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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   * 配列の最大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.arrayMaxSize
26   * </p>
27   * 
28   * @author agata
29   * @author baba
30   * @since 1.0.0
31   */
32  public class ArrayMaxSizeValidator implements ArrayFieldValidator {
33  
34  	/**
35  	 * メッセージヘルパ。
36  	 */
37  	private final MessageHelper messageHelper;
38  
39  	/**
40  	 * 配列の最大サイズ
41  	 */
42  	private final int max;
43  
44  	/**
45  	 * コンストラクタ
46  	 * 
47  	 * @param max
48  	 *            配列の最大サイズ
49  	 */
50  	public ArrayMaxSizeValidator(final int max) {
51  		this(max, "valid.maxSize");
52  	}
53  
54  	/**
55  	 * エラーメッセージキーを指定するコンストラクタ
56  	 * 
57  	 * @param max
58  	 *            配列の最大サイズ
59  	 * @param messageKey
60  	 *            エラーメッセージキー
61  	 */
62  	public ArrayMaxSizeValidator(final int max, final String messageKey) {
63  		this.max = max;
64  		this.messageHelper = new MessageHelper(messageKey);
65  	}
66  
67  	/**
68  	 * {@inheritDoc}
69  	 */
70  	public void validate(final ValidationContext context, final Object[] values) {
71  		if (values == null) {
72  			return;
73  		}
74  		if (values.length > max) {
75  			context.addMessageInfo(this.messageHelper.createMessageInfo(max));
76  		}
77  	}
78  }