Class: SadieSession

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(params) ⇒ SadieSession

Returns a new instance of SadieSession.



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# File 'lib/sadie_session.rb', line 10

def initialize( params )
  
  @expiry_mutex = Mutex.new
  @expire_schedule = MultiRBTree.new
  @expiry_thread = Thread.new do
    _expiry_loop
  end
  
  @refresh_mutex = Mutex.new
  @refresh_schedule = MultiRBTree.new
  @refresh_thread = Thread.new do
    _refresh_loop
  end
  
  @registered_key = {}
  
  unless params.nil?
    if params.is_a? Hash
      if params.has_key?( :primers_dirpath )
        self.primers_dirpath = params[:primers_dirpath]
        puts "initializing session with primer dirpath: #{self.primers_dirpath}"
        _register_primers
      end
    end
  end
  
  @storage_manager_thread_mutex = Mutex.new
  @storage_manager = SadieStorageManager.new
  @storage_manager_thread_mutex.synchronize do
    @storage_manager.register_storage_mechanism :memory, SadieStorageMechanismMemory.new
  end
end

Instance Attribute Details

#primers_dirpath ⇒ Object

Returns the value of attribute primers_dirpath.



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# File 'lib/sadie_session.rb', line 8

def primers_dirpath
  @primers_dirpath
end

Instance Method Details

#get(key) ⇒ Object 



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# File 'lib/sadie_session.rb', line 75

def get( key )
  if @storage_manager.has_key?( key )
    @storage_manager.get( key )
  elsif primer_registered?( key )
    p = Primer.new( :session => self )
    p.decorate( @registered_key[ key ] )
    if p.expire == :on_get
      ret = @storage_manager.get( key )
      @storage_manager.unset( key )
      ret
    elsif ( p.refreshes? )
      _manage_refresh( key, p.refresh_rate )
      @storage_manager.get( key )
    else
      @storage_manager.get( key )
    end
  end
end

#has_key?(key) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/sadie_session.rb', line 43

def has_key?( key )
  @storage_manager_thread_mutex.synchronize do
    @storage_manager.has_key?( key )
  end
end

#primer_registered?(key) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/sadie_session.rb', line 49

def primer_registered?( key )
  @registered_key.has_key? key
end

#set(keys, value, params = nil) ⇒ Object 



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# File 'lib/sadie_session.rb', line 59

def set( keys, value, params=nil )
  expires, mechanism = :never, :memory
  unless params.nil?
    if params.is_a? Hash
      expires = params[:expire] if params.has_key?( :expire )
      mechanism = params[:mechanism] if params.has_key?( :mechanism )
    end
  end
  @storage_manager_thread_mutex.synchronize do
    @storage_manager.set( :keys => Array( keys ),
                          :value => value,
                          :mechanism => mechanism )
  end
  _manage_expiry( keys, expires ) unless expires == :never || expires == :on_get
end

#unset(key) ⇒ Object 



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# File 'lib/sadie_session.rb', line 53

def unset( key )
  @storage_manager_thread_mutex.synchronize do
    @storage_manager.unset( key )
  end
end