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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.beans.PropertyEditorSupport;
    24
    25  /**
    26   * An abstract bi-directional {@link PropertyEditor}.
    27   *
    28   * @author <a href="http://mina.apache.org">Apache MINA Project</a>
    29   */
    30  public abstract class AbstractPropertyEditor extends PropertyEditorSupport {
    31
    32      private String text;
    33
    34      private Object value;
    35
    36      private boolean trimText = true;
    37
    38      protected void setTrimText(boolean trimText) {
    39          this.trimText = trimText;
    40      }
    41
    42      @Override
    43      public String getAsText() {
    44          return text;
    45      }
    46
    47      @Override
    48      public Object getValue() {
    49          return value;
    50      }
    51
    52      @Override
    53      public void setAsText(String text) throws IllegalArgumentException {
    54          this.text = text;
    55          if (text == null) {
    56              value = defaultValue();
    57          } else {
    58              value = toValue(trimText ? text.trim() : text);
    59          }
    60      }
    61
    62      @Override
    63      public void setValue(Object value) {
    64          this.value = value;
    65          if (value == null) {
    66              text = defaultText();
    67          } else {
    68              text = toText(value);
    69          }
    70      }
    71
    72      protected String defaultText() {
    73          return null;
    74      }
    75
    76      protected Object defaultValue() {
    77          return null;
    78      }
    79
    80      protected abstract String toText(Object value);
    81
    82      protected abstract Object toValue(String text) throws IllegalArgumentException;
    83
    84  }