Class: Cachetastic::Adapters::Memcache

Inherits:
Base show all
Defined in:
lib/gems/cachetastic-2.1.2/lib/cachetastic/adapters/memcache.rb

Overview

This adapter uses Memcache as it’s backing. The configuration for this should look something like this:

my_awesome_cache_options:
  debug: false
  adapter: memcache
  marshall_method: none
  default_expiry: <%= 24.hours %>
  store_options:  
    c_threshold: 10_000
    compression: true
    debug: false
    readonly: false
    urlencode: false
  logging:
    logger_1:
      type: file
      file: log/memcached.log
  servers:
    - 127.0.0.1:11211

Instance Attribute Summary

Attributes inherited from Base

#logger, #name

Instance Method Summary collapse

Methods inherited from Base

#configuration, configuration, #debug?, #initialize

Constructor Details

This class inherits a constructor from Cachetastic::Adapters::Base

Instance Method Details

#delete(key, delay = 0) ⇒ Object 



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# File 'lib/gems/cachetastic-2.1.2/lib/cachetastic/adapters/memcache.rb', line 31

def delete(key, delay = 0)
  self.conn.delete(key, delay)
end

#expire_all ⇒ Object 



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# File 'lib/gems/cachetastic-2.1.2/lib/cachetastic/adapters/memcache.rb', line 39

def expire_all
  self.increment_version(self.name)
end

#get(key, raw = false) ⇒ Object 



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# File 'lib/gems/cachetastic-2.1.2/lib/cachetastic/adapters/memcache.rb', line 35

def get(key, raw = false)
  self.conn.get(key, raw)
end

#inspect ⇒ Object 



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# File 'lib/gems/cachetastic-2.1.2/lib/cachetastic/adapters/memcache.rb', line 43

def inspect
  self.conn.inspect + " <version: #{self.version}> #{self.conn.stats.inspect}"
end

#set(key, value, expiry = 0, raw = false) ⇒ Object 



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# File 'lib/gems/cachetastic-2.1.2/lib/cachetastic/adapters/memcache.rb', line 27

def set(key, value, expiry = 0, raw = false)
  self.conn.set(key, value, expiry, raw)
end

#setup ⇒ Object 



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# File 'lib/gems/cachetastic-2.1.2/lib/cachetastic/adapters/memcache.rb', line 22

def setup
  self.conn = MemCache.new([configuration.servers].flatten, configuration.store_options.to_hash.merge({:namespace => self.namespace}))
  self.version = self.get_version(self.name)
end

#stats ⇒ Object 



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# File 'lib/gems/cachetastic-2.1.2/lib/cachetastic/adapters/memcache.rb', line 57

def stats
  super
  begin
    puts "Memcache stats for all caches:"
    memc = self.conn
    puts Kernel.pp_to_s(memc.stats)
    paths = `sh -c 'echo $PATH'`
    paths = paths.split(':')
    memcached_tool_found = false
    paths.each do |path|
      cmd_path = File.expand_path(File.join(path,'memcached_tool'))
      if File.exists?(cmd_path)
         memcached_tool_found = true
        break
      end
    end
    if memcached_tool_found
      configuration.memcache_servers.each do |server|
        puts `memcached_tool #{server}`
      end
    end
  rescue
  end
  puts ""
end

#valid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/gems/cachetastic-2.1.2/lib/cachetastic/adapters/memcache.rb', line 47

def valid?
  begin
    return (self.conn.active? && self.version == self.get_version(self.name))
  rescue Exception => e
    puts e.message
    puts e.backtrace.join("\n")
    return false
  end
end