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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 Commercial Edition of the LDAP SDK, which includes all of the general-purpose functionality contained in the Standard Edition, plus additional functionality specific to UnboundID server products.

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/*
 * Copyright 2015-2016 UnboundID Corp.
 * All Rights Reserved.
 */
/*
 * Copyright (C) 2015-2016 UnboundID Corp.
 *
 * 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.util.args;



import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;

import com.unboundid.ldap.sdk.DN;
import com.unboundid.util.Debug;
import com.unboundid.util.NotMutable;
import com.unboundid.util.StaticUtils;
import com.unboundid.util.ThreadSafety;
import com.unboundid.util.ThreadSafetyLevel;
import com.unboundid.util.Validator;

import static com.unboundid.util.args.ArgsMessages.*;



/**
 * This class provides an implementation of an argument value validator that is
 * expected to be used with string or DN arguments and ensures that all values
 * for the argument are valid DNs that are not within one or more specified
 * subtrees.
 */
@NotMutable()
@ThreadSafety(level=ThreadSafetyLevel.COMPLETELY_THREADSAFE)
public final class ProhibitDNInSubtreeArgumentValueValidator
       extends ArgumentValueValidator
{
  // The set of prohibited base DNs for values of the associated argument.
  private final List baseDNs;



  /**
   * Creates a new instance of this argument value validator with the provided
   * information.
   *
   * @param  baseDNs  The set of prohibited base DNs for values of the
   *                  associated argument.  It must not be {@code null} or
   *                  empty.
   */
  public ProhibitDNInSubtreeArgumentValueValidator(final DN... baseDNs)
  {
    this(StaticUtils.toList(baseDNs));
  }



  /**
   * Creates a new instance of this argument value validator with the provided
   * information.
   *
   * @param  baseDNs  The set of prohibited base DNs for values of the
   *                  associated argument.  It must not be {@code null} or
   *                  empty.
   */
  public ProhibitDNInSubtreeArgumentValueValidator(final Collection baseDNs)
  {
    Validator.ensureNotNull(baseDNs);
    Validator.ensureFalse(baseDNs.isEmpty());

    this.baseDNs = Collections.unmodifiableList(new ArrayList(baseDNs));
  }



  /**
   * Retrieves a list of the prohibited base DNs for this argument value
   * validator.
   *
   * @return  A list of the prohibited base DNs for this argument value
   *          validator.
   */
  public List getBaseDNs()
  {
    return baseDNs;
  }



  /**
   * {@inheritDoc}
   */
  @Override()
  public void validateArgumentValue(final Argument argument,
                                    final String valueString)
         throws ArgumentException
  {
    final DN dn;
    try
    {
      dn = new DN(valueString);
    }
    catch (final Exception e)
    {
      Debug.debugException(e);
      throw new ArgumentException(
           ERR_PROHIBIT_DN_IN_SUBTREE_VALIDATOR_VALUE_NOT_DN.get(valueString,
                argument.getIdentifierString()),
           e);
    }

    for (final DN baseDN : baseDNs)
    {
      if (dn.isDescendantOf(baseDN, true))
      {
        throw new ArgumentException(
             ERR_PROHIBIT_DN_IN_SUBTREE_VALIDATOR_VALUE_IN_SUBTREE.get(
                  valueString, argument.getIdentifierString(),
                  String.valueOf(baseDN)));
      }
    }
  }



  /**
   * Retrieves a string representation of this argument value validator.
   *
   * @return  A string representation of this argument value validator.
   */
  @Override()
  public String toString()
  {
    final StringBuilder buffer = new StringBuilder();
    toString(buffer);
    return buffer.toString();
  }



  /**
   * Appends a string representation of this argument value validator to the
   * provided buffer.
   *
   * @param  buffer  The buffer to which the string representation should be
   *                 appended.
   */
  public void toString(final StringBuilder buffer)
  {
    buffer.append("ProhibitDNInSubtreeArgumentValueValidator(baseDNs={");

    final Iterator iterator = baseDNs.iterator();
    while (iterator.hasNext())
    {
      buffer.append('\'');
      buffer.append(iterator.next().toString());
      buffer.append('\'');

      if (iterator.hasNext())
      {
        buffer.append(", ");
      }
    }

    buffer.append("})");
  }
}