VertxMDCDataAttribute (Quarkus - Vert.x - HTTP - Runtime 3.3.3 API)

java.lang.Object
- io.quarkus.vertx.http.runtime.attribute.VertxMDCDataAttribute

All Implemented Interfaces:

ExchangeAttribute
```
public class VertxMDCDataAttribute
extends Object
implements ExchangeAttribute
```
Provide entries from the MDC section of the RoutingContext. This is especially helpful to put OTel data 'traceId' and 'spanId' into the access log.

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class VertxMDCDataAttribute.Builder

Constructor Summary

Constructors
Constructor Description

VertxMDCDataAttribute(String dataKey)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`String`	`readAttribute(io.vertx.ext.web.RoutingContext exchange)`	Resolve the attribute from the HTTP server exchange.
`void`	`writeAttribute(io.vertx.ext.web.RoutingContext exchange, String newValue)`	Sets a new value for the attribute.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - VertxMDCDataAttribute
```
public VertxMDCDataAttribute(String dataKey)
```
- Method Detail
  - readAttribute
```
public String readAttribute(io.vertx.ext.web.RoutingContext exchange)
```
    Description copied from interface: ExchangeAttribute
    
    Resolve the attribute from the HTTP server exchange. This may return null if the attribute is not present.
    
    Specified by:
    
    readAttribute in interface ExchangeAttribute
    
    Parameters:
    
    exchange - The exchange
    
    Returns:
    
    The attribute
  - writeAttribute
```
public void writeAttribute(io.vertx.ext.web.RoutingContext exchange,
                           String newValue)
                    throws ReadOnlyAttributeException
```
    Description copied from interface: ExchangeAttribute
    
    Sets a new value for the attribute. Not all attributes are writable.
    
    Specified by:
    
    writeAttribute in interface ExchangeAttribute
    
    Parameters:
    
    exchange - The exchange
    
    newValue - The new value for the attribute
    
    Throws:
    
    ReadOnlyAttributeException - when attribute cannot be written