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/**
 * The MIT License (MIT)
 *
 * Copyright (c) 2014-2017 Marc de Verdelhan, 2017-2019 Ta4j Organization & respective
 * authors (see AUTHORS)
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 * the Software, and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
package ta4jexamples.strategies;

import org.ta4j.core.BarSeries;
import org.ta4j.core.BarSeriesManager;
import org.ta4j.core.BaseStrategy;
import org.ta4j.core.Rule;
import org.ta4j.core.Strategy;
import org.ta4j.core.TradingRecord;
import org.ta4j.core.analysis.criteria.TotalProfitCriterion;
import org.ta4j.core.indicators.SMAIndicator;
import org.ta4j.core.indicators.adx.ADXIndicator;
import org.ta4j.core.indicators.adx.MinusDIIndicator;
import org.ta4j.core.indicators.adx.PlusDIIndicator;
import org.ta4j.core.indicators.helpers.ClosePriceIndicator;
import org.ta4j.core.trading.rules.CrossedDownIndicatorRule;
import org.ta4j.core.trading.rules.CrossedUpIndicatorRule;
import org.ta4j.core.trading.rules.OverIndicatorRule;
import org.ta4j.core.trading.rules.UnderIndicatorRule;
import ta4jexamples.loaders.CsvTradesLoader;

/**
 * ADX indicator based strategy
 *
 * @see 
 *      http://stockcharts.com/school/doku.php?id=chart_school:technical_indicators:average_directional_index_adx
 */
public class ADXStrategy {

    /**
     * @param series a bar series
     * @return an adx indicator based strategy
     */
    public static Strategy buildStrategy(BarSeries series) {
        if (series == null) {
            throw new IllegalArgumentException("Series cannot be null");
        }

        final ClosePriceIndicator closePriceIndicator = new ClosePriceIndicator(series);
        final SMAIndicator smaIndicator = new SMAIndicator(closePriceIndicator, 50);

        final int adxBarCount = 14;
        final ADXIndicator adxIndicator = new ADXIndicator(series, adxBarCount);
        final OverIndicatorRule adxOver20Rule = new OverIndicatorRule(adxIndicator, 20);

        final PlusDIIndicator plusDIIndicator = new PlusDIIndicator(series, adxBarCount);
        final MinusDIIndicator minusDIIndicator = new MinusDIIndicator(series, adxBarCount);

        final Rule plusDICrossedUpMinusDI = new CrossedUpIndicatorRule(plusDIIndicator, minusDIIndicator);
        final Rule plusDICrossedDownMinusDI = new CrossedDownIndicatorRule(plusDIIndicator, minusDIIndicator);
        final OverIndicatorRule closePriceOverSma = new OverIndicatorRule(closePriceIndicator, smaIndicator);
        final Rule entryRule = adxOver20Rule.and(plusDICrossedUpMinusDI).and(closePriceOverSma);

        final UnderIndicatorRule closePriceUnderSma = new UnderIndicatorRule(closePriceIndicator, smaIndicator);
        final Rule exitRule = adxOver20Rule.and(plusDICrossedDownMinusDI).and(closePriceUnderSma);

        return new BaseStrategy("ADX", entryRule, exitRule, adxBarCount);
    }

    public static void main(String[] args) {

        // Getting the bar series
        BarSeries series = CsvTradesLoader.loadBitstampSeries();

        // Building the trading strategy
        Strategy strategy = buildStrategy(series);

        // Running the strategy
        BarSeriesManager seriesManager = new BarSeriesManager(series);
        TradingRecord tradingRecord = seriesManager.run(strategy);
        System.out.println("Number of trades for the strategy: " + tradingRecord.getTradeCount());

        // Analysis
        System.out.println(
                "Total profit for the strategy: " + new TotalProfitCriterion().calculate(series, tradingRecord));
    }
}