Class: Dexter::Collector
- Inherits:
-
Object
- Object
- Dexter::Collector
- Defined in:
- lib/dexter/collector.rb
Instance Method Summary collapse
- #add(query, total_time, calls = 1) ⇒ Object
- #fetch_queries ⇒ Object
-
#initialize(options = {}) ⇒ Collector
constructor
A new instance of Collector.
Constructor Details
#initialize(options = {}) ⇒ Collector
Returns a new instance of Collector.
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# File 'lib/dexter/collector.rb', line 3 def initialize( = {}) @top_queries = {} @new_queries = Set.new @mutex = Mutex.new @min_time = [:min_time] * 60000 # convert minutes to ms @min_calls = [:min_calls] end |
Instance Method Details
#add(query, total_time, calls = 1) ⇒ Object
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# File 'lib/dexter/collector.rb', line 11 def add(query, total_time, calls = 1) fingerprint = begin PgQuery.fingerprint(query) rescue PgQuery::ParseError # do nothing end return unless fingerprint @top_queries[fingerprint] ||= {calls: 0, total_time: 0} @top_queries[fingerprint][:calls] += calls @top_queries[fingerprint][:total_time] += total_time @top_queries[fingerprint][:query] = query @mutex.synchronize do @new_queries << fingerprint end end |
#fetch_queries ⇒ Object
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# File 'lib/dexter/collector.rb', line 30 def fetch_queries new_queries = nil @mutex.synchronize do new_queries = @new_queries.dup @new_queries.clear end queries = [] @top_queries.each do |k, v| if new_queries.include?(k) && v[:total_time] >= @min_time && v[:calls] >= @min_calls query = Query.new(v[:query], k) query.total_time = v[:total_time] query.calls = v[:calls] queries << query end end queries.sort_by(&:fingerprint) end |