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1   /*
2    * Copyright 2004-2008 the Seasar Foundation and the Others.
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * 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,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
13   * either express or implied. See the License for the specific language
14   * governing permissions and limitations under the License.
15   */
16  package org.seasar.cubby.validator.validators;
17  
18  import org.seasar.cubby.validator.ArrayFieldValidator;
19  import org.seasar.cubby.validator.MessageHelper;
20  import org.seasar.cubby.validator.ValidationContext;
21  
22  /**
23   * 配列の最小サイズを検証します。
24   * <p>
25   * デフォルトエラーメッセージキー:valid.arrayMinSize
26   * </p>
27   * 
28   * @author agata
29   * @author baba
30   */
31  public class ArrayMinSizeValidator implements ArrayFieldValidator {
32  
33  	/**
34  	 * メッセージヘルパ。
35  	 */
36  	private final MessageHelper messageHelper;
37  
38  	/**
39  	 * 配列の最小サイズ
40  	 */
41  	private final int min;
42  
43  	/**
44  	 * コンストラクタ
45  	 * 
46  	 * @param min
47  	 *            配列の最小サイズ
48  	 */
49  	public ArrayMinSizeValidator(final int min) {
50  		this(min, "valid.minSize");
51  	}
52  
53  	/**
54  	 * エラーメッセージキーを指定するコンストラクタ
55  	 * 
56  	 * @param min
57  	 *            配列の最小サイズ
58  	 * @param messageKey
59  	 *            エラーメッセージキー
60  	 */
61  	public ArrayMinSizeValidator(final int min, final String messageKey) {
62  		this.min = min;
63  		this.messageHelper = new MessageHelper(messageKey);
64  	}
65  
66  	public void validate(final ValidationContext context, final Object[] values) {
67  		if (values == null) {
68  			return;
69  		}
70  		if (values.length < min) {
71  			context.addMessageInfo(this.messageHelper.createMessageInfo(min));
72  		}
73  	}
74  }