Class: Cash::Local

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

Instance Method Summary collapse

Constructor Details

#initialize(remote_cache) ⇒ Local

Returns a new instance of Local.



5
6
7
 
# File 'lib/cash/local.rb', line 5

def initialize(remote_cache)
  @remote_cache = remote_cache
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method, *args, &block) ⇒ Object 



16
17
18
19
20
 
# File 'lib/cash/local.rb', line 16

def method_missing(method, *args, &block)
  autoload_missing_constants do
    @remote_cache.send(method, *args, &block)
  end
end

Instance Method Details

#autoload_missing_constants ⇒ Object 



22
23
24
25
26
27
28
29
30
31
 
# File 'lib/cash/local.rb', line 22

def autoload_missing_constants
  yield if block_given?
rescue ArgumentError, MemCache::MemCacheError => error
  lazy_load ||= Hash.new { |hash, hash_key| hash[hash_key] = true; false }
  if error.to_s[/undefined class|referred/] && !lazy_load[error.to_s.split.last.constantize]
    retry
  else
    raise error
  end
end

#cache_locally ⇒ Object 



9
10
11
12
13
14
 
# File 'lib/cash/local.rb', line 9

def cache_locally
  @remote_cache = LocalBuffer.new(original_cache = @remote_cache)
  yield if block_given?
ensure
  @remote_cache = original_cache
end