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noop.go
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noop.go
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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package bootstrapper
import (
"fmt"
"github.com/m3db/m3/src/dbnode/storage/bootstrap"
"github.com/m3db/m3/src/x/context"
)
const (
// NoOpNoneBootstrapperName is the name of the noOpNoneBootstrapper
NoOpNoneBootstrapperName = "noop-none"
// NoOpAllBootstrapperName is the name of the noOpAllBootstrapperProvider
NoOpAllBootstrapperName = "noop-all"
)
// noOpNoneBootstrapperProvider is the no-op bootstrapper provider that doesn't
// know how to bootstrap any time ranges.
type noOpNoneBootstrapperProvider struct{}
// NewNoOpNoneBootstrapperProvider creates a new noOpNoneBootstrapper.
func NewNoOpNoneBootstrapperProvider() bootstrap.BootstrapperProvider {
return noOpNoneBootstrapperProvider{}
}
func (noop noOpNoneBootstrapperProvider) Provide() (bootstrap.Bootstrapper, error) {
return noOpNoneBootstrapper{}, nil
}
func (noop noOpNoneBootstrapperProvider) String() string {
return NoOpNoneBootstrapperName
}
// Compilation of this statement ensures struct implements the interface.
var _ bootstrap.Bootstrapper = noOpNoneBootstrapper{}
type noOpNoneBootstrapper struct{}
func (noop noOpNoneBootstrapper) String() string {
return NoOpNoneBootstrapperName
}
func (noop noOpNoneBootstrapper) Bootstrap(
ctx context.Context,
namespaces bootstrap.Namespaces,
) (bootstrap.NamespaceResults, error) {
results := bootstrap.NewNamespaceResults(namespaces)
for _, elem := range results.Results.Iter() {
id := elem.Key()
namespace := elem.Value()
requested, ok := namespaces.Namespaces.Get(id)
if !ok {
return bootstrap.NamespaceResults{},
fmt.Errorf("missing request namespace: %s", id.String())
}
// Set everything as unfulfilled.
shardTimeRanges := requested.DataRunOptions.ShardTimeRanges
namespace.DataResult = shardTimeRanges.ToUnfulfilledDataResult()
if namespace.Metadata.Options().IndexOptions().Enabled() {
shardTimeRanges := requested.IndexRunOptions.ShardTimeRanges
namespace.IndexResult = shardTimeRanges.ToUnfulfilledIndexResult()
}
// Set value after modifications (map is by value).
results.Results.Set(id, namespace)
}
return results, nil
}
// noOpAllBootstrapperProvider is the no-op bootstrapper provider that pretends
// it can bootstrap any time ranges.
type noOpAllBootstrapperProvider struct{}
// NewNoOpAllBootstrapperProvider creates a new noOpAllBootstrapperProvider.
func NewNoOpAllBootstrapperProvider() bootstrap.BootstrapperProvider {
return noOpAllBootstrapperProvider{}
}
func (noop noOpAllBootstrapperProvider) Provide() (bootstrap.Bootstrapper, error) {
return noOpAllBootstrapper{}, nil
}
func (noop noOpAllBootstrapperProvider) String() string {
return NoOpAllBootstrapperName
}
// Compilation of this statement ensures struct implements the interface.
var _ bootstrap.Bootstrapper = noOpAllBootstrapper{}
type noOpAllBootstrapper struct{}
func (noop noOpAllBootstrapper) String() string {
return NoOpAllBootstrapperName
}
func (noop noOpAllBootstrapper) Bootstrap(
ctx context.Context,
namespaces bootstrap.Namespaces,
) (bootstrap.NamespaceResults, error) {
return bootstrap.NewNamespaceResults(namespaces), nil
}