Class: FlowChat::Session::CacheSessionStore

Inherits:
Object
  • Object
show all
Includes:
Instrumentation
Defined in:
lib/flow_chat/session/cache_session_store.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Instrumentation

#instrument, instrument

Constructor Details

#initialize(context, cache = nil) ⇒ CacheSessionStore

Returns a new instance of CacheSessionStore.

Raises:

  • (ArgumentError) 


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# File 'lib/flow_chat/session/cache_session_store.rb', line 9

def initialize(context, cache = nil)
  @context = context
  @cache = cache || FlowChat::Config.cache

  raise ArgumentError, "Cache is required. Set FlowChat::Config.cache or pass a cache instance." unless @cache

  FlowChat.logger.debug { "CacheSessionStore: Initialized cache session store for session #{session_key}" }
  FlowChat.logger.debug { "CacheSessionStore: Cache backend: #{@cache.class.name}" }
end

Instance Attribute Details

#context ⇒ Object (readonly)

Make context available for instrumentation enrichment



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# File 'lib/flow_chat/session/cache_session_store.rb', line 7

def context
  @context
end

Instance Method Details

#clear ⇒ Object Also known as: destroy 



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# File 'lib/flow_chat/session/cache_session_store.rb', line 91

def clear
  return unless @context

  # Use instrumentation for session destruction
  instrument(Events::SESSION_DESTROYED, {
    session_id: @context["session.id"]
  })

  @cache.delete(session_key)
end

#delete(key) ⇒ Object 



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# File 'lib/flow_chat/session/cache_session_store.rb', line 74

def delete(key)
  return unless @context

  FlowChat.logger.debug { "CacheSessionStore: Deleting key '#{key}' from session #{session_key}" }

  data = @cache.read(session_key)
  unless data
    FlowChat.logger.debug { "CacheSessionStore: No session data found for deletion" }
    return
  end

  data.delete(key.to_s)
  @cache.write(session_key, data, expires_in: session_ttl)

  FlowChat.logger.debug { "CacheSessionStore: Key '#{key}' deleted from session" }
end

#exists? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/flow_chat/session/cache_session_store.rb', line 105

def exists?
  exists = @cache.exist?(session_key)
  FlowChat.logger.debug { "CacheSessionStore: Session #{session_key} exists: #{exists}" }
  exists
end

#get(key) ⇒ Object 



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# File 'lib/flow_chat/session/cache_session_store.rb', line 19

def get(key)
  return nil unless @context

  FlowChat.logger.debug { "CacheSessionStore: Getting key '#{key}' from session #{session_key}" }

  data = @cache.read(session_key)
  session_id = @context["session.id"]

  unless data
    # Use instrumentation for cache miss
    instrument(Events::SESSION_CACHE_MISS, {
      session_id: session_id,
      key: key.to_s
    })
    return nil
  end

  value = data[key.to_s]

  # Use instrumentation for cache hit and data get
  instrument(Events::SESSION_CACHE_HIT, {
    session_id: session_id,
    key: key.to_s
  })

  instrument(Events::SESSION_DATA_GET, {
    session_id: session_id,
    key: key.to_s,
    value: value
  })

  value
end

#set(key, value) ⇒ Object 



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# File 'lib/flow_chat/session/cache_session_store.rb', line 53

def set(key, value)
  return unless @context

  FlowChat.logger.debug { "CacheSessionStore: Setting key '#{key}' = #{value.inspect} in session #{session_key}" }

  data = @cache.read(session_key) || {}
  data[key.to_s] = value

  ttl = session_ttl
  @cache.write(session_key, data, expires_in: ttl)

  # Use instrumentation for data set
  instrument(Events::SESSION_DATA_SET, {
    session_id: @context["session.id"],
    key: key.to_s
  })

  FlowChat.logger.debug { "CacheSessionStore: Session data saved with TTL #{ttl.inspect}" }
  value
end