/
metadata.go
73 lines (60 loc) · 2.09 KB
/
metadata.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 namespace
import (
"errors"
"fmt"
"github.com/m3db/m3/src/x/checked"
"github.com/m3db/m3/src/x/ident"
)
var (
errIDNotSet = errors.New("namespace ID is not set")
errOptsNotSet = errors.New("namespace options are not set")
)
type metadata struct {
id ident.ID
opts Options
}
// NewMetadata creates a new namespace metadata
func NewMetadata(id ident.ID, opts Options) (Metadata, error) {
if id == nil || id.String() == "" {
return nil, errIDNotSet
}
if opts == nil {
return nil, errOptsNotSet
}
if err := opts.Validate(); err != nil {
return nil, fmt.Errorf("unable to validate options: %v", err)
}
copiedID := checked.NewBytes(append([]byte(nil), id.Bytes()...), nil)
return &metadata{
id: ident.BinaryID(copiedID),
opts: opts,
}, nil
}
func (m *metadata) ID() ident.ID {
return m.id
}
func (m *metadata) Options() Options {
return m.opts
}
func (m *metadata) Equal(value Metadata) bool {
return m.id.Equal(value.ID()) && m.Options().Equal(value.Options())
}