jdk8-mips64-public/nashorn: samples/console.js@2f1b9f4daec1

8080087: Nashorn $ENV.PWD is originally undefined
Summary: On Windows, the PWD environment variable does not exist and cannot be imported in scripting mode, so it is set explicitly.
Reviewed-by: lagergren, sundar

     1 /*

     2  * Copyright (c) 2015, 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  */

    32 /**

    33  * Simple Web Console-like support for Nashorn. In addition to

    34  * Web console object methods, this console add methods of

    35  * java.io.Console as well. Note:not all web console methods are

    36  * implemented but useful subset is implemented.

    37  *

    38  * See also: https://developer.mozilla.org/en/docs/Web/API/console

    39  */

    42 if (typeof console == 'undefined') {

    44 (function() {

    45     var LocalDateTime = Java.type("java.time.LocalDateTime");

    46     var System = Java.type("java.lang.System");

    47     var jconsole = System.console();

    49     // add a new global variable called "console"

    50     this.console = {

    51     };

    53     function addConsoleMethods() {

    54         // expose methods of java.io.Console as an extension

    55         var placeholder = "-*-";

    56         // put a placeholder for each name from java.lang.Object

    57         var objMethods = Object.bindProperties({}, new java.lang.Object());

    58         for (var m in objMethods) {

    59             console[m] = placeholder;

    60         }

    62         // bind only the methods of java.io.Console

    63         // This bind will skip java.lang.Object methods as console

    64         // has properties of same name.

    65         Object.bindProperties(console, jconsole);

    67         // Now, delete java.lang.Object methods

    68         for (var m in console) {

    69             if (console[m] == placeholder) {

    70                 delete console[m];

    71             }

    72         }

    73     }

    75     addConsoleMethods();

    77     function consoleLog(type, msg) {

    78         // print type of message, then time.

    79         jconsole.format("%s [%s] ", type, LocalDateTime.now().toString());

    80         if (typeof msg == 'string') {

    81             jconsole.format(msg + "\n", Array.prototype.slice.call(arguments, 2));

    82         } else {

    83             // simple space separated values and newline at the end

    84             var arr = Array.prototype.slice.call(arguments, 1);

    85             jconsole.format("%s\n", arr.join(" "));

    86         }

    87     }

    89     console.toString = function() "[object Console]";

    91     // web console functions

    93     console.assert = function(expr) {

    94         if (! expr) {

    95             arguments[0] = "Assertion Failed:";

    96             consoleLog.apply(console, arguments);

    97             // now, stack trace at the end

    98             jconsole.format("%s\n", new Error().stack);

    99         }

   100     };

   102     // dummy clear to avoid error!

   103     console.clear = function() {};

   105     var counter = {

   106         get: function(label) {

   107             if (! this[label]) {

   108                 return this[label] = 1;

   109             } else {

   110                 return ++this[label];

   111             }

   112         }

   113     };

   115     // counter

   116     console.count = function(label) {

   117         label = label? String(label) : "<no label>";

   118         jconsole.format("%s: %d\n",label, counter.get(label).intValue());

   119     }

   121     // logging

   122     console.error = consoleLog.bind(jconsole, "ERROR");

   123     console.info = consoleLog.bind(jconsole, "INFO");

   124     console.log = console.info;

   125     console.debug = console.log;

   126     console.warn = consoleLog.bind(jconsole, "WARNING");

   128     // print stack trace

   129     console.trace = function() {

   130         jconsole.format("%s\n", new Error().stack);

   131     };

   132 })();

   134 }

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

samples/console.js@2f1b9f4daec1

samples/console.js