Class: Dbviewer::Logger

Inherits:
Object
  • Object
show all
Includes:
Singleton
Defined in:
lib/dbviewer/logger.rb

Overview

Logger captures and analyzes SQL queries for debugging and performance monitoring

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Logger

Returns a new instance of Logger.



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# File 'lib/dbviewer/logger.rb', line 6

def initialize
  @request_counter = 0
  @current_request_id = nil
  @last_query_time = nil
  @mutex = Mutex.new

  setup_storage
  subscribe_to_sql_notifications
end

Instance Method Details

#clear ⇒ Object

Clear all stored queries



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# File 'lib/dbviewer/logger.rb', line 17

def clear
  @storage.clear
end

#recent_queries(limit: 100, table_filter: nil, request_id: nil, min_duration: nil) ⇒ Object

Get recent queries, optionally filtered



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# File 'lib/dbviewer/logger.rb', line 22

def recent_queries(limit: 100, table_filter: nil, request_id: nil, min_duration: nil)
  @storage.filter(
    limit: limit,
    table_filter: table_filter,
    request_id: request_id,
    min_duration: min_duration
  )
end

#stats ⇒ Object

Get stats about all queries



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# File 'lib/dbviewer/logger.rb', line 32

def stats
  stats_for_queries(@storage.all)
end

#stats_for_queries(queries) ⇒ Object

Calculate stats for a specific set of queries (can be filtered)



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# File 'lib/dbviewer/logger.rb', line 37

def stats_for_queries(queries)
  QueryAnalyzer.generate_stats(queries)
end