Added dummy plugin for simulated sensors

plugins/hal-dummy/build.gradle

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+dependencies {
+    implementation project(':hal-core')
+}

plugins/hal-dummy/src/se/hal/plugin/dummy/DummyController.java

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+package se.hal.plugin.dummy;
+
+import se.hal.intf.*;
+import se.hal.struct.devicedata.TemperatureSensorData;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.*;
+
+
+public class DummyController implements HalSensorController, HalEventController, Runnable {
+    private List registeredDevices = new ArrayList();
+    private ScheduledExecutorService executor;
+    private HalSensorReportListener sensorListener;
+    private HalEventReportListener eventListener;
+
+
+    public DummyController() {}
+
+
+    @Override
+    public void initialize() {
+        executor = Executors.newScheduledThreadPool(1);
+        executor.scheduleAtFixedRate(this, 0, 60, TimeUnit.SECONDS);
+    }
+
+
+    @Override
+    public void run() {
+        if (registeredDevices != null) {
+            for (Object device : registeredDevices) {
+                if (sensorListener != null && device instanceof DummyTemperatureSensor) {
+                    sensorListener.reportReceived(
+                            (HalSensorConfig) device,
+                            new TemperatureSensorData(
+                                    (int)(Math.random()*30),
+                                    System.currentTimeMillis()
+                            )
+                    );
+                }
+            }
+        }
+    }
+
+    @Override
+    public void register(HalSensorConfig sensorConfig) {
+        if (sensorConfig instanceof DummyTemperatureSensor) {
+            registeredDevices.add(sensorConfig);
+        }
+    }
+
+    @Override
+    public void register(HalEventConfig eventConfig) {
+        if (eventConfig instanceof DummySwitchEvent) {
+            registeredDevices.add(eventConfig);
+        }
+    }
+
+    @Override
+    public void deregister(HalSensorConfig sensorConfig) {
+        registeredDevices.remove(sensorConfig);
+    }
+
+    @Override
+    public void deregister(HalEventConfig eventConfig) {
+        registeredDevices.remove(eventConfig);
+    }
+
+    @Override
+    public void send(HalEventConfig eventConfig, HalEventData eventData) {
+        // Nothing to do as this is a dummy
+    }
+
+    @Override
+    public int size() {
+        return registeredDevices.size();
+    }
+
+    @Override
+    public void setListener(HalSensorReportListener listener) { sensorListener = listener; }
+
+    @Override
+    public void setListener(HalEventReportListener listener) { eventListener = listener; }
+
+    @Override
+    public void close() {
+        executor.shutdown();
+    }
+}

plugins/hal-dummy/src/se/hal/plugin/dummy/DummySwitchEvent.java

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+package se.hal.plugin.dummy;
+
+import se.hal.intf.*;
+import se.hal.struct.devicedata.SwitchEventData;
+import se.hal.struct.devicedata.TemperatureSensorData;
+
+public class DummySwitchEvent implements HalEventConfig {
+
+
+    public DummySwitchEvent() { }
+
+
+    @Override
+    public Class<? extends HalEventController> getEventControllerClass() {
+        return DummyController.class;
+    }
+
+    @Override
+    public Class<? extends HalEventData> getEventDataClass() {
+        return SwitchEventData.class;
+    }
+}

plugins/hal-dummy/src/se/hal/plugin/dummy/DummyTemperatureSensor.java

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+package se.hal.plugin.dummy;
+
+import se.hal.intf.HalSensorConfig;
+import se.hal.intf.HalSensorController;
+import se.hal.intf.HalSensorData;
+import se.hal.struct.devicedata.TemperatureSensorData;
+
+
+public class DummyTemperatureSensor implements HalSensorConfig {
+
+
+    public DummyTemperatureSensor() { }
+
+
+    @Override
+    public long getDataInterval() {
+        return 60*1000; // 1 min
+    }
+
+    @Override
+    public AggregationMethod getAggregationMethod() {
+        return AggregationMethod.AVERAGE;
+    }
+
+    @Override
+    public Class<? extends HalSensorController> getSensorControllerClass() {
+        return DummyController.class;
+    }
+
+    @Override
+    public Class<? extends HalSensorData> getSensorDataClass() {
+        return TemperatureSensorData.class;
+    }
+
+}

plugins/hal-dummy/src/se/hal/plugin/dummy/plugin.json

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+{
+    "version": 0.1,
+    "name": "Hal-Dummy Devices",
+    "description": "Dummy devices with simulated data, can be used for demo or testing purposes.",
+    "interfaces": [
+        {"se.hal.intf.HalSensorConfig": "se.hal.plugin.dummy.DummyTemperatureSensor"},
+        {"se.hal.intf.HalEventConfig":  "se.hal.plugin.dummy.DummySwitchEvent"}
+    ]
+}