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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 2020-2023 Ping Identity Corporation
 * All Rights Reserved.
 */
/*
 * Copyright 2020-2023 Ping Identity Corporation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/*
 * Copyright (C) 2020-2023 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 com.unboundid.util.NotMutable;
import com.unboundid.util.NotNull;
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
 * ensures that values can be parsed as valid IA5 strings (that is, strings
 * containing only ASCII characters).
 */
@NotMutable()
@ThreadSafety(level=ThreadSafetyLevel.COMPLETELY_THREADSAFE)
public final class IA5StringArgumentValueValidator
       extends ArgumentValueValidator
       implements Serializable
{
  /**
   * The serial version UID for this serializable class.
   */
  private static final long serialVersionUID = 7395996449791650693L;



  // Indicates whether values are allowed to be empty strings.
  private final boolean allowEmptyStrings;



  /**
   * Creates a new IA5 string argument value validator.  Empty strings will not
   * be considered valid.
   */
  public IA5StringArgumentValueValidator()
  {
    this(false);
  }



  /**
   * Creates a new IA5 string argument value validator.
   *
   * @param  allowEmptyStrings  Indicates whether empty strings will be
   *                            considered valid.
   */
  public IA5StringArgumentValueValidator(final boolean allowEmptyStrings)
  {
    this.allowEmptyStrings = allowEmptyStrings;
  }



  /**
   * {@inheritDoc}
   */
  @Override()
  public void validateArgumentValue(@NotNull final Argument argument,
                                    @NotNull final String valueString)
         throws ArgumentException
  {
    final int length = valueString.length();
    if ((length == 0) && (! allowEmptyStrings))
    {
      throw new ArgumentException(ERR_IA5_STRING_VALIDATOR_EMPTY_STRING.get(
           argument.getIdentifierString()));
    }

    for (int i=0; i < length; i++)
    {
      final char c = valueString.charAt(i);
      final int asciiByte = (c & 0x7F);
      if (c != asciiByte)
      {
        throw new ArgumentException(ERR_IA5_STRING_VALIDATOR_ILLEGAL_CHAR.get(
             valueString, argument.getIdentifierString(),
             String.valueOf(c),
             i));
      }
    }
  }



  /**
   * Indicates whether empty strings should be considered valid.
   *
   * @return  {@code true} if empty strings should be considered valid, or
   *          {@code false} if not.
   */
  public boolean allowEmptyStrings()
  {
    return allowEmptyStrings;
  }



  /**
   * Retrieves a string representation of this argument value validator.
   *
   * @return  A string representation of this argument value validator.
   */
  @Override()
  @NotNull()
  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(@NotNull final StringBuilder buffer)
  {
    buffer.append("IA5StringArgumentValueValidator(allowEmptyStrings=");
    buffer.append(allowEmptyStrings);
    buffer.append(')');
  }
}