Wed, 07 Oct 2015 10:01:40 -0700
Merge
sundar@1373 | 1 | /* |
sundar@1373 | 2 | * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. |
sundar@1373 | 3 | * |
sundar@1373 | 4 | * Redistribution and use in source and binary forms, with or without |
sundar@1373 | 5 | * modification, are permitted provided that the following conditions |
sundar@1373 | 6 | * are met: |
sundar@1373 | 7 | * |
sundar@1373 | 8 | * - Redistributions of source code must retain the above copyright |
sundar@1373 | 9 | * notice, this list of conditions and the following disclaimer. |
sundar@1373 | 10 | * |
sundar@1373 | 11 | * - Redistributions in binary form must reproduce the above copyright |
sundar@1373 | 12 | * notice, this list of conditions and the following disclaimer in the |
sundar@1373 | 13 | * documentation and/or other materials provided with the distribution. |
sundar@1373 | 14 | * |
sundar@1373 | 15 | * - Neither the name of Oracle nor the names of its |
sundar@1373 | 16 | * contributors may be used to endorse or promote products derived |
sundar@1373 | 17 | * from this software without specific prior written permission. |
sundar@1373 | 18 | * |
sundar@1373 | 19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS |
sundar@1373 | 20 | * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
sundar@1373 | 21 | * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
sundar@1373 | 22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
sundar@1373 | 23 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
sundar@1373 | 24 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
sundar@1373 | 25 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
sundar@1373 | 26 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
sundar@1373 | 27 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
sundar@1373 | 28 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
sundar@1373 | 29 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
sundar@1373 | 30 | */ |
sundar@1373 | 31 | |
sundar@1373 | 32 | /** |
sundar@1373 | 33 | * Simple Web Console-like support for Nashorn. In addition to |
sundar@1373 | 34 | * Web console object methods, this console add methods of |
sundar@1373 | 35 | * java.io.Console as well. Note:not all web console methods are |
sundar@1373 | 36 | * implemented but useful subset is implemented. |
sundar@1373 | 37 | * |
sundar@1373 | 38 | * See also: https://developer.mozilla.org/en/docs/Web/API/console |
sundar@1373 | 39 | */ |
sundar@1373 | 40 | |
sundar@1373 | 41 | |
sundar@1373 | 42 | if (typeof console == 'undefined') { |
sundar@1373 | 43 | |
sundar@1373 | 44 | (function() { |
sundar@1373 | 45 | var LocalDateTime = Java.type("java.time.LocalDateTime"); |
sundar@1373 | 46 | var System = Java.type("java.lang.System"); |
sundar@1373 | 47 | var jconsole = System.console(); |
sundar@1373 | 48 | |
sundar@1373 | 49 | // add a new global variable called "console" |
sundar@1373 | 50 | this.console = { |
sundar@1373 | 51 | }; |
sundar@1373 | 52 | |
sundar@1373 | 53 | function addConsoleMethods() { |
sundar@1373 | 54 | // expose methods of java.io.Console as an extension |
sundar@1373 | 55 | var placeholder = "-*-"; |
sundar@1373 | 56 | // put a placeholder for each name from java.lang.Object |
sundar@1373 | 57 | var objMethods = Object.bindProperties({}, new java.lang.Object()); |
sundar@1373 | 58 | for (var m in objMethods) { |
sundar@1373 | 59 | console[m] = placeholder; |
sundar@1373 | 60 | } |
sundar@1373 | 61 | |
sundar@1373 | 62 | // bind only the methods of java.io.Console |
sundar@1373 | 63 | // This bind will skip java.lang.Object methods as console |
sundar@1373 | 64 | // has properties of same name. |
sundar@1373 | 65 | Object.bindProperties(console, jconsole); |
sundar@1373 | 66 | |
sundar@1373 | 67 | // Now, delete java.lang.Object methods |
sundar@1373 | 68 | for (var m in console) { |
sundar@1373 | 69 | if (console[m] == placeholder) { |
sundar@1373 | 70 | delete console[m]; |
sundar@1373 | 71 | } |
sundar@1373 | 72 | } |
sundar@1373 | 73 | } |
sundar@1373 | 74 | |
sundar@1373 | 75 | addConsoleMethods(); |
sundar@1373 | 76 | |
sundar@1373 | 77 | function consoleLog(type, msg) { |
sundar@1373 | 78 | // print type of message, then time. |
sundar@1373 | 79 | jconsole.format("%s [%s] ", type, LocalDateTime.now().toString()); |
sundar@1373 | 80 | if (typeof msg == 'string') { |
sundar@1373 | 81 | jconsole.format(msg + "\n", Array.prototype.slice.call(arguments, 2)); |
sundar@1373 | 82 | } else { |
sundar@1373 | 83 | // simple space separated values and newline at the end |
sundar@1373 | 84 | var arr = Array.prototype.slice.call(arguments, 1); |
sundar@1373 | 85 | jconsole.format("%s\n", arr.join(" ")); |
sundar@1373 | 86 | } |
sundar@1373 | 87 | } |
sundar@1373 | 88 | |
sundar@1373 | 89 | console.toString = function() "[object Console]"; |
sundar@1373 | 90 | |
sundar@1373 | 91 | // web console functions |
sundar@1373 | 92 | |
sundar@1373 | 93 | console.assert = function(expr) { |
sundar@1373 | 94 | if (! expr) { |
sundar@1373 | 95 | arguments[0] = "Assertion Failed:"; |
sundar@1373 | 96 | consoleLog.apply(console, arguments); |
sundar@1373 | 97 | // now, stack trace at the end |
sundar@1373 | 98 | jconsole.format("%s\n", new Error().stack); |
sundar@1373 | 99 | } |
sundar@1373 | 100 | }; |
sundar@1373 | 101 | |
sundar@1373 | 102 | // dummy clear to avoid error! |
sundar@1373 | 103 | console.clear = function() {}; |
sundar@1373 | 104 | |
sundar@1373 | 105 | var counter = { |
sundar@1373 | 106 | get: function(label) { |
sundar@1373 | 107 | if (! this[label]) { |
sundar@1373 | 108 | return this[label] = 1; |
sundar@1373 | 109 | } else { |
sundar@1373 | 110 | return ++this[label]; |
sundar@1373 | 111 | } |
sundar@1373 | 112 | } |
sundar@1373 | 113 | }; |
sundar@1373 | 114 | |
sundar@1373 | 115 | // counter |
sundar@1373 | 116 | console.count = function(label) { |
sundar@1373 | 117 | label = label? String(label) : "<no label>"; |
sundar@1373 | 118 | jconsole.format("%s: %d\n",label, counter.get(label).intValue()); |
sundar@1373 | 119 | } |
sundar@1373 | 120 | |
sundar@1373 | 121 | // logging |
sundar@1373 | 122 | console.error = consoleLog.bind(jconsole, "ERROR"); |
sundar@1373 | 123 | console.info = consoleLog.bind(jconsole, "INFO"); |
sundar@1373 | 124 | console.log = console.info; |
sundar@1373 | 125 | console.debug = console.log; |
sundar@1373 | 126 | console.warn = consoleLog.bind(jconsole, "WARNING"); |
sundar@1373 | 127 | |
sundar@1373 | 128 | // print stack trace |
sundar@1373 | 129 | console.trace = function() { |
sundar@1373 | 130 | jconsole.format("%s\n", new Error().stack); |
sundar@1373 | 131 | }; |
sundar@1373 | 132 | })(); |
sundar@1373 | 133 | |
sundar@1373 | 134 | } |