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    1   /*
    2    * Copyright 2012 The Netty Project
    3    *
    4    * The Netty Project licenses this file to you under the Apache License,
    5    * version 2.0 (the "License"); you may not use this file except in compliance
    6    * with the License. You may obtain a copy of the License at:
    7    *
    8    *   http://www.apache.org/licenses/LICENSE-2.0
    9    *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
    12   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
    13   * License for the specific language governing permissions and limitations
    14   * under the License.
    15   */
    16  package org.jboss.netty.channel.socket.nio;
    17
    18  import org.jboss.netty.channel.socket.InternetProtocolFamily;
    19
    20
    21
    22  /**
    23   * Helper class which convert the {@link InternetProtocolFamily}.
    24   *
    25   *
    26   */
    27  final class ProtocolFamilyConverter {
    28
    29      private ProtocolFamilyConverter() {
    30          // Utility class
    31      }
    32
    33      /**
    34       * Convert the {@link InternetProtocolFamily}. This MUST only be called on jdk version >= 7.
    35       */
    36      public static java.net.ProtocolFamily convert(InternetProtocolFamily family) {
    37          switch (family) {
    38          case IPv4:
    39              return java.net.StandardProtocolFamily.INET;
    40
    41          case IPv6:
    42              return java.net.StandardProtocolFamily.INET6;
    43          default:
    44              throw new IllegalArgumentException();
    45          }
    46      }
    47  }