Class: Platform::ApplicationUsageMetric

Inherits:
ActiveRecord::Base
  • Object
show all
Defined in:
app/models/platform/application_usage_metric.rb

Overview

– Copyright © 2010-2012 Michael Berkovich

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ++

– Platform::ApplicationUsageMetric Schema Information

Table name: platform_application_usage_metrics

id                   INTEGER         not null, primary key
type                 varchar(255)    
interval             datetime        
application_id       integer         
event                varchar(255)    
count                integer         
avg_response_time    integer         
error_count          integer         
created_at           datetime        
updated_at           datetime

Indexes

paumai    (application_id, interval)

++

Class Method Summary collapse

Class Method Details

.calculate_metric(app, interval) ⇒ Object 



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# File 'app/models/platform/application_usage_metric.rb', line 59

def self.calculate_metric(app, interval)
  interval_start = interval
  interval_end = interval_start + interval_duration
  
  results = execute_query("select event, count(event) as count, avg(duration) as avg_response_time from platform_application_logs where application_id=#{app.id} and created_at >= '#{interval_start}' and created_at < '#{interval_end}' group by event");
  results.each do |result|
    metric = find_or_create(app, interval, result['event'])
    metric.count = result['count']
    metric.avg_response_time = result['avg_response_time']
    metric.error_count = 0 # need to add ability to count errors
    metric.save
  end
end

.find_or_create(app, interval, event) ⇒ Object 



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# File 'app/models/platform/application_usage_metric.rb', line 50

def self.find_or_create(app, interval, event)
  metric = find(:first, :conditions => ["application_id = ? and interval = ? and event = ?", app.id, interval, event])
  metric || create(:application => app, :interval => interval, :event => event)
end

.interval_duration ⇒ Object 



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# File 'app/models/platform/application_usage_metric.rb', line 55

def self.interval_duration
  15.minutes
end