Module io.helidon.lra.coordinator.client

Package io.helidon.lra.coordinator.client

Interface PropagatedHeaders

All Known Implementing Classes:

PropagatedHeaders.NoopPropagatedHeaders, PropagatedHeaders.PrefixedPropagatedHeaders

public interface PropagatedHeaders

Headers propagated between Participant and Coordinator.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static final class	PropagatedHeaders.NoopPropagatedHeaders	Noop headers, always returns same instance of empty map.
static final class	PropagatedHeaders.PrefixedPropagatedHeaders	Propagated headers which can scan for allowed headers with any of the preconfigured prefixes.

Method Summary

Modifier and Type	Method	Description
void	clear()	Clear all headers.
static PropagatedHeaders	create(Set<String> prefixes)	Create new instance, with prefixes for allowed headers.
static PropagatedHeaders	noop()	Create new noop instance, always returns same instance of empty map.
void	scan(Map<String,List<String>> headers)	Scan map of headers for any headers with allowed prefix.
Map<String,List<String>>	toMap()	Get all headers as a map.

Method Details

toMap

Map<String,List<String>> toMap()

Get all headers as a map.

Returns:

map of headers

scan

void scan(Map<String,List<String>> headers)

Scan map of headers for any headers with allowed prefix. Any existing headers with same key is replaced.

Parameters:

headers - map to be scanned

clear

void clear()

Clear all headers.

create

static PropagatedHeaders create(Set<String> prefixes)

Create new instance, with prefixes for allowed headers.

Parameters:

prefixes - list of the allowed header prefixes

Returns:

new instance, ready to scan for allowed headers

noop

static PropagatedHeaders noop()

Create new noop instance, always returns same instance of empty map.

Returns:

noop instance