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.converter.impl;
18
19 import java.io.IOException;
20 import java.io.InputStream;
21
22 import org.apache.commons.fileupload.FileItem;
23 import org.seasar.cubby.converter.Converter;
24
25 /**
26 * {@link FileItem}から{@link InputStream}へ変換する{@link Converter}です。
27 *
28 * @author baba
29 */
30 public class InputStreamFileItemConverter extends AbstractFileItemConverter {
31
32 /**
33 * {@inheritDoc}
34 *
35 * @return {@link InputStream}のクラスを返します。
36 */
37 public Class<?> getObjectType() {
38 return InputStream.class;
39 }
40
41 /**
42 * {@inheritDoc}
43 * <p>
44 * 指定された{@link FileItem}から取得した{@link InputStream}を返します。変換時に
45 * {@link IOException}が発生した場合は <code>null</code> を返します。
46 * </p>
47 *
48 * @return 指定された{@link FileItem}から取得した{@link InputStream}
49 * @see FileItem#getInputStream()
50 */
51 @Override
52 protected Object convert(final FileItem fileItem) {
53 try {
54 return fileItem.getInputStream();
55 } catch (final IOException e) {
56 return null;
57 }
58 }
59
60 }