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/*
* Copyright 2008-2021 Ping Identity Corporation
* All Rights Reserved.
*/
/*
* Copyright 2008-2021 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) 2008-2021 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.unboundidds.controls;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.Iterator;
import com.unboundid.asn1.ASN1Element;
import com.unboundid.asn1.ASN1OctetString;
import com.unboundid.asn1.ASN1Sequence;
import com.unboundid.ldap.sdk.Control;
import com.unboundid.ldap.sdk.LDAPException;
import com.unboundid.ldap.sdk.ResultCode;
import com.unboundid.util.Debug;
import com.unboundid.util.NotMutable;
import com.unboundid.util.NotNull;
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.unboundidds.controls.ControlMessages.*;
/**
* This class provides a request control which may be used to request that
* entries below one or more base DNs be excluded from the results returned to
* a client while processing a search operation. For example, this may be
* useful in cases where you want to perform a search below "dc=example,dc=com",
* but want to exclude all entries below "ou=private,dc=example,dc=com".
*
*
* NOTE: This class, and other classes within the
* {@code com.unboundid.ldap.sdk.unboundidds} package structure, are only
* supported for use against Ping Identity, UnboundID, and
* Nokia/Alcatel-Lucent 8661 server products. These classes provide support
* for proprietary functionality or for external specifications that are not
* considered stable or mature enough to be guaranteed to work in an
* interoperable way with other types of LDAP servers.
*
*
* The criticality for this control may be either {@code true} or {@code false}.
* It must have a value with the following encoding:
*
*/
@NotMutable()
@ThreadSafety(level=ThreadSafetyLevel.COMPLETELY_THREADSAFE)
public final class ExcludeBranchRequestControl
extends Control
{
/**
* The OID (1.3.6.1.4.1.30221.2.5.17) for the exclude branch request control.
*/
@NotNull public static final String EXCLUDE_BRANCH_REQUEST_OID =
"1.3.6.1.4.1.30221.2.5.17";
/**
* The BER type for the base DNs element.
*/
private static final byte TYPE_BASE_DNS = (byte) 0xA0;
/**
* The serial version UID for this serializable class.
*/
private static final long serialVersionUID = -8599554860060612417L;
// The list of base DNs to be excluded from the search results.
@NotNull private final List baseDNs;
/**
* Creates a new exclude branch request control with the provided set of base
* DNs. It will be marked critical.
*
* @param baseDNs The base DNs for entries to be excluded from search
* results. It must not be {@code null} or empty.
*/
public ExcludeBranchRequestControl(@NotNull final Collection baseDNs)
{
this(true, baseDNs);
}
/**
* Creates a new exclude branch request control with the provided set of base
* DNs. It will be marked critical.
*
* @param baseDNs The base DNs for entries to be excluded from search
* results. It must not be {@code null} or empty.
*/
public ExcludeBranchRequestControl(@NotNull final String... baseDNs)
{
this(true, baseDNs);
}
/**
* Creates a new exclude branch request control with the provided information.
*
* @param isCritical Indicates whether the control should be marked
* critical.
* @param baseDNs The base DNs for entries to be excluded from search
* results. It must not be {@code null} or empty.
*/
public ExcludeBranchRequestControl(final boolean isCritical,
@NotNull final String... baseDNs)
{
super(EXCLUDE_BRANCH_REQUEST_OID, isCritical, encodeValue(baseDNs));
this.baseDNs = Collections.unmodifiableList(Arrays.asList(baseDNs));
}
/**
* Creates a new exclude branch request control with the provided information.
*
* @param isCritical Indicates whether the control should be marked
* critical.
* @param baseDNs The base DNs for entries to be excluded from search
* results. It must not be {@code null} or empty.
*/
public ExcludeBranchRequestControl(final boolean isCritical,
@NotNull final Collection baseDNs)
{
super(EXCLUDE_BRANCH_REQUEST_OID, isCritical, encodeValue(baseDNs));
this.baseDNs = Collections.unmodifiableList(new ArrayList<>(baseDNs));
}
/**
* Creates a new exclude branch request control which is decoded from the
* provided generic control.
*
* @param control The generic control to be decoded as an exclude branch
* request control.
*
* @throws LDAPException If the provided control cannot be decoded as an
* exclude branch request control.
*/
public ExcludeBranchRequestControl(@NotNull final Control control)
throws LDAPException
{
super(control);
final ASN1OctetString value = control.getValue();
if (value == null)
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_EXCLUDE_BRANCH_MISSING_VALUE.get());
}
final ASN1Sequence valueSequence;
try
{
valueSequence = ASN1Sequence.decodeAsSequence(value.getValue());
}
catch (final Exception e)
{
Debug.debugException(e);
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_EXCLUDE_BRANCH_VALUE_NOT_SEQUENCE.get(
StaticUtils.getExceptionMessage(e)), e);
}
try
{
final ASN1Element[] elements = valueSequence.elements();
final ASN1Element[] dnElements =
ASN1Sequence.decodeAsSequence(elements[0]).elements();
final ArrayList dnList = new ArrayList<>(dnElements.length);
for (final ASN1Element e : dnElements)
{
dnList.add(ASN1OctetString.decodeAsOctetString(e).stringValue());
}
baseDNs = Collections.unmodifiableList(dnList);
if (baseDNs.isEmpty())
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_EXCLUDE_BRANCH_NO_BASE_DNS.get());
}
}
catch (final LDAPException le)
{
Debug.debugException(le);
throw le;
}
catch (final Exception e)
{
Debug.debugException(e);
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_EXCLUDE_BRANCH_ERROR_PARSING_VALUE.get(
StaticUtils.getExceptionMessage(e)), e);
}
}
/**
* Encodes the provided information into a form suitable for use as the value
* of this control.
*
* @param baseDNs The base DNs for entries to be excluded from search
* results. It must not be {@code null} or empty.
*
* @return The encoded value for this control.
*/
@NotNull()
private static ASN1OctetString encodeValue(@NotNull final String... baseDNs)
{
Validator.ensureNotNull(baseDNs);
return encodeValue(Arrays.asList(baseDNs));
}
/**
* Encodes the provided information into a form suitable for use as the value
* of this control.
*
* @param baseDNs The base DNs for entries to be excluded from search
* results. It must not be {@code null} or empty.
*
* @return The encoded value for this control.
*/
@NotNull()
private static ASN1OctetString encodeValue(
@NotNull final Collection baseDNs)
{
Validator.ensureNotNull(baseDNs);
Validator.ensureFalse(baseDNs.isEmpty());
final ArrayList dnElements = new ArrayList<>(baseDNs.size());
for (final String s : baseDNs)
{
dnElements.add(new ASN1OctetString(s));
}
final ASN1Sequence baseDNSequence =
new ASN1Sequence(TYPE_BASE_DNS, dnElements);
final ASN1Sequence valueSequence = new ASN1Sequence(baseDNSequence);
return new ASN1OctetString(valueSequence.encode());
}
/**
* Retrieves a list of the base DNs for entries to exclude from the search
* results.
*
* @return A list of the base DNs for entries to exclude from the search
* results.
*/
@NotNull()
public List getBaseDNs()
{
return baseDNs;
}
/**
* {@inheritDoc}
*/
@Override()
@NotNull()
public String getControlName()
{
return INFO_CONTROL_NAME_EXCLUDE_BRANCH.get();
}
/**
* {@inheritDoc}
*/
@Override()
public void toString(@NotNull final StringBuilder buffer)
{
buffer.append("ExcludeBranchRequestControl(isCritical=");
buffer.append(isCritical());
buffer.append(", baseDNs={");
final Iterator iterator = baseDNs.iterator();
while (iterator.hasNext())
{
buffer.append('\'');
buffer.append(iterator.next());
buffer.append('\'');
if (iterator.hasNext())
{
buffer.append(", ");
}
}
buffer.append("})");
}
}
