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kingchenc e595ea8bfe release: bump 0.9.3 -> 0.9.4 (#326 )

Packaging fix for the `0.9.3` data layer.

`0.9.3` published to crates.io, Maven Central, NuGet, npm, and the Go mirror, but
the **Linux Python wheels failed to build**, so `Publish to PyPI` was skipped and
no GitHub Release was attached. Root cause: the `live-binance` data layer links
`native-tls` -> `openssl-sys`, and the `manylinux` / `musllinux` wheel-build
containers do not ship the system OpenSSL headers. The native macOS and Windows
wheels were unaffected (system TLS), which is why CI — running Python natively on
the runners, where OpenSSL is present — stayed green.

### Changes
- **`ci`**: install the OpenSSL headers inside the wheel container via
  maturin-action's `before-script-linux` (`openssl-devel` on `manylinux`,
  `openssl-dev` on `musllinux`) before maturin compiles. No library code changed.
- **`release: bump 0.9.3 -> 0.9.4`**: version-string bump across the manual
  touchpoints + `CHANGELOG` `[0.9.4]`.

`0.9.4` is functionally identical to `0.9.3`; it exists only because the already-
published registries cannot re-release `0.9.3`. PyPI publishes for the first time
starting at `0.9.4` (it skips `0.9.3`).

2026-06-17 21:35:14 +02:00

src/main/java/org/wickra/examples

examples: fix and harmonize the strategy backtests across all languages (#324 )

2026-06-17 17:56:22 +02:00

.gitignore

Add the Java binding over the C ABI hub (Panama/FFM) (#233 )

2026-06-09 20:30:29 +02:00

osv-scanner.toml

chore(supply-chain): suppress jackson false positive in the Maven sub-scans (#287 )

2026-06-12 23:31:21 +02:00

pom.xml

release: bump 0.9.3 -> 0.9.4 (#326 )

2026-06-17 21:35:14 +02:00

README.md

Add the Java binding over the C ABI hub (Panama/FFM) (#233 )

2026-06-09 20:30:29 +02:00

README.md

Wickra examples — Java

Runnable examples for the Wickra Java binding. Each example is a small main class that uses the org.wickra:wickra artifact and resolves the native library automatically (from target/release during local development, or the bundled per-platform library when packaged).

Build the native library and install the binding to your local Maven repo first, then run any example with the exec plugin:

cargo build -p wickra-c --release
mvn -f bindings/java install -DskipTests
mvn -f examples/java compile
mvn -f examples/java exec:exec -Dexec.mainClass=org.wickra.examples.Streaming

(The exec:exec goal forks a JVM with --enable-native-access=ALL-UNNAMED, the flag the FFM API needs.)

Example	What it does	Main class
`streaming`	Feed a synthetic price series through SMA / EMA / RSI / MACD tick by tick.	`org.wickra.examples.Streaming`
`backtest`	Compute a basket of indicators over an OHLCV series and print a summary.	`org.wickra.examples.Backtest`
`multi_timeframe`	Resample a 1-minute series into 5m / 15m and print an indicator per timeframe.	`org.wickra.examples.MultiTimeframe`
`parallel_assets`	SMA(20) batch over a panel of assets, serial vs parallel streams, with speedup.	`org.wickra.examples.ParallelAssets`
`strategy_rsi_mean_reversion`	RSI(14) mean-reversion with a PnL / Sharpe / max-DD summary.	`org.wickra.examples.StrategyRsiMeanReversion`
`strategy_macd_adx`	MACD crossover entries gated by ADX(14) > 20.	`org.wickra.examples.StrategyMacdAdx`
`strategy_bollinger_squeeze`	Bollinger-squeeze breakout with an ATR(14) trailing stop.	`org.wickra.examples.StrategyBollingerSqueeze`
`fetch_btcusdt`	Download real BTCUSDT klines from the Binance REST API into a CSV.	`org.wickra.examples.FetchBtcusdt`
`live_binance`	Stream live Binance klines through EMA(20) over a WebSocket.	`org.wickra.examples.LiveBinance`

fetch_btcusdt and live_binance require network access; the rest run offline on deterministic synthetic data. Shared helpers (synthetic data, CSV loader, equity summary) live in MarketData and Equity.