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1   /*
2    * Copyright 2004-2009 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.converter.impl;
17  
18  import java.util.HashMap;
19  import java.util.Map;
20  
21  import org.seasar.cubby.converter.Converter;
22  
23  /**
24   * {@link Converter} の抽象クラスです。
25   * 
26   * @author baba
27   */
28  public abstract class AbstractConverter implements Converter {
29  
30  	/** プリミティブ型の配列クラスとラッパー型の配列クラスのマッピング */
31  	private static final Map<Class<?>, Class<?>> PRIMITIVE_ARRAY_TO_WRAPPER_ARRAY = new HashMap<Class<?>, Class<?>>();
32  	static {
33  		PRIMITIVE_ARRAY_TO_WRAPPER_ARRAY.put(boolean[].class, Boolean[].class);
34  		PRIMITIVE_ARRAY_TO_WRAPPER_ARRAY.put(char[].class, Character[].class);
35  		PRIMITIVE_ARRAY_TO_WRAPPER_ARRAY.put(byte[].class, Byte[].class);
36  		PRIMITIVE_ARRAY_TO_WRAPPER_ARRAY.put(short[].class, Short[].class);
37  		PRIMITIVE_ARRAY_TO_WRAPPER_ARRAY.put(int[].class, Integer[].class);
38  		PRIMITIVE_ARRAY_TO_WRAPPER_ARRAY.put(long[].class, Long[].class);
39  		PRIMITIVE_ARRAY_TO_WRAPPER_ARRAY.put(float[].class, Float[].class);
40  		PRIMITIVE_ARRAY_TO_WRAPPER_ARRAY.put(double[].class, Double[].class);
41  	}
42  
43  	/**
44  	 * {@inheritDoc}
45  	 */
46  	public boolean canConvert(final Class<?> parameterType,
47  			final Class<?> objectType) {
48  		if (getObjectType().isAssignableFrom(objectType)) {
49  			return true;
50  		}
51  		if (PRIMITIVE_ARRAY_TO_WRAPPER_ARRAY.containsKey(objectType)) {
52  			final Class<?> wrapperArray = PRIMITIVE_ARRAY_TO_WRAPPER_ARRAY
53  					.get(objectType);
54  			return canConvert(parameterType, wrapperArray);
55  		}
56  		return false;
57  	}
58  
59  }