Package com.fayupable.logged.spring.support

Class TraceDepth

java.lang.Object

com.fayupable.logged.spring.support.TraceDepth

public final class TraceDepth
extends Object

Parses the call-chain depth received from another service (an HTTP header, a Kafka or RabbitMQ message header), shared by every trace carrier so they apply exactly the same rule.

The value comes from outside this process and is only trusted as far as keeping it in a sensible range: anything missing, malformed or negative starts a new chain at depth 0, and anything above 1000 is capped there, so a forged header can neither produce a negative depth nor overflow when a nested call increments it.

This class is used internally by this library's trace carriers. It is public only because they live in different packages; it is not part of the supported API and may change without notice.

Field Summary

Fields

Modifier and Type	Field	Description
static final int	MAX_DEPTH	Highest depth accepted from another service; no real call chain gets close.

Method Summary

Modifier and Type	Method	Description
static int	parse(String raw)

Methods inherited from class java.lang.Object

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

Field Details

MAX_DEPTH

public static final int MAX_DEPTH

Highest depth accepted from another service; no real call chain gets close.

See Also:

• Constant Field Values

Method Details

parse

public static int parse(String raw)

Parameters:

raw - the depth as received, may be null

Returns:

the depth clamped to 0..1000, or 0 when raw is missing or not a whole number