1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 *
19 */
20 package org.apache.mina.core.file;
21
22 import java.io.File;
23 import java.nio.channels.FileChannel;
24
25 /**
26 * Manage a File to be sent to a remote host. We keep a track on the current
27 * position, and the number of already written bytes.
28 *
29 * @author The Apache MINA Project (dev@mina.apache.org)
30 * @version $Rev$, $Date$
31 */
32 public class FilenameFileRegion extends DefaultFileRegion {
33
34 private final File file;
35
36 /**
37 * Create a new FilenameFileRegion instance
38 *
39 * @param file The file to manage
40 * @param channel The channel over the file
41 */
42 public FilenameFileRegion(File file, FileChannel channel) {
43 this(file, channel, 0, file.length());
44 }
45
46 /**
47 * Create a new FilenameFileRegion instance
48 *
49 * @param file The file to manage
50 * @param channel The channel over the file
51 * @param position The position in teh file
52 * @param remainingBytes The remaining bytes
53 */
54 public FilenameFileRegion(File file, FileChannel channel, long position, long remainingBytes) {
55 super(channel, position, remainingBytes);
56
57 if (file == null) {
58 throw new IllegalArgumentException("file can not be null");
59 }
60
61 this.file = file;
62 }
63
64 /**
65 * {@inheritDoc}
66 */
67 @Override
68 public String getFilename() {
69 return file.getAbsolutePath();
70 }
71 }