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write.go
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write.go
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// Copyright (c) 2020 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 storage
import (
"github.com/m3db/m3/src/query/models"
"github.com/m3db/m3/src/query/storage/m3/storagemetadata"
"github.com/m3db/m3/src/query/ts"
xerrors "github.com/m3db/m3/src/x/errors"
xtime "github.com/m3db/m3/src/x/time"
)
// Validate will validate the write query options.
func (o WriteQueryOptions) Validate() error {
if err := o.validate(); err != nil {
// NB(r): Always make sure returns invalid params error
// here so that 4XX is returned to client on remote write endpoint.
return xerrors.NewInvalidParamsError(err)
}
return nil
}
func (o WriteQueryOptions) validate() error {
if len(o.Datapoints) == 0 {
return errWriteQueryNoDatapoints
}
if err := o.Unit.Validate(); err != nil {
return err
}
// Note: expensive check last.
if err := o.Tags.Validate(); err != nil {
return err
}
return nil
}
// NewWriteQuery returns a new write query after validating the options.
func NewWriteQuery(opts WriteQueryOptions) (*WriteQuery, error) {
q := &WriteQuery{}
if err := q.Reset(opts); err != nil {
return nil, err
}
return q, nil
}
// Reset resets the write query for reuse.
func (q *WriteQuery) Reset(opts WriteQueryOptions) error {
if err := opts.Validate(); err != nil {
return err
}
q.opts = opts
return nil
}
// Tags returns the tags.
func (q WriteQuery) Tags() models.Tags {
return q.opts.Tags
}
// Datapoints returns the datapoints.
func (q WriteQuery) Datapoints() ts.Datapoints {
return q.opts.Datapoints
}
// Unit returns the unit.
func (q WriteQuery) Unit() xtime.Unit {
return q.opts.Unit
}
// Annotation returns the annotation.
func (q WriteQuery) Annotation() []byte {
return q.opts.Annotation
}
// Attributes returns the attributes.
func (q WriteQuery) Attributes() storagemetadata.Attributes {
return q.opts.Attributes
}
// Validate validates the write query.
func (q *WriteQuery) Validate() error {
return q.opts.Validate()
}
// Options returns the options used to create the write query.
func (q WriteQuery) Options() WriteQueryOptions {
return q.opts
}
func (q *WriteQuery) String() string {
return string(q.opts.Tags.ID())
}