Controller: Converted README to a gitbook version.

-Split the README into a gitbook documentation.

Change-Id: Iacf94e94d15606d68c925885dac5233d828f29b7
Signed-off-by: CorentinLGS <corentinlgs@gmail.com>

14 files changed, 1232 insertions, 0 deletions

diff --git a/docs/README.md b/docs/README.md
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+++ b/docs/README.md
@@ -0,0 +1,19 @@
+# Introduction
+
+<br>
+<br>
+<br>
+<br>
+<br>
+
+| *Meta* | *Data* |
+| -- | -- |
+| **Title** | {{ config.title }} |
+| **Author** | {{ config.author }} |
+| **Description** | {{ config.description }} |
+| **Keywords** | {{ config.keywords }} |
+| **Language** | English |
+| **Published** | Published {{ config.published }} as an electronic book |
+| **Updated** | {{ gitbook.time }} |
+| **Collection** | Open-source |
+| **Website** | [{{ config.website }}]({{ config.website }}) |
diff --git a/docs/SUMMARY.md b/docs/SUMMARY.md
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+++ b/docs/SUMMARY.md
@@ -0,0 +1,6 @@
+# Summary
+
+* [The Controller](controller.md)
+* [Controller Configuration](controllerConfig.md)
+* [Usage](Usage.md)
+* [Config Sample](configSample.md)
\ No newline at end of file
diff --git a/docs/Usage.md b/docs/Usage.md
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+++ b/docs/Usage.md
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+# Usage
+
+## 1) Add app-controller-submodule as a submodule to include in your project
+
+```bash
+git submodule add https://gerrit.automotivelinux.org/gerrit/apps/app-controller-submodule
+```
+
+## 2) Add app-controller-submodule as a static library to your binding
+
+```cmake
+    # Library dependencies (include updates automatically)
+    TARGET_LINK_LIBRARIES(${TARGET_NAME}
+        ctl-utilities
+        ... other dependencies ....
+    )
+```
+
+## 3) Declare your controller config section in your binding
+
+```C
+// CtlSectionT syntax:
+// key: "section name in config file"
+// loadCB: callback to process section
+// handle: a void* pass to callback when processing section
+static CtlSectionT ctlSections[]= {
+    {.key="plugins" , .loadCB= PluginConfig, .handle= &halCallbacks},
+    {.key="onload"  , .loadCB= OnloadConfig},
+    {.key="halmap"  , .loadCB= MapConfigLoad},
+    {.key=NULL}
+};
+
+```
+
+## 4) Do the controller config parsing at binding pre-init
+
+```C
+   // check if config file exist
+    const char *dirList= getenv("CTL_CONFIG_PATH");
+    if (!dirList) dirList=CONTROL_CONFIG_PATH;
+
+    const char *configPath = CtlConfigSearch(apiHandle, dirList, "prefix");
+    if(!confiPath) return -1;
+
+    ctlConfig = CtlConfigLoad(dirList, ctlSections);
+    if (!ctlConfig) return -1;
+```
+
+## 5) Execute the controller config during binding init
+
+```C
+  int err = CtlConfigExec (ctlConfig);
+```
\ No newline at end of file
diff --git a/docs/_layouts/ebook/page.html b/docs/_layouts/ebook/page.html
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--- /dev/null
+++ b/docs/_layouts/ebook/page.html
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+{% extends "layout.html" %}
+
+{% block title %}{{ page.title }}{% endblock %}
+{% block description %}{{ page.description }}{% endblock %}
+
+{% block style %}
+    {### Include theme css before plugins css ###}
+    {% if not fileExists(config.styles.print) %}
+        {% if options.format %}
+        <link rel="stylesheet" href="{{ (options.format + ".css")|resolveAsset }}">
+        {% else %}
+        <link rel="stylesheet" href="{{ "ebook.css"|resolveAsset }}">
+        {% endif %}
+    {% endif %}
+
+    {{ super() }}
+
+    {### Custom stylesheets for the book ###}
+
+    {% for type, style in config.styles %}
+        {% if fileExists(style) and (type == "ebook" or type == "print" or type == options.format) %}
+        <link rel="stylesheet" href="{{ style|resolveFile }}">
+        {% endif %}
+    {% endfor %}
+{% endblock %}
+
+{% block body %}
+<div class="page">
+    {% block page %}
+        <h1 class="book-chapter book-chapter-{{ page.depth }}">{{ page.title }}</h1>
+        <div class="section">
+            {{ page.content|safe }}
+        </div>
+    {% endblock %}
+</div>
+{% endblock %}
diff --git a/docs/_layouts/ebook/pdf_footer.html b/docs/_layouts/ebook/pdf_footer.html
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--- /dev/null
+++ b/docs/_layouts/ebook/pdf_footer.html
@@ -0,0 +1,13 @@
+{% extends "./page.html" %}
+{% block body %}
+<div id="pdf-footer" class="pdf-footer">
+    <span class="footer-left">Version {{ config.version }}</span>
+    <span class="footer-right">{{ page.num }}</span>
+    <span class="footer-center">{{ config.published }}</span>
+</div>
+
+<!-- Allow to hide footer for some pages using hidepagefooters config in book.json -->
+<script>
+    if (({% for num in config.hidepagefooters %}{{ page.num }} == {{ num }} || {% endfor %}false)) document.getElementById('pdf-footer').style.display = 'none'
+</script>
+{% endblock %}
diff --git a/docs/_layouts/ebook/pdf_header.html b/docs/_layouts/ebook/pdf_header.html
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+++ b/docs/_layouts/ebook/pdf_header.html
@@ -0,0 +1,13 @@
+{% extends "./page.html" %}
+{% block body %}
+<div id="pdf-header" class="pdf-header">
+    <span class="header-left">IoT.Bzh</span>
+    <span class="header-right">{{ config.title }}</span>
+</div>
+
+<!-- Allow to hide header for some pages using hidepageheaders config in book.json -->
+<script>
+    if (({% for num in config.hidepageheaders %}{{ page.num }} == {{ num }} || {% endfor %}false)) document.getElementById('pdf-header').style.display = 'none'
+</script>
+
+{% endblock %}
\ No newline at end of file
diff --git a/docs/_layouts/ebook/summary.html b/docs/_layouts/ebook/summary.html
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+{% extends "./page.html" %}
+
+{% block title %}{{ "SUMMARY"|t }}{% endblock %}
+
+{% macro articles(_articles) %}
+    {% for article in _articles %}
+        <li>
+            <span class="inner">
+                {% if article.path or article.url %}
+                    {% if article.path %}
+                        <a href="{{ article.path|contentURL }}{{ article.anchor }}">{{ article.title }}</a>
+                    {% else %}
+                        <a target="_blank" href="{{ article.url }}">{{ article.title }}</a>
+                    {% endif %}
+                {% else %}
+                    <span>{{ article.title }}</span>
+                {% endif %}
+                {% if 1 %}
+                <span class="page">{{ article.level }}</span>
+                {% endif %}
+            </span>
+            {% if article.articles.length > 0 %}
+            <ol>
+                {{ articles(article.articles) }}
+            </ol>
+            {% endif %}
+        </li>
+    {% endfor %}
+{% endmacro %}
+
+{% block page %}
+<div class="section toc">
+    <h1>{{ "SUMMARY"|t }}</h1>
+    <ol>
+        {% for part in summary.parts %}
+            {% if part.title %}
+            <li class="part-title">
+                <h2>{{ part.title }}</h2>
+            </li>
+            {% endif %}
+            {{ articles(part.articles) }}
+
+            {% if not loop.last %}
+            <li class="divider"></li>
+            {% endif %}
+        {% endfor %}
+
+        {% if glossary.path %}
+        <li>
+            <span class="inner">
+                <a href="{{ ('/' + glossary.path)|contentURL }}">{{ "GLOSSARY"|t }}</a>
+            </span>
+        </li>
+        {% endif %}
+    </ol>
+</div>
+{% endblock %}
+
diff --git a/docs/_layouts/layout.html b/docs/_layouts/layout.html
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+++ b/docs/_layouts/layout.html
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+<!DOCTYPE HTML>
+<html lang="{{ config.language }}" {% if page.dir == "rtl" %}dir="rtl"{% endif %}>
+    <head>
+        <meta charset="UTF-8">
+        <meta content="text/html; charset=utf-8" http-equiv="Content-Type">
+        <title>{% block title %}{{ config.title|d("GitBook", true) }}{% endblock %}</title>
+        <meta http-equiv="X-UA-Compatible" content="IE=edge" />
+        <meta name="description" content="{% block description %}{% endblock %}">
+        <meta name="generator" content="GitBook {{ gitbook.version }}">
+        {% if config.author %}<meta name="author" content="{{ config.author }}">{% endif %}
+        {% if config.isbn %}<meta name="identifier" content="{{ config.isbn }}" scheme="ISBN">{% endif %}
+        {% block style %}
+            {% for resource in plugins.resources.css %}
+                {% if resource.url %}
+                <link rel="stylesheet" href="{{ resource.url }}">
+                {% else %}
+                <link rel="stylesheet" href="{{ resource.path|resolveAsset }}">
+                {% endif %}
+            {% endfor %}
+        {% endblock %}
+
+        {% block head %}{% endblock %}
+    </head>
+    <body>
+        {% block body %}{% endblock %}
+        {% block javascript %}{% endblock %}
+    </body>
+</html>
diff --git a/docs/configSample.md b/docs/configSample.md
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+# Config Sample
+
+Here after a simple configuration sample.
+
+```json
+{
+    "$schema": "http://iot.bzh/download/public/schema/json/ctl-schema.json",
+    "metadata": {
+        "uid": "sample-audio-control",
+        "api": "audio-control",
+        "info": "Provide Default Audio Policy for Multimedia, Navigation and Emergency",
+        "version": "1.0",
+        "require": ["intel-hda", "jabra-usb", "scarlett-usb"]
+    },
+    "plugins": {
+        "uid" : "MyPlug",
+        "spath":"./plugins/pluginname:../conf.d/project/lua.d",
+        "libs": ["ctl-audio-plugin-sample.ctlso", "softmixer-simple.lua"],
+        "lua": ["Lua2cHelloWorld1", "Lua2cHelloWorld2"]
+    },
+    "onload": [{
+        "uid": "onload-sample-cb",
+        "info": "Call control sharelib install entrypoint",
+        "action": "lua://MyPlug#SamplePolicyInit",
+        "args": {
+            "arg1": "first_arg",
+            "nextarg": "second arg value"
+            }
+        }, {
+        "uid": "onload-sample-api",
+        "info": "Assert AlsaCore Presence",
+        "action": "api://alsacore#ping",
+        "args": {
+            "test": "onload-sample-api"
+            }
+        }
+    ],
+    "controls":[{
+            "uid": "multimedia",
+            "privileges": "urn:AGL:permission:audio:public:mutimedia",
+            "action": "lua://MyPlug#Audio_Set_Multimedia"
+        }, {
+            "uid": "navigation",
+            "privileges": "urn:AGL:permission:audio:public:navigation",
+            "action": "lua://MyPlug#Audio_Set_Navigation"
+        }, {
+            "uid": "emergency",
+            "privileges": "urn:AGL:permission:audio:public:emergency",
+            "action": "lua://MyPlug#Audio_Set_Emergency"
+        }, {
+            "uid": "multimedia-control-cb",
+            "info": "Call Sharelib Sample Callback",
+            "action": "plugin://MyPlug#sampleControlNavigation",
+            "args": {
+                "arg1": "snoopy",
+                "arg2": "toto"
+            }
+        }, {
+            "uid": "navigation-control-ucm",
+            "action": "api://alsacore#ping",
+            "args": {
+                "test": "navigation"
+            }
+         }, {
+            "uid": "navigation-control-lua",
+            "info": "Call Lua Script to set Navigation",
+            "action": "lua://MyPlug#Audio_Set_Navigation"
+        }
+    ],
+    "events":[{
+            "uid": "speed-action-1",
+            "action": "plugin://MyPlug#Blink-when-over-130",
+            "args": {
+                "speed": 130,
+                "blink-speed": 1000
+            }
+        }, {
+            "uid": "Adjust-Volume",
+            "action": "lua://MyPlug#Adjust_Volume_To_Speed"
+        }, {
+            "uid": "Display-Rear-Camera",
+            "action": "plugin://MyPlug#Display-Rear-Camera"
+        }, {
+            "uid": "Prevent-Phone-Call",
+            "action": "api://phone#status",
+            "args": {
+                "call-accepted": "false"
+            }
+        }, {
+            "uid": "Authorize-Video",
+            "action": "api://video#status",
+            "args": {
+                "tv-accepted": "true"
+            }
+        }
+    ]
+}
+```
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diff --git a/docs/controller.md b/docs/controller.md
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+# Controller
+
+* Object: Generic Controller to handle Policy,Small Business Logic, Glue in between components, ...
+* Status: Release Candidate
+* Author: Fulup Ar Foll fulup@iot.bzh
+* Date  : May-2018
+
+## Features
+
+* Create a controller application from a JSON config file
+* Each control (eg: navigation, multimedia, ...) is a suite of actions. When all actions succeed control is granted, if one fails control access is denied.
+* Actions can either be:
+  * Invocation of an other binding API, either internal or external (eg: a policy service, Alsa UCM, ...)
+  * C routines from a user provided plugin (eg: policy routine, proprietary code, ...)
+  * Lua script function. Lua provides access to every AGL appfw functionality and can be extended by plugins written in C.
+
+## Installation
+
+* Controller can easily be included as a git submodule in any AGL service or application binder.
+* Dependencies: the only dependencies are AGL application framework (https://gerrit.automotivelinux.org/gerrit/p/src/app-framework-binder.git) and app-afb-helpers-submodule (https://gerrit.automotivelinux.org/gerrit/p/apps/app-afb-helpers-submodule.git).
+* Controller relies on Lua-5.3, when not needed Lua might be removed at compilation time.
+
+## Monitoring
+
+* The default test HTML page expect the monitoring HTML page to be accessible under /monitoring with the --monitoring option.
+* The monitoring HTML pages are installed with the app framework binder in a subdirectory called monitoring.
+* You can add other HTML pages with the alias options e.g. afb-daemon --port=1234 --monitoring --alias=/path1/to/htmlpages:/path2/to/htmlpages --ldpaths=. --workdir=. --roothttp=../htdocs
+* The monitoring is accessible at http://localhost:1234/monitoring.
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diff --git a/docs/controllerConfig.md b/docs/controllerConfig.md
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+# Controller binding configuration
+
+By default the controller searches for a config filename with the same 'middlename' as the daemon process. As an example if your process name is afb-daemon then middle name is 'daemon'. In addition, if your process name is afb-daemon-audio the middle name is also 'daemon'. Moreover the prefix is chosen when you call the [CtlConfigSearch](<#4)_Do_controller_config_parsing_at_binding_pre-init>) function, see below:
+
+```bash
+CtlConfigSearch(AFB_ApiT apiHandle, const char *dirList, const char *prefix)
+```
+
+```bash
+# Middlename is taken from process middlename.
+(prefix-)middlename*.json
+```
+
+You may overload the config search path with environment variables
+
+* **CONTROL_CONFIG_PATH**: change default reserch path for configuration. You may provide multiple directories separated by ':'.
+* **CONTROL_LUA_PATH**: same as CONTROL_CONFIG_PATH but for Lua script files.
+
+Example: to load a config named '(prefix-)myconfig-test.json' do
+
+```bash
+afb-daemon --name myconfig --verbose ...'
+```
+
+The configuration is loaded dynamically during startup time. The controller scans **CONTROL_CONFIG_PATH** for a file corresponding to the pattern
+"(prefix-)bindermiddlename*.json". The first file found in the path is loaded,
+any other file corresponding to the same path is ignored and only generates a warning.
+
+Each block in the configuration file is defined with
+
+* **uid**: mandatory, it is used either for debugging or as input for the action (eg: signal name, control name, ...)
+* **info**:  optional, it is used for documentation purpose only
+
+> **Note**: by default the controller config search path is defined at compilation time, but the path might be overloaded with the **CONTROL_CONFIG_PATH**
+> environment variable.
+
+## Config is organised in sections
+
+* **metadata**: describes the configuration
+* **plugins or resources**: defines the set of functions provided by the plugins allowing to load additionnal resources (compiled C or lua)
+* **onload**: a collection of actions meant to be executed at startup time
+* **control**: sets the controls with a collection of actions, in dynamic api it could also specify the verbs of the api
+* **event**: a collection of actions meant to be executed when receiving a given signal
+* **personnal sections**: personnal section
+
+Callbacks to parse sections are documented in [Declare your controller config section in your binding](<#3_Declare_your_controller_config_section_in_your_binding>) section. You can use the callback defined in controller or define your own callback.
+
+## Metadata
+
+As today matadata is only used for documentation purpose.
+
+* **uid**: mandatory
+* **version**: mandatory
+* **api**: mandatory
+* **info**: optional
+* **require**: optional
+* **author**: optional
+* **date**: optional
+
+## OnLoad section
+
+Onload section defines startup time configuration. Onload may provide multiple initialisation
+profiles, each with a different uid.
+
+You can define the following keys or arrays of the following keys:
+
+* **uid**: mandatory.
+* **info**: optional
+* **action**: mandatory
+* **args**: optionnal
+
+## Control section
+
+Control section defines a list of controls that are accessible.
+
+You can define the following keys or arrays of the following keys, moreover
+this section could be verb api:
+
+* **uid**: mandatory
+* **info**: optional
+* **action**: the list of actions is mandatory
+
+## Event section
+
+Event section defines a list of actions to be executed on event reception. Event can do
+anything a controller can (change state, send back signal, ...)
+eg: if a controller subscribes to vehicle speed, then speed-event may adjust
+master-volume to speed.
+
+You can define the following keys or arrays of the following keys, moreover you can define an event from an another API with the following syntax "API/event".
+
+* **uid**: mandatory
+* **info**: optional
+* **action**: the list of actions  is mandatory
+
+## Plugin section
+
+Plugin section defines plugins used with this controller. A plugin is a C/C++ program meant to
+execute some tasks after an event or on demand. This easily extends intrinsec
+binding logic for ad-hoc needs.
+
+You can define the following keys or arrays of the following keys:
+
+* **uid**: mandatory
+* **info**: optionnal
+* **spath**: optionnal, semicolon separated paths where to find the plugin. This could be a compiled shared library or LUA scripts. Could be specified using CONTROL_PLUGIN_PATH environment variable also.
+* **libs**: mandatory, Plugin file or LUA scripts to load
+* **lua**: optionnal, C functions that could be called from a LUA script
+
+## Personnal sections
+
+* **uid**: mandatory
+* **info**: optionnal
+* **action**: mandatory
+* **any keys wanted**: optionnal
+
+You can define your own sections and add your own callbacks into the
+CtlSectionT structure, see
+[Declare your controller config section in your binding](<#3_Declare_your_controller_config_section_in_your_binding>) section.
+
+## Actions Categories
+
+Controller supports three categories of actions. Each action returns a status
+where 0=success and 1=failure.
+
+* **AppFw API** provides a generic model to request other bindings. Requested bindings can be local (eg: ALSA/UCM) or external (eg: vehicle signalling).
+  * `"action": "api://API_NAME#verb_name"`
+* C-API, when defined in the onload section, the plugin may provide C native API with `CTLP-CAPI(apiname, uid, args, query, context)`. Plugin may also create Lua command with `CTLP-LUA2C(LuaFuncName, uid, args, query, context)`. Where `args`+`query` are JSON-C object and context is the returned value from `CTLP_ONLOAD` function. Any missing value is set to NULL.
+  * `"action": "plugin://plugin_name#function_name"`
+* Lua-API, when compiled with Lua option, the controller supports action defined directly in Lua script. During "*onload*" phase, the controller searches in `CONTROL_LUA_PATH` file with pattern "(prefix-)bindermiddlename*.lua". Any file corresponding to this pattern is automatically loaded. Any function defined in those Lua scripts can be called through a controller action. Lua functions receive three parameters (uid, args, query).
+  * `"action": "lua://plugin_name#function_name"`
+
+You also can add the **privileges** property that handles AGL permission
+needed to be able to call this action.
+
+> **Note**: Lua added functions are systematically prefixed. AGL standard AppFw
+functions are prefixed with AGL: (eg: AFB:notice(), AFB:success(), ...).
+> User Lua functions added through the plugin and CTLP_LUA2C are prefixed with
+the plugin uid or the one you defined in your config (eg: MyPlug:HelloWorld1).
+
+## Available Application Framework Commands
+
+Each Lua AppFw commands should be prefixed by AFB:
+
+* `AFB:notice ("format", arg1,... argn)` directly printed LUA tables as json string with '%s'.
+   `AFB:error`, `AFB:warning`, `AFB:info`, `AFB:debug` work on the same model. Printed messages are limited to 512 characters.
+
+* `AFB:service ('API', 'VERB', {query}, "Lua_Callback_Name", {context})` is an asynchronous call to another binding. When empty, query/context should be set to '{}'
+   and not to 'nil'. When 'nil', Lua does not send 'NULL' value but removes arguments to calling stack. WARNING:"Callback"
+   is the name of the callback as a string and not a pointer to the callback. (If someone as a solution to fix this, please
+   let me known). Callback is call as LUA "function Alsa_Get_Hal_CB (error, result, context)" where:
+  * error is a Boolean
+  * result is the full answer from AppFw (do not forget to extract the response)
+  * context is a copy of the Lua table pass as an argument (warning it's a copy not a pointer to original table)
+
+* `error,result=AFB:servsync('API', 'VERB', {query})` is saved as previous but for synchronous call. Note that Lua accepts multiple
+   returns. AFB:servsync returns both the error message and the response as a Lua table. Like for AFB:service, the user should not
+   forget to extract response from result.
+
+* `AFB:success(request, response)` is the success request. request is the opaque handle passes when Lua is called from (api="control", verb="docall").
+   Response is a Lua table that will be returned to the client.
+
+* `AFB:fail(request, response)` is the same as for success. Note that LUA generates automatically the error code from Lua function name.
+   The response is transformed into a json string before being returned to the client.
+
+* `EventHandle=AFB:evtmake("MyEventName")` creates an event and returns the handle as an opaque handle. Note that due to a limitation
+   of json_object, this opaque handle cannot be passed as an argument in a callback context.
+
+* `AFB:subscribe(request, MyEventHandle)` subscribes a given client to a previously created event.
+
+* `AFB:evtpush (MyEventHandle, MyEventData)` pushes an event to every subscribed client. MyEventData is a Lua table that will be
+   sent as a json object to the corresponding clients.
+
+* `timerHandle=AFB:timerset (MyTimer, "Timer_Test_CB", context)` initialises a timer from MyTimer Lua table. This table should contains 3 elements:
+   MyTimer={[l"abel"]="MyTimerName", ["delay"]=timeoutInMs, ["count"]=nBOfCycles}. Note that if count==0 then timer is cycled
+   infinitely. Context is a standard Lua table. This function returns an opaque handle to be used to further control the timer.
+
+* `AFB:timerclear(timerHandle)` kills an existing timer. Returns an error when timer does not exit.
+
+* `MyTimer=AFB:timerget(timerHandle)` returns uid, delay and count of an active timer. Returns an error when timerHandle does not
+   point on an active timer.
+
+* `AFB:GetEventLoop()` retrieves the common systemd's event loop of AFB.
+
+* `AFB:RootDirGetFD()` gets the root directory file descriptor. This file descriptor can be used with functions 'openat', 'fstatat', ...
+
+> **Note**: Except for functions call during binding initialisation period. Lua calls are protected and should returned clean messages
+> even when they are improperly used. If you find bug please report.
+
+## Adding Lua command from User Plugin
+
+User Plugin is optional and may provide either native C-action accessible directly from controller actions as defined in
+JSON config file, or alternatively may provide a set of Lua commands usable inside any script (onload, control,event). A simple
+plugin that provides both notice C API and Lua commands is provided as example (see ctl-plugin-sample.c). Technically a
+plugin is a simple sharelibrary and any code fitting in sharelib might be used as a plugin. Developer should nevertheless
+not forget that except when no-concurrency flag was at binding construction time, any binding should to be thread safe.
+
+A plugin must be declared with `CTLP_REGISTER("MyCtlSamplePlugin")`. This entry point defines a special structure that is checked
+at plugin load time by the controller. Then you have an optional init routine declare with `CTLP_ONLOAD(plugin, handle)`.
+ The init routine may create
+a plugin context that is later presented to every plugin API, this for both LUA and native C ones. Then each:
+
+* C API declare with `CTLP_CAPI(MyCFunction, source, argsJ, queryJ) {your code}`. Where:
+  * **MyFunction** is your function
+  * **source** is the structure config
+  * **argsJ** a json_object containing the argument attaches to this control in JSON config file
+  * **queryJ** a json_object
+
+* Lua API declare with `CTLP_LUA2C(MyLuaCFunction, source, argsJ, responseJ) {your code}`. Where
+  * **MyLuaCFunction** is both the name of your C function and Lua command
+  * **source** is the structure config
+  * **argsJ** the arguments passed this time from Lua script and not from Json config file.
+  * **responseJ** if success the argument is passed into the request.
+
+> **Warning**: Lua samples use with controller enforce strict mode. As a result every variable should be declared either as
+> local or as global. Unfortunately "luac" is not smart enough to handle strict mode at build time and errors only appear
+> at run time. Because of this strict mode every global variables (which include functions) should be prefixed by '_'.
+> Note that LUA requires an initialisation value for every variables and declaring something like "local myvar" will not
+> allocate "myvar".
+
+## Debugging Facilities
+
+Controller Lua scripts are checked for syntax from CMAKE template with Luac. When needed to go further, a developer API should be allowed to
+execute directly Lua commands within the controller context from Rest/Ws (api=control, verb=lua_doscript). DoScript API takes two
+other optional arguments func=xxxx where xxxx is the function to execute within Lua script and args, a JSON object to provide
+input parameters. When funcname is not given by default, the controller tries to execute middle filename doscript-xxxx-????.lua.
+
+When executed from the controller, Lua script may use any AppFw Apis as well as any L2C user defines commands in plugin.
+
+## Running as Standalone Controller
+
+The controller is a standard binding. It can be started with the following command:
+
+```bash
+afb-daemon --name=yourname --port=1234 --workdir=. --roothttp=./htdocs --tracereq=common --token= --verbose --binding=pathtoyourbinding.so --monitoring
+```
+
+Afb-Daemon only loads controller bindings without searching for the other
+binding. In this case, the controller binding will search for a configuration file
+name '(prefix-)bindermiddlename*.json'. This model can be used to implement for testing
+purpose or simply to act as the glue between a UI and other binder/services.
\ No newline at end of file
diff --git a/docs/resources/cover.svg b/docs/resources/cover.svg
new file mode 100644
index 0000000..6726de7
--- /dev/null
+++ b/docs/resources/cover.svg
@@ -0,0 +1,210 @@
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+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
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+   height="2360"
+   viewBox="0 0 1800 2360"
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+   version="1.1"
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+      <feComposite
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+         in="SourceGraphic"
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+       inkscape:label="Drop Shadow">
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+         id="feComposite4004-6"
+         in2="SourceGraphic"
+         in="flood"
+         operator="in"
+         result="composite1" />
+      <feGaussianBlur
+         id="feGaussianBlur4006-2"
+         stdDeviation="5"
+         result="blur" />
+      <feOffset
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+         dx="8"
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+  <sodipodi:namedview
+     id="base"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageopacity="0.0"
+     inkscape:pageshadow="2"
+     inkscape:zoom="0.24748737"
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+     inkscape:document-units="px"
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+     showgrid="false"
+     inkscape:snap-text-baseline="false"
+     units="px"
+     inkscape:window-width="1920"
+     inkscape:window-height="1171"
+     inkscape:window-x="1920"
+     inkscape:window-y="0"
+     inkscape:window-maximized="1"
+     showguides="false" />
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+     id="metadata7">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
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+    </rdf:RDF>
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+  <g
+     inkscape:label="Layer 1"
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+       inkscape:export-filename="/home/sdx/Pictures/Logo/logo_iot_bzh_100dpi.png"
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+         sodipodi:linespacing="125%"
+         id="text3557-5-3-7-0-7-3"
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+         xml:space="preserve"><tspan
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diff --git a/docs/resources/ebook.css b/docs/resources/ebook.css
new file mode 100644
index 0000000..e8df4d8
--- /dev/null
+++ b/docs/resources/ebook.css
@@ -0,0 +1,402 @@
+/* IoT.Bzh theaming */
+
+h1 {
+    color: #330066;
+    border-bottom: 2px solid #330066;
+}
+
+h2 {
+    color: #330066;
+}
+
+h3 {
+    color: #330066;
+}
+
+h4 {
+    color: #330066;
+}
+
+
+/* GENERAL ELEMENTS */
+
+/* clear both */
+
+.clear {
+    clear: both;
+}
+
+.section> :last-child {
+    margin-bottom: 0 !important;
+}
+
+.section> :first-child {
+    margin-top: 0 !important;
+}
+
+
+/* SPECIAL ELEMENTS */
+
+
+/* page break always after element on pdf/print definition */
+
+div.pagebreak {
+    page-break-after: always;
+}
+
+
+/* no page break inside element on pdf/print definition */
+
+div.nopb {
+    page-break-inside: avoid !important;
+    margin: 4px 0 4px 0;
+}
+
+
+/* note blocks */
+
+div.note {
+    background: #FCF8E3 none repeat scroll 0% 0%;
+    color: #8A6D3B;
+    padding: 15px;
+    margin-bottom: 10px;
+    border-bottom: 5px solid #DDD;
+    border-color: #FAEBCC;
+    page-break-inside: avoid;
+}
+
+div.note p {
+    padding-bottom: 0;
+    margin-bottom: 0;
+}
+
+/* warning blocks */
+
+div.warning {
+    background: #FD9595 none repeat scroll 0% 0%;
+    color: #8A6D3B;
+    padding: 15px;
+    margin-bottom: 10px;
+    border-bottom: 5px solid #DDD;
+    border-color: #FF6B6B;
+    page-break-inside: avoid;
+}
+
+div.warning p {
+    padding-bottom: 0;
+    margin-bottom: 0;
+}
+
+/* images, figures and captions */
+
+p img {
+    /* center all images */
+    display: block;
+    margin: 0 auto;
+    padding: 10px 0;
+}
+
+figure {
+    margin: 1.0em 0px;
+    padding: 10px 0;
+    text-align: center;
+    page-break-inside: avoid;
+    display: block;
+}
+
+figure img {
+    display: block;
+    margin: 0 auto;
+}
+
+figcaption {
+    clear: left;
+    margin: 1.0em 0 0 0;
+    text-align: center;
+    font-style: italic;
+    line-height: 1.5em;
+    font-size: 80%;
+    color: #666;
+    display: block;
+}
+
+.page .section p img {
+    margin-top: 10px;
+}
+
+
+/* ul, ol list margin fix */
+
+.page .section ol,
+.page .section ul {
+    margin-bottom: 10px;
+}
+
+
+/* blockquotes */
+
+.page .section blockquote {
+    margin: 0 0 0 5%;
+    font-style: italic;
+}
+
+
+/* PAGE SPECIFIC */
+
+
+/* set summary page to right side of the paper */
+
+.page .toc h1 {
+    page-break-before: right;
+}
+
+.page .section.toc {
+    page-break-inside: always;
+}
+
+/* table headers */
+
+div#README\.md table {
+    margin-top: 30px;
+    font-size: 95%;
+}
+
+div#README\.md table thead {
+    display: none;
+}
+
+
+
+/* CITATION AND IMAGES */
+
+
+/* math image styles */
+
+.page .section p img.svg,
+.page .section p img.png {
+    margin-top: 0px;
+    margin-bottom: -2px;
+}
+
+.page .section p img.math {
+    vertical-align: middle;
+    height: auto;
+    width: auto;
+    margin-top: -4px;
+    max-height: 15px;
+}
+
+.page .section p img.math.line1 {
+    margin-top: -7px;
+    max-height: 19px;
+}
+
+.page .section p img.math.line2 {
+    margin-top: -1px;
+    max-height: 30px;
+}
+
+
+/* credits page */
+
+.page .section ul.pictures {
+    margin-left: -30px;
+}
+
+.page .section ul.pictures li {
+    list-style: outside none none;
+}
+
+.page .section ul.pictures li a {
+    float: left;
+}
+
+.page .section ul.pictures li span {
+    display: block;
+    margin-left: 100px;
+}
+
+
+
+/* sub and super script */
+
+.page .section sub {
+    font-size: 80%;
+    margin-left: 1px;
+}
+
+
+/* citations and references */
+
+.page .section sup {
+    margin-left: -1px;
+    margin-right: 2px;
+    font-size: 80%;
+}
+
+.page .section sup:before {
+    content: " ";
+}
+
+.page .section ul.citations,
+.page .section ul.references {
+    margin-left: -30px;
+}
+
+
+.page .section ul.citations li:nth-child(1) {
+    margin-top: 20px;
+    padding-top: 20px;
+    border-top: 1px solid #BBB;
+}
+
+.page .section ul.citations li,
+.page .section ul.references li {
+    list-style: outside none none;
+}
+
+.page .section ul.citations li {
+    font-size: 80%;
+}
+
+.page .section ul.citations li>span:nth-child(1),
+.page .section ul.references li>span:nth-child(1) {
+    display: block;
+    float: left;
+    text-align: left;
+    width: 70px
+}
+
+.page .section ul.citations li>span:nth-child(1) {
+    width: 50px
+}
+
+.page .section ul.references li div {
+    margin-left: 70px;
+}
+
+.page .section ul.citations li div {
+    margin-left: 50px;
+}
+
+.page .section a[href="#"],
+.page .section a[href="#"]:link,
+.page .section a[href="#"]:visited,
+.page .section a[href="#"]:hover,
+.page .section a[href="#"]:focus {
+    text-decoration: none;
+    color: inherit;
+    cursor: text;
+    font-style: italic;
+}
+
+
+/* self referential footnotes */
+
+.page .section div[type="selfref"] a[href="#"],
+.page .section div[type="selfref"] a[href="#"]:link,
+.page .section div[type="selfref"] a[href="#"]:visited,
+.page .section div[type="selfref"] a[href="#"]:hover,
+.page .section div[type="selfref"] a[href="#"]:focus {
+    font-style: normal;
+}
+
+.page .section div[type="selfref"] span:nth-child(1) {
+    display: none;
+}
+
+
+/* page break always after element on pdf/print definition */
+
+div.page-break {
+    page-break-inside: always;
+}
+
+div.page-break:before {
+    content: ' ';
+}
+
+
+/* no page break inside element on pdf/print definition */
+
+div.nopb {
+    page-break-inside: avoid;
+}
+
+/* justify text */
+p {
+    text-align: justify;
+}
+
+/* page header and footer */
+
+.pdf-footer,
+.pdf-header {
+    margin-top: 20px;
+    color: #aaa;
+}
+
+.pdf-header .header-left {
+    float: left;
+    margin-left: 2em;
+    margin-right: auto;
+}
+
+.pdf-header .header-right {
+    display: table;
+    margin-left: auto;
+    margin-right: 2em;
+}
+
+.pdf-footer .sub {
+    padding-top: 8px;
+    font-size: 70%;
+}
+
+.pdf-header .sub {
+    padding-top: 2px;
+    font-size: 70%;
+}
+
+.pdf-footer {
+    padding-top: 10px;
+    border-top: 1px solid #eee;
+}
+
+.pdf-footer .footer-left {
+    float: left;
+    margin-left: 2em;
+    margin-right: auto;
+}
+
+.pdf-footer .footer-center {
+    display: table;
+    margin-left: auto;
+    margin-right: auto;
+}
+
+.pdf-footer .footer-right {
+    float: right;
+    margin-left: auto;
+    margin-right: 2em;
+}
+
+.pdf-header {
+    padding-bottom: 10px;
+    border-bottom: 1px solid #eee;
+}
+
+.pdf-header .header-pages-count {
+    float: right;
+    text-align: right;
+}
+
+.pdf-header .header-pages-count a,
+.pdf-header .header-pages-count a:visited,
+.pdf-header .header-pages-count a:active,
+.pdf-header .header-pages-count a:focus,
+.pdf-header .header-pages-count a:link {
+    text-decoration: none;
+    color: #aaa;
+    cursor: text;
+}
diff --git a/docs/resources/make_cover.sh b/docs/resources/make_cover.sh
new file mode 100755
index 0000000..1026ecb
--- /dev/null
+++ b/docs/resources/make_cover.sh
@@ -0,0 +1,27 @@
+#!/bin/bash
+DOCS_DIR=$(cd $(dirname $0)/.. && pwd)
+BOOKFILE=$DOCS_DIR/../book.json
+
+TITLE=$(grep  '"title":' $BOOKFILE | cut -d'"' -f 4)
+SUBTITLE=$(grep  '"subtitle":' $BOOKFILE | cut -d'"' -f 4)
+VERSION="Version $(grep  '"version":' $BOOKFILE | cut -d'"' -f 4)"
+DATE=$(grep  '"published":' $BOOKFILE | cut -d'"' -f 4)
+
+[ -z "$TITLE" ] && { echo "Error TITLE not set!" ; exit 1; }
+[ -z "$VERSION" ] && { echo "Error VERSION not set!" ; exit 1; }
+[ -z "$DATE" ] && { echo "Error DATE not set!" ; exit 1; }
+
+
+cat $(dirname $0)/cover.svg | sed -e "s/{title}/$TITLE/g" \
+    -e "s/font-size:87.5px/font-size:54px/g" \
+    -e "s/{subtitle}/$SUBTITLE/g" \
+    -e "s/font-size:62.5px/font-size:40px/g" \
+    -e "s/{version}/$VERSION/g" \
+    -e "s/{date}/$DATE/g" \
+    > /tmp/cover.svg
+
+# use  imagemagick convert tool  (cover size must be 1800x2360)
+convert -resize "1600x2160!" -border 100 -bordercolor white -background white \
+    -flatten -quality 100 /tmp/cover.svg $DOCS_DIR/cover.jpg
+
+convert -resize "200x262!" $DOCS_DIR/cover.jpg $DOCS_DIR/cover_small.jpg