org.bitcoinrt.client.AbstractMtgoxClient.java Source code

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Here is the source code for org.bitcoinrt.client.AbstractMtgoxClient.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 net.minidev.json.JSONObject;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.context.Lifecycle;
import org.springframework.integration.MessageChannel;
import org.springframework.integration.support.MessageBuilder;

import com.jayway.jsonpath.JsonPath;

public abstract class AbstractMtgoxClient implements Lifecycle, InitializingBean {

    protected static final String MTGOX_URL = "ws://websocket.mtgox.com/mtgox";
    protected static final String MTGOX_TRADES_CHANNEL = "dbf1dee9-4f2e-4a08-8cb7-748919a71b21";
    protected static final String MTGOX_TICKER_CHANNEL = "d5f06780-30a8-4a48-a2f8-7ed181b4a13f";
    protected static final String MTGOX_DEPTH_CHANNEL = "24e67e0d-1cad-4cc0-9e7a-f8523ef460fe";

    protected final Logger logger = LoggerFactory.getLogger(getClass());

    protected final MessageChannel outputChannel;

    public AbstractMtgoxClient(MessageChannel outputChannel) {
        this.outputChannel = outputChannel;
    }

    public abstract void start();

    public abstract void stop();

    protected void onMessage(String message) {
        logger.debug("New message: " + message);

        String channel = JsonPath.compile("$.channel").read(message);

        String primary = null;
        try {
            primary = JsonPath.compile("$.trade.primary").read(message);
        } catch (Exception ex) {
            // ignore
        }

        if (MTGOX_TRADES_CHANNEL.equals(channel) && "Y".equals(primary)) {

            JSONObject trade = JsonPath.compile("$.trade").read(message);

            outputChannel.send(MessageBuilder.withPayload(trade.toString()).build());

            // Example message:
            // {"channel":"dbf1dee9-4f2e-4a08-8cb7-748919a71b21","op":"private","origin":"broadcast","private":"trade","trade":{"amount":0.01,"amount_int":"1000000","date":1342989115,"item":"BTC","price":8.50097,"price_currency":"USD","price_int":"850097","primary":"Y","properties":"limit","tid":"1342989115044532","trade_type":"bid","type":"trade"}}
            logger.debug("Published trade: " + trade);
        } else {
            // ignore any non-trade messages that might slip in before our
            // op:unsubscribes sent above have been handled; also ignore any
            // 'non-primary' trades. see
            // https://en.bitcoin.it/wiki/MtGox/API/HTTP/v1#Multi_currency_trades
            logger.debug("Message ignored");
        }
    }

    @Override
    public void afterPropertiesSet() throws Exception {
        this.start();
    }

    @Override
    public boolean isRunning() {
        // TODO Auto-generated method stub
        return false;
    }
}