1 /*

     2  * Copyright (c) 2014, 2015, 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 javax.tools;

    27 

    28 import java.io.File;

    29 import java.nio.file.Path;

    30 import java.util.Iterator;

    31 

    32 /**

    33  * Package-private utility methods to convert between files and paths.

    34  *

    35  * @since 9

    36  */

    37 class FileManagerUtils {

    38     private FileManagerUtils() { }

    39 

    40     static Iterable<Path> asPaths(final Iterable<? extends File> files) {

    41         return () -> new Iterator<Path>() {

    42             Iterator<? extends File> iter = files.iterator();

    43 

    44             @Override

    45             public boolean hasNext() {

    46                 return iter.hasNext();

    47             }

    48 

    49             @Override

    50             public Path next() {

    51                 return iter.next().toPath();

    52             }

    53         };

    54     }

    55 

    56     static Iterable<File> asFiles(final Iterable<? extends Path> paths) {

    57         return () -> new Iterator<File>() {

    58             Iterator<? extends Path> iter = paths.iterator();

    59 

    60             @Override

    61             public boolean hasNext() {

    62                 return iter.hasNext();

    63             }

    64 

    65             @Override

    66             public File next() {

    67                 Path p = iter.next();

    68                 try {

    69                     return p.toFile();

    70                 } catch (UnsupportedOperationException e) {

    71                     throw new IllegalArgumentException(p.toString(), e);

    72                 }

    73             }

    74         };

    75     }

    76 }