Wip/jonas rem/implement send operation #75
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Signed-off-by: Jonas Remmert <jremmert@gmx.net>
When using the LWM2M SEND operation, leshan uses a different format,
called timestamped. In order to process SEND requests, this commit adds
a new timestamped serializer.
An Endpoint can send multiple resources with the SEND request at once.
In case multiple endpoints are send, django summarizes all of them
(regardless of the object) and links them to a new event. The name of
the event is the object of the first resource. In the example payload
below, the event name would be "3303".
Example SEND Operation:
{
"ep" : "urn:imei:100000000000000",
"val" : {
"empty" : false,
"timestamps" : [ null ],
"nodes" : {
"/3303/0/5700" : {
"kind" : "singleResource",
"id" : 5700,
"type" : "FLOAT",
"value" : "21.13306311567618"
},
"/3304/0/5700" : {
"kind" : "singleResource",
"id" : 5700,
"type" : "FLOAT",
"value" : "54.92426540118741"
}
}
}
}
Signed-off-by: Jonas Remmert <jremmert@gmx.net>
Signed-off-by: Jonas Remmert <jremmert@gmx.net>
Observe operations are currently problematic. The observations become invalid, in case the endpoint changes it's ip address, route or port. Once DTLS is activated, observe operations should work reliably. For sending temperature values or generally frequent sensor values, send operations are better suited anyways as each value is guaranteed to be send. With observe operations, only the most recent value is send. Signed-off-by: Jonas Remmert <jremmert@gmx.net>
Signed-off-by: Jonas Remmert <jremmert@gmx.net>
Signed-off-by: Jonas Remmert <jremmert@gmx.net>
Signed-off-by: Jonas Remmert <jremmert@gmx.net>
Signed-off-by: Jonas Remmert <jremmert@gmx.net>
Redis showed some instabilities, this commit adds logging to the common logging files. In addition it sets the memory usage to max 20 MB and disables persistence. Signed-off-by: Jonas Remmert <jremmert@gmx.net>
Signed-off-by: Jonas Remmert <jremmert@gmx.net>
Signed-off-by: Jonas Remmert <jremmert@gmx.net>
Signed-off-by: Jonas Remmert <jremmert@gmx.net>
Signed-off-by: Jonas Remmert <jremmert@gmx.net>
Signed-off-by: Jonas Remmert <jremmert@gmx.net>
Signed-off-by: Jonas Remmert <jremmert@gmx.net>
Signed-off-by: Jonas Remmert <jremmert@gmx.net>
Signed-off-by: Jonas Remmert <jremmert@gmx.net>
Signed-off-by: Jonas Remmert <jremmert@gmx.net>
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TODO:
When using the LWM2M SEND operation, leshan uses a different format,
called timestamped. In order to process SEND requests, this commit adds
a new timestamped serializer.
An Endpoint can send multiple resources with the SEND request at once.
In case multiple endpoints are send, django summarizes all of them
(regardless of the object) and links them to a new event. The name of
the event is the object of the first resource. In the example payload
below, the event name would be "3303".
Example SEND Operation: