/lib/src/org/apache/http/conn/util/InetAddressUtils.java

http://github.com/onedanshow/Screen-Courter · Java · 73 lines · 29 code · 13 blank · 31 comment · 1 complexity · 94378f1180067edb32e5b4dba23c2277 MD5 · raw file 

    

  1. /*

    2. 

  2.  * ====================================================================

    3. 

  3.  * Licensed to the Apache Software Foundation (ASF) under one

    4. 

  4.  * or more contributor license agreements.  See the NOTICE file

    5. 

  5.  * distributed with this work for additional information

    6. 

  6.  * regarding copyright ownership.  The ASF licenses this file

    7. 

  7.  * to you under the Apache License, Version 2.0 (the

    8. 

  8.  * "License"); you may not use this file except in compliance

    9. 

  9.  * with the License.  You may obtain a copy of the License at

    10. 

  10.  *

    11. 

  11.  *   http://www.apache.org/licenses/LICENSE-2.0

    12. 

  12.  *

    13. 

  13.  * Unless required by applicable law or agreed to in writing,

    14. 

  14.  * software distributed under the License is distributed on an

    15. 

  15.  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

    16. 

  16.  * KIND, either express or implied.  See the License for the

    17. 

  17.  * specific language governing permissions and limitations

    18. 

  18.  * under the License.

    19. 

  19.  * ====================================================================

    20. 

  20.  *

    21. 

  21.  * This software consists of voluntary contributions made by many

    22. 

  22.  * individuals on behalf of the Apache Software Foundation.  For more

    23. 

  23.  * information on the Apache Software Foundation, please see

    24. 

  24.  * <http://www.apache.org/>.

    25. 

  25.  *

    26. 

  26.  */

    27. 

  27. 

    28. 

  28. package org.apache.http.conn.util;

    29. 

  29. 

    30. 

  30. import java.util.regex.Pattern;

    31. 

  31. 

    32. 

  32. import org.apache.http.annotation.Immutable;

    33. 

  33. 

    34. 

  34. /**

    35. 

  35.  * A collection of utilities relating to InetAddresses.

    36. 

  36.  *

    37. 

  37.  * @since 4.0

    38. 

  38.  */

    39. 

  39. @Immutable

    40. 

  40. public class InetAddressUtils {

    41. 

  41. 

    42. 

  42.     private InetAddressUtils() {

    43. 

  43.     }

    44. 

  44. 

    45. 

  45.     private static final Pattern IPV4_PATTERN =

    46. 

  46.         Pattern.compile(

    47. 

  47.                 "^(25[0-5]|2[0-4]\\d|[0-1]?\\d?\\d)(\\.(25[0-5]|2[0-4]\\d|[0-1]?\\d?\\d)){3}$");

    48. 

  48. 

    49. 

  49.     private static final Pattern IPV6_STD_PATTERN =

    50. 

  50.         Pattern.compile(

    51. 

  51.                 "^(?:[0-9a-fA-F]{1,4}:){7}[0-9a-fA-F]{1,4}$");

    52. 

  52. 

    53. 

  53.     private static final Pattern IPV6_HEX_COMPRESSED_PATTERN =

    54. 

  54.         Pattern.compile(

    55. 

  55.                 "^((?:[0-9A-Fa-f]{1,4}(?::[0-9A-Fa-f]{1,4})*)?)::((?:[0-9A-Fa-f]{1,4}(?::[0-9A-Fa-f]{1,4})*)?)$");

    56. 

  56. 

    57. 

  57.     public static boolean isIPv4Address(final String input) {

    58. 

  58.         return IPV4_PATTERN.matcher(input).matches();

    59. 

  59.     }

    60. 

  60. 

    61. 

  61.     public static boolean isIPv6StdAddress(final String input) {

    62. 

  62.         return IPV6_STD_PATTERN.matcher(input).matches();

    63. 

  63.     }

    64. 

  64. 

    65. 

  65.     public static boolean isIPv6HexCompressedAddress(final String input) {

    66. 

  66.         return IPV6_HEX_COMPRESSED_PATTERN.matcher(input).matches();

    67. 

  67.     }

    68. 

  68. 

    69. 

  69.     public static boolean isIPv6Address(final String input) {

    70. 

  70.         return isIPv6StdAddress(input) || isIPv6HexCompressedAddress(input);

    71. 

  71.     }

    72. 

  72. 

    73. 

  73. }
    74.