1 package org.eclipse.aether.transport.wagon;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 import java.nio.ByteBuffer;
23
24 import org.apache.maven.wagon.events.TransferEvent;
25 import org.apache.maven.wagon.observers.AbstractTransferListener;
26 import org.eclipse.aether.spi.connector.transport.TransportListener;
27 import org.eclipse.aether.transfer.TransferCancelledException;
28
29 /**
30 * A wagon transfer listener that forwards events to a transport listener.
31 */
32 final class WagonTransferListener
33 extends AbstractTransferListener
34 {
35
36 private final TransportListener listener;
37
38 WagonTransferListener( TransportListener listener )
39 {
40 this.listener = listener;
41 }
42
43 @Override
44 public void transferStarted( TransferEvent event )
45 {
46 try
47 {
48 listener.transportStarted( 0, event.getResource().getContentLength() );
49 }
50 catch ( TransferCancelledException e )
51 {
52 /*
53 * NOTE: Wagon transfers are not freely abortable. In particular, aborting from
54 * AbstractWagon.fire(Get|Put)Started() would result in unclosed streams so we avoid this case.
55 */
56 }
57 }
58
59 @Override
60 public void transferProgress( TransferEvent event, byte[] buffer, int length )
61 {
62 try
63 {
64 listener.transportProgressed( ByteBuffer.wrap( buffer, 0, length ) );
65 }
66 catch ( TransferCancelledException e )
67 {
68 throw new WagonCancelledException( e );
69 }
70 }
71
72 }