+++ /dev/null
----
-edit_link: ''
-title: Installation and Usage Guide
-origin_url: >-
- https://git.automotivelinux.org/apps/agl-service-can-high-level-viwi/plain/docs/2-Install-Usage.md?h=master
----
-
-<!-- WARNING: This file is generated by fetch_docs.js using /home/boron/Documents/AGL/docs-webtemplate/site/_data/tocs/apis_services/master/high-level-developer-guides-api-services-book.yml -->
-
-## Installation
-
-## Prerequisites
-
-Low level CAN service (>=4.0) must be installed. Prerequisites are the same.
-
-```bash
-$ git clone --recursive https://gerrit.automotivelinux.org/gerrit/apps/low-level-can-service
-```
-
-## Clone and build high level binding
-
-### Build requirements
-
-* CMake version 3.0 or later
-* G++, Clang++ or any C++11 compliant compiler.
-
-### Clone
-
-```bash
-$ export WD=$(pwd)
-$ git clone --recusive https://github.com/iotbzh/high-level-viwi-service.git
-```
-
-### Build
-
-```bash
-$ cd $WD/high-level-viwi-service
-$ mkdir build
-$ cd build
-$ cmake ..
-$ make
-```
-
-
-
-# Usage
-
-## JSON configuration file
-
-This file must be named *high.json*, and must accessible from afb-daemon.
-
-> **NOTE** A sample is available at the root of the git repository.
-
-The json configuration file consists in 2 sections:
-
-### Definitions section
-
-This section describes each resources defined in the high-level binding. Each resource is composed with different properties having a name, a type and a description.
-Type can be boolean, double, string, or int. Properties "id", "uri" and "name" are compulsory.
-
-For instance:
-
-```json
-{
- "name": "/car/demoboard/",
- "properties": {
- "id": {
- "type": "string",
- "description": "identifier"
- },
- "uri": {
- "type": "string",
- "description": "object uri"
- },
- "name": {
- "type": "string",
- "description": "name"
- },
- "unit": {
- "type": "string",
- "description": "units"
- },
- "speed": {
- "type": "double",
- "description": "vehicle centerpoint speed as shown by the instrument cluster"
- },
- "rpm": {
- "type": "double",
- "description": "engine rotations per minute"
- },
- "level": {
- "type": "double",
- "description": "level of tankage"
- },
- "load": {
- "type": "double",
- "description": "engine load"
- }
- }
-}
-```
-
-<!-- pagebreak -->
-
-### Resources section
-
-This section defines which values should be assigned to resource's properties as defined in the definitions section.
-The link to the definitions section is made through the name of the resource.
-
-Some values are static, some are linked to low-level requests.
-
-In case a value is linked to a low-level request, the value will start with "${" and end with "}". In that case the value will consist in the name of the low-level signal, followed
-with the frequency of the signal in ms. -1 in the frequency means that high level binding should subscribe to low level binding for all changes, without specifying a frequency.
-
-For instance:
-```json
-{
- "name": "/car/demoboard/",
- "values": [{
- "name": "vehicleSpeed",
- "unit": "km/h",
- "speed": "${diagnostic_messages.vehicle.speed,1000}"
- }, {
- "name": "engineSpeed",
- "unit": "rpm",
- "rpm": "${diagnostic_messages.engine.speed,1000}"
- }, {
- "name": "fuelLevel",
- "unit": "litre",
- "level": "${diagnostic_messages.fuel.level,1000}"
- }, {
- "name": "engineLoad",
- "unit": "Nm",
- "load": "${diagnostic_messages.engine.load,1000}"
- }]
-}
-```
-
-<!-- pagebreak -->
-
-## Running and testing
-
-### Launch the binder together with the two bindings
-
-The Json high level configuration file *high.json* must be placed in the directory where you launch afb-daemon.
-
-```bash
-$ cp $WD/high-level-viwi-service/high.json $WD
- cd $WD
-```
-
-Then you can natively under linux you can launch afb-daemon with the low-level and high-level bindings with a command like:
-
-```bash
-$ cd $WD
-$ afb-daemon --rootdir=$WD/low-level-can-service/CAN-binder/build/package --binding=$WD/low-level-can-service/CAN-binder/build/package/lib/afb-low-can.so --binding=$WD/high-level-viwi-service/build/package/lib/afb-high-viwi.so --port=1234 --tracereq=common --token=1 --verbose
-```
-
-### Use afb-client-demo to test high level binding
-
-On another terminal, connect to the binding using previously installed _**AFB Websocket CLI**_ tool:
-
-```bash
-$ afb-client-demo ws://localhost:1234/api?token=1
-```
-
-You will be on an interactive session where you can communicate directly with the binding API.
-
-The binding provides at this moment 3 verbs, _get_, _subscribe_ and _unsubscribe_, which can take a JSON object as an argument.
-
-
-To use the _**AFB Websocket CLI**_ tool, a command line will be like the following :
-
-```
-<api> <verb> <arguments>
-```
-
-Where:
-
-* API : _**high-viwi**_.
-* Verb : _**get**_, _**subscribe**_ or _**unsubscribe**_
-* Arguments : _**{ "name": "/car/doors/" }**_
-
-You can therefore use commands such as:
-
-```
-high-viwi subscribe {"name":"/car/doors/","interval":10000}
-high-viwi unsubscribe {"name":"/car/doors/","interval":10000}
-high-viwi get {"name":"/car/demoboard/"}
-high-viwi get {"name":"/car/demoboard/","fields":["fuelLevel","engineLoad"]}
-```
-
-For instance the output of the third command should be:
-
-```
-high-viwi get {"name":"/car/demoboard/"}
-ON-REPLY 1:high-viwi/get: {"response":{"\/car\/demoboard\/2159e2-5b638a-39e242-7a2f5":{"id":"2159e2-5b638a-39e242-7a2f5","name":"vehicleSpeed","speed":0.000000,"unit":"km\/h","uri":"\/car\/demoboard\/2159e2-5b638a-39e242-7a2f5"},"\/car\/demoboard\/22ad2c-5a3c2b-50fabb-324c82":{"id":"22ad2c-5a3c2b-50fabb-324c82","level":0.000000,"name":"fuelLevel","unit":"litre","uri":"\/car\/demoboard\/22ad2c-5a3c2b-50fabb-324c82"},"\/car\/demoboard\/3a3ab9-2bd52c-11d30-689acf":{"id":"3a3ab9-2bd52c-11d30-689acf","name":"engineSpeed","rpm":0.000000,"unit":"rpm","uri":"\/car\/demoboard\/3a3ab9-2bd52c-11d30-689acf"},"\/car\/demoboard\/5ae808-8093cb-99716-30a605":{"id":"5ae808-8093cb-99716-30a605","load":0.000000,"name":"engineLoad","unit":"Nm","uri":"\/car\/demoboard\/5ae808-8093cb-99716-30a605"}},"jtype":"afb-reply","request":{"status":"success","uuid":"44ce03f9-a7ca-49e1-a62a-40c74db0caa0"}}
-```
-
-As you can see for the moment all values are 0, because we didn't inject any CAN data in the binder. To do this, you can use **canplayer** to feed the bindings with some data.
-You can find an example of data in high level binding, "samples" directory.
-
-For instance, on a third terminal:
-
-```bash
-$ canplayer -I candata
-```
-
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