mirror of
https://github.com/open-telemetry/opentelemetry-go.git
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1eae91b3b0
This is a new transformation type that allows to describe a change where a metric is converted to several other metrics by eliminating an attribute. An example of such change that happened recently is this: https://github.com/open-telemetry/opentelemetry-specification/pull/2617 This PR implements specification change https://github.com/open-telemetry/opentelemetry-specification/pull/2653 This PR creates package v1.1 for the new functionality. The old package v1.0 remains unchanged.
75 lines
2.4 KiB
Go
75 lines
2.4 KiB
Go
// Copyright The OpenTelemetry Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package internal // import "go.opentelemetry.io/otel/schema/internal"
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import (
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"errors"
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"fmt"
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"net/url"
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"strconv"
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"strings"
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"github.com/Masterminds/semver/v3"
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)
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// CheckFileFormatField validates the file format field according to the rules here:
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// https://github.com/open-telemetry/oteps/blob/main/text/0152-telemetry-schemas.md#schema-file-format-number
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func CheckFileFormatField(fileFormat string, supportedFormatMajor, supportedFormatMinor int) error {
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// Verify that the version number in the file is a semver.
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fileFormatParsed, err := semver.StrictNewVersion(fileFormat)
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if err != nil {
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return fmt.Errorf(
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"invalid schema file format version number %q (expected semver): %w",
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fileFormat, err,
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)
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}
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// Check that the major version number in the file is the same as what we expect.
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if fileFormatParsed.Major() != uint64(supportedFormatMajor) {
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return fmt.Errorf(
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"this library cannot parse file formats with major version other than %v",
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supportedFormatMajor,
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)
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}
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// Check that the file minor version number is not greater than
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// what is requested supports.
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if fileFormatParsed.Minor() > uint64(supportedFormatMinor) {
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supportedFormatMajorMinor := strconv.Itoa(supportedFormatMajor) + "." +
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strconv.Itoa(supportedFormatMinor) // 1.0
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return fmt.Errorf(
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"unsupported schema file format minor version number, expected no newer than %v, got %v",
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supportedFormatMajorMinor+".x", fileFormat,
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)
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}
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// Patch, prerelease and metadata version number does not matter, so we don't check it.
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return nil
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}
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// CheckSchemaURL verifies that schemaURL is valid.
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func CheckSchemaURL(schemaURL string) error {
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if strings.TrimSpace(schemaURL) == "" {
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return errors.New("schema_url field is missing")
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}
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if _, err := url.Parse(schemaURL); err != nil {
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return fmt.Errorf("invalid URL specified in schema_url field: %w", err)
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}
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return nil
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}
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