1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18 package org.apache.commons.net.ftp;
19
20 import java.io.IOException;
21 import java.io.InputStream;
22 import java.io.OutputStream;
23 import java.net.Socket;
24 import java.util.zip.DeflaterOutputStream;
25 import java.util.zip.InflaterInputStream;
26
27 /**
28 * Wrapper class for FTP data channel sockets when compressing data in the "deflate" compression format. All methods except of {@link #getInputStream()} and
29 * {@link #getOutputStream()} are calling the delegate methods directly.
30 */
31 final class DeflateSocket extends DelegateSocket {
32
33 DeflateSocket(final Socket delegate) {
34 super(delegate);
35 }
36
37 @Override
38 public InputStream getInputStream() throws IOException {
39 return new InflaterInputStream(delegate.getInputStream());
40 }
41
42 @Override
43 public OutputStream getOutputStream() throws IOException {
44 return new DeflaterOutputStream(delegate.getOutputStream());
45 }
46 }