8010136: Make jrunscript's init.js to work on nashorn

Reviewed-by: lagergren, hannesw

src/share/classes/com/sun/tools/script/shell/init.js

 /*
- * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2005, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -187,11 +187,31 @@ function jlist(list) {
 }
 
 /**
- * This is java.lang.System properties wrapped by jmap.
+ * This is java.lang.System properties wrapped by JSAdapter.
  * For eg. to access java.class.path property, you can use
  * the syntax sysProps["java.class.path"]
  */
-var sysProps = jmap(java.lang.System.getProperties());
+var sysProps = new JSAdapter({
+    __get__ : function (name) {
+        return java.lang.System.getProperty(name);
+    },
+    __has__ : function (name) {
+        return java.lang.System.getProperty(name) != null;
+    },
+    __getIds__ : function() {
+        return java.lang.System.getProperties().keySet().toArray();
+    },
+    __delete__ : function(name) {
+        java.lang.System.clearProperty(name);
+        return true;
+    },
+    __put__ : function (name, value) {
+        java.lang.System.setProperty(name, value);
+    },
+    toString: function() {
+        return "<system properties>";
+    }
+});
 
 // stdout, stderr & stdin
 var out = java.lang.System.out;
@@ -199,9 +219,18 @@ var err = java.lang.System.err;
 // can't use 'in' because it is a JavaScript keyword :-(
 var inp = java.lang.System["in"];
 
-// useful imports for often used io, net classes
-importPackage(java.io);
-importPackage(java.net);
+var BufferedInputStream = java.io.BufferedInputStream;
+var BufferedOutputStream = java.io.BufferedOutputStream;
+var BufferedReader = java.io.BufferedReader;
+var DataInputStream = java.io.DataInputStream;
+var File = java.io.File;
+var FileInputStream = java.io.FileInputStream;
+var FileOutputStream = java.io.FileOutputStream;
+var InputStream = java.io.InputStream;
+var InputStreamReader = java.io.InputStreamReader;
+var OutputStream = java.io.OutputStream;
+var Reader = java.io.Reader;
+var URL = java.net.URL;
 
 /**
  * Generic any object to input stream mapper
@@ -302,7 +331,8 @@ function streamClose(stream) {
  *
  * @param str input from which script is loaded and evaluated
  */
-function load(str) {
+if (typeof(load) == 'undefined') {
+    var load = function(str) {
         var stream = inStream(str);
         var bstream = new BufferedInputStream(stream);
         var reader = new BufferedReader(new InputStreamReader(bstream));
@@ -314,6 +344,7 @@ function load(str) {
             engine.put(engine.FILENAME, oldFilename);
             streamClose(stream);
         }
+    }
 }
 
 // file system utilities
@@ -458,7 +489,7 @@ function dirname(pathname) {
  * @param dir name of the new directory
  */
 function mkdir(dir) {
-	var dir = pathToFile(dir);
+    dir = pathToFile(dir);
     println(dir.mkdir()? "created" : "can not create dir");
 }
 
@@ -469,7 +500,7 @@ function mkdir(dir) {
  * @param dir input path name
  */
 function mkdirs(dir) {
-	var dir = pathToFile(dir);
+    dir = pathToFile(dir);
     println(dir.mkdirs()? "created" : "can not create dirs");
 }
 
@@ -479,7 +510,7 @@ function mkdirs(dir) {
  * @param pathname name of the file
  */
 function rm(pathname) {
-    	file = pathToFile(pathname);
+    var file = pathToFile(pathname);
     if (!file.exists()) {
         println("file not found: " + pathname);
         return false;
@@ -674,25 +705,29 @@ function exec(cmd) {
     $exit = process.exitValue();
 }
 
-/**
+if (typeof(exit) == 'undefined') {
+    /**
      * Exit the shell program.
      *
      * @param exitCode integer code returned to OS shell.
      * optional, defaults to 0
      */
-function exit(code) {
+    var exit = function (code) {
         if (code) {
             java.lang.System.exit(code + 0);
         } else {
             java.lang.System.exit(0);
         }
+    }
 }
 
-/**
+if (typeof(quit) == 'undefined') {
+    /**
      * synonym for exit
      */
-function quit(code) {
+    var quit = function (code) {
         exit(code);
+    }
 }
 
 // XML utilities
@@ -776,7 +811,7 @@ function XSLTransform(inp, style, out) {
     }
 
     var factory = javax.xml.transform.TransformerFactory.newInstance();
-	var tranformer;
+    var transformer;
     if (style) {
         transformer = factory.newTransformer(XMLSource(style));
     } else {
@@ -839,19 +874,21 @@ function echo(x) {
     }
 }
 
-/**
+if (typeof(printf) == 'undefined') {
+    /**
      * This is C-like printf 
      *
      * @param format string to format the rest of the print items
      * @param args variadic argument list
      */
-function printf(format, args/*, more args*/) {	
+    var printf = function (format, args/*, more args*/) {  
         var array = java.lang.reflect.Array.newInstance(java.lang.Object, 
                     arguments.length - 1);
         for (var i = 0; i < array.length; i++) {
             array[i] = arguments[i+1];
         }
-	return java.lang.System.out.printf(format, array);
+        java.lang.System.out.printf(format, array);
+    }
 }
 
 /**
@@ -882,3 +919,27 @@ function read(prompt, multiline) {
         return reader.readLine();
     }
 }
+
+if (typeof(println) == 'undefined') {
+    var print = function(str, newline) {
+        if (typeof(str) == 'undefined') {
+            str = 'undefined';
+        } else if (str == null) {
+            str = 'null';
+        }
+
+        if (!(out instanceof java.io.PrintWriter)) {
+            out = new java.io.PrintWriter(out);
+        }
+
+        out.print(String(str));
+        if (newline) {
+            out.print('\n');
+        }
+        out.flush();
+    }
+
+    var println = function(str) {
+        print(str, true);
+    };
+}