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implimented events with stocks and mail app
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114 changes: 87 additions & 27 deletions
114
src/main/java/edu/ntnu/idi/idatt2003/gruppe42/Controller/StockController.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,58 +1,118 @@ | ||
| package edu.ntnu.idi.idatt2003.gruppe42.Controller; | ||
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| import edu.ntnu.idi.idatt2003.gruppe42.Controller.AppControllers.MailController; | ||
| import edu.ntnu.idi.idatt2003.gruppe42.Model.EventBus; | ||
| import edu.ntnu.idi.idatt2003.gruppe42.Model.Stock; | ||
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| import edu.ntnu.idi.idatt2003.gruppe42.Model.StockEvent; | ||
| import java.math.BigDecimal; | ||
| import java.math.RoundingMode; | ||
| import java.util.ArrayList; | ||
| import java.util.List; | ||
| import java.util.Random; | ||
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| public class StockController { | ||
| private Stock stock; | ||
| private int timeframe; | ||
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| private static final int STEEP_THRESHOLD = 46; | ||
| private static final int EVENT_MAGNITUDE = 90; | ||
| private static final double NOISE_RANGE = 8.0; | ||
| private static final int MIN_TREND_FRAMES = 10; | ||
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| private final Stock stock; | ||
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| private int trendTimeframe; | ||
| private int trendFramesRemaining; | ||
| private int trend; | ||
| private int delay; | ||
| private int time; | ||
| private Random random; | ||
| private double timeMultiplier; | ||
| private BigDecimal price; | ||
| private BigDecimal startPrice; | ||
| private BigDecimal offset; | ||
| private BigDecimal priceChange; | ||
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| private BigDecimal pendingShock; | ||
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| public StockController(Stock stock) { | ||
| public StockController(final Stock stock) { | ||
| this.stock = stock; | ||
| time = 0; | ||
| random = new Random(); | ||
| timeMultiplier = (random.nextDouble() + 0.1) / 20; | ||
| startPrice = stock.getSalesPrice(); | ||
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| price = startPrice; | ||
| priceChange = new BigDecimal(random.nextInt(startPrice.intValue()/2)); | ||
| this.time = 0; | ||
| this.delay = 0; | ||
| this.random = new Random(); | ||
| this.startPrice = stock.getSalesPrice(); | ||
| this.price = startPrice; | ||
| nextTrend(); | ||
| } | ||
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| public BigDecimal updatePrice() { | ||
| BigDecimal marketFluctuation = BigDecimal.valueOf(Math.sin(timeMultiplier * time)) | ||
| .multiply(priceChange) | ||
| .add(startPrice); | ||
| BigDecimal noise = BigDecimal.valueOf((random.nextDouble() * 2 - 1) * NOISE_RANGE); | ||
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| if (isDelay()) { | ||
| delay--; | ||
| if (delay == 0 && pendingShock != null) { | ||
| price = price.add(pendingShock); | ||
| pendingShock = null; | ||
| } | ||
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| if (price.compareTo(BigDecimal.ZERO) > 0) { | ||
| price = price.add(noise); | ||
| } | ||
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| if (price.compareTo(BigDecimal.ZERO) < 0) { | ||
| price = BigDecimal.ZERO; | ||
| } | ||
| return price.setScale(2, RoundingMode.HALF_UP); | ||
| } | ||
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| if (price.compareTo(BigDecimal.ZERO) > 0 || (isTrajectorySteep() && trend > 0)) { | ||
| BigDecimal trendStep = BigDecimal.valueOf(trend) | ||
| .divide(BigDecimal.valueOf(trendTimeframe), 6, RoundingMode.HALF_UP); | ||
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| double speculatorFluctuation = random.nextDouble(2) - 1; | ||
| offset = BigDecimal.valueOf(speculatorFluctuation*30); | ||
| price = price.add(trendStep).add(noise); | ||
| } | ||
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| time += 1; | ||
| price = marketFluctuation; | ||
| if (price.compareTo(BigDecimal.ZERO) < 0) { | ||
| price = BigDecimal.ZERO; | ||
| } | ||
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| return price.add(offset); | ||
| trendFramesRemaining--; | ||
| time++; | ||
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| if (trendFramesRemaining <= 0) { | ||
| nextTrend(); | ||
| } | ||
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| return price.setScale(2, RoundingMode.HALF_UP); | ||
| } | ||
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| public void handleEvent() { | ||
| private void nextTrend() { | ||
| trend = random.nextInt(101) - 50; | ||
| trendTimeframe = random.nextInt(120) + MIN_TREND_FRAMES; | ||
| trendFramesRemaining = trendTimeframe; | ||
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| if (isTrajectorySteep()) { | ||
| prepareEvent(); | ||
| delay = 20; | ||
| } else { | ||
| delay = 0; | ||
| pendingShock = null; | ||
| } | ||
| } | ||
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| private void prepareEvent() { | ||
| int direction = trend > 0 ? 1 : -1; | ||
| double scaledMagnitude = EVENT_MAGNITUDE * ((double) Math.abs(trend) / 50.0); | ||
| pendingShock = BigDecimal.valueOf(direction * scaledMagnitude); | ||
| EventBus.get() | ||
| .publish(new StockEvent(stock.getCompany(), trend)); | ||
| } | ||
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| public boolean isTrajectorySteep() { | ||
| return true; | ||
| private boolean isTrajectorySteep() { | ||
| return Math.abs(trend) > STEEP_THRESHOLD; | ||
| } | ||
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| public boolean isDelay() { | ||
| private boolean isDelay() { | ||
| return delay > 0; | ||
| } | ||
| } | ||
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| public BigDecimal getPrice() { | ||
| return price; | ||
| } | ||
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| } |
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