106 lines
3.0 KiB
Go
106 lines
3.0 KiB
Go
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package maptracker
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import (
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"encoding/json"
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"errors"
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"time"
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"github.com/ipfs/ipfs-cluster/config"
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)
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const configKey = "maptracker"
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// Default values for this Config.
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const (
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DefaultPinningTimeout = 60 * time.Minute
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DefaultUnpinningTimeout = 5 * time.Minute
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DefaultMaxPinQueueSize = 4096
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)
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// Config allows to initialize a Monitor and customize some parameters.
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type Config struct {
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config.Saver
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// PinningTimeout specifies how long to wait before a pinning state becomes a pin error
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PinningTimeout time.Duration
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// UnpinningTimeout specifies how long to wait before an unpinning state becomes a pin error
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UnpinningTimeout time.Duration
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// MaxPinQueueSize specifies how many pin or unpin requests we can hold in the queue
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// If higher, they will automatically marked with an error.
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MaxPinQueueSize int
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}
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type jsonConfig struct {
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PinningTimeout string `json:"pinning_timeout"`
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UnpinningTimeout string `json:"unpinning_timeout"`
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MaxPinQueueSize int `json:"max_pin_queue_size"`
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}
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// ConfigKey provides a human-friendly identifier for this type of Config.
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func (cfg *Config) ConfigKey() string {
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return configKey
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}
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// Default sets the fields of this Config to sensible values.
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func (cfg *Config) Default() error {
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cfg.PinningTimeout = DefaultPinningTimeout
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cfg.UnpinningTimeout = DefaultUnpinningTimeout
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cfg.MaxPinQueueSize = DefaultMaxPinQueueSize
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return nil
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}
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// Validate checks that the fields of this Config have working values,
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// at least in appearance.
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func (cfg *Config) Validate() error {
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if cfg.PinningTimeout <= 0 {
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return errors.New("maptracker.pinning_timeout too low")
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}
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if cfg.UnpinningTimeout <= 0 {
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return errors.New("maptracker.unpinning_timeout too low")
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}
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if cfg.MaxPinQueueSize <= 0 {
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return errors.New("maptracker.max_pin_queue_size too low")
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}
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return nil
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}
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// LoadJSON sets the fields of this Config to the values defined by the JSON
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// representation of it, as generated by ToJSON.
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func (cfg *Config) LoadJSON(raw []byte) error {
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jcfg := &jsonConfig{}
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err := json.Unmarshal(raw, jcfg)
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if err != nil {
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logger.Error("Error unmarshaling basic monitor config")
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return err
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}
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cfg.Default()
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parseDuration := func(txt string) time.Duration {
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d, _ := time.ParseDuration(txt)
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if txt != "" && d == 0 {
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logger.Warningf("%s is not a valid duration. Default will be used", txt)
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}
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return d
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}
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pinningTimeo := parseDuration(jcfg.PinningTimeout)
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unpinningTimeo := parseDuration(jcfg.UnpinningTimeout)
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config.SetIfNotDefault(pinningTimeo, &cfg.PinningTimeout)
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config.SetIfNotDefault(unpinningTimeo, &cfg.UnpinningTimeout)
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config.SetIfNotDefault(jcfg.MaxPinQueueSize, &cfg.MaxPinQueueSize)
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return cfg.Validate()
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}
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// ToJSON generates a human-friendly JSON representation of this Config.
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func (cfg *Config) ToJSON() ([]byte, error) {
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jcfg := &jsonConfig{}
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jcfg.PinningTimeout = cfg.PinningTimeout.String()
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jcfg.UnpinningTimeout = cfg.UnpinningTimeout.String()
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jcfg.MaxPinQueueSize = cfg.MaxPinQueueSize
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return config.DefaultJSONMarshal(jcfg)
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}
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