jdk8-mips64-public/nashorn: samples/ziplist.js@2f1b9f4daec1 (annotated)

samples/ziplist.js@2f1b9f4daec1 (annotated)

samples/ziplist.js

Fri, 05 Jun 2015 12:38:53 +0200

author: mhaupt
date: Fri, 05 Jun 2015 12:38:53 +0200
changeset 1398: 2f1b9f4daec1
parent 963: e2497b11a021
permissions: -rw-r--r--

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

 /*
  * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  *   - Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  *
  *   - Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
  *     documentation and/or other materials provided with the distribution.
  *
  *   - Neither the name of Oracle nor the names of its
  *     contributors may be used to endorse or promote products derived
  *     from this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 if (arguments.length == 0) {
     print("Usage: jjs ziplist -- <zip-file>");
     exit(1);
 }
 // list the content details of a .zip or .jar file
 var file = arguments[0];
 // java classes used
 var Attributes = Java.type("java.util.jar.Attributes");
 var FileTime = Java.type("java.nio.file.attribute.FileTime");
 var JarFile = Java.type("java.util.jar.JarFile");
 var ZipEntry = Java.type("java.util.zip.ZipEntry");
 var ZipFile = Java.type("java.util.zip.ZipFile");
 var zf = file.endsWith(".jar")? new JarFile(file) : new ZipFile(file);
 var entries = zf.entries();
 // make overall output a valid JSON
 var zfObj = {
     name: zf.name,
     comment: zf.comment,
     size: zf.size(),
     entries: []
 };
 while (entries.hasMoreElements()) {
     zfObj.entries.push(entries.nextElement());
 }
 print(JSON.stringify(zfObj, function (key, value) {
    if (value instanceof ZipEntry) {
        return Object.bindProperties({}, value);
    } else if (value instanceof FileTime) {
        return value.toString();
    } else if (value instanceof Attributes) {
        var attrs = {};
        var itr = value.entrySet().iterator();
        while (itr.hasNext()) {
            var n = itr.next();
            attrs[n.key] = String(n.value);
        }
        return attrs;
    }
    return value;
 }, ' '));
 zf.close();