Module io.helidon.tracing

Package io.helidon.tracing

Class Tag<T>

java.lang.Object

io.helidon.tracing.Tag<T>

Type Parameters:

T - type of the tag

public abstract class Tag<T>
extends Object

Tag abstraction that can be used with TracerBuilder.addTracerTag(String, String).

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	Tag.TagSource<T>	Tag source (a type that can create tags).

Field Summary

Fields

Modifier and Type	Field	Description
static final Tag.TagSource<String>	COMPONENT	Tag marking a component that triggers this span.
static final Tag.TagSource<String>	DB_STATEMENT	Tag marking a Database statement.
static final Tag.TagSource<String>	DB_TYPE	Tag marking a Database type.
static final Tag.TagSource<String>	HTTP_METHOD	Http method used to invoke this request.
static final Tag.TagSource<Integer>	HTTP_STATUS	Status code that was returned.
static final Tag.TagSource<String>	HTTP_URL	URL of the HTTP request.
static final Tag.TagSource<String>	HTTP_VERSION	HTTP version.

Method Summary

Modifier and Type	Method	Description
abstract void	apply(Span span)	Configure this tag on the span provided.
abstract void	apply(Span.Builder<?> spanBuilder)	Configure this tag on the span builder.
static Tag<Boolean>	create(String key, boolean value)	Create a boolean tag.
static Tag<Number>	create(String key, Number value)	Create a numeric tag.
static Tag<String>	create(String key, String value)	Create a string tag.
boolean	equals(Object o)
int	hashCode()
String	key()	Tag name.
String	toString()
T	value()	Tag value.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

COMPONENT

public static final Tag.TagSource<String> COMPONENT

Tag marking a component that triggers this span.

HTTP_METHOD

public static final Tag.TagSource<String> HTTP_METHOD

Http method used to invoke this request.

HTTP_URL

public static final Tag.TagSource<String> HTTP_URL

URL of the HTTP request.

HTTP_VERSION

public static final Tag.TagSource<String> HTTP_VERSION

HTTP version.

HTTP_STATUS

public static final Tag.TagSource<Integer> HTTP_STATUS

Status code that was returned.

DB_TYPE

public static final Tag.TagSource<String> DB_TYPE

Tag marking a Database type.

DB_STATEMENT

public static final Tag.TagSource<String> DB_STATEMENT

Tag marking a Database statement.

Method Details

create

public static Tag<String> create(String key,
 String value)

Create a string tag.

Parameters:

key - tag name

value - tag value

Returns:

string tag

create

public static Tag<Number> create(String key,
 Number value)

Create a numeric tag.

Parameters:

key - tag name

value - tag value

Returns:

numeric tag

create

public static Tag<Boolean> create(String key,
 boolean value)

Create a boolean tag.

Parameters:

key - tag name

value - tag value

Returns:

boolean tag

key

public String key()

Tag name.

Returns:

tag name

value

public T value()

Tag value.

Returns:

tag value

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object

apply

public abstract void apply(Span span)

Configure this tag on the span provided.

Parameters:

span - span to apply the tag on

apply

public abstract void apply(Span.Builder<?> spanBuilder)

Configure this tag on the span builder.

Parameters:

spanBuilder - span builder to apply the tag on