pub struct Renamer { /* private fields */ }Expand description
Maps source topic names to target topic names and enforces loop-prevention rules for active/active replication.
Implementations§
Source§impl Renamer
impl Renamer
Sourcepub fn new(policy: NamingPolicy, source_alias: &str) -> Self
pub fn new(policy: NamingPolicy, source_alias: &str) -> Self
Create a new Renamer for the given policy and source cluster alias.
Sourcepub fn target_name(&self, source_topic: &str) -> String
pub fn target_name(&self, source_topic: &str) -> String
Return the name this topic should have on the target cluster.
NamingPolicy::Default:<source_alias>.<source_topic>NamingPolicy::Identity:<source_topic>(unchanged)
Sourcepub fn is_remote(&self, topic: &str) -> bool
pub fn is_remote(&self, topic: &str) -> bool
Return true if this topic looks like a topic that replication already
produced. This flow should exclude it from its subscription, for loop
prevention.
Under NamingPolicy::Default a topic that contains ., but does not
start with ., counts as remote. This mirrors the “topic contains the
replication separator” heuristic of MirrorMaker 2. The rule is
deliberately simple for Slice 1, and the two-cluster integration test
pins the exact behaviour.
Under NamingPolicy::Identity the loop guard uses the header. See
PROVENANCE_HEADER. This method then always returns false.
Sourcepub fn provenance_alias(&self) -> &str
pub fn provenance_alias(&self) -> &str
The source cluster alias stamped in PROVENANCE_HEADER on produced
records, used for identity-policy loop prevention.
Sourcepub fn policy(&self) -> NamingPolicy
pub fn policy(&self) -> NamingPolicy
The naming policy in effect.
Trait Implementations§
Auto Trait Implementations§
impl Freeze for Renamer
impl RefUnwindSafe for Renamer
impl Send for Renamer
impl Sync for Renamer
impl Unpin for Renamer
impl UnsafeUnpin for Renamer
impl UnwindSafe for Renamer
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