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org.apache.batik.script.rhino
Class RhinoInterpreter  

java.lang.Object
  org.apache.batik.script.rhino.RhinoInterpreter

All Implemented Interfaces:

org.apache.batik.script.Interpreter, org.apache.batik.i18n.Localizable

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public class RhinoInterpreter

extends java.lang.Object

implements org.apache.batik.script.Interpreter

A simple implementation of Interpreter interface to use Rhino ECMAScript interpreter.

Version:

$Id: RhinoInterpreter.java,v 1.41 2005/03/29 10:48:02 deweese Exp $

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Nested Class Summary
static interface	RhinoInterpreter.ArgumentsBuilder           To build an argument list.
private static class	RhinoInterpreter.Entry
class	RhinoInterpreter.ExtendedContext
static class	RhinoInterpreter.RhinoGetDelegate           Class to act as 'get' delegate for Rhino.

 

Field Summary
static java.lang.String	BIND_NAME_WINDOW           Name of the "window" object when referenced by scripts
private  java.util.LinkedList	compiledScripts
private  ScriptableObject	globalObject
private static int	MAX_CACHED_SCRIPTS           store last 32 precompiled objects.
(package private)  java.util.Map	objects           HashTable to store properties bounds on the global object.
protected  RhinoClassLoader	rhinoClassLoader           The Rhino 'security domain'.
(package private) static java.lang.reflect.Method	rhinoGetter
private  SecurityController	securityController           The SecurityController implementation for Batik, which ensures scripts have access to the server they were downloaded from
static java.lang.String	SOURCE_NAME_SVG           Constant used to describe an SVG source
private static java.lang.String[]	TO_BE_IMPORTED
protected  org.apache.batik.script.Window	window           The window object
private  WrapFactory	wrapFactory

 

Constructor Summary

RhinoInterpreter(java.net.URL documentURL)           Build a Interpreter for ECMAScript using Rhino.

 

Method Summary
void	bindObject(java.lang.String name, java.lang.Object object)           This method registers a particular Java Object in the environment of the interpreter.
(package private)  Scriptable	buildEventTargetWrapper(org.w3c.dom.events.EventTarget obj)           Build the wrapper for objects implement EventTarget.
(package private)  void	callHandler(Function handler, java.lang.Object arg)           To be used by EventTargetWrapper.
(package private)  void	callHandler(Function handler, java.lang.Object[] args)           To be used by WindowWrapper.
(package private)  void	callHandler(Function handler, RhinoInterpreter.ArgumentsBuilder ab)           To be used by WindowWrapper.
(package private)  void	callMethod(ScriptableObject obj, java.lang.String methodName, RhinoInterpreter.ArgumentsBuilder ab)           To be used by WindowWrapper.
void	dispose()           For RhinoInterpreter this method flushes the Rhino caches to avoid memory leaks.
Context	enterContext()           Implementation helper.
java.lang.Object	evaluate(java.io.Reader scriptreader)           This method evaluates a piece of ECMAScript.
java.lang.Object	evaluate(java.io.Reader scriptreader, java.lang.String description)           This method evaluates a piece of ECMAScript.
java.lang.Object	evaluate(java.lang.String scriptstr)           This method evaluates a piece of ECMA script.
java.lang.String	formatMessage(java.lang.String key, java.lang.Object[] args)           Creates and returns a localized message, given the key of the message, 0, data.length in the resource bundle and the message parameters.
java.security.AccessControlContext	getAccessControlContext()           Returns the AccessControlContext associated with this Interpreter.
protected  ScriptableObject	getGlobalObject()           This method returns the ECMAScript global object used by this interpreter.
java.util.Locale	getLocale()           Returns the current locale or null if the locale currently used is the default one.
org.apache.batik.script.Window	getWindow()
void	setLocale(java.util.Locale locale)           Provides a way to the user to specify a locale which override the default one.
void	setOut(java.io.Writer out)           By default Rhino has no output method in its language.

 

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Field Detail

TO_BE_IMPORTED

private static java.lang.String[] TO_BE_IMPORTED

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window

protected org.apache.batik.script.Window window

The window object

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MAX_CACHED_SCRIPTS

private static final int MAX_CACHED_SCRIPTS

store last 32 precompiled objects.

See Also:

Constant Field Values

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SOURCE_NAME_SVG

public static final java.lang.String SOURCE_NAME_SVG

Constant used to describe an SVG source

See Also:

Constant Field Values

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BIND_NAME_WINDOW

public static final java.lang.String BIND_NAME_WINDOW

Name of the "window" object when referenced by scripts

See Also:

Constant Field Values

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globalObject

private ScriptableObject globalObject

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compiledScripts

private java.util.LinkedList compiledScripts

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wrapFactory

private WrapFactory wrapFactory

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rhinoClassLoader

protected RhinoClassLoader rhinoClassLoader

The Rhino 'security domain'. We use the RhinoClassLoader which will grant permissions to connect to the document URL.

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securityController

private SecurityController securityController

The SecurityController implementation for Batik, which ensures scripts have access to the server they were downloaded from

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objects

java.util.Map objects

HashTable to store properties bounds on the global object. So they don't end up in the JavaMethods static table.

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rhinoGetter

static java.lang.reflect.Method rhinoGetter

Constructor Detail

RhinoInterpreter

public RhinoInterpreter(java.net.URL documentURL)

Build a Interpreter for ECMAScript using Rhino.

Method Detail

getWindow

public org.apache.batik.script.Window getWindow()

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getAccessControlContext

public java.security.AccessControlContext getAccessControlContext()

Returns the AccessControlContext associated with this Interpreter.

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enterContext

public Context enterContext()

Implementation helper. Makes sure the proper security is set on the context.

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getGlobalObject

protected ScriptableObject getGlobalObject()

This method returns the ECMAScript global object used by this interpreter.

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evaluate

public java.lang.Object evaluate(java.io.Reader scriptreader)
                          throws org.apache.batik.script.InterpreterException,
                                 java.io.IOException

This method evaluates a piece of ECMAScript.

Specified by:

evaluate in interface org.apache.batik.script.Interpreter

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evaluate

public java.lang.Object evaluate(java.io.Reader scriptreader,
                                 java.lang.String description)
                          throws org.apache.batik.script.InterpreterException,
                                 java.io.IOException

This method evaluates a piece of ECMAScript.

Specified by:

evaluate in interface org.apache.batik.script.Interpreter

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evaluate

public java.lang.Object evaluate(java.lang.String scriptstr)
                          throws org.apache.batik.script.InterpreterException

This method evaluates a piece of ECMA script. The first time a String is passed, it is compiled and evaluated. At next call, the piece of script will only be evaluated to prevent from recompiling it.

Specified by:

evaluate in interface org.apache.batik.script.Interpreter

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dispose

public void dispose()

For RhinoInterpreter this method flushes the Rhino caches to avoid memory leaks.

Specified by:

dispose in interface org.apache.batik.script.Interpreter

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bindObject

public void bindObject(java.lang.String name,
                       java.lang.Object object)

This method registers a particular Java Object in the environment of the interpreter.

Specified by:

bindObject in interface org.apache.batik.script.Interpreter

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callHandler

void callHandler(Function handler,
                 java.lang.Object arg)
           throws JavaScriptException

To be used by EventTargetWrapper.

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callMethod

void callMethod(ScriptableObject obj,
                java.lang.String methodName,
                RhinoInterpreter.ArgumentsBuilder ab)
          throws JavaScriptException

To be used by WindowWrapper.

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callHandler

void callHandler(Function handler,
                 java.lang.Object[] args)
           throws JavaScriptException

To be used by WindowWrapper.

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callHandler

void callHandler(Function handler,
                 RhinoInterpreter.ArgumentsBuilder ab)
           throws JavaScriptException

To be used by WindowWrapper.

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buildEventTargetWrapper

Scriptable buildEventTargetWrapper(org.w3c.dom.events.EventTarget obj)

Build the wrapper for objects implement EventTarget.

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setOut

public void setOut(java.io.Writer out)

By default Rhino has no output method in its language. That's why this method does nothing.

Specified by:

setOut in interface org.apache.batik.script.Interpreter

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getLocale

public java.util.Locale getLocale()

Returns the current locale or null if the locale currently used is the default one.

Specified by:

getLocale in interface org.apache.batik.i18n.Localizable

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setLocale

public void setLocale(java.util.Locale locale)

Provides a way to the user to specify a locale which override the default one. If null is passed to this method, the used locale becomes the global one.

Specified by:

setLocale in interface org.apache.batik.i18n.Localizable

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formatMessage

public java.lang.String formatMessage(java.lang.String key,
                                      java.lang.Object[] args)

Creates and returns a localized message, given the key of the message, 0, data.length in the resource bundle and the message parameters. The messages in the resource bundle must have the syntax described in the java.text.MessageFormat class documentation.

Specified by:

formatMessage in interface org.apache.batik.i18n.Localizable

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> org >> apache >> batik >> script >> [ rhino overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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