/
dsfinder.go
68 lines (61 loc) · 1.81 KB
/
dsfinder.go
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//
// Copyright 2016 Gregory Trubetskoy. All Rights Reserved.
//
// 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 receiver
import (
"time"
"github.com/tgres/tgres/rrd"
"github.com/tgres/tgres/serde"
)
// A DSSpec Finder can find a DSSpec for a name. For previously
// unknown DS names that need to be created on-the-fly this interface
// provides a mechanism for specifying DS/RRA configurations based on
// the name.
type MatchingDSSpecFinder interface {
FindMatchingDSSpec(ident serde.Ident) *rrd.DSSpec
}
// A default "reasonable" spec for those who do not want to think about it.
var DftDSSPec = &rrd.DSSpec{
Step: 10 * time.Second,
Heartbeat: 2 * time.Hour,
RRAs: []rrd.RRASpec{
rrd.RRASpec{Function: rrd.WMEAN,
Step: 10 * time.Second,
Span: 6 * time.Hour,
},
rrd.RRASpec{Function: rrd.WMEAN,
Step: 1 * time.Minute,
Span: 24 * time.Hour,
},
rrd.RRASpec{Function: rrd.WMEAN,
Step: 10 * time.Minute,
Span: 93 * 24 * time.Hour,
},
rrd.RRASpec{Function: rrd.WMEAN,
Step: 24 * time.Hour,
Span: 1825 * 24 * time.Hour,
},
},
}
// A simple DS finder always returns itself as the only DSSpec it
// knows.
type SimpleDSFinder struct {
*rrd.DSSpec
}
func (s *SimpleDSFinder) FindMatchingDSSpec(ident serde.Ident) *rrd.DSSpec {
if ident["name"] == "" {
return nil
}
return s.DSSpec
}