| Commit message (Collapse) | Author | Age | Files | Lines |
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Carry the order side from the context through risk, the trading
mechanisms, fulfillment and settlement, so users can sell shares as
well as buy them.
The order book now matches priced limit orders from named users, rests
any unfilled remainder, and prevents self-trades. In a binary market
with minting enabled, a buy can also match a bid on the other option
to mint a new YES/NO pair, and a sell can match an ask there to merge
a pair back into the pool. LMSR gains a sell that refunds the cost
difference from the pool.
Add createEvent and openEvent to the catalog. Events start as DRAFT and
only take the market maker's subsidy when they are opened, which fails
if the market maker can't cover it. Add LocalAccountContext to expose
user ledgers.
Tighten the risk checks: reject orders from blocked accounts, on events
that aren't ACTIVE, and at prices outside (0, d). Sells need enough
unreserved shares; buys need enough balance to cover commission and
cash already committed to resting bids.
Settlement now cancels resting orders, pays out on shares still held
rather than shares ever bought, sends order book commission to the
market maker, and returns unused LMSR subsidy. Events also track
per-user cash flow, so the event detail can list participants with
their holdings, fees and P&L next to the order books.
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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 desktop UI needs to create events, trade on both sides of an order
book, and show who is participating in an event, none of which the api
module could express so far.
Add AccountContext for looking up ledger accounts by owner, and give
CatalogContext an openEvent operation plus createEvent, taking either a
CreateEventRequest or its fields spelled out. createEvent defaults to
a "Not implemented" error so existing implementations keep compiling
until they support it.
Let GuessMarketContext.placeOrder take an explicit side, keeping the
old signature as a default method that places a BUY so current callers
are unaffected.
Add OrderBookDTO and BookOrderDTO to describe per-option books with
best bid, best ask and spread, and ParticipantDTO for a user's
position, fees and P&L in an event. Carry the order books and
participants on EventDetailDTO and the market maker's name on
EventSummaryDTO.
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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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lib/openjfx held only the JavaFX API jars, with no Prism/Glass native
libraries backing them. At startup JavaFX tried the d3d then sw
rendering pipelines and both failed to load, since NativeLibLoader had
no native code to find, crashing before any window opened.
Bump the jars to 25.0.4 to match the target JDK and add the matching
native DLLs alongside them. Drop the web/media/swt/swing jars and
their natives (including the 92MB jfxwebkit.dll) since ui-desktop
never references those modules.
Update package.sh to also stage *.dll files when copying runtime libs
into build/dist, and point java.library.path at lib/openjfx in the
generated run-*.bat so the natives are found at launch.
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Relocate the account record out of the api package into
model.ledger, alongside LedgerEntryDTO, and rename it to LedgerDTO
so the ledger DTOs live together under one package.
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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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lib/*/*.jar is auto-globbed onto the build classpath, so this makes
mapstruct available for future DTO<->domain mappers without any build
script changes.
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Vendor jacocoagent.jar/jacococli.jar under lib/jacoco/ (excluded from
the shipped classpath), attach the agent during test runs, and
generate an HTML+XML report into build/coverage after tests pass.
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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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Rename "option"/"but order" wording to "market"/"buy order", add a
blank line before the command prompt, and reprint the prompt text on
readInt() retries instead of leaving the user without context.
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Menu.start() runs command.execute() with no surrounding try/catch, so
an unchecked InvalidPathException from Path.of() on bad user input
crashed the whole console loop. Centralize path parsing in
InputProcessor.readPath(), which now validates and reprompts instead
of throwing, and strips a surrounding pair of quotes so pasted/quoted
paths still work.
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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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and file load command
Wires InputProcessor into the console menu's selection loop and the
load-file command's prompt handling, replacing the unimplemented stub.
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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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Superseded by the service module's GuessMarketContext implementation;
the JAXB model, TradingMechanism interface, and its LMSR/order-book
stubs had no remaining callers.
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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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Introduce MechanismType and rename CommissionChargeType to
CommissionTiming to better describe LMSR vs order-book events.
LocalGuessMarketContext.GetAllEventsAsync is stubbed pending the new
mapping.
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InputProvider/OutputProvider were api-layer types only ever implemented
by the console UI; relocate them there. Drop the unused
GuessMarketEngine/LocalGuessMarketService pair, flesh out LoadResultDTO
with success/failure variants, and make LocalGuessMarketContext.LoadAsync
report real outcomes instead of an empty placeholder.
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PicoContainer wiring
Relocates GuessMarketEngine/GuessMarketContext into market.guess.api so
engine and ui-console depend on a shared contract instead of engine
internals, and makes context loading async (CompletableFuture). Adds
InputProvider/OutputProvider interfaces with console implementations,
wires the console app's Menu through a PicoContainer, and adds the
generated model classes plus vendored picocontainer jar needed to build it.
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Move api, engine, ui-console and ui-desktop out of modules/ up to the
repo root and drop the empty exception project (GuessMarketException now
lives in api).
Vendor gson, jaxb, okhttp, openjfx and tomcat under lib/, and group the
JUnit standalone jar into lib/junit/ alongside them.
Rewrite every .classpath: drop the copy-pasted optional="true" that was
masking real build path errors, point the library entries at ../lib/,
and put the JUnit jar on the test source folders so the placeholder
AppTest classes compile.
ui-desktop: take the JavaFX jars off the modulepath (there is no
module-info.java, so module="true" left the packages unresolvable) and
add a Launcher that calls Application.launch, avoiding the "JavaFX
runtime components are missing" check without VM arguments.
engine: add LocalGuessMarketService and the GuessMarketContext provider
interface, and give GuessMarketException the no-arg and cause
constructors they need.
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