final List mods)
{
super(null);
Validator.ensureNotNull(dn, mods);
Validator.ensureFalse(mods.isEmpty(),
"ModifyRequest.mods must not be empty.");
this.dn = dn;
modifications = new ArrayList<>(mods);
}
/**
* Creates a new modify request with the provided information.
*
* @param dn The DN of the entry to modify. It must not be {@code null}.
* @param mod The modification to apply to the entry. It must not be
* {@code null}.
*/
public ModifyRequest(@NotNull final DN dn, @NotNull final Modification mod)
{
super(null);
Validator.ensureNotNull(dn, mod);
this.dn = dn.toString();
modifications = new ArrayList<>(1);
modifications.add(mod);
}
/**
* Creates a new modify request with the provided information.
*
* @param dn The DN of the entry to modify. It must not be {@code null}.
* @param mods The set of modifications to apply to the entry. It must not
* be {@code null} or empty.
*/
public ModifyRequest(@NotNull final DN dn,
@NotNull final Modification... mods)
{
super(null);
Validator.ensureNotNull(dn, mods);
Validator.ensureFalse(mods.length == 0,
"ModifyRequest.mods must not be empty.");
this.dn = dn.toString();
modifications = new ArrayList<>(mods.length);
modifications.addAll(Arrays.asList(mods));
}
/**
* Creates a new modify request with the provided information.
*
* @param dn The DN of the entry to modify. It must not be {@code null}.
* @param mods The set of modifications to apply to the entry. It must not
* be {@code null} or empty.
*/
public ModifyRequest(@NotNull final DN dn,
@NotNull final List mods)
{
super(null);
Validator.ensureNotNull(dn, mods);
Validator.ensureFalse(mods.isEmpty(),
"ModifyRequest.mods must not be empty.");
this.dn = dn.toString();
modifications = new ArrayList<>(mods);
}
/**
* Creates a new modify request with the provided information.
*
* @param dn The DN of the entry to modify. It must not be
* {@code null}.
* @param mod The modification to apply to the entry. It must not be
* {@code null}.
* @param controls The set of controls to include in the request.
*/
public ModifyRequest(@NotNull final String dn,
@NotNull final Modification mod,
@Nullable final Control[] controls)
{
super(controls);
Validator.ensureNotNull(dn, mod);
this.dn = dn;
modifications = new ArrayList<>(1);
modifications.add(mod);
}
/**
* Creates a new modify request with the provided information.
*
* @param dn The DN of the entry to modify. It must not be
* {@code null}.
* @param mods The set of modifications to apply to the entry. It must
* not be {@code null} or empty.
* @param controls The set of controls to include in the request.
*/
public ModifyRequest(@NotNull final String dn,
@NotNull final Modification[] mods,
@Nullable final Control[] controls)
{
super(controls);
Validator.ensureNotNull(dn, mods);
Validator.ensureFalse(mods.length == 0,
"ModifyRequest.mods must not be empty.");
this.dn = dn;
modifications = new ArrayList<>(mods.length);
modifications.addAll(Arrays.asList(mods));
}
/**
* Creates a new modify request with the provided information.
*
* @param dn The DN of the entry to modify. It must not be
* {@code null}.
* @param mods The set of modifications to apply to the entry. It must
* not be {@code null} or empty.
* @param controls The set of controls to include in the request.
*/
public ModifyRequest(@NotNull final String dn,
@NotNull final List mods,
@Nullable final Control[] controls)
{
super(controls);
Validator.ensureNotNull(dn, mods);
Validator.ensureFalse(mods.isEmpty(),
"ModifyRequest.mods must not be empty.");
this.dn = dn;
modifications = new ArrayList<>(mods);
}
/**
* Creates a new modify request with the provided information.
*
* @param dn The DN of the entry to modify. It must not be
* {@code null}.
* @param mod The modification to apply to the entry. It must not be
* {@code null}.
* @param controls The set of controls to include in the request.
*/
public ModifyRequest(@NotNull final DN dn, @NotNull final Modification mod,
@Nullable final Control[] controls)
{
super(controls);
Validator.ensureNotNull(dn, mod);
this.dn = dn.toString();
modifications = new ArrayList<>(1);
modifications.add(mod);
}
/**
* Creates a new modify request with the provided information.
*
* @param dn The DN of the entry to modify. It must not be
* {@code null}.
* @param mods The set of modifications to apply to the entry. It must
* not be {@code null} or empty.
* @param controls The set of controls to include in the request.
*/
public ModifyRequest(@NotNull final DN dn, @NotNull final Modification[] mods,
@Nullable final Control[] controls)
{
super(controls);
Validator.ensureNotNull(dn, mods);
Validator.ensureFalse(mods.length == 0,
"ModifyRequest.mods must not be empty.");
this.dn = dn.toString();
modifications = new ArrayList<>(mods.length);
modifications.addAll(Arrays.asList(mods));
}
/**
* Creates a new modify request with the provided information.
*
* @param dn The DN of the entry to modify. It must not be
* {@code null}.
* @param mods The set of modifications to apply to the entry. It must
* not be {@code null} or empty.
* @param controls The set of controls to include in the request.
*/
public ModifyRequest(@NotNull final DN dn,
@NotNull final List mods,
@Nullable final Control[] controls)
{
super(controls);
Validator.ensureNotNull(dn, mods);
Validator.ensureFalse(mods.isEmpty(),
"ModifyRequest.mods must not be empty.");
this.dn = dn.toString();
modifications = new ArrayList<>(mods);
}
/**
* Creates a new modify request from the provided LDIF representation of the
* changes.
*
* @param ldifModificationLines The lines that comprise an LDIF
* representation of a modify change record.
* It must not be {@code null} or empty.
*
* @throws LDIFException If the provided set of lines cannot be parsed as an
* LDIF modify change record.
*/
public ModifyRequest(@NotNull final String... ldifModificationLines)
throws LDIFException
{
super(null);
final LDIFChangeRecord changeRecord =
LDIFReader.decodeChangeRecord(ldifModificationLines);
if (! (changeRecord instanceof LDIFModifyChangeRecord))
{
throw new LDIFException(ERR_MODIFY_INVALID_LDIF.get(), 0, false,
ldifModificationLines, null);
}
final LDIFModifyChangeRecord modifyRecord =
(LDIFModifyChangeRecord) changeRecord;
final ModifyRequest r = modifyRecord.toModifyRequest();
dn = r.dn;
modifications = r.modifications;
}
/**
* {@inheritDoc}
*/
@Override()
@NotNull()
public String getDN()
{
return dn;
}
/**
* Specifies the DN of the entry to modify.
*
* @param dn The DN of the entry to modify. It must not be {@code null}.
*/
public void setDN(@NotNull final String dn)
{
Validator.ensureNotNull(dn);
this.dn = dn;
}
/**
* Specifies the DN of the entry to modify.
*
* @param dn The DN of the entry to modify. It must not be {@code null}.
*/
public void setDN(@NotNull final DN dn)
{
Validator.ensureNotNull(dn);
this.dn = dn.toString();
}
/**
* {@inheritDoc}
*/
@Override()
@NotNull()
public List getModifications()
{
return Collections.unmodifiableList(modifications);
}
/**
* Adds the provided modification to the set of modifications for this modify
* request.
*
* @param mod The modification to be added. It must not be {@code null}.
*/
public void addModification(@NotNull final Modification mod)
{
Validator.ensureNotNull(mod);
modifications.add(mod);
}
/**
* Removes the provided modification from the set of modifications for this
* modify request.
*
* @param mod The modification to be removed. It must not be {@code null}.
*
* @return {@code true} if the specified modification was found and removed,
* or {@code false} if not.
*/
public boolean removeModification(@NotNull final Modification mod)
{
Validator.ensureNotNull(mod);
return modifications.remove(mod);
}
/**
* Replaces the existing set of modifications for this modify request with the
* provided modification.
*
* @param mod The modification to use for this modify request. It must not
* be {@code null}.
*/
public void setModifications(@NotNull final Modification mod)
{
Validator.ensureNotNull(mod);
modifications.clear();
modifications.add(mod);
}
/**
* Replaces the existing set of modifications for this modify request with the
* provided modifications.
*
* @param mods The set of modification to use for this modify request. It
* must not be {@code null} or empty.
*/
public void setModifications(@NotNull final Modification[] mods)
{
Validator.ensureNotNull(mods);
Validator.ensureFalse(mods.length == 0,
"ModifyRequest.setModifications.mods must not be empty.");
modifications.clear();
modifications.addAll(Arrays.asList(mods));
}
/**
* Replaces the existing set of modifications for this modify request with the
* provided modifications.
*
* @param mods The set of modification to use for this modify request. It
* must not be {@code null} or empty.
*/
public void setModifications(@NotNull final List mods)
{
Validator.ensureNotNull(mods);
Validator.ensureFalse(mods.isEmpty(),
"ModifyRequest.setModifications.mods must not be empty.");
modifications.clear();
modifications.addAll(mods);
}
/**
* {@inheritDoc}
*/
@Override()
public byte getProtocolOpType()
{
return LDAPMessage.PROTOCOL_OP_TYPE_MODIFY_REQUEST;
}
/**
* {@inheritDoc}
*/
@Override()
public void writeTo(@NotNull final ASN1Buffer writer)
{
final ASN1BufferSequence requestSequence =
writer.beginSequence(LDAPMessage.PROTOCOL_OP_TYPE_MODIFY_REQUEST);
writer.addOctetString(dn);
final ASN1BufferSequence modSequence = writer.beginSequence();
for (final Modification m : modifications)
{
m.writeTo(writer);
}
modSequence.end();
requestSequence.end();
}
/**
* Encodes the modify request protocol op to an ASN.1 element.
*
* @return The ASN.1 element with the encoded modify request protocol op.
*/
@Override()
@NotNull()
public ASN1Element encodeProtocolOp()
{
final ASN1Element[] modElements = new ASN1Element[modifications.size()];
for (int i=0; i < modElements.length; i++)
{
modElements[i] = modifications.get(i).encode();
}
final ASN1Element[] protocolOpElements =
{
new ASN1OctetString(dn),
new ASN1Sequence(modElements)
};
return new ASN1Sequence(LDAPMessage.PROTOCOL_OP_TYPE_MODIFY_REQUEST,
protocolOpElements);
}
/**
* Sends this modify request to the directory server over the provided
* connection and returns the associated response.
*
* @param connection The connection to use to communicate with the directory
* server.
* @param depth The current referral depth for this request. It should
* always be one for the initial request, and should only
* be incremented when following referrals.
*
* @return An LDAP result object that provides information about the result
* of the modify processing.
*
* @throws LDAPException If a problem occurs while sending the request or
* reading the response.
*/
@Override()
@NotNull()
protected LDAPResult process(@NotNull final LDAPConnection connection,
final int depth)
throws LDAPException
{
setReferralDepth(depth);
if (connection.synchronousMode())
{
@SuppressWarnings("deprecation")
final boolean autoReconnect =
connection.getConnectionOptions().autoReconnect();
return processSync(connection, depth, autoReconnect);
}
final long requestTime = System.nanoTime();
processAsync(connection, null);
try
{
// Wait for and process the response.
final LDAPResponse response;
try
{
final long responseTimeout = getResponseTimeoutMillis(connection);
if (responseTimeout > 0)
{
response = responseQueue.poll(responseTimeout, TimeUnit.MILLISECONDS);
}
else
{
response = responseQueue.take();
}
}
catch (final InterruptedException ie)
{
Debug.debugException(ie);
Thread.currentThread().interrupt();
throw new LDAPException(ResultCode.LOCAL_ERROR,
ERR_MODIFY_INTERRUPTED.get(connection.getHostPort()), ie);
}
return handleResponse(connection, response, requestTime, depth, false);
}
finally
{
connection.deregisterResponseAcceptor(messageID);
}
}
/**
* Sends this modify request to the directory server over the provided
* connection and returns the message ID for the request.
*
* @param connection The connection to use to communicate with the
* directory server.
* @param resultListener The async result listener that is to be notified
* when the response is received. It may be
* {@code null} only if the result is to be processed
* by this class.
*
* @return The async request ID created for the operation, or {@code null} if
* the provided {@code resultListener} is {@code null} and the
* operation will not actually be processed asynchronously.
*
* @throws LDAPException If a problem occurs while sending the request.
*/
@Nullable()
AsyncRequestID processAsync(@NotNull final LDAPConnection connection,
@Nullable final AsyncResultListener resultListener)
throws LDAPException
{
// Create the LDAP message.
messageID = connection.nextMessageID();
final LDAPMessage message = new LDAPMessage(messageID, this, getControls());
// If the provided async result listener is {@code null}, then we'll use
// this class as the message acceptor. Otherwise, create an async helper
// and use it as the message acceptor.
final AsyncRequestID asyncRequestID;
final long timeout = getResponseTimeoutMillis(connection);
if (resultListener == null)
{
asyncRequestID = null;
connection.registerResponseAcceptor(messageID, this);
}
else
{
final AsyncHelper helper = new AsyncHelper(connection,
OperationType.MODIFY, messageID, resultListener,
getIntermediateResponseListener());
connection.registerResponseAcceptor(messageID, helper);
asyncRequestID = helper.getAsyncRequestID();
if (timeout > 0L)
{
final Timer timer = connection.getTimer();
final AsyncTimeoutTimerTask timerTask =
new AsyncTimeoutTimerTask(helper);
timer.schedule(timerTask, timeout);
asyncRequestID.setTimerTask(timerTask);
}
}
// Send the request to the server.
try
{
Debug.debugLDAPRequest(Level.INFO, this, messageID, connection);
final LDAPConnectionLogger logger =
connection.getConnectionOptions().getConnectionLogger();
if (logger != null)
{
logger.logModifyRequest(connection, messageID, this);
}
connection.getConnectionStatistics().incrementNumModifyRequests();
connection.sendMessage(message, timeout);
return asyncRequestID;
}
catch (final LDAPException le)
{
Debug.debugException(le);
connection.deregisterResponseAcceptor(messageID);
throw le;
}
}
/**
* Processes this modify operation in synchronous mode, in which the same
* thread will send the request and read the response.
*
* @param connection The connection to use to communicate with the directory
* server.
* @param depth The current referral depth for this request. It should
* always be one for the initial request, and should only
* be incremented when following referrals.
* @param allowRetry Indicates whether the request may be re-tried on a
* re-established connection if the initial attempt fails
* in a way that indicates the connection is no longer
* valid and autoReconnect is true.
*
* @return An LDAP result object that provides information about the result
* of the modify processing.
*
* @throws LDAPException If a problem occurs while sending the request or
* reading the response.
*/
@NotNull()
private LDAPResult processSync(@NotNull final LDAPConnection connection,
final int depth, final boolean allowRetry)
throws LDAPException
{
// Create the LDAP message.
messageID = connection.nextMessageID();
final LDAPMessage message =
new LDAPMessage(messageID, this, getControls());
// Send the request to the server.
final long requestTime = System.nanoTime();
Debug.debugLDAPRequest(Level.INFO, this, messageID, connection);
final LDAPConnectionLogger logger =
connection.getConnectionOptions().getConnectionLogger();
if (logger != null)
{
logger.logModifyRequest(connection, messageID, this);
}
connection.getConnectionStatistics().incrementNumModifyRequests();
try
{
connection.sendMessage(message, getResponseTimeoutMillis(connection));
}
catch (final LDAPException le)
{
Debug.debugException(le);
if (allowRetry)
{
final LDAPResult retryResult = reconnectAndRetry(connection, depth,
le.getResultCode());
if (retryResult != null)
{
return retryResult;
}
}
throw le;
}
while (true)
{
final LDAPResponse response;
try
{
response = connection.readResponse(messageID);
}
catch (final LDAPException le)
{
Debug.debugException(le);
if ((le.getResultCode() == ResultCode.TIMEOUT) &&
connection.getConnectionOptions().abandonOnTimeout())
{
connection.abandon(messageID);
}
if (allowRetry)
{
final LDAPResult retryResult = reconnectAndRetry(connection, depth,
le.getResultCode());
if (retryResult != null)
{
return retryResult;
}
}
throw le;
}
if (response instanceof IntermediateResponse)
{
final IntermediateResponseListener listener =
getIntermediateResponseListener();
if (listener != null)
{
listener.intermediateResponseReturned(
(IntermediateResponse) response);
}
}
else
{
return handleResponse(connection, response, requestTime, depth,
allowRetry);
}
}
}
/**
* Performs the necessary processing for handling a response.
*
* @param connection The connection used to read the response.
* @param response The response to be processed.
* @param requestTime The time the request was sent to the server.
* @param depth The current referral depth for this request. It
* should always be one for the initial request, and
* should only be incremented when following referrals.
* @param allowRetry Indicates whether the request may be re-tried on a
* re-established connection if the initial attempt fails
* in a way that indicates the connection is no longer
* valid and autoReconnect is true.
*
* @return The modify result.
*
* @throws LDAPException If a problem occurs.
*/
@NotNull()
private LDAPResult handleResponse(@NotNull final LDAPConnection connection,
@Nullable final LDAPResponse response,
final long requestTime, final int depth,
final boolean allowRetry)
throws LDAPException
{
if (response == null)
{
final long waitTime =
StaticUtils.nanosToMillis(System.nanoTime() - requestTime);
if (connection.getConnectionOptions().abandonOnTimeout())
{
connection.abandon(messageID);
}
throw new LDAPException(ResultCode.TIMEOUT,
ERR_MODIFY_CLIENT_TIMEOUT.get(waitTime, messageID, dn,
connection.getHostPort()));
}
connection.getConnectionStatistics().incrementNumModifyResponses(
System.nanoTime() - requestTime);
if (response instanceof ConnectionClosedResponse)
{
// The connection was closed while waiting for the response.
if (allowRetry)
{
final LDAPResult retryResult = reconnectAndRetry(connection, depth,
ResultCode.SERVER_DOWN);
if (retryResult != null)
{
return retryResult;
}
}
final ConnectionClosedResponse ccr = (ConnectionClosedResponse) response;
final String message = ccr.getMessage();
if (message == null)
{
throw new LDAPException(ccr.getResultCode(),
ERR_CONN_CLOSED_WAITING_FOR_MODIFY_RESPONSE.get(
connection.getHostPort(), toString()));
}
else
{
throw new LDAPException(ccr.getResultCode(),
ERR_CONN_CLOSED_WAITING_FOR_MODIFY_RESPONSE_WITH_MESSAGE.get(
connection.getHostPort(), toString(), message));
}
}
final LDAPResult result = (LDAPResult) response;
if ((result.getResultCode().equals(ResultCode.REFERRAL)) &&
followReferrals(connection))
{
if (depth >= connection.getConnectionOptions().getReferralHopLimit())
{
return new LDAPResult(messageID, ResultCode.REFERRAL_LIMIT_EXCEEDED,
ERR_TOO_MANY_REFERRALS.get(),
result.getMatchedDN(), result.getReferralURLs(),
result.getResponseControls());
}
return ReferralHelper.handleReferral(this, result, connection);
}
else
{
if (allowRetry)
{
final LDAPResult retryResult = reconnectAndRetry(connection, depth,
result.getResultCode());
if (retryResult != null)
{
return retryResult;
}
}
return result;
}
}
/**
* Attempts to re-establish the connection and retry processing this request
* on it.
*
* @param connection The connection to be re-established.
* @param depth The current referral depth for this request. It should
* always be one for the initial request, and should only
* be incremented when following referrals.
* @param resultCode The result code for the previous operation attempt.
*
* @return The result from re-trying the add, or {@code null} if it could not
* be re-tried.
*/
@Nullable()
private LDAPResult reconnectAndRetry(@NotNull final LDAPConnection connection,
final int depth,
@NotNull final ResultCode resultCode)
{
try
{
// We will only want to retry for certain result codes that indicate a
// connection problem.
switch (resultCode.intValue())
{
case ResultCode.SERVER_DOWN_INT_VALUE:
case ResultCode.DECODING_ERROR_INT_VALUE:
case ResultCode.CONNECT_ERROR_INT_VALUE:
connection.reconnect();
return processSync(connection, depth, false);
}
}
catch (final Exception e)
{
Debug.debugException(e);
}
return null;
}
/**
* {@inheritDoc}
*/
@InternalUseOnly()
@Override()
public void responseReceived(@NotNull final LDAPResponse response)
throws LDAPException
{
try
{
responseQueue.put(response);
}
catch (final Exception e)
{
Debug.debugException(e);
if (e instanceof InterruptedException)
{
Thread.currentThread().interrupt();
}
throw new LDAPException(ResultCode.LOCAL_ERROR,
ERR_EXCEPTION_HANDLING_RESPONSE.get(
StaticUtils.getExceptionMessage(e)),
e);
}
}
/**
* {@inheritDoc}
*/
@Override()
public int getLastMessageID()
{
return messageID;
}
/**
* {@inheritDoc}
*/
@Override()
@NotNull()
public OperationType getOperationType()
{
return OperationType.MODIFY;
}
/**
* {@inheritDoc}
*/
@Override()
@NotNull()
public ModifyRequest duplicate()
{
return duplicate(getControls());
}
/**
* {@inheritDoc}
*/
@Override()
@NotNull()
public ModifyRequest duplicate(@Nullable final Control[] controls)
{
final ModifyRequest r = new ModifyRequest(dn,
new ArrayList<>(modifications), controls);
if (followReferralsInternal() != null)
{
r.setFollowReferrals(followReferralsInternal());
}
if (getReferralConnectorInternal() != null)
{
r.setReferralConnector(getReferralConnectorInternal());
}
r.setResponseTimeoutMillis(getResponseTimeoutMillis(null));
r.setIntermediateResponseListener(getIntermediateResponseListener());
r.setReferralDepth(getReferralDepth());
return r;
}
/**
* {@inheritDoc}
*/
@Override()
@NotNull()
public LDIFModifyChangeRecord toLDIFChangeRecord()
{
return new LDIFModifyChangeRecord(this);
}
/**
* {@inheritDoc}
*/
@Override()
@NotNull()
public String[] toLDIF()
{
return toLDIFChangeRecord().toLDIF();
}
/**
* {@inheritDoc}
*/
@Override()
@NotNull()
public String toLDIFString()
{
return toLDIFChangeRecord().toLDIFString();
}
/**
* {@inheritDoc}
*/
@Override()
public void toString(@NotNull final StringBuilder buffer)
{
buffer.append("ModifyRequest(dn='");
buffer.append(dn);
buffer.append("', mods={");
for (int i=0; i < modifications.size(); i++)
{
final Modification m = modifications.get(i);
if (i > 0)
{
buffer.append(", ");
}
switch (m.getModificationType().intValue())
{
case 0:
buffer.append("ADD ");
break;
case 1:
buffer.append("DELETE ");
break;
case 2:
buffer.append("REPLACE ");
break;
case 3:
buffer.append("INCREMENT ");
break;
}
buffer.append(m.getAttributeName());
}
buffer.append('}');
final Control[] controls = getControls();
if (controls.length > 0)
{
buffer.append(", controls={");
for (int i=0; i < controls.length; i++)
{
if (i > 0)
{
buffer.append(", ");
}
buffer.append(controls[i]);
}
buffer.append('}');
}
buffer.append(')');
}
/**
* {@inheritDoc}
*/
@Override()
public void toCode(@NotNull final List lineList,
@NotNull final String requestID,
final int indentSpaces, final boolean includeProcessing)
{
// Create the request variable.
final ArrayList constructorArgs =
new ArrayList<>(modifications.size() + 1);
constructorArgs.add(ToCodeArgHelper.createString(dn, "Entry DN"));
boolean firstMod = true;
for (final Modification m : modifications)
{
final String comment;
if (firstMod)
{
firstMod = false;
comment = "Modifications";
}
else
{
comment = null;
}
constructorArgs.add(ToCodeArgHelper.createModification(m, comment));
}
ToCodeHelper.generateMethodCall(lineList, indentSpaces, "ModifyRequest",
requestID + "Request", "new ModifyRequest", constructorArgs);
// If there are any controls, then add them to the request.
for (final Control c : getControls())
{
ToCodeHelper.generateMethodCall(lineList, indentSpaces, null, null,
requestID + "Request.addControl",
ToCodeArgHelper.createControl(c, null));
}
// Add lines for processing the request and obtaining the result.
if (includeProcessing)
{
// Generate a string with the appropriate indent.
final StringBuilder buffer = new StringBuilder();
for (int i=0; i < indentSpaces; i++)
{
buffer.append(' ');
}
final String indent = buffer.toString();
lineList.add("");
lineList.add(indent + "try");
lineList.add(indent + '{');
lineList.add(indent + " LDAPResult " + requestID +
"Result = connection.modify(" + requestID + "Request);");
lineList.add(indent + " // The modify was processed successfully.");
lineList.add(indent + '}');
lineList.add(indent + "catch (LDAPException e)");
lineList.add(indent + '{');
lineList.add(indent + " // The modify failed. Maybe the following " +
"will help explain why.");
lineList.add(indent + " ResultCode resultCode = e.getResultCode();");
lineList.add(indent + " String message = e.getMessage();");
lineList.add(indent + " String matchedDN = e.getMatchedDN();");
lineList.add(indent + " String[] referralURLs = e.getReferralURLs();");
lineList.add(indent + " Control[] responseControls = " +
"e.getResponseControls();");
lineList.add(indent + '}');
}
}
}