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