internal

package
v0.8.0 Latest Latest
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 Go to latest Published: Mar 8, 2024 License: Apache-2.0 Imports: 13 Imported by: 0

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Index

Constants

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const AllGenerations int64 = 0
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const CONTEXT_TYPE = "config" + datacontext.OCM_CONTEXT_SUFFIX
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const KIND_CONFIGSET = "config set"
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const KIND_CONFIGTYPE = "config type"
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const OCM_CONFIG_SUFFIX = ".config.ocm.software"

OCM_CONFIG_SUFFIX is the standard suffix used for all configuration types provided by this library.

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const OCM_CONFIG_TYPE_SUFFIX = ".config" + common.OCM_TYPE_GROUP_SUFFIX

OCM_CONFIG_TYPE_SUFFIX is the standard suffix used for configuration types provided by this library.

Variables

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var AllAppliedConfigs = AppliedConfigSelectorFunction(func(*AppliedConfig) bool { return true })
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var AllConfigs = AppliedConfigSelectorFunction(func(*AppliedConfig) bool { return true })
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var DefaultConfigTypeScheme = NewConfigTypeScheme(nil)

DefaultConfigTypeScheme contains all globally known access serializer.

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var DefaultContext = Builder{}.New(datacontext.MODE_SHARED)

DefaultContext is the default context initialized by init functions.

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var Logger = ocmlog.DynamicLogger(Realm)
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var Realm = ocmlog.DefineSubRealm("configuration management", "config")

Functions

func ErrNoContext 

func ErrNoContext(name string) error

func IsErrConfigNotApplicable 

func IsErrConfigNotApplicable(err error) bool

func IsErrNoContext 

func IsErrNoContext(err error) bool

func IsGeneric 

func IsGeneric(cfg Config) bool

func NewStrictConfigTypeScheme added in v0.3.0 

func NewStrictConfigTypeScheme(base ...ConfigTypeScheme) runtime.VersionedTypeRegistry[Config, ConfigType]

Types

type AppliedConfig 

type AppliedConfig struct {
	// contains filtered or unexported fields
}

type AppliedConfigSelector 

type AppliedConfigSelector interface {
	Select(cfg *AppliedConfig) bool
}

func AppliedAndSelector 

func AppliedAndSelector(and ...AppliedConfigSelector) AppliedConfigSelector

func AppliedConfigSelectorFor 

func AppliedConfigSelectorFor(s ConfigSelector) AppliedConfigSelector

func AppliedGenerationSelector 

func AppliedGenerationSelector(gen int64) AppliedConfigSelector

func AppliedVersionSelector 

func AppliedVersionSelector(v string) AppliedConfigSelector

type AppliedConfigSelectorFunction 

type AppliedConfigSelectorFunction func(cfg *AppliedConfig) bool

func (AppliedConfigSelectorFunction) Select 

func (f AppliedConfigSelectorFunction) Select(cfg *AppliedConfig) bool

type AppliedConfigs 

type AppliedConfigs []*AppliedConfig

func (AppliedConfigs) Configs 

func (l AppliedConfigs) Configs() []Config

func (AppliedConfigs) Len 

func (l AppliedConfigs) Len() int

func (AppliedConfigs) Less 

func (l AppliedConfigs) Less(i, j int) bool

func (AppliedConfigs) Swap 

func (l AppliedConfigs) Swap(i, j int)

type Builder 

type Builder struct {
	// contains filtered or unexported fields
}

func (Builder) Bound 

func (b Builder) Bound() (Context, context.Context)

func (Builder) New 

func (b Builder) New(m ...datacontext.BuilderMode) Context

func (Builder) WithConfigTypeScheme 

func (b Builder) WithConfigTypeScheme(scheme ConfigTypeScheme) Builder

func (Builder) WithContext 

func (b Builder) WithContext(ctx context.Context) Builder

func (Builder) WithSharedAttributes 

func (b Builder) WithSharedAttributes(ctx datacontext.AttributesContext) Builder

type Config 

type Config interface {
	runtime.VersionedTypedObject

	ApplyTo(Context, interface{}) error
}

func NewGenericConfig 

func NewGenericConfig(data []byte, unmarshaler runtime.Unmarshaler) (Config, error)

type ConfigApplier added in v0.7.0 

type ConfigApplier interface {
	ApplyConfigTo(Context, cfg, tgt interface{}) error
}

type ConfigApplierFunction added in v0.7.0 

type ConfigApplierFunction func(ctx Context, cfg, tgt interface{}) error

func (ConfigApplierFunction) ApplyConfigTo added in v0.7.0 

func (f ConfigApplierFunction) ApplyConfigTo(ctx Context, cfg, tgt interface{}) error

type ConfigDecoder added in v0.3.0 

type ConfigDecoder = runtime.TypedObjectDecoder[Config]

type ConfigSelector 

type ConfigSelector interface {
	Select(Config) bool
}

type ConfigSelectorFunction 

type ConfigSelectorFunction func(Config) bool

func (ConfigSelectorFunction) Select 

func (f ConfigSelectorFunction) Select(cfg Config) bool

type ConfigSet added in v0.3.0 

type ConfigSet struct {
	Description       string `json:"description,omitempty"`
	ConfigurationList `json:",inline"`
}

type ConfigStore 

type ConfigStore struct {
	// contains filtered or unexported fields
}

func NewConfigStore 

func NewConfigStore() *ConfigStore

func (*ConfigStore) AddSet added in v0.3.0 

func (c *ConfigStore) AddSet(name string, set *ConfigSet)

func (*ConfigStore) Apply 

func (s *ConfigStore) Apply(c Config, desc string)

func (*ConfigStore) Generation 

func (s *ConfigStore) Generation() int64

func (*ConfigStore) GetConfigForName 

func (c *ConfigStore) GetConfigForName(ctx Context, name string, selector AppliedConfigSelector) (int64, AppliedConfigs)

func (*ConfigStore) GetConfigForSelector 

func (c *ConfigStore) GetConfigForSelector(ctx Context, selector AppliedConfigSelector) (int64, AppliedConfigs)

func (*ConfigStore) GetConfigForType 

func (c *ConfigStore) GetConfigForType(ctx Context, typ string, selector AppliedConfigSelector) (int64, AppliedConfigs)

func (*ConfigStore) GetSet added in v0.3.0 

func (c *ConfigStore) GetSet(name string) *ConfigSet

func (*ConfigStore) Reset 

func (s *ConfigStore) Reset() int64

type ConfigType 

type ConfigType interface {
	runtime.VersionedTypedObjectType[Config]
	Usage() string
}

type ConfigTypeProvider added in v0.3.0 

type ConfigTypeProvider = runtime.KnownTypesProvider[Config, ConfigType]

type ConfigTypeScheme 

type ConfigTypeScheme interface {
	runtime.TypeScheme[Config, ConfigType]

	Usage() string
}

func NewConfigTypeScheme 

func NewConfigTypeScheme(defaultDecoder ConfigDecoder, base ...ConfigTypeScheme) ConfigTypeScheme

type ConfigurationList added in v0.3.0 

type ConfigurationList struct {
	Configurations []*GenericConfig `json:"configurations,omitempty"`
}

func (*ConfigurationList) AddConfig added in v0.3.0 

func (c *ConfigurationList) AddConfig(cfg Config) error

func (*ConfigurationList) AddConfigData added in v0.5.0 

func (c *ConfigurationList) AddConfigData(ctx Context, data []byte) error

type Context 

type Context interface {
	datacontext.Context
	ContextProvider

	AttributesContext() datacontext.AttributesContext

	// Info provides the context for nested configuration evaluation
	Info() string
	// WithInfo provides the same context with additional nesting info
	WithInfo(desc string) Context

	ConfigTypes() ConfigTypeScheme

	// GetConfigForData deserialize configuration objects for known
	// configuration types.
	GetConfigForData(data []byte, unmarshaler runtime.Unmarshaler) (Config, error)

	// ApplyData applies the config given by a byte stream to the config store
	// If the config type is not known, a generic config is stored and returned.
	// In this case an unknown error for kind KIND_CONFIGTYPE is returned.
	ApplyData(data []byte, unmarshaler runtime.Unmarshaler, desc string) (Config, error)
	// ApplyConfig applies the config to the config store
	ApplyConfig(spec Config, desc string) error

	GetConfigForType(generation int64, typ string) (int64, []Config)
	GetConfigForName(generation int64, name string) (int64, []Config)
	GetConfig(generation int64, selector ConfigSelector) (int64, []Config)

	AddConfigSet(name string, set *ConfigSet)
	ApplyConfigSet(name string) error

	// Reset all configs applied so far, subsequent calls to ApplyTo will
	// ony see configs allpied after the last reset.
	Reset() int64
	// Generation return the actual config generation.
	// this is a strictly increasing number, regardless of the number
	// of Reset calls.
	Generation() int64
	// ApplyTo applies all configurations applied after the last reset with
	// a generation larger than the given watermark to the specified target.
	// A target may be any object. The applied configuration objects decide
	// on their own whether they are applicable for the given target.
	// The generation of the last applied object is returned to be used as
	// new watermark.
	ApplyTo(gen int64, target interface{}) (int64, error)
}

func DefinedForContext 

func DefinedForContext(ctx context.Context) (Context, bool)

func FromContext added in v0.3.0 

func FromContext(ctx context.Context) Context

FromContext returns the Context to use for context.Context. This is either an explicit context or the default context. The returned context incorporates the given context.

func FromProvider added in v0.3.0 

func FromProvider(p ContextProvider) Context

type ContextProvider 

type ContextProvider interface {
	ConfigContext() Context
}

type Evaluator 

type Evaluator interface {
	Evaluate(ctx Context) (Config, error)
}

type GenericConfig 

type GenericConfig struct {
	runtime.UnstructuredVersionedTypedObject `json:",inline"`
	// contains filtered or unexported fields
}

func ToGenericConfig 

func ToGenericConfig(c Config) (*GenericConfig, error)

func (*GenericConfig) ApplyTo 

func (s *GenericConfig) ApplyTo(ctx Context, target interface{}) error

func (*GenericConfig) Evaluate 

func (s *GenericConfig) Evaluate(ctx Context) (Config, error)

func (*GenericConfig) IsUnknown added in v0.3.0 

func (s *GenericConfig) IsUnknown() bool

type Updater 

type Updater interface {
	// Update replays missing configuration requests
	// applicable for a dedicated type of context or configuration target
	// stored in a configuration context.
	// It should be created for and called from within such a context
	Update() error
	State() (int64, bool)
	GetContext() Context

	Lock()
	Unlock()
	RLock()
	RUnlock()
}

Updater implements the generation based update protocol to update data contexts based on the config requests made to a configuration context.

func NewUpdater 

func NewUpdater(ctx Context, target interface{}) Updater

NewUpdater create a configuration updater for a configuration target based on a dedicated configuration context.

Source Files

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