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SpanExporterConfiguration.java
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SpanExporterConfiguration.java
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/*
* Copyright The OpenTelemetry Authors
* SPDX-License-Identifier: Apache-2.0
*/
package io.opentelemetry.sdk.autoconfigure;
import static io.opentelemetry.sdk.autoconfigure.OtlpConfigUtil.DATA_TYPE_TRACES;
import static io.opentelemetry.sdk.autoconfigure.OtlpConfigUtil.PROTOCOL_GRPC;
import static io.opentelemetry.sdk.autoconfigure.OtlpConfigUtil.PROTOCOL_HTTP_PROTOBUF;
import static java.util.stream.Collectors.toMap;
import io.opentelemetry.api.metrics.MeterProvider;
import io.opentelemetry.exporter.internal.retry.RetryUtil;
import io.opentelemetry.exporter.jaeger.JaegerGrpcSpanExporter;
import io.opentelemetry.exporter.jaeger.JaegerGrpcSpanExporterBuilder;
import io.opentelemetry.exporter.otlp.http.trace.OtlpHttpSpanExporter;
import io.opentelemetry.exporter.otlp.http.trace.OtlpHttpSpanExporterBuilder;
import io.opentelemetry.exporter.otlp.trace.OtlpGrpcSpanExporter;
import io.opentelemetry.exporter.otlp.trace.OtlpGrpcSpanExporterBuilder;
import io.opentelemetry.exporter.zipkin.ZipkinSpanExporter;
import io.opentelemetry.exporter.zipkin.ZipkinSpanExporterBuilder;
import io.opentelemetry.sdk.autoconfigure.spi.ConfigProperties;
import io.opentelemetry.sdk.autoconfigure.spi.ConfigurationException;
import io.opentelemetry.sdk.autoconfigure.spi.traces.ConfigurableSpanExporterProvider;
import io.opentelemetry.sdk.trace.export.SpanExporter;
import java.time.Duration;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import java.util.function.BiFunction;
import java.util.function.Function;
final class SpanExporterConfiguration {
private static final String EXPORTER_NONE = "none";
private static final Map<String, String> EXPORTER_ARTIFACT_ID_BY_NAME;
static {
EXPORTER_ARTIFACT_ID_BY_NAME = new HashMap<>();
EXPORTER_ARTIFACT_ID_BY_NAME.put("logging", "opentelemetry-exporter-logging");
}
// Visible for testing
static Map<String, SpanExporter> configureSpanExporters(
ConfigProperties config,
ClassLoader serviceClassLoader,
MeterProvider meterProvider,
BiFunction<? super SpanExporter, ConfigProperties, ? extends SpanExporter>
spanExporterCustomizer) {
Set<String> exporterNames = DefaultConfigProperties.getSet(config, "otel.traces.exporter");
if (exporterNames.contains(EXPORTER_NONE)) {
if (exporterNames.size() > 1) {
throw new ConfigurationException(
"otel.traces.exporter contains " + EXPORTER_NONE + " along with other exporters");
}
SpanExporter noop = SpanExporter.composite();
SpanExporter customized = spanExporterCustomizer.apply(noop, config);
if (customized == noop) {
return Collections.emptyMap();
}
return Collections.singletonMap(EXPORTER_NONE, customized);
}
if (exporterNames.isEmpty()) {
exporterNames = Collections.singleton("otlp");
}
NamedSpiManager<SpanExporter> spiExportersManager =
SpiUtil.loadConfigurable(
ConfigurableSpanExporterProvider.class,
ConfigurableSpanExporterProvider::getName,
ConfigurableSpanExporterProvider::createExporter,
config,
serviceClassLoader);
return exporterNames.stream()
.collect(
toMap(
Function.identity(),
exporterName ->
spanExporterCustomizer.apply(
configureExporter(exporterName, config, spiExportersManager, meterProvider),
config)));
}
// Visible for testing
static SpanExporter configureExporter(
String name,
ConfigProperties config,
NamedSpiManager<SpanExporter> spiExportersManager,
MeterProvider meterProvider) {
switch (name) {
case "otlp":
return configureOtlp(config, meterProvider);
case "jaeger":
return configureJaeger(config, meterProvider);
case "zipkin":
return configureZipkin(config);
default:
SpanExporter spiExporter = spiExportersManager.getByName(name);
if (spiExporter == null) {
String artifactId = EXPORTER_ARTIFACT_ID_BY_NAME.get(name);
if (artifactId != null) {
throw new ConfigurationException(
"otel.traces.exporter set to \""
+ name
+ "\" but "
+ artifactId
+ " not found on classpath. Make sure to add it as a dependency.");
}
throw new ConfigurationException("Unrecognized value for otel.traces.exporter: " + name);
}
return spiExporter;
}
}
// Visible for testing
static SpanExporter configureOtlp(ConfigProperties config, MeterProvider meterProvider) {
String protocol = OtlpConfigUtil.getOtlpProtocol(DATA_TYPE_TRACES, config);
if (protocol.equals(PROTOCOL_HTTP_PROTOBUF)) {
ClasspathUtil.checkClassExists(
"io.opentelemetry.exporter.otlp.http.trace.OtlpHttpSpanExporter",
"OTLP HTTP Trace Exporter",
"opentelemetry-exporter-otlp-http-trace");
OtlpHttpSpanExporterBuilder builder = OtlpHttpSpanExporter.builder();
OtlpConfigUtil.configureOtlpExporterBuilder(
DATA_TYPE_TRACES,
config,
builder::setEndpoint,
builder::addHeader,
builder::setCompression,
builder::setTimeout,
builder::setTrustedCertificates,
builder::setClientTls,
retryPolicy -> RetryUtil.setRetryPolicyOnDelegate(builder, retryPolicy));
builder.setMeterProvider(meterProvider);
return builder.build();
} else if (protocol.equals(PROTOCOL_GRPC)) {
ClasspathUtil.checkClassExists(
"io.opentelemetry.exporter.otlp.trace.OtlpGrpcSpanExporter",
"OTLP gRPC Trace Exporter",
"opentelemetry-exporter-otlp");
OtlpGrpcSpanExporterBuilder builder = OtlpGrpcSpanExporter.builder();
OtlpConfigUtil.configureOtlpExporterBuilder(
DATA_TYPE_TRACES,
config,
builder::setEndpoint,
builder::addHeader,
builder::setCompression,
builder::setTimeout,
builder::setTrustedCertificates,
builder::setClientTls,
retryPolicy -> RetryUtil.setRetryPolicyOnDelegate(builder, retryPolicy));
builder.setMeterProvider(meterProvider);
return builder.build();
} else {
throw new ConfigurationException("Unsupported OTLP traces protocol: " + protocol);
}
}
private static SpanExporter configureJaeger(
ConfigProperties config, MeterProvider meterProvider) {
ClasspathUtil.checkClassExists(
"io.opentelemetry.exporter.jaeger.JaegerGrpcSpanExporter",
"Jaeger gRPC Exporter",
"opentelemetry-exporter-jaeger");
JaegerGrpcSpanExporterBuilder builder = JaegerGrpcSpanExporter.builder();
String endpoint = config.getString("otel.exporter.jaeger.endpoint");
if (endpoint != null) {
builder.setEndpoint(endpoint);
}
Duration timeout = config.getDuration("otel.exporter.jaeger.timeout");
if (timeout != null) {
builder.setTimeout(timeout);
}
builder.setMeterProvider(meterProvider);
return builder.build();
}
private static SpanExporter configureZipkin(ConfigProperties config) {
ClasspathUtil.checkClassExists(
"io.opentelemetry.exporter.zipkin.ZipkinSpanExporter",
"Zipkin Exporter",
"opentelemetry-exporter-zipkin");
ZipkinSpanExporterBuilder builder = ZipkinSpanExporter.builder();
String endpoint = config.getString("otel.exporter.zipkin.endpoint");
if (endpoint != null) {
builder.setEndpoint(endpoint);
}
Duration timeout = config.getDuration("otel.exporter.zipkin.timeout");
if (timeout != null) {
builder.setReadTimeout(timeout);
}
return builder.build();
}
private SpanExporterConfiguration() {}
}