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* Commit for mainflux-596 Modified and tested: - cli - http - mqtt - normalizer - all readers - sdk messages - all writers - ws Missing: - coap - lora Signed-off-by: ale <ale@metaverso.org> * - fix subtopic name in, when starting with dot, http/ws/mqtt - add some test on readers Signed-off-by: ale <ale@metaverso.org> * - fix string concatenation - update http/transport regexp to match subtopic names with only \w- - update ws/transport regexp like http ones with also the wildcard * and > Signed-off-by: ale <ale@metaverso.org> * added subtopic support to coap adapter Signed-off-by: ale <ale@metaverso.org> * - update replace functions with replaceall when needed - renamed getDestChannel to fmtSubject - update api/transport and ws/transport route to be more readable - fix mqtt syntax - renamed func andQuery to query as suggested by @anovakovic01 - have a nice we :) Signed-off-by: ale <ale@metaverso.org> * - fix error declaration on ws/nat/publisher - fix regexp added missing allowed chars - and _ on coap/api/transport - fix subtopic clean suffix / if present on coap/api/transport - improve regexp on http and ws /api/transport, now does not accept url that do not strictly match - add some ws subtopic tests Signed-off-by: ale <ale@metaverso.org> * - enabled wildcard chars on coap/api/transport - allow use special chars on http and ws api/transport Signed-off-by: ale <ale@metaverso.org> * - use strings.Replace() insted ReplaceAll() Signed-off-by: ale <ale@metaverso.org> * - allow every chars on subtopics - fix replace error on mqtt Signed-off-by: ale <ale@metaverso.org> * fix cassandra test Signed-off-by: ale <ale@metaverso.org> * fix ws test with invalid subtopic Signed-off-by: ale <ale@metaverso.org> * fix invalid GOCACHE in go1.12, replaced by -count 1, see https://golang.org/doc/go1.10#test Signed-off-by: ale <ale@metaverso.org> * - improve regexp on http/ws api/transport - minor changes Signed-off-by: ale <ale@metaverso.org> * - add generic function parseSubtopic on ws/http adapters Signed-off-by: ale <ale@metaverso.org> * - add generic function fmtSubtopic on coap adapter Signed-off-by: ale <ale@metaverso.org>
Message normalizer
Normalizer service consumes events published by adapters, normalizes SenML-formatted ones, and publishes them to the post-processing stream.
Configuration
The service is configured using the environment variables presented in the following table. Note that any unset variables will be replaced with their default values.
| Variable | Description | Default |
|---|---|---|
| MF_NATS_URL | NATS instance URL | nats://localhost:4222 |
| MF_NORMALIZER_LOG_LEVEL | Log level for the Normalizer | error |
| MF_NORMALIZER_PORT | Normalizer service HTTP port | 8180 |
Deployment
The service itself is distributed as Docker container. The following snippet provides a compose file template that can be used to deploy the service container locally:
version: "2"
services:
normalizer:
image: mainflux/normalizer:[version]
container_name: [instance name]
environment:
MF_NATS_URL: [NATS instance URL]
MF_NORMALIZER_LOG_LEVEL: [Normalizer log level]
MF_NORMALIZER_PORT: [Service HTTP port]
To start the service outside of the container, execute the following shell script:
# download the latest version of the service
go get github.com/mainflux/mainflux
cd $GOPATH/src/github.com/mainflux/mainflux
# compile the app; make sure to set the proper GOOS value
make normalizer
# copy binary to bin
make install
# set the environment variables and run the service
MF_NATS_URL=[NATS instance URL] MF_NORMALIZER_LOG_LEVEL=[Normalizer log level] MF_NORMALIZER_PORT=[Service HTTP port] $GOBIN/mainflux-normalizer