Migrated `mcp3008` integration to the new `SensorPlugin` API.

platypush/backend/sensor/mcp3008/__init__.py

@@ -1,28 +0,0 @@
-from platypush.backend.sensor import SensorBackend
-
-
-class SensorMcp3008Backend(SensorBackend):
-    """
-    Backend to poll analog sensor values from an MCP3008 chipset
-    (https://learn.adafruit.com/raspberry-pi-analog-to-digital-converters/mcp3008)
-
-    Requires:
-
-        * ``adafruit-mcp3008`` (``pip install adafruit-mcp3008``)
-        * The :mod:`platypush.plugins.gpio.sensor.mcp3008` plugin configured
-
-    Triggers:
-
-        * :class:`platypush.message.event.sensor.SensorDataChangeEvent` if the measurements of a sensor have changed
-        * :class:`platypush.message.event.sensor.SensorDataAboveThresholdEvent` if the measurements of a sensor have
-            gone above a configured threshold
-        * :class:`platypush.message.event.sensor.SensorDataBelowThresholdEvent` if the measurements of a sensor have
-            gone below a configured threshold
-
-    """
-
-    def __init__(self, **kwargs):
-        super().__init__(plugin='gpio.sensor.mcp3008', **kwargs)
-
-
-# vim:sw=4:ts=4:et:

platypush/backend/sensor/mcp3008/manifest.yaml

@@ -1,13 +0,0 @@
-manifest:
-  events:
-    platypush.message.event.sensor.SensorDataAboveThresholdEvent: if the measurements
-      of a sensor havegone above a configured threshold
-    platypush.message.event.sensor.SensorDataBelowThresholdEvent: if the measurements
-      of a sensor havegone below a configured threshold
-    platypush.message.event.sensor.SensorDataChangeEvent: if the measurements of a
-      sensor have changed
-  install:
-    pip:
-    - adafruit-mcp3008
-  package: platypush.backend.sensor.mcp3008
-  type: backend

platypush/plugins/gpio/sensor/mcp3008/manifest.yaml

@@ -1,7 +0,0 @@
-manifest:
-  events: {}
-  install:
-    pip:
-    - adafruit-mcp3008
-  package: platypush.plugins.gpio.sensor.mcp3008
-  type: plugin

platypush/plugins/sensor/mcp3008/__init__.py

@@ -1,15 +1,25 @@
 import enum
+from typing import Dict, List
+from typing_extensions import override
 
+from platypush.common.sensors import Numeric
+from platypush.entities.devices import Device
+from platypush.entities.sensors import NumericSensor
 from platypush.plugins import action
-from platypush.plugins.gpio.sensor import GpioSensorPlugin
+from platypush.plugins.sensor import SensorPlugin
 
 
 class MCP3008Mode(enum.Enum):
+    """
+    MPC3008 mode enum (``hardware`` or ``software``).
+    """
+
     SOFTWARE = 'software'
     HARDWARE = 'hardware'
 
 
-class GpioSensorMcp3008Plugin(GpioSensorPlugin):
+# pylint: disable=too-many-ancestors
+class GpioSensorMcp3008Plugin(SensorPlugin):
     """
     Plugin to read analog sensor values from an MCP3008 chipset.  The MCP3008
     chipset is a circuit that allows you to read measurements from multiple
@@ -21,13 +31,30 @@ class GpioSensorMcp3008Plugin(GpioSensorPlugin):
     Requires:
 
         * ``adafruit-mcp3008`` (``pip install adafruit-mcp3008``)
+
+    Triggers:
+
+        * :class:`platypush.message.event.sensor.SensorDataAboveThresholdEvent`
+        * :class:`platypush.message.event.sensor.SensorDataBelowThresholdEvent`
+        * :class:`platypush.message.event.sensor.SensorDataChangeEvent`
+
     """
 
     N_CHANNELS = 8
 
     # noinspection PyPep8Naming
-    def __init__(self, CLK=None, MISO=None, MOSI=None, CS=None, spi_port=None,
+    def __init__(
-                 spi_device=None, channels=None, Vdd=3.3, **kwargs):
+        self,
+        CLK=None,
+        MISO=None,
+        MOSI=None,
+        CS=None,
+        spi_port=None,
+        spi_device=None,
+        channels=None,
+        Vdd=3.3,
+        **kwargs,
+    ):
         """
         The MCP3008 can be connected in two modes:
 
@@ -97,9 +124,11 @@ class GpioSensorMcp3008Plugin(GpioSensorPlugin):
             self.spi_device = spi_device
             self.mode = MCP3008Mode.HARDWARE
         else:
-            raise RuntimeError("At least one mode must be specified.\n" +
+            raise RuntimeError(
-                               "Software SPI: Specify CLK, MISO, MOSI and CS pins\n" +
+                "At least one mode must be specified.\n"
-                               "Hardware SPI: Specify spi_port and spi_device\n")
+                + "Software SPI: Specify CLK, MISO, MOSI and CS pins\n"
+                + "Hardware SPI: Specify spi_port and spi_device\n"
+            )
 
         self.Vdd = Vdd
         self.channels = channels if channels else {}
@@ -110,18 +139,22 @@ class GpioSensorMcp3008Plugin(GpioSensorPlugin):
         import Adafruit_MCP3008
 
         if self.mode == MCP3008Mode.SOFTWARE:
-            self.mcp = Adafruit_MCP3008.MCP3008(clk=self.CLK, cs=self.CS,
+            self.mcp = Adafruit_MCP3008.MCP3008(
-                                                miso=self.MISO, mosi=self.MOSI)
+                clk=self.CLK, cs=self.CS, miso=self.MISO, mosi=self.MOSI
+            )
         elif self.mode == MCP3008Mode.HARDWARE:
-            self.mcp = Adafruit_MCP3008.MCP3008(spi=SPI.SpiDev(self.spi_port, self.spi_device))
+            self.mcp = Adafruit_MCP3008.MCP3008(
+                spi=SPI.SpiDev(self.spi_port, self.spi_device)
+            )
         else:
-            raise RuntimeError('Unsupported MCP3008 mode: {}'.format(self.mode))
+            raise RuntimeError(f'Unsupported MCP3008 mode: {self.mode}')
 
         return self.mcp
 
     def _convert_to_voltage(self, value):
         return (value * self.Vdd) / 1023.0 if value is not None else None
 
+    @override
     @action
     def get_measurement(self):
         """
@@ -155,8 +188,7 @@ class GpioSensorMcp3008Plugin(GpioSensorPlugin):
                 if i in self.channels:
                     channel = self.channels[i]
                     if 'conv_function' in channel:
-                        # noinspection PyUnusedLocal
+                        x = value  # noqa
-                        x = value  # lgtm [py/unused-local-variable]
                         value = eval(channel['conv_function'])
 
                     values[channel['name']] = value
@@ -165,5 +197,22 @@ class GpioSensorMcp3008Plugin(GpioSensorPlugin):
 
         return values
 
+    @override
+    def transform_entities(self, entities: Dict[str, Numeric]) -> List[Device]:
+        return [
+            Device(
+                id='mcp3008',
+                name='MCP3008',
+                children=[
+                    NumericSensor(
+                        id=f'mcp3008:{key}',
+                        name=key,
+                        value=value,
+                    )
+                    for key, value in entities.items()
+                ],
+            )
+        ]
+
 
 # vim:sw=4:ts=4:et:

platypush/plugins/sensor/mcp3008/manifest.yaml

@@ -0,0 +1,10 @@
+manifest:
+  events:
+    platypush.message.event.sensor.SensorDataAboveThresholdEvent:
+    platypush.message.event.sensor.SensorDataBelowThresholdEvent:
+    platypush.message.event.sensor.SensorDataChangeEvent:
+  install:
+    pip:
+    - adafruit-mcp3008
+  package: platypush.plugins.sensor.mcp3008
+  type: plugin