I suspect syntax got me this time

Hi

I have created a class with a class method. I am trying to call it

from a different class and I get the “uninitialized constant” error.
Could some body help me out.

Class with class method

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and open the template in the editor.

require “log4r/logger”

class XELogger < Log4r::Logger

def XELogger.get(fullname)
begin
return self.superclass.get(fullname)
rescue NameError
return Log4r::Logger.new(fullname , nil , true , false)
end
end

end

Calling class

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and open the template in the editor.

#require “rubygems”
require “webrick”
require “log4r”
require “monitor”
#require “XELogger”
require “rexml/document”

class XmlEngine < WEBrick::HTTPServlet::FileHandler

include MonitorMixin

this is a BigNum

@@serialVersionUID = 1

@xmlParser

@htmlParsers

@hasXmlTemplate
@stcRead
@formatHashtable
@replaceHashtable

@strDriverDefault

@strUrlDefault

@strBaseLocation

@strFormatFile

@fileXmlEngineFormat

@fileBaseLocation

@sessionLanguage

@strReplaceWhat

@strReplaceWith

@isResource = false

@configXMLEngine

These loggers (xmlEngine and reloadXml) should be instantated before

they can

used.

@@log4rXmlEngine = XELogger.get[‘xmlEngine’]

@@log4rReloadXml = XELogger.get(‘reloadXml’)

Constructor

ToDo: Assign this argument to the instance variable

“connectionProvider”
def initialize(connectionProvider)
init
end

ToDo: Needs testing

private
def loadParams
@replaceHashtable = Hash.new # Hash with a string as key and Array
as value

@htmlReplaceVector = Array.new  # Array of ReplaceElement objects
@htmlReplaceVector.push(ReplaceElement.new("&", "&amp;")).
  push(ReplaceElement.new("\"", "&quot;")).
  push(ReplaceElement.new("\n", " ")).
  push(ReplaceElement.new("\r", " ")).
  push(ReplaceElement.new("<", "&lt;")).
  push(ReplaceElement.new(">", "&gt;")).
  push(ReplaceElement.new( "®", "&reg;")).
    push(ReplaceElement.new( "€", "&euro;")).
      push(ReplaceElement.new( "ñ", "&ntilde;")).
      push(ReplaceElement.new( "Ñ", "&Ntilde;"))
@replaceHashtable[:html] = @htmlReplaceVector

@foReplaceVector = Array.new
@foReplacement.push(ReplaceElement.new("&", "&#38;")).
  push(ReplaceElement.new("<", "&#60;")).
  push(ReplaceElement.new(">", "&#62;")).
  push(ReplaceElement.new("\\", "&#92")).
  push(ReplaceElement.new("º", "&#186")).
  push(ReplaceElement.new("ª", "&#170")).
  push(ReplaceElement.new("®", "&#174;")).
  push(ReplaceElement.new("€", "&#8364;")).
  push(ReplaceElement.new("\n", "&#10;"))
@replaceHashtable[:fo] = @foReplaceVector

@htmlPreformattedReplaceVector = Array.new
@htmlPreformattedReplaceVector.push(ReplaceElement.new("&",

“&”)).
push(ReplaceElement.new(""", “”")).
push(ReplaceElement.new("<", “<”)).
push(ReplaceElement.new(">", “>”)).
push(ReplaceElement.new("\n", “
”)).
push(ReplaceElement.new("\r", " ")).
push(ReplaceElement.new(“®”, “®”))
@replaceHashtable[:htmlPreformatted] = @htmlPreformattedVector

@htmlHelpReplaceVector = Array.new
@htmlHelpReplaceVector.push(ReplaceElement.new("\n", "<BR>")).
  push(ReplaceElement("\r", ""))
@replaceHashtable[:htmlHelp] = @htmlHelpReplaceVector

@htmlPreformattedTextareaReplaceVector = Array.new
@htmlPreformattedTextareaReplaceVector.push(ReplaceElement.new("&",

“&”)).
push(ReplaceElement.new(""", “”")).
push(ReplaceElement.new("<", “<”)).
push(ReplaceElement.new(">", “>”)).
push(ReplaceElement.new(“®”, “®”))
@replaceHashtable[:htmlPreformattedTextarea] =
@htmlPreformattedTextareaReplaceVector

@htmlJavascriptReplaceVector = Array.new
@htmlJavascriptReplaceVector.push(ReplaceElement.new("'", "\\'")).
  push(ReplaceElement("\"", "&quot;")).
  push(ReplaceElement("\n", "\\n"))
@replaceHashtable[:htmlJavascript] = @htmlJavascriptReplaceVector

end

Simili to Java Servlet’s lifecycle method init.

public
def init()
@hasXmlTemplate = Hash.new # Vector of XmlTemplates
@stcRead = Stack.new # Stack of Xml Templates not Read
@formatHashtable = Hash.new # Hash table with String as key and
# FormatCouple as value
# ToDo instantiate XmlParser

@xmlParserFormat =

end

This mesage reads a file that defines a XmlTemplate without any

discard
def readXmlTemplate(strXmlTemplateFile)

end

This function reads a file that defines a XmlTemplate with a vector

of

discard

def readXmlTemplate(strXmlTemplateFile, *discard)
# synchronize {put the code to be synchronized here}
end

This function adds the xmltemplate to the list of xmltemplates and

read all

the XmlTemplates.

def readAllXmlTemplates(strXmlTemplateName, strXmlTemplateFile,
*discard)

end

This function add the XmlTemplate to the list of XmlTemplates or

return an

existing XmlTemplate if it was found in the list.

private
def addXmlTemplate(strXmlTemplateName, strXmlTemplateFile, *discard)

end

This function reads the XmlTemplate

def readFile(xmlTemplate)

end

public
def do_GET(request,response)
puts “here in do_get”
end

def do_POST(request,response)
puts “here in do_post”
end

def connect

end

def closeConnections

end

def destroy

end

Will configure log4r from the xml configure file passed

The file object can be just the name of the file if the

file is in the same folder, if otherwise file object

should be a complete path to file’s location.

ToDo: Needs Tesing.

def self.configureLog4r(file)
if file !=nil
Configurator.load_xml_file(file)
else
Configurator.load_xml_file(log4r.xml)
end
end

Courtesy of:

http://rubynugs.blogspot.com/2006/12/creating-java-like-main-method-in-ruby.html

do

if FILE == $0 && ARGV.length < 1

@i

configureLog4r(nil)

@strFile

puts “main”

else if FILE == $0 && ARGV.length > 1

end

end

XmlEngineNP: classes for compatibilizing with the Reports version

def readReportConfiguration(strReportFile)

end

def readReportConfiguration(strReportFile, *discard)

end

# Log4r::Logger’s get method throws a NameError when it cannot find

the

# specified log file. This method will help create a new log file

when

# one doesn’t exist. ToDo: Create a subclass of Logger class and

override

# the Logger class’s get method.

def fetchLogger(_name)

begin

return @newLogFile = Log4r::Logger.get(_name)

rescue NameError

return @newLogFile = Log4r::Logger.new(_name , nil , true ,

false)

end

end

end

Venkat A. wrote:

I have created a class with a class method. I am trying to call it

from a different class and I get the “uninitialized constant” error.

You need to show the exact error message you get, and point out which
line of the source this corresponds to. Posting hundreds of lines of
irrelevant source is not a good idea. Keep removing lines until you have
a 10-line program which still has the problem.

To change this template, choose Tools | Templates

and open the template in the editor.

#require “rubygems”
require “webrick”
require “log4r”
require “monitor”
#require “XELogger”
require “rexml/document”

You commented out ‘require “XELogger”’ above. So if the constant (class)
XELogger is defined in that file, and the error message is saying that
constant XELogger is unknown, why are you surprised?

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