FritzahaWebserviceUpdateNumberCallback.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.fritzaha.internal.hardware.callbacks;

import java.math.BigDecimal;

import org.openhab.binding.fritzaha.internal.hardware.FritzahaWebInterface;
import org.openhab.binding.fritzaha.internal.hardware.interfaces.FritzahaOutletMeter.MeterType;
import org.openhab.core.library.types.DecimalType;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Callback implementation for updating numbers Supports reauthorization
 *
 * @author Christian Brauers
 * @since 1.3.0
 */
public class FritzahaWebserviceUpdateNumberCallback extends FritzahaReauthCallback {
    static final Logger logger = LoggerFactory.getLogger(FritzahaWebserviceUpdateNumberCallback.class);
    /**
     * Item to update
     */
    private String itemName;
    /**
     * Meter type to update
     */
    private MeterType type;

    /**
     * Constructor for retriable authentication and state updating
     * 
     * @param path
     *            Path to HTTP interface
     * @param args
     *            Arguments to use
     * @param webIface
     *            Web interface to use
     * @param httpMethod
     *            Method used
     * @param retries
     *            Number of retries
     * @param itemName
     *            Name of item to update
     */
    public FritzahaWebserviceUpdateNumberCallback(String path, String args, MeterType type,
            FritzahaWebInterface webIface, Method httpMethod, int retries, String itemName) {
        super(path, args, webIface, httpMethod, retries);
        this.itemName = itemName;
        this.type = type;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void execute(int status, String response) {
        super.execute(status, response);
        if (validRequest) {
            logger.debug("Received State response " + response + " for item " + itemName);
            BigDecimal meterValue = new BigDecimal(response.trim());
            BigDecimal meterValueScaled;
            switch (type) {
                case POWER:
                    meterValueScaled = meterValue.scaleByPowerOfTen(-3);
                    break;
                case ENERGY:
                default:
                    meterValueScaled = meterValue;
            }
            webIface.postUpdate(itemName, new DecimalType(meterValueScaled));
        }
    }

}