74 lines
2.1 KiB
Go
74 lines
2.1 KiB
Go
package runner
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import (
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"sync"
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)
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// NomadEnvironmentStorage is an interface for storing Nomad environments.
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type NomadEnvironmentStorage interface {
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// List returns all keys of environments stored in this storage.
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List() []EnvironmentID
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// Add adds an environment to the storage.
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// It overwrites the old environment if one with the same id was already stored.
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Add(environment *NomadEnvironment)
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// Get returns an environment from the storage.
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// Iff the environment does not exist in the store, ok will be false.
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Get(id EnvironmentID) (environment *NomadEnvironment, ok bool)
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// Delete deletes the environment with the passed id from the storage. It does nothing if no environment with the id
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// is present in the storage.
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Delete(id EnvironmentID)
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// Length returns the number of currently stored environments in the storage.
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Length() int
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}
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// localNomadEnvironmentStorage stores NomadEnvironment objects in the local application memory.
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type localNomadEnvironmentStorage struct {
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sync.RWMutex
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environments map[EnvironmentID]*NomadEnvironment
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}
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// NewLocalNomadEnvironmentStorage responds with an empty localNomadEnvironmentStorage.
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// This implementation stores the data thread-safe in the local application memory.
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func NewLocalNomadEnvironmentStorage() *localNomadEnvironmentStorage {
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return &localNomadEnvironmentStorage{
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environments: make(map[EnvironmentID]*NomadEnvironment),
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}
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}
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func (s *localNomadEnvironmentStorage) List() []EnvironmentID {
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keys := make([]EnvironmentID, 0, len(s.environments))
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for k := range s.environments {
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keys = append(keys, k)
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}
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return keys
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}
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func (s *localNomadEnvironmentStorage) Add(environment *NomadEnvironment) {
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s.Lock()
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defer s.Unlock()
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s.environments[environment.ID()] = environment
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}
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func (s *localNomadEnvironmentStorage) Get(id EnvironmentID) (environment *NomadEnvironment, ok bool) {
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s.RLock()
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defer s.RUnlock()
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environment, ok = s.environments[id]
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return
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}
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func (s *localNomadEnvironmentStorage) Delete(id EnvironmentID) {
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s.Lock()
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defer s.Unlock()
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delete(s.environments, id)
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}
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func (s *localNomadEnvironmentStorage) Length() int {
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s.RLock()
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defer s.RUnlock()
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return len(s.environments)
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}
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