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 

    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 {

    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 }