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
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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.
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24  */
25 
26 package sun.nio.fs;
27 
28 import java.nio.file.*;
29 import java.io.File;
30 import java.io.IOException;
31 import java.util.Iterator;
32 import java.util.NoSuchElementException;
33 
34 /**
35  * Base implementation class of {@code Path}.
36  */
37 
38 abstract class AbstractPath implements Path {
AbstractPath()39     protected AbstractPath() { }
40 
41     @Override
startsWith(String other)42     public final boolean startsWith(String other) {
43         return startsWith(getFileSystem().getPath(other));
44     }
45 
46     @Override
endsWith(String other)47     public final boolean endsWith(String other) {
48         return endsWith(getFileSystem().getPath(other));
49     }
50 
51     @Override
resolve(String other)52     public final Path resolve(String other) {
53         return resolve(getFileSystem().getPath(other));
54     }
55 
56     @Override
resolveSibling(Path other)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
resolveSibling(String other)65     public final Path resolveSibling(String other) {
66         return resolveSibling(getFileSystem().getPath(other));
67     }
68 
69     @Override
iterator()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
toFile()95     public final File toFile() {
96         return new File(toString());
97     }
98 
99     @Override
register(WatchService watcher, WatchEvent.Kind<?>... events)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