nashorn/samples/locales.js
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     1 /*
       
     2  * Copyright (c) 2014, 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  */
       
    31 
       
    32 // Simple program that lists available locals. This is ECMAScript
       
    33 // port of Java example by @brunoborges
       
    34 
       
    35 // Java classes used
       
    36 var Arrays = Java.type("java.util.Arrays");
       
    37 var Collectors = Java.type("java.util.stream.Collectors");
       
    38 var JString = Java.type("java.lang.String");
       
    39 var Locale = Java.type("java.util.Locale");
       
    40 
       
    41 var formatStr = "Country : %s \t\t\t\t:\t Country Code : %s";
       
    42 
       
    43 // Nashorn allows script functions to be passed
       
    44 // whereever Java8 lambdas are expected.
       
    45 
       
    46 // Nashorn also supports "expression closures" supported by
       
    47 // Mozilla JavaScript 1.8 version. See also
       
    48 // https://developer.mozilla.org/en-US/docs/Web/JavaScript/New_in_JavaScript/1.8
       
    49 
       
    50 // The following prints locales in (country) display name order
       
    51 var list = Arrays.asList(Locale.getISOCountries())
       
    52     .stream()
       
    53     .map(function(x) new Locale("", x))
       
    54     .sorted(function(c0, c1) c0.displayCountry.compareTo(c1.displayCountry))
       
    55     .map(function(l) JString.format(formatStr, l.displayCountry, l.country))
       
    56     .collect(Collectors.toList());
       
    57 
       
    58 list.forEach(print);