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.Objects;
24
25 /**
26 * An {@link Iterator} for a {@link IOIterator} that throws {@link UncheckedIOException} instead of {@link IOException}.
27 *
28 * Keep package-private for now.
29 *
30 * @param <E> the type of elements returned by this iterator.
31 */
32 final class UncheckedIOIterator<E> implements Iterator<E> {
33
34 private final IOIterator<E> delegate;
35
36 /**
37 * Constructs a new instance.
38 *
39 * @param delegate The delegate
40 */
41 UncheckedIOIterator(final IOIterator<E> delegate) {
42 this.delegate = Objects.requireNonNull(delegate, "delegate");
43 }
44
45 @Override
46 public boolean hasNext() {
47 return Uncheck.get(delegate::hasNext);
48 }
49
50 @Override
51 public E next() {
52 return Uncheck.get(delegate::next);
53 }
54
55 @Override
56 public void remove() {
57 Uncheck.run(delegate::remove);
58 }
59 }