src/sample/nashorn/passwordgen.js
author adinn
Fri, 26 Jan 2018 16:38:21 +0000
changeset 48682 34e45260c040
parent 47216 71c04702a3d5
permissions -rw-r--r--
8196221: AArch64: Mistake in committed patch for JDK-8195859 Summary: The wrong patch was committed for JDK-8195859 Reviewed-by: aph

/*
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 *
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 *
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 *     notice, this list of conditions and the following disclaimer.
 *
 *   - Redistributions in binary form must reproduce the above copyright
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 *
 *   - Neither the name of Oracle nor the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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 */

// Simple password generator using SecureRandom + stream API

// accept optional password length from command line
var len = arguments.length? parseInt(arguments[0]) : 8;

// Java types used
var Collectors = Java.type("java.util.stream.Collectors");
var SecureRandom = Java.type("java.security.SecureRandom");

// allowed password chars
var chars =
 "!@#$%ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";

// generated and print password
print(new SecureRandom().
    ints(len, 0, chars.length).
    mapToObj(function(i) chars[i]).
    collect(Collectors.joining("")));