/
resource_to_oc.go
120 lines (109 loc) · 3.64 KB
/
resource_to_oc.go
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// Copyright 2019 OpenTelemetry Authors
//
// 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 internaldata
import (
"fmt"
"strconv"
"time"
occommon "github.com/census-instrumentation/opencensus-proto/gen-go/agent/common/v1"
ocresource "github.com/census-instrumentation/opencensus-proto/gen-go/resource/v1"
"github.com/golang/protobuf/ptypes"
"github.com/open-telemetry/opentelemetry-collector/internal/data"
"github.com/open-telemetry/opentelemetry-collector/translator/conventions"
)
func internalResourceToOC(resource data.Resource) (*occommon.Node, *ocresource.Resource) {
attrs := resource.Attributes()
ocNode := occommon.Node{}
ocResource := ocresource.Resource{}
if attrs.Len() == 0 {
return &ocNode, &ocResource
}
labels := make(map[string]string, attrs.Len())
for i := 0; i < attrs.Len(); i++ {
akv := attrs.GetAttribute(i)
val := attributeValueToString(akv.Value())
switch akv.Key() {
case conventions.OCAttributeResourceType:
ocResource.Type = val
case conventions.AttributeServiceName:
if ocNode.ServiceInfo == nil {
ocNode.ServiceInfo = &occommon.ServiceInfo{}
}
ocNode.ServiceInfo.Name = val
case conventions.OCAttributeProcessStartTime:
t, err := time.Parse(time.RFC3339Nano, val)
if err != nil {
continue
}
ts, err := ptypes.TimestampProto(t)
if err != nil {
continue
}
if ocNode.Identifier == nil {
ocNode.Identifier = &occommon.ProcessIdentifier{}
}
ocNode.Identifier.StartTimestamp = ts
case conventions.AttributeHostHostname:
if ocNode.Identifier == nil {
ocNode.Identifier = &occommon.ProcessIdentifier{}
}
ocNode.Identifier.HostName = val
case conventions.OCAttributeProcessID:
pid, err := strconv.Atoi(val)
if err != nil {
pid = defaultProcessID
}
if ocNode.Identifier == nil {
ocNode.Identifier = &occommon.ProcessIdentifier{}
}
ocNode.Identifier.Pid = uint32(pid)
case conventions.AttributeLibraryVersion:
if ocNode.LibraryInfo == nil {
ocNode.LibraryInfo = &occommon.LibraryInfo{}
}
ocNode.LibraryInfo.CoreLibraryVersion = val
case conventions.OCAttributeExporterVersion:
if ocNode.LibraryInfo == nil {
ocNode.LibraryInfo = &occommon.LibraryInfo{}
}
ocNode.LibraryInfo.ExporterVersion = val
case conventions.AttributeLibraryLanguage:
if code, ok := occommon.LibraryInfo_Language_value[val]; ok {
if ocNode.LibraryInfo == nil {
ocNode.LibraryInfo = &occommon.LibraryInfo{}
}
ocNode.LibraryInfo.Language = occommon.LibraryInfo_Language(code)
}
default:
// Not a special attribute, put it into resource labels
labels[akv.Key()] = val
}
}
ocResource.Labels = labels
return &ocNode, &ocResource
}
func attributeValueToString(attr data.AttributeValue) string {
switch attr.Type() {
case data.AttributeValueSTRING:
return attr.StringVal()
case data.AttributeValueBOOL:
return strconv.FormatBool(attr.BoolVal())
case data.AttributeValueDOUBLE:
return strconv.FormatFloat(attr.DoubleVal(), 'f', -1, 64)
case data.AttributeValueINT:
return strconv.FormatInt(attr.IntVal(), 10)
default:
return fmt.Sprintf("<Unknown OpenTelemetry attribute value type %q>", attr.Type())
}
}