Class: Pho::Etags

Inherits:
Object
  • Object
show all
Defined in:
lib/pho/etags.rb

Overview

Simple mechanism for managing etags

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(file = nil) ⇒ Etags

Returns a new instance of Etags.



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# File 'lib/pho/etags.rb', line 11

def initialize(file = nil)
  @file = file
  @saved = true
  @tags = Hash.new
  if @file != nil
      @tags = YAML::load(@file)[0]
  end
end

Instance Attribute Details

#file ⇒ Object (readonly)

Returns the value of attribute file.



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# File 'lib/pho/etags.rb', line 9

def file
  @file
end

#saved ⇒ Object (readonly)

Returns the value of attribute saved.



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# File 'lib/pho/etags.rb', line 9

def saved
  @saved
end

Instance Method Details

#add(uri, tag) ⇒ Object 



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# File 'lib/pho/etags.rb', line 34

def add(uri, tag)     
  if (uri != nil && tag != nil)
    @tags[uri] = tag
    @saved = false        
  end
end

#add_from_response(uri, response) ⇒ Object 



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# File 'lib/pho/etags.rb', line 41

def add_from_response(uri, response)
  add(uri, response.header["ETag"][0])
end

#get(uri) ⇒ Object 



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# File 'lib/pho/etags.rb', line 45

def get(uri)
  return @tags[uri]
end

#has_tag?(uri) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/pho/etags.rb', line 49

def has_tag?(uri)
  return @tags.has_key?(uri)
end

#save(other = nil) ⇒ Object 



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# File 'lib/pho/etags.rb', line 20

def save(other=nil)

  if (other != nil)
    other.write( @tags.to_yaml() )
    return
  else
    if (!saved && @file != nil )
        @file.write( @tags.to_yaml() )
        @file.close           
    end        
  end
                    
end