1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/samples/print_symlinks.js Fri Sep 04 17:17:44 2015 +0530
1.3 @@ -0,0 +1,50 @@
1.4 +/*
1.5 + * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
1.6 + *
1.7 + * Redistribution and use in source and binary forms, with or without
1.8 + * modification, are permitted provided that the following conditions
1.9 + * are met:
1.10 + *
1.11 + * - Redistributions of source code must retain the above copyright
1.12 + * notice, this list of conditions and the following disclaimer.
1.13 + *
1.14 + * - Redistributions in binary form must reproduce the above copyright
1.15 + * notice, this list of conditions and the following disclaimer in the
1.16 + * documentation and/or other materials provided with the distribution.
1.17 + *
1.18 + * - Neither the name of Oracle nor the names of its
1.19 + * contributors may be used to endorse or promote products derived
1.20 + * from this software without specific prior written permission.
1.21 + *
1.22 + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
1.23 + * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
1.24 + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
1.25 + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
1.26 + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
1.27 + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
1.28 + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
1.29 + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
1.30 + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
1.31 + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
1.32 + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.33 + */
1.34 +
1.35 +// Print all symbolic links in user's home directory
1.36 +
1.37 +// JavaImporter and "with" to simulate "import" statements in Java.
1.38 +// See https://wiki.openjdk.java.net/display/Nashorn/Nashorn+extensions
1.39 +
1.40 +with (new JavaImporter(java.nio.file, java.lang)) {
1.41 +
1.42 + var userDir = System.getProperty("user.dir")
1.43 + var home = FileSystems.default.getPath(userDir);
1.44 +
1.45 + // JS functions can be passed where Java lambdas are required.
1.46 + // Also, using "Expression closure" extension here.
1.47 + // See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Expression_Closures
1.48 +
1.49 + Files.walk(home).
1.50 + filter(function(p) Files.isSymbolicLink(p)).
1.51 + forEach(function(p)
1.52 + print(p, '->', Files.readSymbolicLink(p)));
1.53 +}
