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Ex-2 documents declare users and their market-maker assignments next
to the events, and the loader has to reject files that are
schema-valid but logically inconsistent, which the v1 loader has no
notion of.
Add XMLLoaderV2, which checks the extension, unmarshals the document,
runs it through XMLValidatorV2 and only then replaces the event and
user repositories, so a rejected file leaves the previous catalog
intact. The validator enforces unique positive event ids, non-empty
names and descriptions, commission within 0..90 with a known type, at
least two distinct options, a positive LMSR b or order-book d with
non-negative initial inventory, unique user names, positive initial
cash, and exactly one existing event per market-maker reference. Let
EventMapperV2 take the resolved market maker's name so it lands on the
domain event.
Give Order a side and the placing user, and Trade the seller, so an
order book can match a buyer against a seller. Keep the previous
constructors, defaulting to a BUY with no user or seller, so existing
LMSR call sites stay unchanged. Route LocalMatchingEngine through the
mechanism's placeOrder with side, user and limit price instead of
buy(), and have cancelOrder take the order to cancel.
Also add an isBlocked query to User and Ledger for accounts that went
negative.
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The ex-2 loader has to reject documents that are schema-valid but
logically broken, and so far only error-2.xml and error-3.xml exercised
that path. Add one fixture per validation rule under
test-data/ex-2/invalid, each a copy of small.xml with a single defect
described in a leading comment: a non-.xml extension, a duplicate event
id, commission outside 0..90 on either side, a duplicate user name,
zero or negative initial cash, a market maker referencing an unknown
event, and an event with no market maker or with two.
Teach LedgerMapper to map individual LedgerEntry records to
LedgerEntryDTO, renaming id to seq and time to at and rendering the
timestamp through InstantOptions.humanize, so callers can show a ledger
history rather than only the account summary.
Make ui-desktop depend on api and service in the build tooling and in
its Eclipse classpath, since the desktop UI now talks to the service
layer directly, and put lib/openjfx on java.library.path for the test
run so tests touching JavaFX can load its native libraries.
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The ex-2 schema describes a nested Guess-Market/GM-events document in
which every event carries its pricing mechanism inline, as either a
GM-LMSR element holding the liquidity parameter b or a GM-order-book
element holding the allow-mint, initial and d attributes, instead of
naming a mechanism and passing its parameters separately.
Add the xjc-generated classes for that schema under catalog.model.v3,
along with the fixtures the loader will be tested against: small.xml
with two events, one per mechanism, multiple.xml with four, and two
negative cases -- error-2.xml, where a market maker is funded with
zero initial cash, and error-3.xml, where a market maker points at
event id 12, which no event declares -- so the cross-reference and
funding checks have something to reject.
The binding covers the GM-events subtree only. The GM-users half of
the document and the per-event id element are not bound yet, so
nothing reads these classes so far.
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Move AccountDTO/MarketDTO/MarketStateDTO/PurchaseReceiptDTO/TradeRowDTO
out of the catch-all api package into model.market (and LedgerDTO into
model.ledger), matching the existing model.event convention so DTOs
live next to the domain they describe rather than in the interface
package. Relocate LedgerMapper from mapper.v2 to infrastructure.adapter
to match the module's established package layout, and update all call
sites and imports accordingly.
Also register the ui-desktop module in the build tooling: add it to
MODULES, add openjfx to the shipped runtime libs, and generalize
package.sh so each executable module (ui-console, ui-desktop) gets its
own Main-Class/Class-Path manifest and run script instead of
special-casing ui-console. Fold long Class-Path manifest lines at 72
bytes per the JAR spec, since adding ui-desktop's dependencies pushed
the line past the limit.
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build.sh now passes -processorpath/-s so MapStruct's generated impl
compiles alongside hand-written sources.
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Groups them with the other event-domain enums instead of the general
api package, and updates all call sites accordingly.
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state I/O
Adds a full pre-load validation pass for GM XML seeds (ids, names,
options, commission, LMSR liquidity), replaces IO.print with
System.out, and surfaces detailed error messages across load/save
commands instead of generic failures.
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- Event ledger now grows on purchase and shrinks on payout, mirroring
the exact amounts moved on the buyer's ledger (it previously had a
Ledger object that nothing ever wrote to).
- Settlement and event-detail views now show the winning market's
display name instead of its raw key; event details are viewable for
settled events too (the picker previously excluded anything not
ACTIVE).
- LMSR events seed their ledger with a SUBSIDY entry for the market
maker's worst-case loss (b * ln(outcomes)), reusing the existing
cost() function rather than recomputing the formula.
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BuyMenuCommand to PlaceOrderMenuCommand
Introduces XMLValidatorV1 and deserializer/adapter classes for events, ledgers,
markets, users, and trading mechanisms. Replaces the monolithic build.bat/run.sh
scripts with per-module tools (_util.sh, build.sh, package.sh, test.sh) that
compile in dependency order.
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Move XML loading infrastructure and models under service/catalog, and
split order execution into a real pipeline: RiskEngine checks the order,
MatchingEngine matches it, FulfillmentContext books the resulting trades,
and SettlementContext resolves winning markets. GuessMarketContext.buyShares
becomes placeOrder(price, quantity), and TradingMechanism.buy now returns
matched trades directly instead of a single TradeExecution.
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Moves Event/Ledger DTOs out of the flat api package into
api/model/{event,ledger}, and moves LocalCatalogContext and order
matching logic into dedicated service/catalog and service/matching
packages, replacing TradingOperation/TradingOperationImpl.
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Split GuessMarketContext into a separate CatalogContext for read-only
event listing, wrap fallible operations in Result<T> instead of throwing,
and wire load/save of events and users through a JSON Wrapper.
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new menu commands
Fill in the previously stubbed cost/pricing math for both trading
mechanisms, and give OrderBookTradingMechanism an actual matching engine
with resting bid/ask books. Fold EventRepository/UserRepository access
into a single MarketContext used by LocalGuessMarketContext, and move the
repository package under infrastructure. Add Buy/EventDetails/LoadState/
SaveState/SettleEvent console commands and wire them into App/Menu.
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TradingMechanism's q/quantity params move from long/long[] to int/int[]
to match the rest of the domain (Trade.quantity, Option counts, etc.
are already int).
Add InputProcessor.readYesNo and readSelect for upcoming menu commands
that need a confirm prompt or a pick-from-list prompt.
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InputProvider/OutputProvider each had one implementation and no test
exercised the seam, so fold Console{Input,Output}Provider straight into
InputProcessor and update Menu/MenuCommand call sites accordingly.
Account and Event both use AtomicInteger for a ledger/trade id counter
that's only ever touched next to a plain, non-thread-safe ArrayList add
in the same method - the atomic bought no real thread-safety. Swapped
both to plain int with ++.
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commands
- Add generic Repository<T> interface; EventRepository/UserRepository extend it
- Implement InMemoryEventRepository/InMemoryUserRepository backed by ArrayList
- Rename XMLLoader to XMLLoaderV1, add LoadValidator and mapper/v2 package
- Add OrderBookTradingMechanism
- Add User(String, int) convenience constructor
- Add ListEventsMenuCommand and ExitMenuCommand, isExit() on MenuCommand
- Menu now sizes selection range by max command index and exits on isExit()
- LoadFileMenuCommand reports validation issues on failed loads
- Untrack test-data/ and config.properties from .gitignore
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Correct Mapper's generic parameter order to <TModel, TDomain> and stub
addEvent/addUser on the Event/User repositories.
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Implement LocalGuessMarketContext.buyShares/loadEvents via a new
TradingOperation and Loader, backed by in-memory repositories. Replace
the ConsoleInputProviderFactory/ConsoleOutputProviderFactory pattern
with picocontainer-injected providers, and drive the menu from a list
of MenuCommand implementations instead of a hardcoded printout.
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Drops AccountType (accounts no longer need to self-identify),
gives Account credit()/debit() that append LedgerEntry rows, adds
Event.recordTrade()/tradeVolumeOf()/getCommission(), and implements
LocalGuessMarketContext.listEvents() via the repository.
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Adds LmsrTradingMechanism, exposes Event/Account getters plus
Event.toEventSummary() for DTO conversion, and implements
EventMapperV1.toDomain() to build Event from the legacy XML model.
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and tests
Removes the placeholder Mapper interface in favor of concrete mapper/provider
implementations, fixes Menu.stop() to no-op instead of throwing.
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Rename repositories package to repository, add MarketAction domain type,
and round Account.initialBalance through BigDecimalOptions.toMoney.
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module
Introduces Account/Event/Trade/User/Option/LedgerEntry domain types plus
EventRepository/UserRepository and TradingMechanism abstractions.
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GuessMarketContext gained a richer surface (loadEvents/listEvents/
buyShares/closeEvent/account/save-restoreState) backed by new
EventDetailDTO, MarketStateDTO, OptionStateDTO and PurchaseReceiptDTO.
The old engine-module provider implemented the previous shape and is
removed; market.guess.service.LocalGuessMarketContext replaces it as a
stub, each method throwing UnsupportedOperationException pending a
real implementation.
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