sundar@1524: /*
sundar@1524:  * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
sundar@1524:  *
sundar@1524:  * Redistribution and use in source and binary forms, with or without
sundar@1524:  * modification, are permitted provided that the following conditions
sundar@1524:  * are met:
sundar@1524:  *
sundar@1524:  *   - Redistributions of source code must retain the above copyright
sundar@1524:  *     notice, this list of conditions and the following disclaimer.
sundar@1524:  *
sundar@1524:  *   - Redistributions in binary form must reproduce the above copyright
sundar@1524:  *     notice, this list of conditions and the following disclaimer in the
sundar@1524:  *     documentation and/or other materials provided with the distribution.
sundar@1524:  *
sundar@1524:  *   - Neither the name of Oracle nor the names of its
sundar@1524:  *     contributors may be used to endorse or promote products derived
sundar@1524:  *     from this software without specific prior written permission.
sundar@1524:  *
sundar@1524:  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
sundar@1524:  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
sundar@1524:  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
sundar@1524:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
sundar@1524:  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
sundar@1524:  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
sundar@1524:  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
sundar@1524:  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
sundar@1524:  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
sundar@1524:  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
sundar@1524:  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
sundar@1524:  */
sundar@1524: 
sundar@1524: // Find the file with maximum number of lines
sundar@1524: 
sundar@1524: var Files = Java.type("java.nio.file.Files");
sundar@1524: var Integer = Java.type("java.lang.Integer");
sundar@1524: var Paths = Java.type("java.nio.file.Paths");
sundar@1524: 
sundar@1524: var file = arguments.length == 0? "." : arguments[0];
sundar@1524: var ext = arguments.length > 1? arguments[1] : ".java";
sundar@1524: var path = Paths.get(file);
sundar@1524: 
sundar@1524: // return number of lines in given Path (that represents a file)
sundar@1524: function lines(p) {
sundar@1524:     var strm = Files.lines(p);
sundar@1524:     try {
sundar@1524:         return strm.count();
sundar@1524:     } finally {
sundar@1524:         strm.close();
sundar@1524:     }
sundar@1524: }
sundar@1524: 
sundar@1524: // walk files, map to file and lines, find the max    
sundar@1524: var obj = Files.find(path, Integer.MAX_VALUE, 
sundar@1524:     function(p, a) !p.toFile().isDirectory() && p.toString().endsWith(ext)).
sundar@1524: map(function(p) ({ path : p, lines: lines(p) })).
sundar@1524: max(function(x, y) x.lines - y.lines).get();
sundar@1524: 
sundar@1524: // print path and lines of the max line file
sundar@1524: print(obj.path, obj.lines);