Alias api types to root

doc.go

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+// Copyright The 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 otel // import "go.opentelemetry.io/otel"

otel.go

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+// Copyright The 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 otel
+
+import (
+	"go.opentelemetry.io/otel/api/global"
+	"go.opentelemetry.io/otel/api/metric"
+	"go.opentelemetry.io/otel/api/propagation"
+	"go.opentelemetry.io/otel/api/trace"
+)
+
+type Tracer = trace.Tracer
+type TraceProvider = trace.Provider
+
+type Meter = metric.Meter
+type MeterProvider = metric.Provider
+
+type Propagators = propagation.Propagators
+
+func GlobalTracer(name string) Tracer {
+	return global.Tracer(name)
+}
+
+// GlobalTraceProvider returns the registered global trace provider.
+func GlobalTraceProvider() TraceProvider {
+	return global.TraceProvider()
+}
+
+// SetGlobalTraceProvider registers `tp` as the global trace provider.
+func SetGlobalTraceProvider(tp TraceProvider) {
+	global.SetTraceProvider(tp)
+}
+
+func GlobalMeter(name string) Meter {
+	return global.Meter(name)
+}
+
+// GlobalMeterProvider returns the registered global meter provider.
+func GlobalMeterProvider() MeterProvider {
+	return global.MeterProvider()
+}
+
+// SetGlobalMeterProvider registers `mp` as the global meter provider.
+func SetGlobalMeterProvider(mp MeterProvider) {
+	global.SetMeterProvider(mp)
+}
+
+// GlobalPropagators returns the registered global propagators instance.
+func GlobalPropagators() Propagators {
+	return global.Propagators()
+}
+
+// SetGlobalPropagators registers `p` as the global propagators instance.
+func SetGlobalPropagators(p Propagators) {
+	global.SetPropagators(p)
+}