1 # Usage: jjs -cp buffer_indexing_linker.jar buffer_index.js 2 3 /* 4 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 10 * - Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 13 * - Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * - Neither the name of Oracle nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS 22 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 23 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 25 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 26 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 27 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 28 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 29 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 30 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 31 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 // This script depends on buffer indexing dynalink linker. Without that 35 // linker in classpath, this script will fail to run properly. 36 37 function str(buf) { 38 var s = '' 39 for (var i = 0; i < buf.length; i++) 40 s += buf[i] + "," 41 return s 42 } 43 44 var ByteBuffer = Java.type("java.nio.ByteBuffer") 45 var bb = ByteBuffer.allocate(10) 46 for (var i = 0; i < bb.length; i++) 47 bb[i] = i*i 48 print(str(bb)) 49 50 var CharBuffer = Java.type("java.nio.CharBuffer") 51 var cb = CharBuffer.wrap("hello world") 52 print(str(cb)) 53 54 var RandomAccessFile = Java.type("java.io.RandomAccessFile") 55 var raf = new RandomAccessFile("buffer_index.js", "r") 56 var chan = raf.getChannel() 57 var fileSize = chan.size() 58 var buf = ByteBuffer.allocate(fileSize) 59 chan.read(buf) 60 chan.close() 61 62 var str = '' 63 for (var i = 0; i < buf.length; i++) 64 str += String.fromCharCode(buf[i]) 65 print(str)