/**
* 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.rfxcom.internal.messages;
import java.util.Arrays;
import java.util.List;
import javax.xml.bind.DatatypeConverter;
import org.openhab.binding.rfxcom.RFXComValueSelector;
import org.openhab.binding.rfxcom.internal.RFXComException;
import org.openhab.core.library.items.NumberItem;
import org.openhab.core.library.items.StringItem;
import org.openhab.core.library.types.DecimalType;
import org.openhab.core.library.types.StringType;
import org.openhab.core.types.State;
import org.openhab.core.types.Type;
import org.openhab.core.types.UnDefType;
/**
* RFXCOM data class for Current and Energy message.
*
* @author Damien Servant
* @since 1.9.0
*/
public class RFXComCurrentEnergyMessage extends RFXComBaseMessage {
/*
* Current packet layout (length 19) - ELEC4 - OWL - CM180i
* packetlength = 0
* packettype = 1
* subtype = 2
* seqnbr = 3
* id1 = 4
* id2 = 5
* count = 6
* ch1h = 7
* ch1l = 8
* ch2h = 9
* ch2l = 10
* ch3h = 11
* ch3l = 12
* total1 = 13
* total2 = 14
* total3 = 15
* total4 = 16
* total5 = 17
* total6 = 18
* battery_level : 19 //bits 3-0
* signal_level : 19 //bits 7-4
*/
private static float TOTAL_USAGE_CONVERSION_FACTOR = 223.666F;
public enum SubType {
ELEC4(1), // OWL - CM180i
UNKNOWN(255);
private final int subType;
SubType(int subType) {
this.subType = subType;
}
SubType(byte subType) {
this.subType = subType;
}
public byte toByte() {
return (byte) subType;
}
public static SubType fromByte(int input) {
for (SubType c : SubType.values()) {
if (c.subType == input) {
return c;
}
}
return SubType.UNKNOWN;
}
}
private final static List<RFXComValueSelector> supportedValueSelectors = Arrays.asList(RFXComValueSelector.RAW_DATA,
RFXComValueSelector.SIGNAL_LEVEL, RFXComValueSelector.BATTERY_LEVEL, RFXComValueSelector.CHANNEL1_AMPS,
RFXComValueSelector.CHANNEL2_AMPS, RFXComValueSelector.CHANNEL3_AMPS, RFXComValueSelector.TOTAL_USAGE);
public SubType subType = SubType.UNKNOWN;
public int sensorId = 0;
public byte count = 0;
public double channel1Amps = 0.0;
public double channel2Amps = 0.0;
public double channel3Amps = 0.0;
public double totalUsage = 0.0;
public byte signalLevel = 0;
public byte batteryLevel = 0;
public RFXComCurrentEnergyMessage() {
packetType = PacketType.CURRENT_ENERGY;
}
public RFXComCurrentEnergyMessage(byte[] data) {
encodeMessage(data);
}
@Override
public String toString() {
String str = "";
str += super.toString();
str += "\n - Sub type = " + subType;
str += "\n - Id = " + sensorId;
str += "\n - Count = " + count;
str += "\n - Channel1 Amps = " + channel1Amps;
str += "\n - Channel2 Amps = " + channel2Amps;
str += "\n - Channel3 Amps = " + channel3Amps;
str += "\n - Total Usage = " + totalUsage;
str += "\n - Signal level = " + signalLevel;
str += "\n - Battery level = " + batteryLevel;
return str;
}
@Override
public void encodeMessage(byte[] data) {
super.encodeMessage(data);
subType = SubType.fromByte(super.subType);
sensorId = (data[4] & 0xFF) << 8 | (data[5] & 0xFF);
count = data[6];
// Current = Field / 10
channel1Amps = ((data[7] & 0xFF) << 8 | (data[8] & 0xFF)) / 10.0;
channel2Amps = ((data[9] & 0xFF) << 8 | (data[10] & 0xFF)) / 10.0;
channel3Amps = ((data[11] & 0xFF) << 8 | (data[12] & 0xFF)) / 10.0;
totalUsage = ((long) (data[13] & 0xFF) << 40 | (long) (data[14] & 0xFF) << 32 | (data[15] & 0xFF) << 24
| (data[16] & 0xFF) << 16 | (data[17] & 0xFF) << 8 | (data[18] & 0xFF));
totalUsage = totalUsage / TOTAL_USAGE_CONVERSION_FACTOR;
signalLevel = (byte) ((data[19] & 0xF0) >> 4);
batteryLevel = (byte) (data[19] & 0x0F);
}
@Override
public byte[] decodeMessage() {
byte[] data = new byte[20];
data[0] = (byte) (data.length - 1);
data[1] = RFXComBaseMessage.PacketType.CURRENT_ENERGY.toByte();
data[2] = subType.toByte();
data[3] = seqNbr;
data[4] = (byte) ((sensorId & 0xFF00) >> 8);
data[5] = (byte) (sensorId & 0x00FF);
data[6] = count;
data[7] = (byte) (((int) (channel1Amps * 10.0) >> 8) & 0xFF);
data[8] = (byte) ((int) (channel1Amps * 10.0) & 0xFF);
data[9] = (byte) (((int) (channel2Amps * 10.0) >> 8) & 0xFF);
data[10] = (byte) ((int) (channel2Amps * 10.0) & 0xFF);
data[11] = (byte) (((int) (channel3Amps * 10.0) >> 8) & 0xFF);
data[12] = (byte) ((int) (channel3Amps * 10.0) & 0xFF);
long totalUsageLoc = (long) (totalUsage * TOTAL_USAGE_CONVERSION_FACTOR);
data[13] = (byte) ((totalUsageLoc >> 40) & 0xFF);
data[14] = (byte) ((totalUsageLoc >> 32) & 0xFF);
data[15] = (byte) ((totalUsageLoc >> 24) & 0xFF);
data[16] = (byte) ((totalUsageLoc >> 16) & 0xFF);
data[17] = (byte) ((totalUsageLoc >> 8) & 0xFF);
data[18] = (byte) (totalUsageLoc & 0xFF);
data[19] = (byte) (((signalLevel & 0x0F) << 4) | (batteryLevel & 0x0F));
return data;
}
@Override
public String generateDeviceId() {
return String.valueOf(sensorId);
}
@Override
public State convertToState(RFXComValueSelector valueSelector) throws RFXComException {
org.openhab.core.types.State state = UnDefType.UNDEF;
if (valueSelector.getItemClass() == NumberItem.class) {
if (valueSelector == RFXComValueSelector.SIGNAL_LEVEL) {
state = new DecimalType(signalLevel);
} else if (valueSelector == RFXComValueSelector.BATTERY_LEVEL) {
state = new DecimalType(batteryLevel);
} else if (valueSelector == RFXComValueSelector.CHANNEL1_AMPS) {
state = new DecimalType(channel1Amps);
} else if (valueSelector == RFXComValueSelector.CHANNEL2_AMPS) {
state = new DecimalType(channel2Amps);
} else if (valueSelector == RFXComValueSelector.CHANNEL3_AMPS) {
state = new DecimalType(channel3Amps);
} else if (valueSelector == RFXComValueSelector.TOTAL_USAGE) {
state = new DecimalType(totalUsage);
} else {
throw new RFXComException("Can't convert " + valueSelector + " to NumberItem");
}
} else if (valueSelector.getItemClass() == StringItem.class) {
if (valueSelector == RFXComValueSelector.RAW_DATA) {
state = new StringType(DatatypeConverter.printHexBinary(rawMessage));
} else {
throw new RFXComException("Can't convert " + valueSelector + " to StringItem");
}
} else {
throw new RFXComException("Can't convert " + valueSelector + " to " + valueSelector.getItemClass());
}
return state;
}
@Override
public void convertFromState(RFXComValueSelector valueSelector, String id, Object subType, Type type,
byte seqNumber) throws RFXComException {
throw new RFXComException("Not supported");
}
@Override
public Object convertSubType(String subType) throws RFXComException {
for (SubType s : SubType.values()) {
if (s.toString().equals(subType)) {
return s;
}
}
throw new RFXComException("Unknown sub type " + subType);
}
@Override
public List<RFXComValueSelector> getSupportedValueSelectors() throws RFXComException {
return supportedValueSelectors;
}
}