Reference Source

js/metrics/host/metrics_host_state.js

  1. // NPM IMPORTS
  2. import assert from 'assert'
  3.  
  4. // COMMON IMPORTS
  5. import T from 'devapt-core-common/dist/js/utils/types'
  6.  
  7. // SERVER IMPORTS
  8. import MetricsState from '../base/metrics_state'
  9.  
  10.  
  11. /**
  12.  * Contextual constant for this file logs.
  13.  * @private
  14.  * @type {string}
  15.  */
  16. const context = 'server/metrics/host/metrics_host_state'
  17.  
  18.  
  19.  
  20. /**
  21.  * @file Host metrics state class.
  22.  * @author Luc BORIES
  23.  * @license Apache-2.0
  24.  */
  25. export default class MetricHostState extends MetricsState
  26. {
  27.     /**
  28.      * Metrics host state constructor.
  29. 	 * 
  30. 	 * @returns {nothing}
  31.      */
  32. 	constructor()
  33. 	{
  34. 		super('host')
  35. 		
  36. 		/**
  37. 		 * Class test flag.
  38. 		 * @type {boolean}
  39. 		 */
  40. 		this.is_metrics_host_state = true
  41. 	}
  42. 	
  43. 	
  44. 	
  45. 	/**
  46. 	 * Add hostname state values.
  47. 	 * 
  48. 	 * @param {string} arg_hostname - hostname valid string.
  49. 	 * 
  50. 	 * @returns {nothing}
  51. 	 */
  52. 	add_hostname(arg_hostname)
  53. 	{
  54. 		assert( T.isString(arg_hostname) && arg_hostname.length > 0, context + ':add_hostname: bad hostname string')
  55. 		
  56. 		if (arg_hostname in this.values)
  57. 		{
  58. 			return
  59. 		}
  60. 		
  61. 		// CREATE HOSTNAME VALUES
  62. 		this.values[arg_hostname] = {}
  63. 		
  64. 		// LAST SNAPSHOT
  65. 		this.values[arg_hostname].last_metric = undefined
  66. 		
  67. 		
  68. 		// CONTINUOUS AGGREGATION
  69. 		const aggregated_init = {
  70. 			hostname:undefined,
  71. 			
  72. 			count:0,
  73. 			
  74. 			cpus_arch:undefined,
  75. 			cpus_count:undefined,
  76. 			
  77. 			cpus_user_sum:0,
  78. 			cpus_nice_sum:0,
  79. 			cpus_sys_sum:0,
  80. 			cpus_idle_sum:0,
  81. 			cpus_irq_sum:0,
  82. 			
  83. 			cpus_user_mean:undefined,
  84. 			cpus_nice_mean:undefined,
  85. 			cpus_sys_mean:undefined,
  86. 			cpus_idle_mean:undefined,
  87. 			cpus_irq_mean:undefined
  88. 		}
  89. 		this.values[arg_hostname].aggregated = Object.assign({}, aggregated_init)
  90. 	}
  91. }