private void decodeCanData(ChannelBuffer buf, Position position) {
buf.readUnsignedMedium(); // packet identifier
buf.readUnsignedByte(); // version
int count = buf.readUnsignedByte();
buf.readUnsignedByte(); // batch count
buf.readUnsignedShort(); // selector bit
buf.readUnsignedInt(); // timestamp
buf.skipBytes(8);
ArrayList<ChannelBuffer> values = new ArrayList<>(count);
for (int i = 0; i < count; i++) {
values.add(buf.readBytes(8));
}
for (int i = 0; i < count; i++) {
ChannelBuffer value = values.get(i);
switch (buf.readInt()) {
case 0x20D:
position.set(Event.KEY_RPM, ChannelBuffers.swapShort(value.readShort()));
position.set("diesel-temperature", ChannelBuffers.swapShort(value.readShort()) * 0.1);
position.set("battery-voltage", ChannelBuffers.swapShort(value.readShort()) * 0.01);
position.set("supply-air-temp-dep1", ChannelBuffers.swapShort(value.readShort()) * 0.1);
break;
case 0x30D:
position.set("active-alarm", ChannelBuffers.hexDump(value));
break;
case 0x40C:
position.set("air-temp-dep1", ChannelBuffers.swapShort(value.readShort()) * 0.1);
position.set("air-temp-dep2", ChannelBuffers.swapShort(value.readShort()) * 0.1);
break;
case 0x40D:
position.set("cold-unit-state", ChannelBuffers.hexDump(value));
break;
case 0x50C:
position.set("defrost-temp-dep1", ChannelBuffers.swapShort(value.readShort()) * 0.1);
position.set("defrost-temp-dep2", ChannelBuffers.swapShort(value.readShort()) * 0.1);
break;
case 0x50D:
position.set("condenser-pressure", ChannelBuffers.swapShort(value.readShort()) * 0.1);
position.set("suction-pressure", ChannelBuffers.swapShort(value.readShort()) * 0.1);
break;
case 0x58C:
value.readByte();
value.readShort(); // index
switch (value.readByte()) {
case 0x01:
position.set("setpoint-zone1", ChannelBuffers.swapInt(value.readInt()) * 0.1);
break;
case 0x02:
position.set("setpoint-zone2", ChannelBuffers.swapInt(value.readInt()) * 0.1);
break;
case 0x05:
position.set("unit-type", ChannelBuffers.swapInt(value.readInt()));
break;
case 0x13:
position.set("diesel-hours", ChannelBuffers.swapInt(value.readInt()) / 60 / 60);
break;
case 0x14:
position.set("electric-hours", ChannelBuffers.swapInt(value.readInt()) / 60 / 60);
break;
case 0x17:
position.set("service-indicator", ChannelBuffers.swapInt(value.readInt()));
break;
case 0x18:
position.set("software-version", ChannelBuffers.swapInt(value.readInt()) * 0.01);
break;
default:
break;
}
break;
default:
Log.warning(new UnsupportedOperationException());
break;
}
}
}
