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    1   /*
    2    *  Licensed to the Apache Software Foundation (ASF) under one
    3    *  or more contributor license agreements.  See the NOTICE file
    4    *  distributed with this work for additional information
    5    *  regarding copyright ownership.  The ASF licenses this file
    6    *  to you under the Apache License, Version 2.0 (the
    7    *  "License"); you may not use this file except in compliance
    8    *  with the License.  You may obtain a copy of the License at
    9    *
    10   *    http://www.apache.org/licenses/LICENSE-2.0
    11   *
    12   *  Unless required by applicable law or agreed to in writing,
    13   *  software distributed under the License is distributed on an
    14   *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    15   *  KIND, either express or implied.  See the License for the
    16   *  specific language governing permissions and limitations
    17   *  under the License.
    18   *
    19   */
    20  package org.apache.mina.integration.beans;
    21
    22  import java.beans.PropertyEditor;
    23  import java.net.InetAddress;
    24  import java.net.UnknownHostException;
    25
    26  /**
    27   * A {@link PropertyEditor} which converts a {@link String} into an
    28   * {@link InetAddress}.
    29   * This editor simply calls {@link InetAddress#getByName(java.lang.String)}
    30   * when converting from a {@link String}, and {@link InetAddress#getHostAddress()}
    31   * when converting to a {@link String}.
    32   *
    33   * @author <a href="http://mina.apache.org">Apache MINA Project</a>
    34   *
    35   * @see java.net.InetAddress
    36   */
    37  public class InetAddressEditor extends AbstractPropertyEditor {
    38      @Override
    39      protected String toText(Object value) {
    40          String hostname = ((InetAddress) value).getHostAddress();
    41          if (hostname.equals("0:0:0:0:0:0:0:0") || hostname.equals("0.0.0.0")
    42                  || hostname.equals("00:00:00:00:00:00:00:00")) {
    43              hostname = "*";
    44          }
    45          return hostname;
    46      }
    47
    48      @Override
    49      protected Object toValue(String text) throws IllegalArgumentException {
    50          if (text.length() == 0 || text.equals("*")) {
    51              return defaultValue();
    52          }
    53
    54          try {
    55              return InetAddress.getByName(text);
    56          } catch (UnknownHostException uhe) {
    57              IllegalArgumentException iae = new IllegalArgumentException();
    58              iae.initCause(uhe);
    59              throw iae;
    60          }
    61      }
    62
    63      @Override
    64      protected String defaultText() {
    65          return "*";
    66      }
    67
    68      @Override
    69      protected Object defaultValue() {
    70          try {
    71              return InetAddress.getByName("0.0.0.0");
    72          } catch (UnknownHostException e) {
    73              throw new InternalError();
    74          }
    75      }
    76  }