Bug 176450 Support link to CSS Feature(Model Part)
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/core/Module.java
public boolean isFileExist( String fileName, int fileType )
	{
		URL url = findResource( fileName, fileType );
		return url != null;
	}
	/**
	 * Gets a list containing all the include libraries.
	 * 
	 * @return a list containing all the include libraries. Return
	 *         <code>null</code> if there were no include libraries defined.
	 */
	public List getIncludedLibraries( )
	{
		List libs = (List) getLocalProperty( this, LIBRARIES_PROP );
		if ( libs == null )
			return Collections.EMPTY_LIST;
		return Collections.unmodifiableList( libs );
	}
	/**
	 * Gets the default units for the design.
	 * 
	 * @return the default units used in the design
	 */
	public String getUnits( )
	{
		if ( !StringUtil.isBlank( units ) )
			return units;
		return (String) getPropertyDefn( UNITS_PROP ).getDefault( );
	}
	/**