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 an {@link IOIterator} that throws {@link UncheckedIOException} instead of {@link IOException}.
27 * <p>
28 * Keep package-private for now.
29 * </p>
30 *
31 * @param <E> the type of elements returned by this iterator.
32 */
33 final class UncheckedIOIterator<E> implements Iterator<E> {
34
35 private final IOIterator<E> delegate;
36
37 /**
38 * Constructs a new instance.
39 *
40 * @param delegate The delegate
41 */
42 UncheckedIOIterator(final IOIterator<E> delegate) {
43 this.delegate = Objects.requireNonNull(delegate, "delegate");
44 }
45
46 @Override
47 public boolean hasNext() {
48 return Uncheck.getAsBoolean(delegate::hasNext);
49 }
50
51 @Override
52 public E next() {
53 return Uncheck.get(delegate::next);
54 }
55
56 @Override
57 public void remove() {
58 Uncheck.run(delegate::remove);
59 }
60 }