ptolemy.moml.filter

Class JavaScriptThisUpdate

java.lang.Object

ptolemy.moml.filter.MoMLFilterSimple

ptolemy.moml.filter.JavaScriptThisUpdate

All Implemented Interfaces:

MoMLFilter

public class JavaScriptThisUpdate
extends MoMLFilterSimple

Add "this." to certain places in the script parameter of a JavaScript actor.

This class will eventually be removed after we have updated the files.

To update a model, try:

 $PTII/bin/ptinvoke ptolemy.vergil.basic.imprt.accessor.ReloadAccessors model.xml
 

To update all the models that contain JavaScript actors:

 # Generate a list of all the text files in the ptII tree, excluding certain directories like vendors.
 $PTII/adm/bin/ptIItxtfiles <& /tmp/f

 # Generate a list of all of the .xml files.
 cat /tmp/f | egrep '.xml$' < /tmp/x

 # Generate a list of all the .xml files that contain the JavaScript actor.
 cat /tmp/x | xargs egrep 'ptolemy.actor.lib.jjs.JavaScript' | awk -F ':' '{print $1}' | sort | uniq < /tmp/javascriptx

 # Reload the accessors on all the .xml files that contain the JavaScript actor,
 # which as a side effect runs the Backward Compatibility script
 cat /tmp/jsaccessorx | xargs $PTII/bin/ptinvoke ptolemy.vergil.basic.imprt.accessor.ReloadAccessors
 

We use ptinvoke to set the classpath.

ReloadAccessors, opens a model, reloads all the accessors (if any) and saves the model. While opening the model, the BackwardCompatibility MoML filters are run. This class can be one of those filters.

Since:

Ptolemy II 11.0

Author:

Christopher Brooks

Pt.AcceptedRating:

Red (cxh)

Pt.ProposedRating:

Yellow (eal)

Field Summary

Fields

Modifier and Type	Field and Description
protected static java.lang.reflect.Method	_diff The ptolemy.util.test.Diff.diff(String, String) method.

Constructor Summary

Constructors

Constructor and Description
JavaScriptThisUpdate()

Method Summary

Modifier and Type	Method and Description
java.lang.String	filterAttributeValue(NamedObj container, java.lang.String element, java.lang.String attributeName, java.lang.String attributeValue, java.lang.String xmlFile) Handle parameter name changes.
void	filterEndElement(NamedObj container, java.lang.String elementName, java.lang.StringBuffer currentCharData, java.lang.String xmlFile) If the container is a property named "script" contained by the JavaScript actor, then add "this." to certain function calls.
java.lang.String	toString() Return a string that describes what the filter does.

Methods inherited from class ptolemy.moml.filter.MoMLFilterSimple

filterAttributeValue, filterEndElement

Methods inherited from class java.lang.Object

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

Field Detail

_diff

protected static java.lang.reflect.Method _diff

The ptolemy.util.test.Diff.diff(String, String) method.

Constructor Detail

JavaScriptThisUpdate

public JavaScriptThisUpdate()

Method Detail

filterAttributeValue

public java.lang.String filterAttributeValue(NamedObj container,
                                             java.lang.String element,
                                             java.lang.String attributeName,
                                             java.lang.String attributeValue,
                                             java.lang.String xmlFile)

Handle parameter name changes.

Parameters:

container - The container for XML element.

element - The XML element name.

attributeName - The name of the attribute.

attributeValue - The value of the attribute.

xmlFile - The file currently being parsed.

Returns:

A new value for the attribute, or the same value to leave it unchanged, or null to cause the current element to be ignored (unless the attributeValue argument is null).

filterEndElement

public void filterEndElement(NamedObj container,
                             java.lang.String elementName,
                             java.lang.StringBuffer currentCharData,
                             java.lang.String xmlFile)
                      throws java.lang.Exception

If the container is a property named "script" contained by the JavaScript actor, then add "this." to certain function calls.

Parameters:

container - The object defined by the element that this is the end of.

elementName - The element name.

currentCharData - The character data, which appears only in the doc and configure elements

xmlFile - The file currently being parsed.

Throws:

java.lang.Exception - if there is a problem substituting in the new value.

toString

public java.lang.String toString()

Return a string that describes what the filter does.

Specified by:

toString in interface MoMLFilter

Overrides:

toString in class java.lang.Object

Returns:

A description of the filter (ending with a newline).