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1   /*
2    * Copyright 2004-2010 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  
17  package org.seasar.cubby.plugins.gson;
18  
19  import org.seasar.cubby.plugin.AbstractPlugin;
20  import org.seasar.cubby.plugins.gson.spi.GsonJsonProvider;
21  import org.seasar.cubby.spi.JsonProvider;
22  import org.seasar.cubby.spi.Provider;
23  
24  /**
25   * <a href="http://code.google.com/p/google-gson/">Google Gson</a> による JSON
26   * 処理を行うためのプラグインです。
27   * <p>
28   * このプラグインが提供するプロバイダは以下の通りです。
29   * <ul>
30   * <li>{@link JsonProvider}</li>
31   * </ul>
32   * </p>
33   * 
34   * @see <a href="http://code.google.com/p/google-gson/">Google&nbsp;Gson</a>
35   * @see <a
36   *      href="http://sites.google.com/site/gson/gson-user-guide">Gson&nbsp;User&nbsp;Guide</a>
37   * @author baba
38   */
39  public class GsonPlugin extends AbstractPlugin {
40  
41  	/** JSON のプロバイダ。 */
42  	private final JsonProvider jsonProvider = new GsonJsonProvider();
43  
44  	/**
45  	 * インスタンス化します。
46  	 */
47  	public GsonPlugin() {
48  		support(JsonProvider.class);
49  	}
50  
51  	/**
52  	 * {@inheritDoc}
53  	 */
54  	public <S extends Provider> S getProvider(final Class<S> service) {
55  		if (JsonProvider.class.equals(service)) {
56  			return service.cast(jsonProvider);
57  		}
58  		return null;
59  	}
60  
61  }