001/*
002 * Copyright 2019 Ping Identity Corporation
003 * All Rights Reserved.
004 */
005/*
006 * Copyright (C) 2019 Ping Identity Corporation
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.sdk;
022
023
024
025import com.unboundid.util.ThreadSafety;
026import com.unboundid.util.ThreadSafetyLevel;
027
028
029
030/**
031 * This class provides a default implementation of a {@link NameResolver} that
032 * simply uses the JVM-default name resolution functionality.
033 */
034@ThreadSafety(level= ThreadSafetyLevel.COMPLETELY_THREADSAFE)
035public final class DefaultNameResolver
036       extends NameResolver
037{
038  /**
039   * The singleton instance of this default name resolver.
040   */
041  private static final DefaultNameResolver INSTANCE = new DefaultNameResolver();
042
043
044
045  /**
046   * Prevents this class from being externally instantiated.
047   */
048  private DefaultNameResolver()
049  {
050    super();
051  }
052
053
054
055  /**
056   * Retrieves the singleton instance of this default name resolver.
057   *
058   * @return  The singleton instance of this default name resolver.
059   */
060  public static DefaultNameResolver getInstance()
061  {
062    return INSTANCE;
063  }
064
065
066
067  /**
068   * {@inheritDoc}
069   */
070  @Override()
071  public void toString(final StringBuilder buffer)
072  {
073    buffer.append("DefaultNameResolver()");
074  }
075}