Part 5
4 chapters
The Strangler Fig in Practice
The strangler family and the first two extractions (review, notification); ACL/content-based routing; going event-driven.
Chapter 14
The Strangler Fig Pattern
Fowler's pattern, the three steps, the proxy/redirection/shared-database variants, and the Camel strangler proxy used for cutover in this book.
Chapter 15
Extraction 1 — Review Service (the Walking Skeleton)
REST-only, HTTP Basic auth, no sync dependency — proving the full loop: ACL, Quarkus scaffold, equivalence gate pass, flag-gated cutover, decommission.
Chapter 16
Content-Based Routing & the Anti-Corruption Layer
The Camel content-based router, message translator, and content enricher as the translation layer at the seam; the decorating-collaborator pattern.
Chapter 17
Extraction 2 — Notification Service (Going Event-Driven)
Introduces the Kafka backbone, the outbox in the monolith for reliable publication, and content-based event routing — the first taste of eventual consistency.