1/*
2 * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26package sun.nio.fs;
27
28import java.nio.file.*;
29import java.io.File;
30import java.io.IOException;
31import java.util.Iterator;
32import java.util.NoSuchElementException;
33
34/**
35 * Base implementation class of {@code Path}.
36 */
37
38abstract class AbstractPath implements Path {
39    protected AbstractPath() { }
40
41    @Override
42    public final boolean startsWith(String other) {
43        return startsWith(getFileSystem().getPath(other));
44    }
45
46    @Override
47    public final boolean endsWith(String other) {
48        return endsWith(getFileSystem().getPath(other));
49    }
50
51    @Override
52    public final Path resolve(String other) {
53        return resolve(getFileSystem().getPath(other));
54    }
55
56    @Override
57    public final Path resolveSibling(Path other) {
58        if (other == null)
59            throw new NullPointerException();
60        Path parent = getParent();
61        return (parent == null) ? other : parent.resolve(other);
62    }
63
64    @Override
65    public final Path resolveSibling(String other) {
66        return resolveSibling(getFileSystem().getPath(other));
67    }
68
69    @Override
70    public final Iterator<Path> iterator() {
71        return new Iterator<Path>() {
72            private int i = 0;
73            @Override
74            public boolean hasNext() {
75                return (i < getNameCount());
76            }
77            @Override
78            public Path next() {
79                if (i < getNameCount()) {
80                    Path result = getName(i);
81                    i++;
82                    return result;
83                } else {
84                    throw new NoSuchElementException();
85                }
86            }
87            @Override
88            public void remove() {
89                throw new UnsupportedOperationException();
90            }
91        };
92    }
93
94    @Override
95    public final File toFile() {
96        return new File(toString());
97    }
98
99    @Override
100    public final WatchKey register(WatchService watcher,
101                                   WatchEvent.Kind<?>... events)
102        throws IOException
103    {
104        return register(watcher, events, new WatchEvent.Modifier[0]);
105    }
106}
107