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.io.function;
19
20 import java.io.IOException;
21 import java.io.UncheckedIOException;
22 import java.util.Iterator;
23 import java.util.Spliterator;
24 import java.util.stream.BaseStream;
25
26 /**
27 * An {@link BaseStream} for a {@link IOBaseStream} that throws {@link UncheckedIOException} instead of
28 * {@link IOException}.
29 *
30 * Keep package-private for now.
31 *
32 * @param <T> the type of the stream elements.
33 * @param <S> the type of the IO stream extending {@code IOBaseStream}.
34 * @param <B> the type of the stream extending {@code BaseStream}.
35 */
36 final class UncheckedIOBaseStream<T, S extends IOBaseStream<T, S, B>, B extends BaseStream<T, B>> implements BaseStream<T, B> {
37
38 private final S delegate;
39
40 UncheckedIOBaseStream(final S delegate) {
41 this.delegate = delegate;
42 }
43
44 @Override
45 public void close() {
46 delegate.close();
47 }
48
49 @Override
50 public boolean isParallel() {
51 return delegate.isParallel();
52 }
53
54 @Override
55 public Iterator<T> iterator() {
56 return delegate.iterator().asIterator();
57 }
58
59 @SuppressWarnings("resource")
60 @Override
61 public B onClose(final Runnable closeHandler) {
62 return Uncheck.apply(delegate::onClose, () -> closeHandler.run()).unwrap();
63 }
64
65 @SuppressWarnings("resource")
66 @Override
67 public B parallel() {
68 return delegate.parallel().unwrap();
69 }
70
71 @SuppressWarnings("resource")
72 @Override
73 public B sequential() {
74 return delegate.sequential().unwrap();
75 }
76
77 @Override
78 public Spliterator<T> spliterator() {
79 return delegate.spliterator().unwrap();
80 }
81
82 @SuppressWarnings("resource")
83 @Override
84 public B unordered() {
85 return delegate.unordered().unwrap();
86 }
87
88 }