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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.

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/*
 * Copyright 2015-2018 Ping Identity Corporation
 * All Rights Reserved.
 */
/*
 * Copyright (C) 2015-2018 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.util.args;



import java.io.Serializable;
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 within one or more specified
 * subtrees.
 */
@NotMutable()
@ThreadSafety(level=ThreadSafetyLevel.COMPLETELY_THREADSAFE)
public final class RequireDNInSubtreeArgumentValueValidator
       extends ArgumentValueValidator
       implements Serializable
{
  /**
   * The serial version UID for this serializable class.
   */
  private static final long serialVersionUID = -4517307608327628921L;



  // The set of permitted 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 permitted base DNs for values of the associated
   *                  argument.  It must not be {@code null} or empty.
   */
  public RequireDNInSubtreeArgumentValueValidator(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 permitted base DNs for values of the associated
   *                  argument.  It must not be {@code null} or empty.
   */
  public RequireDNInSubtreeArgumentValueValidator(final Collection baseDNs)
  {
    Validator.ensureNotNull(baseDNs);
    Validator.ensureFalse(baseDNs.isEmpty());

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



  /**
   * Retrieves a list of the permitted base DNs for this argument value
   * validator.
   *
   * @return  A list of the permitted 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_REQUIRE_DN_IN_SUBTREE_VALIDATOR_VALUE_NOT_DN.get(valueString,
                argument.getIdentifierString()),
           e);
    }


    if (baseDNs.size() == 1)
    {
      if (! dn.isDescendantOf(baseDNs.get(0), true))
      {
        throw new ArgumentException(
             ERR_REQUIRE_DN_IN_SUBTREE_VALIDATOR_VALUE_NOT_IN_SUBTREE.get(
                  valueString, argument.getIdentifierString(),
                  String.valueOf(baseDNs.get(0))));
      }
    }
    else
    {
      final StringBuilder dnList = new StringBuilder();
      final Iterator iterator = baseDNs.iterator();
      while (iterator.hasNext())
      {
        final DN baseDN = iterator.next();
        if (dn.isDescendantOf(baseDN, true))
        {
          return;
        }

        dnList.append('\'');
        dnList.append(baseDN);
        dnList.append('\'');

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

      throw new ArgumentException(
           ERR_REQUIRE_DN_IN_SUBTREE_VALIDATOR_VALUE_NOT_IN_SUBTREES.get(
                valueString, argument.getIdentifierString(),
                dnList.toString()));
    }
  }



  /**
   * 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("RequireDNInSubtreeArgumentValueValidator(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("})");
  }
}