PowerBufferResponseMessage.java

/**
 * Copyright (c) 2010-2016 by the respective copyright holders.
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 */
package org.openhab.binding.plugwise.protocol;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.openhab.binding.plugwise.internal.Energy;

/**
 * Response to a PowerBufferRequest
 *
 * @author Karel Goderis
 * @since 1.1.0
 */
public class PowerBufferResponseMessage extends Message {

    private static final Pattern RESPONSE_PATTERN = Pattern
            .compile("(\\w{16})(\\w{8})(\\w{8})(\\w{8})(\\w{8})(\\w{8})(\\w{8})(\\w{8})(\\w{8})(\\w{8})");

    Energy[] datapoints;
    private int logAddress;

    public PowerBufferResponseMessage(int sequenceNumber, String payLoad) {
        super(sequenceNumber, payLoad);
        type = MessageType.POWER_BUFFER_RESPONSE;
    }

    @Override
    protected String payLoadToHexString() {
        return payLoad;
    }

    public Energy getEnergy(int i) {
        return datapoints[i];
    }

    public Energy[] getDatapoints() {
        return datapoints;
    }

    public int getLogAddress() {
        return logAddress;
    }

    @Override
    protected void parsePayLoad() {
        Matcher matcher = RESPONSE_PATTERN.matcher(payLoad);
        if (matcher.matches()) {
            MAC = matcher.group(1);
            datapoints = new Energy[4];

            if (!matcher.group(2).equals("FFFFFFFF")) {
                datapoints[0] = new Energy(matcher.group(2), Long.parseLong(matcher.group(3), 16), 3600);
            } else {
                datapoints[0] = null;
            }
            if (!matcher.group(4).equals("FFFFFFFF")) {
                datapoints[1] = new Energy(matcher.group(4), Long.parseLong(matcher.group(5), 16), 3600);
            } else {
                datapoints[1] = null;
            }
            if (!matcher.group(6).equals("FFFFFFFF")) {
                datapoints[2] = new Energy(matcher.group(6), Long.parseLong(matcher.group(7), 16), 3600);
            } else {
                datapoints[2] = null;
            }
            if (!matcher.group(8).equals("FFFFFFFF")) {
                datapoints[3] = new Energy(matcher.group(8), Long.parseLong(matcher.group(9), 16), 3600);
            } else {
                datapoints[3] = null;
            }

            logAddress = (Integer.parseInt(matcher.group(10), 16) - 278528) / 32;
        } else {
            logger.debug("Plugwise protocol PowerBufferResponseMessage error: {} does not match", payLoad);
        }
    }

}