Java tutorial
/** * The MIT License (MIT) * * Copyright (c) 2014-2016 Marc de Verdelhan & 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 com.ctp.util; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileWriter; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.nio.charset.Charset; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.List; import java.util.logging.Level; import java.util.logging.Logger; import org.joda.time.DateTime; import org.joda.time.Period; import au.com.bytecode.opencsv.CSVReader; import au.com.bytecode.opencsv.CSVWriter; import eu.verdelhan.ta4j.Decimal; import eu.verdelhan.ta4j.Tick; import eu.verdelhan.ta4j.TimeSeries; /** * This class build a Ta4j time series from a CSV file containing ticks. */ public class CsvTicksLoader { private static final SimpleDateFormat DATE_FORMAT = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss"); private static final String FILE_PATH = "E:\\rb1610.csv"; /** * @return a time series from Apple Inc. ticks. */ public static TimeSeries loadAppleIncSeries() { // InputStream stream = CsvTicksLoader.class.getClassLoader().getResourceAsStream("appleinc_ticks_from_20130101_usd.csv"); InputStream stream = null; try { stream = new FileInputStream(new File(FILE_PATH)); } catch (FileNotFoundException e) { e.printStackTrace(); } List<Tick> ticks = new ArrayList<Tick>(); CSVReader csvReader = new CSVReader(new InputStreamReader(stream, Charset.forName("UTF-8")), ',', '"', 1); try { String[] line; while ((line = csvReader.readNext()) != null) { DateTime date = new DateTime(DATE_FORMAT.parse(line[0])); double open = Double.parseDouble(line[1]); double high = Double.parseDouble(line[2]); double low = Double.parseDouble(line[3]); double close = Double.parseDouble(line[4]); double volume = Double.parseDouble(line[5]); ticks.add(new Tick(date, open, high, low, close, volume)); } } catch (IOException ioe) { Logger.getLogger(CsvTicksLoader.class.getName()).log(Level.SEVERE, "Unable to load ticks from CSV", ioe); } catch (NumberFormatException nfe) { Logger.getLogger(CsvTicksLoader.class.getName()).log(Level.SEVERE, "Error while parsing value", nfe); } catch (ParseException e) { // TODO Auto-generated catch block e.printStackTrace(); } return new TimeSeries("rb1610_ticks", ticks); } /** * @return a time series from Apple Inc. ticks. */ public static void writeAppleIncSeries(Tick tick) { try { CSVWriter writer = new CSVWriter(new FileWriter(new File(FILE_PATH), true), ',', CSVWriter.NO_QUOTE_CHARACTER); String[] tk = new String[6]; tk[0] = DATE_FORMAT.format(tick.getEndTime().toDate()); tk[1] = tick.getOpenPrice() + ""; tk[2] = tick.getMaxPrice() + ""; tk[3] = tick.getMinPrice() + ""; tk[4] = tick.getClosePrice() + ""; tk[5] = tick.getVolume() + ""; writer.writeNext(tk); writer.close(); } catch (IOException e) { e.printStackTrace(); } } public static void main(String args[]) { /* TimeSeries series = CsvTicksLoader.loadAppleIncSeries(); System.out.println("Series: " + series.getName() + " (" + series.getSeriesPeriodDescription() + ")"); System.out.println("Number of ticks: " + series.getTickCount()); System.out.println("First tick: \n" + "\tVolume: " + series.getTick(0).getVolume() + "\n" + "\tOpen price: " + series.getTick(0).getOpenPrice()+ "\n" + "\tClose price: " + series.getTick(0).getClosePrice());*/ CsvTicksLoader.writeAppleIncSeries(new Tick(Period.days(1), new DateTime(), Decimal.valueOf(1), Decimal.valueOf(2), Decimal.valueOf(3), Decimal.valueOf(5), Decimal.valueOf(5))); } }