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 package org.eclipse.aether.transport.wagon;
20
21 import java.nio.ByteBuffer;
22
23 import org.apache.maven.wagon.events.TransferEvent;
24 import org.apache.maven.wagon.observers.AbstractTransferListener;
25 import org.eclipse.aether.spi.connector.transport.TransportListener;
26 import org.eclipse.aether.transfer.TransferCancelledException;
27
28 /**
29 * A wagon transfer listener that forwards events to a transport listener.
30 */
31 final class WagonTransferListener extends AbstractTransferListener {
32
33 private final TransportListener listener;
34
35 WagonTransferListener(TransportListener listener) {
36 this.listener = listener;
37 }
38
39 @Override
40 public void transferStarted(TransferEvent event) {
41 try {
42 listener.transportStarted(0, event.getResource().getContentLength());
43 } catch (TransferCancelledException e) {
44 /*
45 * NOTE: Wagon transfers are not freely abortable. In particular, aborting from
46 * AbstractWagon.fire(Get|Put)Started() would result in unclosed streams so we avoid this case.
47 */
48 }
49 }
50
51 @Override
52 public void transferProgress(TransferEvent event, byte[] buffer, int length) {
53 try {
54 listener.transportProgressed(ByteBuffer.wrap(buffer, 0, length));
55 } catch (TransferCancelledException e) {
56 throw new WagonCancelledException(e);
57 }
58 }
59 }