EHealthDatagram.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.ehealth.protocol;

import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;

/**
 * The whole set of data being read from the Libelium eHealth sensor kit.
 *
 * @author Thomas Eichstaedt-Engelen
 * @since 1.6.0
 */
public class EHealthDatagram {

    private Map<EHealthSensorPropertyName, Number> rawData;

    public EHealthDatagram(int airFlow, float temperature, float skinConductance, float skinResistance,
            float skinConductanceVoltage, int bpm, int oxygenSaturation, int bodyPosition, float ecg, int emg,
            int glucose) {
        this.rawData = new HashMap<EHealthSensorPropertyName, Number>();

        this.rawData.put(EHealthSensorPropertyName.AIR_FLOW, airFlow);
        this.rawData.put(EHealthSensorPropertyName.TEMPERATURE, temperature);

        this.rawData.put(EHealthSensorPropertyName.SKIN_CONDUCTANCE, skinConductance);
        this.rawData.put(EHealthSensorPropertyName.SKIN_RESISTANCE, skinResistance);
        this.rawData.put(EHealthSensorPropertyName.SKIN_CONDUCTANCE_VOLTAGE, skinConductanceVoltage);

        this.rawData.put(EHealthSensorPropertyName.BPM, bpm);
        this.rawData.put(EHealthSensorPropertyName.OXYGEN_SATURATION, oxygenSaturation);

        this.rawData.put(EHealthSensorPropertyName.BODY_POSITION, bodyPosition);

        this.rawData.put(EHealthSensorPropertyName.ECG, ecg);
        this.rawData.put(EHealthSensorPropertyName.EMG, emg);

        this.rawData.put(EHealthSensorPropertyName.GLUCOSE, glucose);
    }

    public void addRawDate(EHealthSensorPropertyName propertyName, Number value) {
        this.rawData.put(propertyName, value);
    }

    public Map<EHealthSensorPropertyName, Number> getRawData() {
        return rawData;
    }

    public int getAirFlow() {
        return (Integer) this.rawData.get(EHealthSensorPropertyName.AIR_FLOW);
    }

    public float getTemperature() {
        return (Float) this.rawData.get(EHealthSensorPropertyName.TEMPERATURE);
    }

    public float getSkinConductance() {
        return (Float) this.rawData.get(EHealthSensorPropertyName.SKIN_CONDUCTANCE);
    }

    public float getSkinResistance() {
        return (Float) this.rawData.get(EHealthSensorPropertyName.SKIN_RESISTANCE);
    }

    public float getSkinConductanceVoltage() {
        return (Float) this.rawData.get(EHealthSensorPropertyName.SKIN_CONDUCTANCE_VOLTAGE);
    }

    public int getBpm() {
        return (Integer) this.rawData.get(EHealthSensorPropertyName.BPM);
    }

    public int getOxygenSaturation() {
        return (Integer) this.rawData.get(EHealthSensorPropertyName.OXYGEN_SATURATION);
    }

    public int getBodyPosition() {
        return (Integer) this.rawData.get(EHealthSensorPropertyName.BODY_POSITION);
    }

    public float getEcg() {
        return (Float) this.rawData.get(EHealthSensorPropertyName.ECG);
    }

    public int getEmg() {
        return (Integer) this.rawData.get(EHealthSensorPropertyName.EMG);
    }

    public int getGlucose() {
        return (Integer) this.rawData.get(EHealthSensorPropertyName.GLUCOSE);
    }

    /**
     * Indicates if the value identified by {@code propertyName} has changed in comparison to
     * the {@code other} datagram or not.
     * 
     * @param other the other EHealthDatagram to compare the specific value
     * @param propertyName the name of the property to compare the value of
     * 
     * @return {@code true} if either {@code other} or {@code propertyName} is Null or the
     *         value is not equal and {@code false} in all other cases.
     */
    public boolean hasChanged(EHealthDatagram other, EHealthSensorPropertyName propertyName) {
        if (other == null || propertyName == null) {
            return true;
        }

        Number thisValue = getRawData().get(propertyName);
        Number thatValue = other.getRawData().get(propertyName);

        return !thisValue.equals(thatValue);
    }

    @Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        sb.append("EHealthDatagram [");
        for (Entry<EHealthSensorPropertyName, Number> entry : rawData.entrySet()) {
            sb.append(entry.getKey().getPropertyName()).append("=").append(entry.getValue()).append(", ");
        }
        sb.append("]");
        return sb.toString();
    }

}