create dynamic attributes with MagnetNames property

TODO

-- add the possibilty of creating many dynamic attributes with a simple configuration Useful for handling the whole simulator with  a single server, like in the real case
-- usro un dictiory (map) per salvare i valor accanto al nome dell' attributo.
-Useroò un poroerty per la lista dei nomi degli attributi
+- configure the MagnetNames property with real E2.0 magnet (sextupole) names

src/Simulatede2BbaSwitch.py

@@ -23,6 +23,7 @@ from tango import DebugIt
 from tango.server import run
 from tango.server import Device
 from tango.server import attribute, command
+from tango.server import device_property
 from tango import AttrQuality, DispLevel, DevState
 from tango import AttrWriteType, PipeWriteType
 # Additional import
@@ -36,15 +37,50 @@ class Simulatede2BbaSwitch(Device):
     """
     Simple boolen r/w variable.
     The real thing will be a boolen attribute expoter by the Tango MPS interface
+
+    **Properties:**
+
+    - Device Property
+        MagnetNames
+            - name of magnets with a BBA switch
+            - Type:'DevVarStringArray'
     """
     # PROTECTED REGION ID(Simulatede2BbaSwitch.class_variable) ENABLED START #
+    def add_attr(self, name):
+        attr = tango.Attr(name, tango.DevBoolean, tango.READ_WRITE)
+        self.add_attribute(attr, self.read_general, self.write_general)
+        self._dynamic_attrs[name] = False
+        dev_m_attr = self.get_device_attr()
+        wattr = dev_m_attr.get_w_attr_by_name(name)
+        wattr.set_write_value(False)
+        
+    def read_general(self, attr):
+        name = attr.get_name()
+        self.debug_stream("Reading attribute %s", name)
+        attr.set_value(self._dynamic_attrs[name])
+        
+    def write_general(self, attr):
+        name = attr.get_name()
+        data = attr.get_write_value()
+        self._dynamic_attrs[name] = data
+        self.debug_stream("Writing into attribute %s the value %s", name, data)
     # PROTECTED REGION END #    //  Simulatede2BbaSwitch.class_variable
 
+    # -----------------
+    # Device Properties
+    # -----------------
+
+    MagnetNames = device_property(
+        dtype='DevVarStringArray',
+        doc="name of magnets with a BBA switch",
+        mandatory=True
+    )
+
     # ----------
     # Attributes
     # ----------
 
-    enable = attribute(
+    generic = attribute(
         dtype='DevBoolean',
         access=AttrWriteType.READ_WRITE,
         label="bba enable",
@@ -58,13 +94,20 @@ class Simulatede2BbaSwitch(Device):
     def init_device(self):
         """Initializes the attributes and properties of the Simulatede2BbaSwitch."""
         Device.init_device(self)
-        self._enable = False
+        self._generic = False
         # PROTECTED REGION ID(Simulatede2BbaSwitch.init_device) ENABLED START #
         dev_m_attr = self.get_device_attr()
-        wattr = dev_m_attr.get_w_attr_by_name("enable")
+        wattr = dev_m_attr.get_w_attr_by_name("generic")
         wattr.set_write_value(False)
         self.set_state(tango.DevState.ON)
         self.set_status("MPS BBA switches ready")
+        
+        
+        
+        # add dyn attributes
+        self._dynamic_attrs = {}
+        for magname in self.MagnetNames:
+            self.add_attr(magname)
         # PROTECTED REGION END #    //  Simulatede2BbaSwitch.init_device
 
     def always_executed_hook(self):
@@ -86,16 +129,16 @@ class Simulatede2BbaSwitch(Device):
     # Attributes methods
     # ------------------
 
-    def read_enable(self):
-        # PROTECTED REGION ID(Simulatede2BbaSwitch.enable_read) ENABLED START #
-        """Return the enable attribute."""
-        return self._enable
-        # PROTECTED REGION END #    //  Simulatede2BbaSwitch.enable_read
-    def write_enable(self, value):
-        # PROTECTED REGION ID(Simulatede2BbaSwitch.enable_write) ENABLED START #
-        """Set the enable attribute."""
-        self._enable = value
-        # PROTECTED REGION END #    //  Simulatede2BbaSwitch.enable_write
+    def read_generic(self):
+        # PROTECTED REGION ID(Simulatede2BbaSwitch.generic_read) ENABLED START #
+        """Return the generic attribute."""
+        return self._generic
+        # PROTECTED REGION END #    //  Simulatede2BbaSwitch.generic_read
+    def write_generic(self, value):
+        # PROTECTED REGION ID(Simulatede2BbaSwitch.generic_write) ENABLED START #
+        """Set the generic attribute."""
+        pass
+        # PROTECTED REGION END #    //  Simulatede2BbaSwitch.generic_write
     # --------
     # Commands
     # --------

src/Simulatede2BbaSwitch.xmi

 <?xml version="1.0" encoding="ASCII"?>
 <pogoDsl:PogoSystem xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:pogoDsl="http://tango.org/pogo/PogoDsl">
   <classes name="Simulatede2BbaSwitch" pogoRevision="9.9">
-    <description description="Simple boolen r/w variable.&#xA;The real thing will be a boolen attribute expoter by the Tango MPS interface" title="Simulatede2BbaSwitch" sourcePath="/home/claudio/src/gitlab/dt/ds/simulatede2bbaswitch/src" language="PythonHL" filestogenerate="XMI   file,Code files,Protected Regions" license="GPL" copyright="Elettra - Sincrotrone Trieste S.C.p.A." hasMandatoryProperty="false" hasConcreteProperty="false" hasAbstractCommand="false" hasAbstractAttribute="false">
+    <description description="Simple boolen r/w variable.&#xA;The real thing will be a boolen attribute expoter by the Tango MPS interface" title="Simulatede2BbaSwitch" sourcePath="/home/claudio/src/gitlab/dt/ds/simulatede2bbaswitch/src" language="PythonHL" filestogenerate="XMI   file,Code files,Protected Regions" license="GPL" copyright="Elettra - Sincrotrone Trieste S.C.p.A." hasMandatoryProperty="true" hasConcreteProperty="true" hasAbstractCommand="false" hasAbstractAttribute="false">
       <inheritances classname="Device_Impl" sourcePath=""/>
       <identification contact="at elettra.eu - claudio.scafuri" author="claudio.scafuri" emailDomain="elettra.eu" classFamily="Simulators" siteSpecific="" platform="All Platforms" bus="Not Applicable" manufacturer="none" reference="">
         <keyWords>simulator</keyWords>
         <keyWords>Eelttra 2.0</keyWords>
       </identification>
     </description>
+    <deviceProperties name="MagnetNames" mandatory="true" description="name of magnets with a BBA switch">
+      <type xsi:type="pogoDsl:StringVectorType"/>
+      <status abstract="false" inherited="false" concrete="true" concreteHere="true"/>
+    </deviceProperties>
     <commands name="State" description="This command gets the device state (stored in its device_state data member) and returns it to the caller." execMethod="dev_state" displayLevel="OPERATOR" polledPeriod="0">
       <argin description="none">
         <type xsi:type="pogoDsl:VoidType"/>
@@ -26,7 +30,7 @@
       </argout>
       <status abstract="true" inherited="true" concrete="true"/>
     </commands>
-    <attributes name="enable" attType="Scalar" rwType="READ_WRITE" displayLevel="OPERATOR" polledPeriod="0" maxX="" maxY="" allocReadMember="true" isDynamic="false">
+    <attributes name="generic" attType="Scalar" rwType="READ_WRITE" displayLevel="OPERATOR" polledPeriod="0" maxX="" maxY="" allocReadMember="true" isDynamic="false">
       <dataType xsi:type="pogoDsl:BooleanType"/>
       <changeEvent fire="false" libCheckCriteria="false"/>
       <archiveEvent fire="false" libCheckCriteria="false"/>