JSONCachedMeteringValueImpl.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.digitalstrom.internal.client.entity.impl;

import org.json.simple.JSONObject;
import org.openhab.binding.digitalstrom.internal.client.constants.JSONApiResponseKeysEnum;
import org.openhab.binding.digitalstrom.internal.client.entity.CachedMeteringValue;
import org.openhab.binding.digitalstrom.internal.client.entity.DSID;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * @author Alexander Betker
 * @since 1.3.0
 */
public class JSONCachedMeteringValueImpl implements CachedMeteringValue {

    private static final Logger logger = LoggerFactory.getLogger(JSONCachedMeteringValueImpl.class);

    private DSID dsid = null;
    private double value = 0;
    private String date = null;

    public JSONCachedMeteringValueImpl(JSONObject jObject) {
        if (jObject.get(JSONApiResponseKeysEnum.METERING_GET_LATEST_DSID.getKey()) != null) {
            this.dsid = new DSID(jObject.get(JSONApiResponseKeysEnum.METERING_GET_LATEST_DSID.getKey()).toString());
        }

        if (jObject.get(JSONApiResponseKeysEnum.METERING_GET_LATEST_VALUE.getKey()) != null) {
            try {
                this.value = Double.parseDouble(
                        jObject.get(JSONApiResponseKeysEnum.METERING_GET_LATEST_VALUE.getKey()).toString());
            } catch (java.lang.NumberFormatException e) {
                logger.error("NumberFormatException by getting value: "
                        + jObject.get(JSONApiResponseKeysEnum.METERING_GET_LATEST_VALUE.getKey()).toString());
            }
        }

        if (jObject.get(JSONApiResponseKeysEnum.METERING_GET_LATEST_DATE.getKey()) != null) {
            this.date = jObject.get(JSONApiResponseKeysEnum.METERING_GET_LATEST_DATE.getKey()).toString();
        }

    }

    @Override
    public DSID getDsid() {
        return dsid;
    }

    @Override
    public double getValue() {
        return value;
    }

    @Override
    public String getDate() {
        return date;
    }

    @Override
    public String toString() {
        return "dsid: " + this.getDsid() + ", date: " + this.getDate() + ", value: " + this.getValue();
    }

}