Class: BrainzLab::Vault::Cache

Inherits:
Object
  • Object
show all
Defined in:
lib/brainzlab/vault/cache.rb

Instance Method Summary collapse

Constructor Details

#initialize(ttl = 300) ⇒ Cache

Returns a new instance of Cache.



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# File 'lib/brainzlab/vault/cache.rb', line 6

def initialize(ttl = 300)
  @ttl = ttl
  @store = {}
  @mutex = Mutex.new
end

Instance Method Details

#clear! ⇒ Object 



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# File 'lib/brainzlab/vault/cache.rb', line 55

def clear!
  @mutex.synchronize do
    @store.clear
  end
end

#delete(key) ⇒ Object 



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# File 'lib/brainzlab/vault/cache.rb', line 42

def delete(key)
  @mutex.synchronize do
    @store.delete(key)
  end
end

#delete_pattern(pattern) ⇒ Object 



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# File 'lib/brainzlab/vault/cache.rb', line 48

def delete_pattern(pattern)
  @mutex.synchronize do
    regex = Regexp.new(pattern.gsub('*', '.*'))
    @store.delete_if { |k, _| k.match?(regex) }
  end
end

#get(key) ⇒ Object 



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# File 'lib/brainzlab/vault/cache.rb', line 12

def get(key)
  @mutex.synchronize do
    entry = @store[key]
    return nil unless entry
    return nil if expired?(entry)

    entry[:value]
  end
end

#has?(key) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/brainzlab/vault/cache.rb', line 32

def has?(key)
  @mutex.synchronize do
    entry = @store[key]
    return false unless entry
    return false if expired?(entry)

    true
  end
end

#set(key, value) ⇒ Object 



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# File 'lib/brainzlab/vault/cache.rb', line 22

def set(key, value)
  @mutex.synchronize do
    @store[key] = {
      value: value,
      expires_at: Time.now + @ttl
    }
  end
  value
end

#size ⇒ Object 



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# File 'lib/brainzlab/vault/cache.rb', line 61

def size
  @mutex.synchronize do
    cleanup_expired!
    @store.size
  end
end