1 package org.apache.maven.surefire.api.util.internal;
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.io.IOException;
23 import java.nio.ByteBuffer;
24 import java.nio.channels.ClosedChannelException;
25 import java.nio.channels.NonReadableChannelException;
26 import java.nio.channels.ReadableByteChannel;
27
28 /**
29 * The channel used for reads which cannot be implicitly closed after the operational Thread
30 * is {@link Thread#isInterrupted() interrupted}.
31 *
32 * @since 3.0.0-M5
33 */
34 abstract class AbstractNoninterruptibleReadableChannel implements ReadableByteChannel
35 {
36 private volatile boolean open = true;
37
38 protected abstract int readImpl( ByteBuffer src ) throws IOException;
39 protected abstract void closeImpl() throws IOException;
40
41 @Override
42 public final int read( ByteBuffer src ) throws IOException
43 {
44 if ( !isOpen() )
45 {
46 throw new ClosedChannelException();
47 }
48
49 if ( !src.hasArray() || src.isReadOnly() )
50 {
51 throw new NonReadableChannelException();
52 }
53
54 return src.hasRemaining() ? readImpl( src ) : 0;
55 }
56
57 @Override
58 public final boolean isOpen()
59 {
60 return open;
61 }
62
63 @Override
64 public final void close() throws IOException
65 {
66 open = false;
67 closeImpl();
68 }
69 }