org.bitcoinrt.client.StubMtgoxClient.java Source code

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Here is the source code for org.bitcoinrt.client.StubMtgoxClient.java

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/*
 * Copyright 2002-2012 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.bitcoinrt.client;

import java.util.Date;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

import org.springframework.integration.MessageChannel;

/**
 * A "stub" MtGox client that produces messages at fixed intervals.
 */
public class StubMtgoxClient extends AbstractMtgoxClient {

    private ExecutorService executor;

    private boolean shuttingDown = false;

    public StubMtgoxClient(MessageChannel outputChannel) {
        super(outputChannel);
    }

    @Override
    public void start() {

        this.executor = Executors.newSingleThreadExecutor();

        this.executor.submit(new Runnable() {
            @Override
            public void run() {
                while (!shuttingDown) {

                    String expression = "{\"channel\":\"dbf1dee9-4f2e-4a08-8cb7-748919a71b21\",\"op\":\"private\","
                            + "\"origin\":\"broadcast\",\"private\":\"trade\",\"trade\":{\"amount\":[%f],"
                            + "\"date\":[%d],\"price\":12.239,\"exchange\":\"mtgoxUSD\","
                            + "\"price_currency\":\"USD\",\"primary\":\"Y\","
                            + "\"txid\":\"1348679989121772\",\"type\":\"trade\"}}";

                    long timestamp = (long) (Math.floor(new Date().getTime() / 1000));
                    double amount = Math.floor(Math.random() * 20);
                    String message = String.format(expression, amount, timestamp);
                    onMessage(message);

                    try {
                        Thread.sleep(7000);
                    } catch (InterruptedException ex) {
                        logger.debug("Stub MtGox service interrupted");
                    }
                }
                logger.debug("Stub MtGox service stopped");
            }
        });

    }

    @Override
    public void stop() {
        logger.debug("Shutting down stub MtGox service...");
        this.shuttingDown = true;
        this.executor.shutdownNow();
    }
}