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https://github.com/open-telemetry/opentelemetry-go.git
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98c2c9d96c
* add env support for otel_span configuration Signed-off-by: Cuichen Li <cuichli@cisco.com> * update changelog * update changelog and some logic based on comment * Update CHANGELOG.md Co-authored-by: Anthony Mirabella <a9@aneurysm9.com> * add document about retrieve value from environment variable Signed-off-by: Cuichen Li <cuichli@cisco.com> * remove trailing whitespace Signed-off-by: Cuichen Li <cuichli@cisco.com> * parse environment variable before apply the options * Update CHANGELOG.md Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com> * Update sdk/trace/provider_test.go Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com> * Update CHANGELOG.md Co-authored-by: Anthony Mirabella <a9@aneurysm9.com> Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
85 lines
3.3 KiB
Go
85 lines
3.3 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 trace // import "go.opentelemetry.io/otel/sdk/trace"
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import "go.opentelemetry.io/otel/sdk/internal/env"
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// SpanLimits represents the limits of a span.
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type SpanLimits struct {
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// AttributeCountLimit is the maximum allowed span attribute count.
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AttributeCountLimit int
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// EventCountLimit is the maximum allowed span event count.
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EventCountLimit int
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// LinkCountLimit is the maximum allowed span link count.
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LinkCountLimit int
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// AttributePerEventCountLimit is the maximum allowed attribute per span event count.
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AttributePerEventCountLimit int
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// AttributePerLinkCountLimit is the maximum allowed attribute per span link count.
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AttributePerLinkCountLimit int
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}
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func (sl *SpanLimits) ensureDefault() {
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if sl.EventCountLimit <= 0 {
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sl.EventCountLimit = DefaultEventCountLimit
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}
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if sl.AttributeCountLimit <= 0 {
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sl.AttributeCountLimit = DefaultAttributeCountLimit
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}
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if sl.LinkCountLimit <= 0 {
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sl.LinkCountLimit = DefaultLinkCountLimit
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}
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if sl.AttributePerEventCountLimit <= 0 {
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sl.AttributePerEventCountLimit = DefaultAttributePerEventCountLimit
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}
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if sl.AttributePerLinkCountLimit <= 0 {
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sl.AttributePerLinkCountLimit = DefaultAttributePerLinkCountLimit
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}
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}
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func (sl *SpanLimits) parsePotentialEnvConfigs() {
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sl.AttributeCountLimit = env.IntEnvOr(env.SpanAttributesCountKey, sl.AttributeCountLimit)
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sl.LinkCountLimit = env.IntEnvOr(env.SpanLinkCountKey, sl.LinkCountLimit)
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sl.EventCountLimit = env.IntEnvOr(env.SpanEventCountKey, sl.EventCountLimit)
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}
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const (
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// DefaultAttributeCountLimit is the default maximum allowed span attribute count.
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// If not specified via WithSpanLimits, will try to retrieve the value from
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// environment variable `OTEL_SPAN_ATTRIBUTE_COUNT_LIMIT`.
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// If Invalid value (negative or zero) is provided, the default value 128 will be used.
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DefaultAttributeCountLimit = 128
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// DefaultEventCountLimit is the default maximum allowed span event count.
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// If not specified via WithSpanLimits, will try to retrieve the value from
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// environment variable `OTEL_SPAN_EVENT_COUNT_LIMIT`.
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// If Invalid value (negative or zero) is provided, the default value 128 will be used.
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DefaultEventCountLimit = 128
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// DefaultLinkCountLimit is the default maximum allowed span link count.
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// If the value is not specified via WithSpanLimits, will try to retrieve the value from
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// environment variable `OTEL_SPAN_LINK_COUNT_LIMIT`.
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// If Invalid value (negative or zero) is provided, the default value 128 will be used.
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DefaultLinkCountLimit = 128
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// DefaultAttributePerEventCountLimit is the default maximum allowed attribute per span event count.
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DefaultAttributePerEventCountLimit = 128
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// DefaultAttributePerLinkCountLimit is the default maximum allowed attribute per span link count.
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DefaultAttributePerLinkCountLimit = 128
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)
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