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-rw-r--r--docs/part-1/3-Plugins.md11
-rw-r--r--docs/part-1/4-SignalComposerAPI.md16
2 files changed, 26 insertions, 1 deletions
diff --git a/docs/part-1/3-Plugins.md b/docs/part-1/3-Plugins.md
index cbc7284..50ece7b 100644
--- a/docs/part-1/3-Plugins.md
+++ b/docs/part-1/3-Plugins.md
@@ -1,6 +1,15 @@
# Plugins
-Plugins are C/C++ shared library that is loaded by the binding to execute some
+Plugins are C/C++ shared library loaded by the binding to execute some
simple routine. Routine could be on reception of a new signal or at sources
initialization time or signal subscription with the respective JSON field
**onReceived**, **init** and **getSignals**.
+
+A default plugin (builtin) is provided with 2 functions:
+
+- **defaultOnReceived**: set and record a new signal value and its timestamp
+ in the signal composer service. It simply tooks the incoming event JSON object
+ and search for *key* **value** and **timestamp** then call function
+ `setSignalValue`.
+- **setSignalValueWrap**: a **lua2c** function the could be called from any LUA
+ script to record a new signal value.
diff --git a/docs/part-1/4-SignalComposerAPI.md b/docs/part-1/4-SignalComposerAPI.md
index dc47f01..246b62f 100644
--- a/docs/part-1/4-SignalComposerAPI.md
+++ b/docs/part-1/4-SignalComposerAPI.md
@@ -19,6 +19,22 @@ ON-EVENT signal-composer/257b343e-8ea9-4cd7-8f9e-1904fa77f8f2({"event":"signal-c
Unsubscribe happens the same way. When no more signals are holded by the client
then it unsubscribe from the *AGL Application Framework* event handle.
+## addObjects
+
+Let you add sources or signals objects to the signal composer service after
+its initialization phase. Use this verb and specify the file as argument, you
+could use only the file name or the file name with its absolute path.
+
+```json
+signal-composer addObjects {"file": "sig_doors.json"}
+ON-REPLY 1:signal-composer/addObjects: {"jtype":"afb-reply","request":{"status":"success","uuid":"00d7a519-816e-486a-8163-3afb1face4fa"}}
+signal-composer addObjects {"file": "/tmp/sig_doors.json"}
+ON-REPLY 2:signal-composer/addObjects: {"jtype":"afb-reply","request":{"status":"success"}}
+```
+
+You can follow the activity using the service log journal and check that the
+correct number of objects has been added.
+
## get
You can get a signal value be requesting the API with the verb *get*: