ptolemy.moml.filter
Class RemoveClasses

java.lang.Object
  ptolemy.moml.filter.RemoveClasses

All Implemented Interfaces:

MoMLFilter

public class RemoveClasses
extends java.lang.Object
implements MoMLFilter

When this class is registered with the MoMLParser.addMoMLFilter() method, it will cause MoMLParser to remove or replace classes.

Note that that in the default, this class has an empty list of classes to be removed or replaced. To add classes to be removed, call put("my.class.to.be.removed", null).

This class is not added to the list of filters in BackwardCompatibility, it must be added by calling {#link ptolemy.moml.MoMLParser.addMoMLFilter(MoMLFilter)

Since:

Ptolemy II 8.0

Version:

$Id: RemoveClasses.java 57044 2010-01-27 22:41:05Z cxh $

Author:

Edward A. Lee, Christopher Hylands

Accepted Rating:

Red (cxh)

Proposed Rating:

Red (cxh)

Field Summary

private static java.util.HashMap

_graphicalClasses Map of actor names a HashMap of graphical classes to their non-graphical counterparts, usually either ptolemy.kernel.util.Attribute or null.

Constructor Summary

RemoveClasses()

Method Summary

static void	clear() Clear the map of graphical classes to be removed.
java.lang.String	filterAttributeValue(NamedObj container, java.lang.String element, java.lang.String attributeName, java.lang.String attributeValue, java.lang.String xmlFile) Filter for graphical classes and return new values if a graphical class is found.
void	filterEndElement(NamedObj container, java.lang.String elementName, java.lang.StringBuffer currentCharData, java.lang.String xmlFile) In this class, do nothing.
void	put(java.lang.String className, java.lang.String replacement) Add a class to be filtered for and its replacement if the class is found.
void	remove(java.lang.String className) Remove a class to be filtered.
java.lang.String	toString() Return a string that describes what the filter does.

Methods inherited from class java.lang.Object

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

Field Detail

_graphicalClasses

private static java.util.HashMap _graphicalClasses

Map of actor names a HashMap of graphical classes to their non-graphical counterparts, usually either ptolemy.kernel.util.Attribute or null.

Constructor Detail

RemoveClasses

public RemoveClasses()

Method Detail

clear

public static void clear()

Clear the map of graphical classes to be removed.

filterAttributeValue

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

Filter for graphical classes and return new values if a graphical class is found. An internal HashMap maps names of graphical entities to new names. The HashMap can also map a graphical entity to null, which means the entity is removed from the model. All class attributeValues that start with "ptolemy.domains.gr" are deemed to be graphical elements and null is always returned. For example, if the attributeValue is "ptolemy.vergil.icon.ValueIcon", or "ptolemy.vergil.basic.NodeControllerFactory" then return "ptolemy.kernel.util.Attribute"; if the attributeValue is "ptolemy.vergil.icon.AttributeValueIcon" or "ptolemy.vergil.icon.BoxedValueIcon" then return null, which will cause the MoMLParser to skip the rest of the element; otherwise return the original value of the attributeValue.

Specified by:

filterAttributeValue in interface MoMLFilter

Parameters:

container - The container for this attribute, ignored in this method.

element - The XML element name.

attributeName - The name of the attribute, ignored in this method.

attributeValue - The value of the attribute.

xmlFile - The file currently being parsed.

Returns:

the filtered attributeValue.

filterEndElement

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

In this class, do nothing.

Specified by:

filterEndElement in interface MoMLFilter

Parameters:

container - The object created by this element.

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 - Not thrown in this base class.

remove

public void remove(java.lang.String className)

Remove a class to be filtered.

Parameters:

className - The name of the class to be filtered out, for example "ptolemy.copernicus.kernel.GeneratorAttribute".

See Also:

put(String, String)

put

public void put(java.lang.String className,
                java.lang.String replacement)

Add a class to be filtered for and its replacement if the class is found. If the replacement is null, then the rest of the attribute is skipped. Note that if you add a class with this method, then you must remove it with remove(String), calling 'new RemoveClasses' will not remove a class that was added with this method.

Parameters:

className - The name of the class to be filtered out, for example "ptolemy.copernicus.kernel.GeneratorAttribute".

replacement - The name of the class to be used if className is found. If this argument is null then the rest of the attribute is skipped.

See Also:

remove(String)

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:

the description of the filter that ends with a newline.