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55 lines
1.5 KiB
55 lines
1.5 KiB
package trust
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import "time"
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// MetricConfig - Configures the weight functions and time intervals for the metric
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type MetricConfig struct {
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// Determines the percentage given to current behavior
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ProportionalWeight float64
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// Determines the percentage given to prior behavior
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IntegralWeight float64
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// The window of time that the trust metric will track events across.
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// This can be set to cover many days without issue
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TrackingWindow time.Duration
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// Each interval should be short for adapability.
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// Less than 30 seconds is too sensitive,
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// and greater than 5 minutes will make the metric numb
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IntervalLength time.Duration
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}
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// DefaultConfig returns a config with values that have been tested and produce desirable results
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func DefaultConfig() MetricConfig {
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return MetricConfig{
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ProportionalWeight: 0.4,
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IntegralWeight: 0.6,
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TrackingWindow: (time.Minute * 60 * 24) * 14, // 14 days.
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IntervalLength: 1 * time.Minute,
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}
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}
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// Ensures that all configuration elements have valid values
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func customConfig(tmc MetricConfig) MetricConfig {
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config := DefaultConfig()
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// Check the config for set values, and setup appropriately
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if tmc.ProportionalWeight > 0 {
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config.ProportionalWeight = tmc.ProportionalWeight
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}
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if tmc.IntegralWeight > 0 {
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config.IntegralWeight = tmc.IntegralWeight
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}
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if tmc.IntervalLength > time.Duration(0) {
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config.IntervalLength = tmc.IntervalLength
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}
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if tmc.TrackingWindow > time.Duration(0) &&
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tmc.TrackingWindow >= config.IntervalLength {
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config.TrackingWindow = tmc.TrackingWindow
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}
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return config
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}
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