Thu, 09 Mar 2017 12:21:09 -0800
Merge
aoqi@0 | 1 | #// Usage: jjs -scripting interface.js |
aoqi@0 | 2 | |
aoqi@0 | 3 | /* |
aoqi@0 | 4 | * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. |
attila@962 | 5 | * |
aoqi@0 | 6 | * Redistribution and use in source and binary forms, with or without |
aoqi@0 | 7 | * modification, are permitted provided that the following conditions |
aoqi@0 | 8 | * are met: |
attila@962 | 9 | * |
aoqi@0 | 10 | * - Redistributions of source code must retain the above copyright |
aoqi@0 | 11 | * notice, this list of conditions and the following disclaimer. |
attila@962 | 12 | * |
aoqi@0 | 13 | * - Redistributions in binary form must reproduce the above copyright |
aoqi@0 | 14 | * notice, this list of conditions and the following disclaimer in the |
aoqi@0 | 15 | * documentation and/or other materials provided with the distribution. |
attila@962 | 16 | * |
aoqi@0 | 17 | * - Neither the name of Oracle nor the names of its |
aoqi@0 | 18 | * contributors may be used to endorse or promote products derived |
aoqi@0 | 19 | * from this software without specific prior written permission. |
attila@962 | 20 | * |
aoqi@0 | 21 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS |
aoqi@0 | 22 | * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
aoqi@0 | 23 | * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
aoqi@0 | 24 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
aoqi@0 | 25 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
aoqi@0 | 26 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
aoqi@0 | 27 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
aoqi@0 | 28 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
aoqi@0 | 29 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
aoqi@0 | 30 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
aoqi@0 | 31 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
aoqi@0 | 32 | */ |
aoqi@0 | 33 | |
aoqi@0 | 34 | // Example demonstrating how to implement a Java interface |
aoqi@0 | 35 | // whose methods are backed by global script functions |
aoqi@0 | 36 | |
aoqi@0 | 37 | var ScriptEngineManager = Java.type("javax.script.ScriptEngineManager"); |
aoqi@0 | 38 | // create manager |
aoqi@0 | 39 | var manager = new ScriptEngineManager(); |
aoqi@0 | 40 | // create engine |
aoqi@0 | 41 | var engine = manager.getEngineByName("js"); |
aoqi@0 | 42 | |
aoqi@0 | 43 | // eval code - too many script escapes? |
aoqi@0 | 44 | // use heredoc ! |
aoqi@0 | 45 | engine.eval(<<CODE |
aoqi@0 | 46 | function run() { |
aoqi@0 | 47 | print("run global function called"); |
aoqi@0 | 48 | } |
aoqi@0 | 49 | CODE); |
aoqi@0 | 50 | |
aoqi@0 | 51 | // create Java interface object whose methods are |
aoqi@0 | 52 | // implemented by script functions. This is from |
attila@962 | 53 | // javax.script.Invocable. But we are in JS world, |
aoqi@0 | 54 | // don't worry about types :) |
aoqi@0 | 55 | |
aoqi@0 | 56 | var Runnable = Java.type("java.lang.Runnable"); |
aoqi@0 | 57 | var r = engine.getInterface(Runnable.class); |
aoqi@0 | 58 | print(r.class); |
aoqi@0 | 59 | |
aoqi@0 | 60 | r.run(); |