513cebe7b7
* Add Virtual Kubelet provider for VIC Initial virtual kubelet provider for VMware VIC. This provider currently handles creating and starting of a pod VM via the VIC portlayer and persona server. Image store handling via the VIC persona server. This provider currently requires the feature/wolfpack branch of VIC. * Added pod stop and delete. Also added node capacity. Added the ability to stop and delete pod VMs via VIC. Also retrieve node capacity information from the VCH. * Cleanup and readme file Some file clean up and added a Readme.md markdown file for the VIC provider. * Cleaned up errors, added function comments, moved operation code 1. Cleaned up error handling. Set standard for creating errors. 2. Added method prototype comments for all interface functions. 3. Moved PodCreator, PodStarter, PodStopper, and PodDeleter to a new folder. * Add mocking code and unit tests for podcache, podcreator, and podstarter Used the unit test framework used in VIC to handle assertions in the provider's unit test. Mocking code generated using OSS project mockery, which is compatible with the testify assertion framework. * Vendored packages for the VIC provider Requires feature/wolfpack branch of VIC and a few specific commit sha of projects used within VIC. * Implementation of POD Stopper and Deleter unit tests (#4) * Updated files for initial PR
89 lines
2.6 KiB
Go
89 lines
2.6 KiB
Go
// Package options provides a way to pass unstructured sets of options to a
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// component expecting a strongly-typed configuration structure.
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package options
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import (
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"fmt"
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"reflect"
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)
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// NoSuchFieldError is the error returned when the generic parameters hold a
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// value for a field absent from the destination structure.
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type NoSuchFieldError struct {
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Field string
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Type string
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}
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func (e NoSuchFieldError) Error() string {
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return fmt.Sprintf("no field %q in type %q", e.Field, e.Type)
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}
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// CannotSetFieldError is the error returned when the generic parameters hold a
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// value for a field that cannot be set in the destination structure.
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type CannotSetFieldError struct {
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Field string
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Type string
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}
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func (e CannotSetFieldError) Error() string {
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return fmt.Sprintf("cannot set field %q of type %q", e.Field, e.Type)
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}
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// TypeMismatchError is the error returned when the type of the generic value
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// for a field mismatches the type of the destination structure.
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type TypeMismatchError struct {
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Field string
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ExpectType string
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ActualType string
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}
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func (e TypeMismatchError) Error() string {
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return fmt.Sprintf("type mismatch, field %s require type %v, actual type %v", e.Field, e.ExpectType, e.ActualType)
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}
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// Generic is an basic type to store arbitrary settings.
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type Generic map[string]interface{}
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// NewGeneric returns a new Generic instance.
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func NewGeneric() Generic {
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return make(Generic)
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}
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// GenerateFromModel takes the generic options, and tries to build a new
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// instance of the model's type by matching keys from the generic options to
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// fields in the model.
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//
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// The return value is of the same type than the model (including a potential
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// pointer qualifier).
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func GenerateFromModel(options Generic, model interface{}) (interface{}, error) {
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modType := reflect.TypeOf(model)
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// If the model is of pointer type, we need to dereference for New.
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resType := reflect.TypeOf(model)
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if modType.Kind() == reflect.Ptr {
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resType = resType.Elem()
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}
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// Populate the result structure with the generic layout content.
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res := reflect.New(resType)
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for name, value := range options {
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field := res.Elem().FieldByName(name)
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if !field.IsValid() {
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return nil, NoSuchFieldError{name, resType.String()}
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}
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if !field.CanSet() {
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return nil, CannotSetFieldError{name, resType.String()}
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}
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if reflect.TypeOf(value) != field.Type() {
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return nil, TypeMismatchError{name, field.Type().String(), reflect.TypeOf(value).String()}
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}
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field.Set(reflect.ValueOf(value))
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}
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// If the model is not of pointer type, return content of the result.
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if modType.Kind() == reflect.Ptr {
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return res.Interface(), nil
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}
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return res.Elem().Interface(), nil
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}
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