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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 2016-2017 UnboundID Corp.
 * All Rights Reserved.
 */
/*
 * Copyright (C) 2016-2017 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.ldif;



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

import com.unboundid.util.StaticUtils;
import com.unboundid.util.ThreadSafety;
import com.unboundid.util.ThreadSafetyLevel;



/**
 * This class provides an implementation of an LDIF writer change record
 * translator that can be used to invoke multiple LDIF writer change record
 * translators for each record to be processed.
 */
@ThreadSafety(level=ThreadSafetyLevel.COMPLETELY_THREADSAFE)
public final class AggregateLDIFWriterChangeRecordTranslator
       implements LDIFWriterChangeRecordTranslator
{
  // The set of LDIF writer change record translators to be invoked for each
  // record to process.
  private final List translators;



  /**
   * Creates a new aggregate LDIF writer change record translator that will
   * invoke all of the provided translators for each record to be processed.
   *
   * @param  translators  The set of LDIF writer change record translators to be
   *                      invoked for each record to be processed.
   */
  public AggregateLDIFWriterChangeRecordTranslator(
              final LDIFWriterChangeRecordTranslator... translators)
  {
    this(StaticUtils.toList(translators));
  }



  /**
   * Creates a new aggregate LDIF writer change record translator that will
   * invoke all of the provided translators for each record to be processed.
   *
   * @param  translators  The set of LDIF writer change record translators to be
   *                      invoked for each record to be processed.
   */
  public AggregateLDIFWriterChangeRecordTranslator(
       final Collection translators)
  {
    if (translators == null)
    {
      this.translators = Collections.emptyList();
    }
    else
    {
      this.translators = Collections.unmodifiableList(
           new ArrayList(translators));
    }
  }



  /**
   * {@inheritDoc}
   */
  public LDIFChangeRecord translateChangeRecordToWrite(
                               final LDIFChangeRecord original)
  {
    if (original == null)
    {
      return null;
    }

    LDIFChangeRecord r = original;
    for (final LDIFWriterChangeRecordTranslator t : translators)
    {
      r = t.translateChangeRecordToWrite(r);
      if (r == null)
      {
        return null;
      }
    }

    return r;
  }
}