com.barchart.feed.ddf.historical.provider.EntryBar.java Source code

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Here is the source code for com.barchart.feed.ddf.historical.provider.EntryBar.java

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/**
 * Copyright (C) 2011-2012 Barchart, Inc. <http://www.barchart.com/>
 *
 * All rights reserved. Licensed under the OSI BSD License.
 *
 * http://www.opensource.org/licenses/bsd-license.php
 */
package com.barchart.feed.ddf.historical.provider;

import static com.barchart.feed.ddf.historical.provider.CodecHelper.decodeInt;
import static com.barchart.feed.ddf.historical.provider.CodecHelper.decodeLong;
import static com.barchart.feed.ddf.historical.provider.CodecHelper.decodeMantissa;
import static com.barchart.feed.ddf.historical.provider.CodecHelper.decodeMinsTime;
import static com.barchart.feed.ddf.historical.provider.CodecHelper.encodeLong;
import static com.barchart.feed.ddf.historical.provider.CodecHelper.encodeMantissa;
import static com.barchart.feed.ddf.historical.provider.CodecHelper.encodeMinsTime;
import static com.barchart.feed.ddf.historical.provider.CodecHelper.splitCSV;

import org.joda.time.DateTime;
import org.joda.time.DateTimeZone;

import com.barchart.feed.api.model.meta.Instrument;
import com.barchart.feed.ddf.historical.api.DDF_EntryBar;
import com.barchart.feed.ddf.message.enums.DDF_TradeDay;
import com.barchart.util.common.ascii.ASCII;

// TODO: Auto-generated Javadoc
abstract class EntryBar extends Entry implements DDF_EntryBar {

    /**
     * Instantiates a new entry bar.
     *
     * @param instrument the instrument
     */
    public EntryBar(final Instrument instrument) {
        super(instrument);
    }

    // ///////////////////////////

    //

    protected long priceOpenMantissa;
    protected long priceHighMantissa;
    protected long priceLowMantissa;
    protected long priceCloseMantissa;

    protected long sizeVolume;

    // ///////////////////////////

    /* (non-Javadoc)
     * @see com.barchart.feed.ddf.historical.api.DDF_EntryBar#priceCloseMantissa()
     */
    @Override
    public long priceCloseMantissa() {
        return priceCloseMantissa;
    }

    /* (non-Javadoc)
     * @see com.barchart.feed.ddf.historical.api.DDF_EntryBar#priceHighMantissa()
     */
    @Override
    public long priceHighMantissa() {
        return priceHighMantissa;
    }

    /* (non-Javadoc)
     * @see com.barchart.feed.ddf.historical.api.DDF_EntryBar#priceLowMantissa()
     */
    @Override
    public long priceLowMantissa() {
        return priceLowMantissa;
    }

    /* (non-Javadoc)
     * @see com.barchart.feed.ddf.historical.api.DDF_EntryBar#priceOpenMantissa()
     */
    @Override
    public long priceOpenMantissa() {
        return priceOpenMantissa;
    }

    /* (non-Javadoc)
     * @see com.barchart.feed.ddf.historical.api.DDF_EntryBar#sizeVolume()
     */
    @Override
    public long sizeVolume() {
        return sizeVolume;
    }

    //

    /**
     * YYYYMMDDHH:MM,TRADING_DAY,
     * 
     * OPEN,HIGH,LOW,CLOSE,VOLUME.
     *
     * @param inputLine the input line
     */
    @Override
    public void decode(final String inputLine) {

        if (inputLine == null) {
            return;
        }

        final String[] inputArray = splitCSV(inputLine);

        millisUTC = decodeMinsTime(inputArray[0], inst);

        ordTradeDay = DDF_TradeDay.fromDay(decodeInt(inputArray[1])).ord;

        priceOpenMantissa = decodeMantissa(inputArray[2], priceExponent());
        priceHighMantissa = decodeMantissa(inputArray[3], priceExponent());
        priceLowMantissa = decodeMantissa(inputArray[4], priceExponent());
        priceCloseMantissa = decodeMantissa(inputArray[5], priceExponent());

        sizeVolume = decodeLong(inputArray[6]);

    }

    /* (non-Javadoc)
     * @see com.barchart.feed.ddf.historical.provider.Entry#encode()
     */
    @Override
    public String encode() {

        final StringBuilder text = new StringBuilder(128);

        text.append(encodeMinsTime(millisUTC, inst));
        text.append(ASCII.STRING_COMMA);

        text.append((char) getTradeDay().code);
        text.append(ASCII.STRING_COMMA);

        text.append(encodeMantissa(priceOpenMantissa, priceExponent()));
        text.append(ASCII.STRING_COMMA);
        text.append(encodeMantissa(priceHighMantissa, priceExponent()));
        text.append(ASCII.STRING_COMMA);
        text.append(encodeMantissa(priceLowMantissa, priceExponent()));
        text.append(ASCII.STRING_COMMA);
        text.append(encodeMantissa(priceCloseMantissa, priceExponent()));
        text.append(ASCII.STRING_COMMA);

        text.append(encodeLong(sizeVolume));

        return text.toString();

    }

    //

    static final String HEADER = "INDEX,SYMBOL,MILLIS_UTC,DATE_TIME_ISO,TRADE_DAY,"
            + "PRICE_OPEN,PRICE_HIGH,PRICE_LOW,PRICE_CLOSE," + "SIZE_VOLUME";

    /* (non-Javadoc)
     * @see com.barchart.feed.ddf.historical.provider.Entry#csvHeader()
     */
    @Override
    public String csvHeader() {
        return HEADER;
    }

    /* (non-Javadoc)
     * @see com.barchart.feed.ddf.historical.provider.Entry#csvEntry()
     */
    @Override
    public String csvEntry() {

        final StringBuilder text = new StringBuilder(128);

        text.append(index);
        text.append(ASCII.STRING_COMMA);

        text.append(inst.symbol());
        text.append(ASCII.STRING_COMMA);

        text.append(millisUTC);
        text.append(ASCII.STRING_COMMA);

        text.append(new DateTime(millisUTC, DateTimeZone.forOffsetMillis((int) inst.timeZoneOffset())));
        text.append(ASCII.STRING_COMMA);

        text.append(getTradeDay());
        text.append(ASCII.STRING_COMMA);

        text.append(encodeMantissa(priceOpenMantissa, priceExponent()));
        text.append(ASCII.STRING_COMMA);

        text.append(encodeMantissa(priceHighMantissa, priceExponent()));
        text.append(ASCII.STRING_COMMA);

        text.append(encodeMantissa(priceLowMantissa, priceExponent()));
        text.append(ASCII.STRING_COMMA);

        text.append(encodeMantissa(priceCloseMantissa, priceExponent()));
        text.append(ASCII.STRING_COMMA);

        text.append(encodeLong(sizeVolume));

        return text.toString();

    }
}