Mercurial > jdk8-mips64-public > nashorn / file revision

 /*

  * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.

  *

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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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  *     documentation and/or other materials provided with the distribution.

  *

  *   - 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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  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR

  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

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 // Find the file with maximum number of lines

 var Files = Java.type("java.nio.file.Files");

 var Integer = Java.type("java.lang.Integer");

 var Paths = Java.type("java.nio.file.Paths");

 var file = arguments.length == 0? "." : arguments[0];

 var ext = arguments.length > 1? arguments[1] : ".java";

 var path = Paths.get(file);

 // return number of lines in given Path (that represents a file)

 function lines(p) {

     var strm = Files.lines(p);

     try {

         return strm.count();

     } finally {

         strm.close();

     }

 }

 // walk files, map to file and lines, find the max    

 var obj = Files.find(path, Integer.MAX_VALUE, 

     function(p, a) !p.toFile().isDirectory() && p.toString().endsWith(ext)).

 map(function(p) ({ path : p, lines: lines(p) })).

 max(function(x, y) x.lines - y.lines).get();

 // print path and lines of the max line file

 print(obj.path, obj.lines);