001/** 002 * Copyright (c) 2011, The University of Southampton and the individual contributors. 003 * All rights reserved. 004 * 005 * Redistribution and use in source and binary forms, with or without modification, 006 * are permitted provided that the following conditions are met: 007 * 008 * * Redistributions of source code must retain the above copyright notice, 009 * this list of conditions and the following disclaimer. 010 * 011 * * Redistributions in binary form must reproduce the above copyright notice, 012 * this list of conditions and the following disclaimer in the documentation 013 * and/or other materials provided with the distribution. 014 * 015 * * Neither the name of the University of Southampton nor the names of its 016 * contributors may be used to endorse or promote products derived from this 017 * software without specific prior written permission. 018 * 019 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 020 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 021 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 022 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR 023 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 024 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 025 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 026 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 027 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 028 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 029 */ 030package org.openimaj.demos.sandbox.ml.linear.learner.stream; 031 032import java.io.IOException; 033import java.net.MalformedURLException; 034import java.util.Map; 035 036import org.openimaj.util.function.Operation; 037import org.openimaj.util.function.context.ContextFunctionAdaptor; 038import org.openimaj.util.function.context.ContextOperationAdaptor; 039import org.openimaj.util.stream.window.ContextRealTimeWindowFunction; 040import org.openimaj.util.stream.window.WindowAverage; 041 042/** 043 * @author Sina Samangooei (ss@ecs.soton.ac.uk) 044 * 045 */ 046public class FinancialStreamTest { 047 /** 048 * @param args 049 * @throws MalformedURLException 050 * @throws IOException 051 */ 052 public static void main(String[] args) throws MalformedURLException, IOException { 053 054 // The financial stream 055 ContextRealTimeWindowFunction<Map<String,Double>> yahooWindow = new ContextRealTimeWindowFunction<Map<String,Double>>(1000); 056 new YahooFinanceStream(true,"apple","google") 057 .transform(yahooWindow) 058 .map(ContextFunctionAdaptor.create("item", "averageticks", new WindowAverage())) 059 .forEach(ContextOperationAdaptor.create(new Operation<Map<String,Double>>() { 060 @Override 061 public void perform(Map<String, Double> object) { 062 System.out.println(object); 063 } 064 }, 065 "averageticks" 066 ) 067 ); 068 069 070 } 071}