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nomulus/core
Ben McIlwain 192a7e6c4e Implement Expiry Access Period flows and billing (#3131)
This commit implements the second stage (Java ORM mappings and EPP flow
enforcement) of the Expiry Access Period (XAP) launch and opt-in mechanism,
completing the Two-PR deployment split mandated by db/README.md after the
Stage 1 database migrations (PR #3134) are live.

During XAP, a TLD charges a fee for domain registration during a timed period
after deletion. To prevent accidental charges, registrars must explicitly
opt in to participate in XAP registrations.

Specifically, this commit:
- Adds expiryAccessPeriodTransitions (a TimedTransitionProperty of
  ExpiryAccessPeriodMode) to Tld.java and ExpiryAccessPeriodModeTransitionUserType
  for mapping XAP mode schedules to PostgreSQL hstore columns.
- Adds expiryAccessPeriodEnabled to Registrar.java with getter, builder
  setter, and JSON map serialization, and regenerates db-schema.sql.generated.
- Enforces registrar opt-in in DomainCheckFlow: when an unallocated domain is
  in XAP and the querying registrar has not opted in, domain:check returns
  avail="0" with reason "Reserved".
- Enforces registrar opt-in in DomainCreateFlow: when attempting to register
  a domain in XAP without registrar opt-in, throws DomainReservedException
  (EPP error 2304 "Object status prohibits operation").
- Enforces explicit fee acknowledgment during XAP domain creation when the XAP
  fee is non-zero, throwing FeesRequiredDuringExpiryAccessPeriodException in
  DomainFlowUtils if omitted.
- Creates a one-time BillingEvent with Reason.FEE_EXPIRY_ACCESS when a domain
  is created during XAP with a non-zero fee, and adds getXapCost() to
  FeesAndCredits.
- Updates all test TLD YAML configurations and adds comprehensive unit and
  integration tests across DomainCheckFlowTest, DomainCreateFlowTest,
  DomainPricingLogicTest, and RegistrarTest.

TAG=agy
CONV=f2488c74-8b4a-43f1-9c22-d1dddbdbb4e0
BUG=http://b/437398822
2026-07-15 21:25:40 +00:00
..
2026-04-02 21:23:00 +00:00