samples/print_symlinks.js

Wed, 18 Oct 2017 09:15:26 -0700

author
asaha
date
Wed, 18 Oct 2017 09:15:26 -0700
changeset 2196
c21cf096431b
parent 1524
3f4320a01539
permissions
-rw-r--r--

Added tag jdk8u161-b03 for changeset e33ecc88dd63

     1 /*
     2  * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
     3  *
     4  * Redistribution and use in source and binary forms, with or without
     5  * modification, are permitted provided that the following conditions
     6  * are met:
     7  *
     8  *   - Redistributions of source code must retain the above copyright
     9  *     notice, this list of conditions and the following disclaimer.
    10  *
    11  *   - Redistributions in binary form must reproduce the above copyright
    12  *     notice, this list of conditions and the following disclaimer in the
    13  *     documentation and/or other materials provided with the distribution.
    14  *
    15  *   - Neither the name of Oracle nor the names of its
    16  *     contributors may be used to endorse or promote products derived
    17  *     from this software without specific prior written permission.
    18  *
    19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
    20  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
    21  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
    22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
    23  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
    24  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
    25  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
    26  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
    27  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
    28  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
    29  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    30  */
    32 // Print all symbolic links in user's home directory
    34 // JavaImporter and "with" to simulate "import" statements in Java.
    35 // See https://wiki.openjdk.java.net/display/Nashorn/Nashorn+extensions
    37 with (new JavaImporter(java.nio.file, java.lang)) {
    39   var userDir = System.getProperty("user.dir")
    40   var home = FileSystems.default.getPath(userDir);
    42   // JS functions can be passed where Java lambdas are required.
    43   // Also, using "Expression closure" extension here.
    44   // See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Expression_Closures
    46   Files.walk(home).
    47     filter(function(p) Files.isSymbolicLink(p)).
    48     forEach(function(p)
    49       print(p, '->', Files.readSymbolicLink(p)));
    50 }

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