66 lines
2.4 KiB
JavaScript
66 lines
2.4 KiB
JavaScript
# Usage: jjs -cp buffer_indexing_linker.jar buffer_index.js
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/*
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* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* - Neither the name of Oracle nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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// This script depends on buffer indexing dynalink linker. Without that
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// linker in classpath, this script will fail to run properly.
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function str(buf) {
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var s = ''
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for (var i = 0; i < buf.length; i++)
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s += buf[i] + ","
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return s
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}
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var ByteBuffer = Java.type("java.nio.ByteBuffer")
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var bb = ByteBuffer.allocate(10)
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for (var i = 0; i < bb.length; i++)
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bb[i] = i*i
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print(str(bb))
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var CharBuffer = Java.type("java.nio.CharBuffer")
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var cb = CharBuffer.wrap("hello world")
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print(str(cb))
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var RandomAccessFile = Java.type("java.io.RandomAccessFile")
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var raf = new RandomAccessFile("buffer_index.js", "r")
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var chan = raf.getChannel()
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var fileSize = chan.size()
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var buf = ByteBuffer.allocate(fileSize)
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chan.read(buf)
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chan.close()
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var str = ''
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for (var i = 0; i < buf.length; i++)
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str += String.fromCharCode(buf[i])
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print(str)
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