Package org.apache.solr.core

Class TracerConfigurator

java.lang.Object

org.apache.solr.core.TracerConfigurator

All Implemented Interfaces:

NamedListInitializedPlugin

public abstract class TracerConfigurator
extends Object
implements NamedListInitializedPlugin

Produces an OpenTracing Tracer from configuration.

Field Summary

Fields

Modifier and Type	Field	Description
static boolean	TRACE_ID_GEN_ENABLED

Constructor Summary

Constructors

Constructor	Description
TracerConfigurator()

Method Summary

Modifier and Type	Method	Description
protected static String	envNameToSyspropName(String envName)	In OTEL Java SDK there is a convention that the java property name for OTEL_FOO_BAR is otel.foo.bar
protected static String	getConfig(String envName, Map<String,String> env)	Returns system property if found, else returns environment variable, or null if none found.
abstract io.opentracing.Tracer	getTracer()
static io.opentracing.Tracer	loadTracer(SolrResourceLoader loader, PluginInfo info)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.solr.util.plugin.NamedListInitializedPlugin

init

Field Detail

TRACE_ID_GEN_ENABLED

public static final boolean TRACE_ID_GEN_ENABLED

Constructor Detail

TracerConfigurator

public TracerConfigurator()

Method Detail

getTracer

public abstract io.opentracing.Tracer getTracer()

loadTracer

public static io.opentracing.Tracer loadTracer(SolrResourceLoader loader,
                                               PluginInfo info)

getConfig

protected static String getConfig(String envName,
                                  Map<String,String> env)

Returns system property if found, else returns environment variable, or null if none found.

Parameters:

envName - the environment variable to look for

env - current env

Returns:

the resolved value

envNameToSyspropName

protected static String envNameToSyspropName(String envName)

In OTEL Java SDK there is a convention that the java property name for OTEL_FOO_BAR is otel.foo.bar

Parameters:

envName - the environmnet name to convert

Returns:

the corresponding sysprop name