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delete.go
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delete.go
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/*******************************************************************************
* Copyright 2019 VMware Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
* in compliance with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License
* is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
* or implied. See the License for the specific language governing permissions and limitations under
* the License.
*******************************************************************************/
package subscription
import (
"github.com/edgexfoundry/edgex-go/internal/pkg/db"
"github.com/edgexfoundry/edgex-go/internal/support/notifications/errors"
)
// DeleteExecutor handles the deletion of a subscription.
// Returns ErrNSubscriptionNotFound if a subscription could not be found with a matching ID
type DeleteExecutor interface {
Execute() error
}
type deleteSubscriptionByID struct {
db SubscriptionDeleter
did string
}
type deleteSubscriptionBySlug struct {
db SubscriptionDeleter
dslug string
}
func (dnbi deleteSubscriptionByID) Execute() error {
err := dnbi.db.DeleteSubscriptionById(dnbi.did)
if err != nil {
if err == db.ErrNotFound {
err = errors.NewErrSubscriptionNotFound(dnbi.did)
}
return err
}
return nil
}
func (dnbi deleteSubscriptionBySlug) Execute() error {
err := dnbi.db.DeleteSubscriptionBySlug(dnbi.dslug)
if err != nil {
if err == db.ErrNotFound {
err = errors.NewErrSubscriptionNotFound(dnbi.dslug)
}
return err
}
return nil
}
// NewDeleteByIDExecutor creates a new DeleteExecutor which deletes a subscription based on id.
func NewDeleteByIDExecutor(db SubscriptionDeleter, did string) DeleteExecutor {
return deleteSubscriptionByID{
db: db,
did: did,
}
}
// NewDeleteBySlugExecutor creates a new DeleteExecutor which deletes a subscription based on slug.
func NewDeleteBySlugExecutor(db SubscriptionDeleter, dslug string) DeleteExecutor {
return deleteSubscriptionBySlug{
db: db,
dslug: dslug,
}
}