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/
configloader.go
58 lines (50 loc) · 1.83 KB
/
configloader.go
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// Copyright 2016-2018 Stratumn SAS. 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 validation
import (
"context"
"encoding/json"
"io/ioutil"
"os"
"github.com/stratumn/go-core/monitoring"
"github.com/stratumn/go-core/monitoring/errorcode"
"github.com/stratumn/go-core/types"
"github.com/stratumn/go-core/validation/validators"
)
// LoadFromFile loads the validation rules from a json file.
func LoadFromFile(ctx context.Context, validationCfg *Config) (validators.ProcessesValidators, error) {
span, _ := monitoring.StartSpanProcessing(ctx, "validation/LoadFromFile")
defer span.End()
f, err := os.Open(validationCfg.RulesPath)
if err != nil {
err = types.WrapError(err, errorcode.InvalidArgument, Component, "could not load validation rules")
monitoring.SetSpanStatus(span, err)
return nil, err
}
defer f.Close()
data, err := ioutil.ReadAll(f)
if err != nil {
err = types.WrapError(err, errorcode.InvalidArgument, Component, "could not load validation rules")
monitoring.SetSpanStatus(span, err)
return nil, err
}
var rules ProcessesRules
err = json.Unmarshal(data, &rules)
if err != nil {
err = types.WrapError(err, errorcode.InvalidArgument, Component, "json.Unmarshal")
monitoring.SetSpanStatus(span, err)
return nil, err
}
return rules.Validators(validationCfg.PluginsPath)
}