samples/lines.js

Wed, 18 Oct 2017 09:15:26 -0700

author
asaha
date
Wed, 18 Oct 2017 09:15:26 -0700
changeset 2196
c21cf096431b
parent 1727
18477de7c28f
permissions
-rw-r--r--

Added tag jdk8u161-b03 for changeset e33ecc88dd63

sundar@1727 1 /*
sundar@1727 2 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
sundar@1727 3 *
sundar@1727 4 * Redistribution and use in source and binary forms, with or without
sundar@1727 5 * modification, are permitted provided that the following conditions
sundar@1727 6 * are met:
sundar@1727 7 *
sundar@1727 8 * - Redistributions of source code must retain the above copyright
sundar@1727 9 * notice, this list of conditions and the following disclaimer.
sundar@1727 10 *
sundar@1727 11 * - Redistributions in binary form must reproduce the above copyright
sundar@1727 12 * notice, this list of conditions and the following disclaimer in the
sundar@1727 13 * documentation and/or other materials provided with the distribution.
sundar@1727 14 *
sundar@1727 15 * - Neither the name of Oracle nor the names of its
sundar@1727 16 * contributors may be used to endorse or promote products derived
sundar@1727 17 * from this software without specific prior written permission.
sundar@1727 18 *
sundar@1727 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
sundar@1727 20 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
sundar@1727 21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
sundar@1727 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
sundar@1727 23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
sundar@1727 24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
sundar@1727 25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
sundar@1727 26 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
sundar@1727 27 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
sundar@1727 28 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
sundar@1727 29 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
sundar@1727 30 */
sundar@1727 31
sundar@1727 32 var Files = java.nio.file.Files;
sundar@1727 33 var File = java.io.File;
sundar@1727 34 var d = arguments.length == 0? "." : arguments[0];
sundar@1727 35
sundar@1727 36 // print total number of lines in all .java files under a
sundar@1727 37 // given directory (recursively)
sundar@1727 38
sundar@1727 39 print(Files.walk(new File(d).toPath()).
sundar@1727 40 filter(function(p) p.toString().endsWith(".java")).
sundar@1727 41 mapToInt(function(p) Files.lines(p).count()).sum())

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