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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.regex.Pattern;

import com.unboundid.util.Debug;
import com.unboundid.util.NotMutable;
import com.unboundid.util.ThreadSafety;
import com.unboundid.util.ThreadSafetyLevel;

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



/**
 * This class provides an implementation of an argument value validator that is
 * expected to be used with a string argument and ensures that all values for
 * the argument are valid regular expressions.  Note that it does not verify
 * that values match a given regular expression, but that can already be
 * accomplished with the {@link StringArgument#setValueRegex} method.
 */
@NotMutable()
@ThreadSafety(level=ThreadSafetyLevel.COMPLETELY_THREADSAFE)
public final class RegularExpressionArgumentValueValidator
       extends ArgumentValueValidator
{
  /**
   * Creates a new instance of this regular expression argument value validator.
   */
  public RegularExpressionArgumentValueValidator()
  {
    // No implementation is required.
  }



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



  /**
   * 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("RegularExpressionArgumentValueValidator()");
  }
}