add test bridge for exporters

Author: zeitlinger

testing/agent-exporter/src/main/java/io/opentelemetry/instrumentation/testing/provider/TestBridgeLogRecordExporterComponentProvider.java

@@ -0,0 +1,43 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package io.opentelemetry.instrumentation.testing.provider;
+
+import io.opentelemetry.api.incubator.config.DeclarativeConfigProperties;
+import io.opentelemetry.sdk.autoconfigure.spi.internal.ComponentProvider;
+import io.opentelemetry.sdk.logs.export.LogRecordExporter;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class TestBridgeLogRecordExporterComponentProvider
+    implements ComponentProvider<LogRecordExporter> {
+
+  private static final Logger logger =
+      LoggerFactory.getLogger(TestBridgeLogRecordExporterComponentProvider.class);
+
+  private static LogRecordExporter logRecordExporter;
+
+  @Override
+  public Class<LogRecordExporter> getType() {
+    return LogRecordExporter.class;
+  }
+
+  @Override
+  public String getName() {
+    return "test_bridge";
+  }
+
+  @Override
+  public LogRecordExporter create(DeclarativeConfigProperties config) {
+    return logRecordExporter;
+  }
+
+  public static void setLogRecordExporter(LogRecordExporter logRecordExporter) {
+    logger.info(
+        "Setting TestLogRecordExporterComponentProvider logRecord exporter to {}",
+        logRecordExporter.getClass().getName());
+    TestBridgeLogRecordExporterComponentProvider.logRecordExporter = logRecordExporter;
+  }
+}

testing/agent-exporter/src/main/java/io/opentelemetry/instrumentation/testing/provider/TestBridgeMetricExporterComponentProvider.java

@@ -0,0 +1,43 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package io.opentelemetry.instrumentation.testing.provider;
+
+import io.opentelemetry.api.incubator.config.DeclarativeConfigProperties;
+import io.opentelemetry.sdk.autoconfigure.spi.internal.ComponentProvider;
+import io.opentelemetry.sdk.metrics.export.MetricExporter;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class TestBridgeMetricExporterComponentProvider
+    implements ComponentProvider<MetricExporter> {
+
+  private static final Logger logger =
+      LoggerFactory.getLogger(TestBridgeMetricExporterComponentProvider.class);
+
+  private static MetricExporter metricExporter;
+
+  @Override
+  public Class<MetricExporter> getType() {
+    return MetricExporter.class;
+  }
+
+  @Override
+  public String getName() {
+    return "test_bridge";
+  }
+
+  @Override
+  public MetricExporter create(DeclarativeConfigProperties config) {
+    return metricExporter;
+  }
+
+  public static void setMetricExporter(MetricExporter metricExporter) {
+    logger.info(
+        "Setting TestMetricExporterComponentProvider metric exporter to {}",
+        metricExporter.getClass().getName());
+    TestBridgeMetricExporterComponentProvider.metricExporter = metricExporter;
+  }
+}

testing/agent-exporter/src/main/java/io/opentelemetry/instrumentation/testing/provider/TestBridgeSpanExporterComponentProvider.java

@@ -0,0 +1,43 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package io.opentelemetry.instrumentation.testing.provider;
+
+import io.opentelemetry.api.incubator.config.DeclarativeConfigProperties;
+import io.opentelemetry.sdk.autoconfigure.spi.internal.ComponentProvider;
+import io.opentelemetry.sdk.trace.export.SpanExporter;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+// todo should be inherited from testing-common - not sure why it is not
+public class TestBridgeSpanExporterComponentProvider implements ComponentProvider<SpanExporter> {
+
+  private static final Logger logger =
+      LoggerFactory.getLogger(TestBridgeSpanExporterComponentProvider.class);
+
+  private static SpanExporter spanExporter;
+
+  @Override
+  public Class<SpanExporter> getType() {
+    return SpanExporter.class;
+  }
+
+  @Override
+  public String getName() {
+    return "test_bridge";
+  }
+
+  @Override
+  public SpanExporter create(DeclarativeConfigProperties config) {
+    return spanExporter;
+  }
+
+  public static void setSpanExporter(SpanExporter spanExporter) {
+    logger.info(
+        "Setting TestSpanExporterComponentProvider span exporter to {}",
+        spanExporter.getClass().getName());
+    TestBridgeSpanExporterComponentProvider.spanExporter = spanExporter;
+  }
+}