Fix stray examples

Author: c24t

README.md

@@ -52,15 +52,15 @@ pip install -e ./ext/opentelemetry-ext-{integration}
 ```python
 from opentelemetry import trace
 from opentelemetry.context import Context
-from opentelemetry.sdk.trace import Tracer
+from opentelemetry.sdk.trace import TracerSource
 from opentelemetry.sdk.trace.export import ConsoleSpanExporter
 from opentelemetry.sdk.trace.export import SimpleExportSpanProcessor
 
-trace.set_preferred_tracer_implementation(lambda T: Tracer())
-tracer = trace.tracer()
-tracer.add_span_processor(
+trace.set_preferred_tracer_source_implementation(lambda T: TracerSource())
+trace.tracer_source().add_span_processor(
     SimpleExportSpanProcessor(ConsoleSpanExporter())
 )
+tracer = trace.tracer_source().get_tracer("myapp")
 with tracer.start_as_current_span('foo'):
     with tracer.start_as_current_span('bar'):
         with tracer.start_as_current_span('baz'):

ext/opentelemetry-ext-jaeger/README.rst

@@ -32,11 +32,11 @@ gRPC is still not supported by this implementation.
 
     from opentelemetry import trace
     from opentelemetry.ext import jaeger
-    from opentelemetry.sdk.trace import Tracer
+    from opentelemetry.sdk.trace import TracerSource
     from opentelemetry.sdk.trace.export import BatchExportSpanProcessor
 
-    trace.set_preferred_tracer_implementation(lambda T: Tracer())
-    tracer = trace.tracer()
+    trace.set_preferred_tracer_source_implementation(lambda T: TracerSource())
+    tracer = trace.tracer_source().get_tracer("myapp")
 
     # create a JaegerSpanExporter
     jaeger_exporter = jaeger.JaegerSpanExporter(

ext/opentelemetry-ext-jaeger/examples/jaeger_exporter_example.py

@@ -2,11 +2,11 @@
 
 from opentelemetry import trace
 from opentelemetry.ext import jaeger
-from opentelemetry.sdk.trace import Tracer
+from opentelemetry.sdk.trace import TracerSource
 from opentelemetry.sdk.trace.export import BatchExportSpanProcessor
 
-trace.set_preferred_tracer_implementation(lambda T: Tracer())
-tracer = trace.tracer()
+trace.set_preferred_tracer_source_implementation(lambda T: TracerSource())
+tracer = trace.tracer_source().get_tracer("myapp")
 
 # create a JaegerSpanExporter
 jaeger_exporter = jaeger.JaegerSpanExporter(
@@ -25,8 +25,8 @@
 # create a BatchExportSpanProcessor and add the exporter to it
 span_processor = BatchExportSpanProcessor(jaeger_exporter)
 
-# add to the tracer
-tracer.add_span_processor(span_processor)
+# add to the tracer factory
+trace.tracer_source().add_span_processor(span_processor)
 
 # create some spans for testing
 with tracer.start_as_current_span("foo") as foo:

ext/opentelemetry-ext-opentracing-shim/src/opentelemetry/ext/opentracing_shim/__init__.py

@@ -29,13 +29,15 @@
     import time
 
     from opentelemetry import trace
-    from opentelemetry.sdk.trace import Tracer
+    from opentelemetry.sdk.trace import TracerSource
     from opentelemetry.ext.opentracing_shim import create_tracer
 
     # Tell OpenTelemetry which Tracer implementation to use.
-    trace.set_preferred_tracer_implementation(lambda T: Tracer())
+    trace.set_preferred_tracer_source_implementation(lambda T: TracerSource())
+
     # Create an OpenTelemetry Tracer.
-    otel_tracer = trace.tracer()
+    otel_tracer = trace.tracer_source().get_tracer("myapp")
+
     # Create an OpenTracing shim.
     shim = create_tracer(otel_tracer)