Class: SlidingStats::Stats

Inherits:
Object
  • Object
show all
Defined in:
lib/sliding-stats/stats.rb

Overview

Calculates and maintains stats for a set of requests.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(request, ex_referers, ex_pages) ⇒ Stats 



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# File 'lib/sliding-stats/stats.rb', line 8

def initialize request,ex_referers,ex_pages
  @exclude_referers = ex_referers || []
  @exclude_pages = ex_pages || []

  @referers = {}
  @pages = {}
  @referers_to_pages = {} # Two level

  request.each { |r| self.add(r) }
end

Instance Attribute Details

#pages ⇒ Object (readonly)

Returns the value of attribute pages.



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# File 'lib/sliding-stats/stats.rb', line 7

def pages
  @pages
end

#referers ⇒ Object (readonly)

Returns the value of attribute referers.



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# File 'lib/sliding-stats/stats.rb', line 7

def referers
  @referers
end

#referers_to_pages ⇒ Object (readonly)

Returns the value of attribute referers_to_pages.



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# File 'lib/sliding-stats/stats.rb', line 7

def referers_to_pages
  @referers_to_pages
end

Instance Method Details

#add(r) ⇒ Object

Add a single line of stats data



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# File 'lib/sliding-stats/stats.rb', line 20

def add r
  ref = r["HTTP_REFERER"]
  req = r["REQUEST_URI"]

  ex_ref = @exclude_referers.detect{|pat| ref =~ pat}
  ex_req = @exclude_pages.detect{|pat| req =~ pat}

  if !ex_ref
    @referers[ref] ||= 0
    @referers[ref] += 1
  end

  if !ex_req
    @pages[req] ||= 0
    @pages[req] += 1
  end

  if !ex_ref && !ex_req
    @referers_to_pages[ref] ||= {:total => 0}
    @referers_to_pages[ref][req] ||= 0
    @referers_to_pages[ref][req] += 1
    @referers_to_pages[ref][:total] += 1
  end
end

#sub(r) ⇒ Object 



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# File 'lib/sliding-stats/stats.rb', line 45

def sub r
  ref = r["HTTP_REFERER"]
  req = r["REQUEST_URI"]

  ex_ref = @exclude_referers.detect{|pat| ref =~ pat}
  ex_req = @exclude_pages.detect{|pat| req =~ pat}

  if !ex_ref && @referers[ref]
    @referers[ref] -= 1 
    @referers.delete(ref) if @referers[ref] <= 0
  end

  if !ex_req && @pages[req]
    @pages[req] -= 1
    @pages.delete(req) if @pages[req] <= 0
  end

  if !ex_ref && !ex_req && @referers_to_pages[ref]
    if @referers_to_pages[ref][req]
      @referers_to_pages[ref][req] -= 1 
      @referers_to_pages[ref].delete(req) if @referers_to_pages[ref][req] <= 0
    end
    @referers_to_pages[ref][:total] -= 1
    @referers_to_pages.delete(ref) if @referers_to_pages[ref][:total] <= 0
  end
end