Remove SDK ::getTracer() default name

Instrumentation should use API `TracerProvider` which requires providing a name.

examples/AirGappedTraceDebugging.php

@@ -44,7 +44,7 @@
     new SimpleSpanProcessor($exporter),
     new AlwaysOnSampler()
 );
-$tracer = $tracerProvider->getTracer();
+$tracer = $tracerProvider->getTracer('io.opentelemetry.contrib.php');
 /**
  * Create some tracing data
  */

examples/AlwaysOnJaegerExample.php

@@ -16,7 +16,7 @@
 
 echo 'Starting AlwaysOnJaegerExample';
 
-$tracer = $tracerProvider->getTracer();
+$tracer = $tracerProvider->getTracer('io.opentelemetry.contrib.php');
 
 $rootSpan = $tracer->spanBuilder('root')->startSpan();
 $rootSpan->activate();

examples/AlwaysOnJaegerThriftExample.php

@@ -23,7 +23,7 @@
 
 echo 'Starting JaegerThriftExample';
 
-$tracer = $tracerProvider->getTracer();
+$tracer = $tracerProvider->getTracer('io.opentelemetry.contrib.php');
 
 $rootSpan = $tracer->spanBuilder('root')->startSpan();
 $rootSpan->activate();

examples/AlwaysOnOTLPExample.php

@@ -23,7 +23,7 @@
         $exporter
     )
 );
-$tracer = $tracerProvider->getTracer();
+$tracer = $tracerProvider->getTracer('io.opentelemetry.contrib.php');
 
 $root = $span = $tracer->spanBuilder('root')->startSpan();
 $span->activate();

examples/AlwaysOnOTLPGrpcExample.php

@@ -16,7 +16,7 @@
         $exporter
     )
 );
-$tracer = $tracerProvider->getTracer();
+$tracer = $tracerProvider->getTracer('io.opentelemetry.contrib.php');
 
 $root = $span = $tracer->spanBuilder('root')->startSpan();
 $span->activate();

examples/AlwaysOnZipkinExample.php

@@ -21,7 +21,7 @@
         $zipkinExporter
     )
 );
-$tracer = $tracerProvider->getTracer();
+$tracer = $tracerProvider->getTracer('io.opentelemetry.contrib.php');
 
 echo 'Starting AlwaysOnZipkinExample';
 

examples/BatchExporting.php

@@ -21,7 +21,7 @@
     )
 );
 
-$tracer = $tracerProvider->getTracer();
+$tracer = $tracerProvider->getTracer('io.opentelemetry.contrib.php');
 
 $rootSpan = $tracer->spanBuilder('root')->startSpan();
 $scope = $rootSpan->activate();

examples/ConcurrentSpans.php

@@ -19,7 +19,7 @@
     )
 );
 
-$tracer = $tracerProvider->getTracer();
+$tracer = $tracerProvider->getTracer('io.opentelemetry.contrib.php');
 
 $rootSpan = $tracer->spanBuilder('root')->startSpan();
 $scope = $rootSpan->activate();

examples/ConfigurationFromEnvironment.php

@@ -19,7 +19,7 @@
 
 $tracerProvider = (new TracerProviderFactory('example'))->create();
 
-$tracer = $tracerProvider->getTracer();
+$tracer = $tracerProvider->getTracer('io.opentelemetry.contrib.php');
 
 echo 'Starting Tracer' . PHP_EOL;
 

examples/CreatingANewTraceInTheSameProcess.php

@@ -12,7 +12,7 @@
     new SimpleSpanProcessor(
         new ConsoleSpanExporter()
     )
-))->getTracer();
+))->getTracer('io.opentelemetry.contrib.php');
 
 // This creates a span and sets it as the current parent (and root) span
 $rootSpan = $tracer->spanBuilder('foo')->startSpan();

examples/GettingStarted.php

@@ -15,7 +15,7 @@
     )
 );
 
-$tracer = $tracerProvider->getTracer();
+$tracer = $tracerProvider->getTracer('io.opentelemetry.contrib.php');
 
 //start a root span
 $rootSpan = $tracer->spanBuilder('root')->startSpan();

examples/LoggingOfSpanData.php

@@ -61,7 +61,7 @@
     new BatchSpanProcessor($decorator),
     new AlwaysOnSampler()
 );
-$tracer = $tracerProvider->getTracer();
+$tracer = $tracerProvider->getTracer('io.opentelemetry.contrib.php');
 /**
  * Create some tracing data
  */

examples/ResourceDetectors.php

@@ -13,7 +13,7 @@
 
 $tracerProvider = (new TracerProviderFactory('example'))->create();
 
-$tracer = $tracerProvider->getTracer();
+$tracer = $tracerProvider->getTracer('io.opentelemetry.contrib.php');
 
 echo 'Starting Tracer' . PHP_EOL;
 

examples/SettingUpLogging.php

@@ -24,6 +24,6 @@
         new OtlpGrpcExporter(), //default endpoint unavailable, so exporting will fail
     )
 );
-$tracer = $tracerProvider->getTracer();
+$tracer = $tracerProvider->getTracer('io.opentelemetry.contrib.php');
 $span = $tracer->spanBuilder('root-span')->startSpan();
 $span->end();

examples/SpanResources.php

@@ -30,7 +30,7 @@
     $resource
 );
 
-$tracer = $tracerProvider->getTracer();
+$tracer = $tracerProvider->getTracer('io.opentelemetry.contrib.php');
 
 $span = $tracer->spanBuilder('root')->startSpan();
 $span->end();

examples/distributed-tracing/src/index.php

@@ -23,7 +23,7 @@
 use Slim\Routing\RouteContext;
 
 //create default tracer from environment variables, now available as TracerProvider::getDefaultTracer
-$tracer = (new TracerProviderFactory('example'))->create()->getTracer();
+$tracer = (new TracerProviderFactory('example'))->create()->getTracer('io.opentelemetry.contrib.php');
 
 $cb = new ContainerBuilder();
 $container = $cb->addDefinitions([

src/SDK/Trace/TracerProvider.php

@@ -20,8 +20,6 @@
 
 final class TracerProvider implements API\TracerProviderInterface
 {
-    public const DEFAULT_TRACER_NAME = 'io.opentelemetry.contrib.php';
-
     /** @var array<int, WeakReference<self>>|null */
     private static ?array $tracerProviders = null;
 
@@ -67,7 +65,7 @@ public function forceFlush(): ?bool
 
     /** @inheritDoc */
     public function getTracer(
-        string $name = self::DEFAULT_TRACER_NAME,
+        string $name,
         ?string $version = null,
         ?string $schemaUrl = null,
         iterable $attributes = []

tests/Benchmark/OtlpBench.php

@@ -46,7 +46,7 @@ public function setUpNoExporter(): void
     {
         $processor = new SimpleSpanProcessor();
         $provider = new TracerProvider($processor, $this->sampler, $this->resource);
-        $this->tracer = $provider->getTracer();
+        $this->tracer = $provider->getTracer('io.opentelemetry.contrib.php');
     }
 
     public function setUpGrpc(): void
@@ -55,7 +55,7 @@ public function setUpGrpc(): void
         $exporter = new GrpcExporter('foo:4317', true, '', '', false, 10, $client);
         $processor = new SimpleSpanProcessor($exporter);
         $provider = new TracerProvider($processor, $this->sampler, $this->resource);
-        $this->tracer = $provider->getTracer();
+        $this->tracer = $provider->getTracer('io.opentelemetry.contrib.php');
     }
 
     /**
@@ -81,7 +81,7 @@ public function setUpGrpcHttp(): void
         $exporter = new HttpExporter($client, $requestFactory, $streamFactory);
         $processor = new SimpleSpanProcessor($exporter);
         $provider = new TracerProvider($processor, $this->sampler, $this->resource);
-        $this->tracer = $provider->getTracer();
+        $this->tracer = $provider->getTracer('io.opentelemetry.contrib.php');
     }
 
     /**

tests/Unit/SDK/Trace/TracerProviderTest.php

@@ -4,10 +4,8 @@
 
 namespace OpenTelemetry\Tests\Unit\SDK\Trace;
 
-use OpenTelemetry\API\Trace as API;
 use OpenTelemetry\API\Trace\NoopTracer;
 use OpenTelemetry\SDK\Trace\SamplerInterface;
-use OpenTelemetry\SDK\Trace\Tracer;
 use OpenTelemetry\SDK\Trace\TracerProvider;
 use PHPUnit\Framework\TestCase;
 use WeakReference;
@@ -33,20 +31,6 @@ public function test_equal_for_same_name_without_version(): void
         $this->assertNotEquals($t1, $t3);
     }
 
-    /**
-     * @covers ::getTracer
-     * @covers ::__construct
-     * @group trace-compliance
-     */
-    public function test_get_tracer_default(): void
-    {
-        $provider = new TracerProvider(null);
-
-        $t1 = $provider->getTracer();
-
-        $this->assertInstanceOf(Tracer::class, $t1);
-    }
-
     /**
      * @covers ::getTracer
      * @covers ::__construct
@@ -80,20 +64,6 @@ public function test_equal_for_same_name_with_schema_and_version(): void
         $this->assertNotEquals($t1, $t3);
     }
 
-    /**
-     * @covers ::getTracer
-     * @group trace-compliance
-     */
-    public function test_get_tracer_with_default_name(): void
-    {
-        $provider = new TracerProvider(null);
-
-        $t1 = $provider->getTracer();
-        $t2 = $provider->getTracer();
-
-        $this->assertSame($t1, $t2);
-    }
-
     /**
      * @covers ::shutdown
      * @group trace-compliance