/******************************************************************************* * * * File: Rhino_11.java Revision: 1.0 * * * * Purpose: creates JavaScript objects from within Java and tests them un- * * der JavaScript * * * * Creation: 01.11.2001 Last Modification: 01.11.2001 * * * * Platform: IBM-compatible PC running Windows 98SE * * * * Environment: Java 1.3 * * * * Author: Andreas Rozek Phone: ++49 (711) 6770682 * * Kirschblütenweg 15 Fax: - * * D-70569 Stuttgart EMail: Andreas.Rozek@T-Online.De * * Germany * * * * URL: http://www.Andreas-Rozek.de/ * * * * Copyright: this software is published under the "GNU Lesser General Pub- * * lic License" (see "http://www.fsf.org/copyleft/lesser.html" * * for additional information) * * * * Comments: (none) * * * *******************************************************************************/ import java.io.*; // Java file handling and stream IO import org.mozilla.javascript.*; // Rhino distribution classes public class Rhino_11 extends ScriptableObject { /******************************************************************************* * * * Non-Public Class Variables * * * *******************************************************************************/ static Rhino_11 Global; // refers to the JavaScript "Global" object static Object undefined; // shortcut referring to the "undefined" value /******************************************************************************* * * * Public Class Methods * * * *******************************************************************************/ /******************************************************************************* * * * evaluateFile evaluates the contents of a given (script source) file * * * *******************************************************************************/ public static void evaluateFile (Context actualContext, String FileName) { FileReader InStream = null; try { InStream = new FileReader(FileName); actualContext.evaluateReader(Global, InStream, FileName, 1, null); } catch (FileNotFoundException Signal) { Context.reportError( "unable to open file \"" + FileName + "\" (reason: \"" + Signal.getMessage() + "\")" ); } catch (WrappedException Signal) { Context.reportError( "WrappedException while evaluating file \"" + FileName + "\" (reason: \"" + Signal.getMessage() + "\")" ); } catch (EvaluatorException Signal) { Context.reportError( "EvaluatorException while evaluating file \"" + FileName + "\" (reason: \"" + Signal.getMessage() + "\")" ); } catch (JavaScriptException Signal) { Context.reportError( "JavaScriptException while evaluating file \"" + FileName + "\" (reason: \"" + Signal.getMessage() + "\")" ); } catch (IOException Signal) { Context.reportError( "error while reading file \"" + FileName + "\" (reason: \"" + Signal.getMessage() + "\")" ); } finally { try { if (InStream != null) InStream.close(); } catch (Exception Signal) { /* nop */ }; }; }; /******************************************************************************* * * * evaluateString evaluates the contents of a given script source * * * *******************************************************************************/ public static void evaluateString (Context actualContext, String SourceText) { try { actualContext.evaluateString(Global, SourceText, "Rhino_11", 1, null); } catch (WrappedException Signal) { Context.reportError( "WrappedException while evaluating the internal script source " + "(reason: \"" + Signal.getMessage() + "\")" ); } catch (EvaluatorException Signal) { Context.reportError( "EvaluatorException while evaluating the internal script source " + "(reason: \"" + Signal.getMessage() + "\")" ); } catch (JavaScriptException Signal) { Context.reportError( "JavaScriptException while evaluating the internal script source " + "(reason: \"" + Signal.getMessage() + "\")" ); }; }; /******************************************************************************* * * * exit leaves the shell with the given return code * * * *******************************************************************************/ public static void exit ( Context actualContext, Scriptable actualObject, Object[] ArgList, Function FunctionContext ) { if (ArgList.length == 0) { java.lang.System.exit(0); } else if (ArgList.length != 1) { throw new IllegalArgumentException("exit(code) called with more than one argument"); } else if (ArgList[0] == undefined) { throw new IllegalArgumentException("exit(code) called with an undefined argument"); } else { double ReturnCode = Context.toNumber(ArgList[0]); if (Double.isNaN(ReturnCode)) { throw new IllegalArgumentException("exit(code) called with non-numeric argument"); } else if (Double.isInfinite(ReturnCode) || (ReturnCode < Integer.MIN_VALUE) || (ReturnCode > Integer.MAX_VALUE)) { throw new IllegalArgumentException("exit(code) called with infinite numeric argument"); } else { java.lang.System.exit((int) ReturnCode); }; }; }; /******************************************************************************* * * * main main program * * * *******************************************************************************/ public static void main (String ArgList[]) { if (ArgList.length != 0) { complainln("Warning: any given command line arguments will be ignored"); }; /**** prepare Rhino execution environment ****/ Global = new Rhino_11(); // let "Rhino_11" become the "Global" object Context ScriptContext = Context.enter(); Scriptable ScriptScope = ScriptContext.initStandardObjects(Global); undefined = ScriptContext.getUndefinedValue(); /**** register internal functions ****/ String[] NameList = {"exit", "print", "println"}; try { Global.defineFunctionProperties(NameList, Rhino_11.class, ScriptableObject.DONTENUM); } catch (PropertyException Signal) { complainln("unable to register global shell functions"); exit(-1); }; /**** now create various JavaScript objects ****/ Global.put("aBoolean", Global, new Boolean(true)); Global.put("aByte", Global, new Byte ((byte) 1)); Global.put("aShort", Global, new Short ((short) 2)); Global.put("anInteger", Global, new Integer(3)); Global.put("aLong", Global, new Long (4)); Global.put("aFloat", Global, new Float (5.0)); Global.put("aDouble", Global, new Double (6.0)); Global.put("aString", Global, new String ("(anything)")); Global.put("anArray", Global, ScriptContext.newArray(Global, new Object[] {new Boolean(true), new Byte((byte) 1), new Short((short) 2), new Integer(3), new Long(4), new String("(anything)")} )); Global.put("aJavaArray", Global, new int[] {0,1,2,3,4}); Global.put("aSilentObject", Global, new SilentObject()); Global.put("aGossipObject", Global, new GossipObject()); Global.put("aBeanObject", Global, new BeanObject()); try { Scriptable UserObject = ScriptContext.newObject(Global); ScriptableObject.putProperty(UserObject, "aBoolean", new Boolean(true)); ScriptableObject.putProperty(UserObject, "aByte", new Byte ((byte) 1)); ScriptableObject.putProperty(UserObject, "aShort", new Short ((short) 2)); ScriptableObject.putProperty(UserObject, "anInteger", new Integer(3)); ScriptableObject.putProperty(UserObject, "aLong", new Long (4)); ScriptableObject.putProperty(UserObject, "aFloat", new Float (5.0)); ScriptableObject.putProperty(UserObject, "aDouble", new Double (6.0)); ScriptableObject.putProperty(UserObject, "aString", new String ("(anything)")); ScriptableObject.putProperty(UserObject, "anArray", ScriptContext.newArray(Global,3)); Global.put("anUserObject", Global, UserObject); } catch (Exception Signal) { complainln("error while creating an \"UserObject\""); complainln("(reason: \"" + Signal.getMessage() + "\")"); exit(-1); }; /**** and test their appearance under JavaScript ****/ evaluateFile(ScriptContext,"Rhino_11.js"); ScriptContext.exit(); /**** that's it! ****/ exit(0); }; /******************************************************************************* * * * print, println print the given arguments onto "stdout" * * * *******************************************************************************/ public static void print ( Context actualContext, Scriptable actualObject, Object[] ArgList, Function FunctionContext ) { for (int i = 0; i < ArgList.length; i++) { // don't worry about "undefined" arguments java.lang.System.out.print(Context.toString(ArgList[i])); }; }; public static void println ( Context actualContext, Scriptable actualObject, Object[] ArgList, Function FunctionContext ) { print(actualContext,actualObject,ArgList,FunctionContext); java.lang.System.out.println(); }; /******************************************************************************* * * * Non-Public Class Methods * * * *******************************************************************************/ /******************************************************************************* * * * complain, complainln print the given message onto "stderr" * * * *******************************************************************************/ static void complain (String Message) { java.lang.System.out.print(Message); }; static void complainln () { java.lang.System.out.println(); }; static void complainln (String Message) { java.lang.System.out.println(Message); }; /******************************************************************************* * * * exit leaves the program with the given return code * * * *******************************************************************************/ static void exit (int ReturnCode) { java.lang.System.exit(ReturnCode); }; /******************************************************************************* * * * print, println print the given message onto "stdout" * * * *******************************************************************************/ static void print (String Message) { java.lang.System.out.print(Message); }; static void println () { java.lang.System.out.println(); }; static void println (String Message) { java.lang.System.out.println(Message); }; /******************************************************************************* * * * Public Instance Methods * * * *******************************************************************************/ /******************************************************************************* * * * getClassName yields the (Rhino-internal) name of this "class" * * * *******************************************************************************/ public String getClassName () { return "global"; }; /******************************************************************************* * * * Additional Inner Classes * * * *******************************************************************************/ /******************************************************************************* * * * BeanObject - a simple Java Bean object to be passed to JavaScript * * * *******************************************************************************/ public static class BeanObject { boolean aBoolean = true; byte aByte = 1; short aShort = 2; int anInteger = 3; long aLong = 4; float aFloat = 5.0f; double aDouble = 6.0; String aString = "(anything)"; public boolean getaBoolean() {return aBoolean;}; public byte getaByte() {return aByte;}; public short getaShort() {return aShort;}; public int getanInteger() {return anInteger;}; public long getaLong() {return aLong;}; public float getaFloat() {return aFloat;}; public double getaDouble() {return aDouble;}; public String getaString() {return aString;}; public String toString() { return aBoolean + ", " + aByte + ", " + aShort + ", " + anInteger + ", " + aLong + ", " + aFloat + ", " + aDouble + ", \"" + aString + "\""; }; }; /******************************************************************************* * * * GossipObject - a simple object to be passed to JavaScript * * * *******************************************************************************/ public static class GossipObject { public boolean aBoolean = true; public byte aByte = 1; public short aShort = 2; public int anInteger = 3; public long aLong = 4; public float aFloat = 5.0f; public double aDouble = 6.0; public String aString = "(anything)"; public String toString() { return aBoolean + ", " + aByte + ", " + aShort + ", " + anInteger + ", " + aLong + ", " + aFloat + ", " + aDouble + ", \"" + aString + "\""; }; }; /******************************************************************************* * * * SilentObject - a simple Java object with hidden properties * * * *******************************************************************************/ public static class SilentObject { boolean aBoolean = true; byte aByte = 1; short aShort = 2; int anInteger = 3; long aLong = 4; float aFloat = 5.0f; double aDouble = 6.0; String aString = "(anything)"; public String toString() { return aBoolean + ", " + aByte + ", " + aShort + ", " + anInteger + ", " + aLong + ", " + aFloat + ", " + aDouble + ", \"" + aString + "\""; }; }; };