Class: Rack::MiniProfiler::SnapshotsTransporter

Inherits:
Object
  • Object
show all
Defined in:
lib/mini_profiler/snapshots_transporter.rb

Constant Summary collapse

@@transported_snapshots_count = 
0
@@successful_http_requests_count = 
0
@@failed_http_requests_count = 
0

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(config) ⇒ SnapshotsTransporter

Returns a new instance of SnapshotsTransporter.



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# File 'lib/mini_profiler/snapshots_transporter.rb', line 30

def initialize(config)
  @uri = URI(config.snapshots_transport_destination_url)
  @auth_key = config.snapshots_transport_auth_key
  @gzip_requests = config.snapshots_transport_gzip_requests
  @thread = nil
  @thread_mutex = Mutex.new
  @buffer = []
  @buffer_mutex = Mutex.new
  @max_buffer_size = 100
  @consecutive_failures_count = 0
  @testing = false
end

Instance Attribute Details

#buffer ⇒ Object (readonly)

Returns the value of attribute buffer.



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# File 'lib/mini_profiler/snapshots_transporter.rb', line 27

def buffer
  @buffer
end

#gzip_requests ⇒ Object

Returns the value of attribute gzip_requests.



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# File 'lib/mini_profiler/snapshots_transporter.rb', line 28

def gzip_requests
  @gzip_requests
end

#max_buffer_size ⇒ Object

Returns the value of attribute max_buffer_size.



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# File 'lib/mini_profiler/snapshots_transporter.rb', line 28

def max_buffer_size
  @max_buffer_size
end

Class Method Details

.failed_http_requests_count ⇒ Object 



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# File 'lib/mini_profiler/snapshots_transporter.rb', line 17

def failed_http_requests_count
  @@failed_http_requests_count
end

.successful_http_requests_count ⇒ Object 



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# File 'lib/mini_profiler/snapshots_transporter.rb', line 13

def successful_http_requests_count
  @@successful_http_requests_count
end

.transport(snapshot) ⇒ Object 



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# File 'lib/mini_profiler/snapshots_transporter.rb', line 21

def transport(snapshot)
  @transporter ||= self.new(Rack::MiniProfiler.config)
  @transporter.ship(snapshot)
end

.transported_snapshots_count ⇒ Object 



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# File 'lib/mini_profiler/snapshots_transporter.rb', line 9

def transported_snapshots_count
  @@transported_snapshots_count
end

Instance Method Details

#flush_buffer ⇒ Object 



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# File 'lib/mini_profiler/snapshots_transporter.rb', line 51

def flush_buffer
  buffer_content = @buffer_mutex.synchronize do
    @buffer.dup if @buffer.size > 0
  end
  if buffer_content
    headers = {
      'Content-Type' => 'application/json',
      'Mini-Profiler-Transport-Auth' => @auth_key
    }
    json = { snapshots: buffer_content }.to_json
    body = if @gzip_requests
      require 'zlib'
      io = StringIO.new
      gzip_writer = Zlib::GzipWriter.new(io)
      gzip_writer.write(json)
      gzip_writer.close
      headers['Content-Encoding'] = 'gzip'
      io.string
    else
      json
    end
    request = Net::HTTP::Post.new(@uri, headers)
    request.body = body
    http = Net::HTTP.new(@uri.hostname, @uri.port)
    http.use_ssl = @uri.scheme == 'https'
    res = http.request(request)
    if res.code.to_i == 200
      @@successful_http_requests_count += 1
      @@transported_snapshots_count += buffer_content.size
      @buffer_mutex.synchronize do
        @buffer -= buffer_content
      end
      @consecutive_failures_count = 0
    else
      @@failed_http_requests_count += 1
      @consecutive_failures_count += 1
    end
  end
end

#requests_interval ⇒ Object 



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# File 'lib/mini_profiler/snapshots_transporter.rb', line 91

def requests_interval
  [30 + backoff_delay, 60 * 60].min
end

#ship(snapshot) ⇒ Object 



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# File 'lib/mini_profiler/snapshots_transporter.rb', line 43

def ship(snapshot)
  @buffer_mutex.synchronize do
    @buffer << snapshot
    @buffer.shift if @buffer.size > @max_buffer_size
  end
  @thread_mutex.synchronize { start_thread }
end