org.springframework.amqp.rabbit.stocks.service.stubs.ExecutionVenueServiceStub.java Source code

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Here is the source code for org.springframework.amqp.rabbit.stocks.service.stubs.ExecutionVenueServiceStub.java

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/*
 * Copyright 2002-2010 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.springframework.amqp.rabbit.stocks.service.stubs;

import java.math.BigDecimal;
import java.util.Random;
import java.util.UUID;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.amqp.rabbit.stocks.domain.TradeRequest;
import org.springframework.amqp.rabbit.stocks.domain.TradeResponse;
import org.springframework.amqp.rabbit.stocks.service.ExecutionVenueService;

/**
 * Execute the trade, setting the execution price to changing value in line with what the market data feed is producing.
 * 
 * @author Mark Pollack
 *
 */
public class ExecutionVenueServiceStub implements ExecutionVenueService {

    private static Log log = LogFactory.getLog(ExecutionVenueServiceStub.class);

    private Random random = new Random();

    public TradeResponse executeTradeRequest(TradeRequest request) {
        TradeResponse response = new TradeResponse();
        response.setAccountName(request.getAccountName());
        response.setOrderType(request.getOrderType());
        response.setPrice(calculatePrice(request.getTicker(), request.getQuantity(), request.getOrderType(),
                request.getPrice(), request.getUserName()));
        response.setQuantity(request.getQuantity());
        response.setTicker(request.getTicker());
        response.setRequestId(request.getId());
        response.setConfirmationNumber(UUID.randomUUID().toString());

        try {
            log.info("Sleeping 2 seconds to simulate processing..");
            Thread.sleep(2000);
        } catch (InterruptedException e) {
            log.error("Didn't finish sleeping", e);
        }
        return response;
    }

    private BigDecimal calculatePrice(String ticker, long quantity, String orderType, BigDecimal price,
            String userName) {
        // provide as sophisticated implementation...for now all the same price.
        if (orderType.compareTo("LIMIT") == 0) {
            return price;
        } else {
            //in line with market data implementation
            return new BigDecimal(22 + Math.abs(gaussian()));
        }
    }

    private double gaussian() {
        return random.nextGaussian();
    }

}