[netatmo] Null annotations Part 3 of 3 (openhab#8057)

* [netatmo] Null annotations Part 3 of 3 Fix openhab#7913 * Video status only set when there is a video in the event * Add a setting to enable/disable the background discovery Fix openhab#8083 * Cache Optional result in local variable Signed-off-by: Laurent Garnier <[email protected]>
markus7017 · Sep 18, 2020 · 48094ec · 48094ec
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diff --git a/bundles/org.openhab.binding.netatmo/README.md b/bundles/org.openhab.binding.netatmo/README.md
@@ -12,7 +12,13 @@ See http://www.netatmo.com/ for details on their product.
 
 ## Binding Configuration
 
-The binding has no configuration options itself, all configuration is done at 'Things' level but before, you will have to grant openHAB to access Netatmo API.
+The binding has the following configuration options:
+
+| Parameter           | Name                 | Description                       |
+|---------------------|----------------------|-----------------------------------|
+| backgroundDiscovery | Background Discovery | If set to true, the device and its associated modules are updated in the discovery inbox at each API call run to refresh device data. Default is false. |
+
+Before setting up your 'Things', you will have to grant openHAB to access Netatmo API.
 Here is the procedure:
 
 ### 1. Application Creation
@@ -503,10 +509,9 @@ All these channels are read only.
 ### Welcome and Presence Camera
 
 Warnings:
-- The URL of the live snapshot is a fixed URL so the value of the channel cameraLivePictureUrl / welcomeCameraLivePictureUrl will never be updated once first set by the binding.
-So to get a refreshed picture, you need to use the refresh parameter in your sitemap image element.
-- Some features like the video surveillance are accessed via the local network, so it may be helpful to set a static IP address
-for the camera within your local network.
+
+- The URL of the live snapshot is a fixed URL so the value of the channel cameraLivePictureUrl / welcomeCameraLivePictureUrl will never be updated once first set by the binding. So to get a refreshed picture, you need to use the refresh parameter in your sitemap image element.
+- Some features like the video surveillance are accessed via the local network, so it may be helpful to set a static IP address for the camera within your local network.
 
 **Supported channels for the Welcome Camera thing:**
 
@@ -523,9 +528,8 @@ for the camera within your local network.
 **Supported channels for the Presence Camera thing:**
 
 Warnings:
-- The floodlight auto-mode (cameraFloodlightAutoMode) isn't updated it is changed by another application. Therefore the
-binding handles its own state of the auto-mode. This has the advantage that the user can define its own floodlight
-switch off behaviour.
+
+- The floodlight auto-mode (cameraFloodlightAutoMode) isn't updated it is changed by another application. Therefore the binding handles its own state of the auto-mode. This has the advantage that the user can define its own floodlight switch off behaviour.
 
 | Channel ID                  | Item Type | Read/Write | Description                                                  |
 |-----------------------------|-----------|------------|--------------------------------------------------------------|

diff --git a/...ing.netatmo/src/main/java/org/openhab/binding/netatmo/internal/NetatmoHandlerFactory.java b/...ing.netatmo/src/main/java/org/openhab/binding/netatmo/internal/NetatmoHandlerFactory.java
@@ -14,6 +14,7 @@
 
 import static org.openhab.binding.netatmo.internal.NetatmoBindingConstants.*;
 
+import java.util.Dictionary;
 import java.util.HashMap;
 import java.util.Hashtable;
 import java.util.Map;
@@ -47,6 +48,7 @@
 import org.openhab.binding.netatmo.internal.welcome.NAWelcomeHomeHandler;
 import org.openhab.binding.netatmo.internal.welcome.NAWelcomePersonHandler;
 import org.osgi.framework.ServiceRegistration;
+import org.osgi.service.component.ComponentContext;
 import org.osgi.service.component.annotations.Activate;
 import org.osgi.service.component.annotations.Component;
 import org.osgi.service.component.annotations.Reference;
@@ -69,6 +71,7 @@ public class NetatmoHandlerFactory extends BaseThingHandlerFactory {
     private final HttpService httpService;
     private final NATherm1StateDescriptionProvider stateDescriptionProvider;
     private final TimeZoneProvider timeZoneProvider;
+    private boolean backgroundDiscovery;
 
     @Activate
     public NetatmoHandlerFactory(final @Reference HttpService httpService,
@@ -79,6 +82,19 @@ public NetatmoHandlerFactory(final @Reference HttpService httpService,
         this.timeZoneProvider = timeZoneProvider;
     }
 
+    @Override
+    protected void activate(ComponentContext componentContext) {
+        super.activate(componentContext);
+        Dictionary<String, Object> properties = componentContext.getProperties();
+        Object property = properties.get("backgroundDiscovery");
+        if (property instanceof Boolean) {
+            backgroundDiscovery = ((Boolean) property).booleanValue();
+        } else {
+            backgroundDiscovery = false;
+        }
+        logger.debug("backgroundDiscovery {}", backgroundDiscovery);
+    }
+
     @Override
     public boolean supportsThingType(ThingTypeUID thingTypeUID) {
         return (SUPPORTED_THING_TYPES_UIDS.contains(thingTypeUID));
@@ -134,7 +150,10 @@ protected void removeHandler(ThingHandler thingHandler) {
     private synchronized void registerDeviceDiscoveryService(NetatmoBridgeHandler netatmoBridgeHandler) {
         if (bundleContext != null) {
             NetatmoModuleDiscoveryService discoveryService = new NetatmoModuleDiscoveryService(netatmoBridgeHandler);
-            discoveryService.activate(null);
+            Map<String, @Nullable Object> configProperties = new HashMap<>();
+            configProperties.put(DiscoveryService.CONFIG_PROPERTY_BACKGROUND_DISCOVERY,
+                    Boolean.valueOf(backgroundDiscovery));
+            discoveryService.activate(configProperties);
             discoveryServiceRegs.put(netatmoBridgeHandler.getThing().getUID(), bundleContext
                     .registerService(DiscoveryService.class.getName(), discoveryService, new Hashtable<>()));
         }

diff --git a/...ding.netatmo/src/main/java/org/openhab/binding/netatmo/internal/camera/CameraAddress.java b/...ding.netatmo/src/main/java/org/openhab/binding/netatmo/internal/camera/CameraAddress.java
@@ -12,15 +12,15 @@
  */
 package org.openhab.binding.netatmo.internal.camera;
 
+import java.util.Objects;
+
 import org.eclipse.jdt.annotation.NonNullByDefault;
 import org.eclipse.jdt.annotation.Nullable;
 
-import java.util.Objects;
-
 /**
  * {@link CameraAddress} handles the data to address a camera (VPN and local address).
  *
- * @author Sven Strohschein
+ * @author Sven Strohschein - Initial contribution
  */
 @NonNullByDefault
 public class CameraAddress {
@@ -43,6 +43,7 @@ public String getLocalURL() {
 
     /**
      * Checks if the VPN URL was changed / isn't equal to the given VPN-URL.
+     * 
      * @param vpnURL old / known VPN URL
      * @return true, when the VPN URL isn't equal given VPN URL, otherwise false
      */
@@ -52,8 +53,12 @@ public boolean isVpnURLChanged(String vpnURL) {
 
     @Override
     public boolean equals(@Nullable Object object) {
-        if (this == object) return true;
-        if (object == null || getClass() != object.getClass()) return false;
+        if (this == object) {
+            return true;
+        }
+        if (object == null || getClass() != object.getClass()) {
+            return false;
+        }
         CameraAddress that = (CameraAddress) object;
         return vpnURL.equals(that.vpnURL) && localURL.equals(that.localURL);
     }

diff --git a/...ding.netatmo/src/main/java/org/openhab/binding/netatmo/internal/camera/CameraHandler.java b/...ding.netatmo/src/main/java/org/openhab/binding/netatmo/internal/camera/CameraHandler.java
@@ -12,11 +12,14 @@
  */
 package org.openhab.binding.netatmo.internal.camera;
 
-import static org.openhab.binding.netatmo.internal.ChannelTypeUtils.*;
+import static org.openhab.binding.netatmo.internal.ChannelTypeUtils.toOnOffType;
 import static org.openhab.binding.netatmo.internal.NetatmoBindingConstants.*;
 
-import org.eclipse.jdt.annotation.NonNull;
+import java.io.IOException;
+import java.util.Optional;
+
 import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.eclipse.jdt.annotation.Nullable;
 import org.eclipse.smarthome.core.i18n.TimeZoneProvider;
 import org.eclipse.smarthome.core.library.types.OnOffType;
 import org.eclipse.smarthome.core.thing.ChannelUID;
@@ -29,19 +32,16 @@
 import org.json.JSONObject;
 import org.openhab.binding.netatmo.internal.ChannelTypeUtils;
 import org.openhab.binding.netatmo.internal.handler.NetatmoModuleHandler;
-
-import io.swagger.client.model.NAWelcomeCamera;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.io.IOException;
-import java.util.Optional;
+import io.swagger.client.model.NAWelcomeCamera;
 
 /**
  * {@link CameraHandler} is the class used to handle Camera Data
  *
- * @author Sven Strohschein (partly moved code from NAWelcomeCameraHandler to introduce inheritance, see
- *         NAWelcomeCameraHandler)
+ * @author Sven Strohschein - Initial contribution (partly moved code from NAWelcomeCameraHandler to introduce
+ *         inheritance, see NAWelcomeCameraHandler)
  *
  */
 @NonNullByDefault
@@ -53,7 +53,7 @@ public abstract class CameraHandler extends NetatmoModuleHandler<NAWelcomeCamera
 
     private final Logger logger = LoggerFactory.getLogger(CameraHandler.class);
 
-    private Optional<CameraAddress> cameraAddress = Optional.empty();
+    private @Nullable CameraAddress cameraAddress;
 
     protected CameraHandler(Thing thing, final TimeZoneProvider timeZoneProvider) {
         super(thing, timeZoneProvider);
@@ -65,9 +65,9 @@ public void handleCommand(ChannelUID channelUID, Command command) {
         switch (channelId) {
             case CHANNEL_CAMERA_STATUS:
             case CHANNEL_WELCOME_CAMERA_STATUS:
-                if(command == OnOffType.ON) {
+                if (command == OnOffType.ON) {
                     switchVideoSurveillance(true);
-                } else if(command == OnOffType.OFF) {
+                } else if (command == OnOffType.OFF) {
                     switchVideoSurveillance(false);
                 }
                 break;
@@ -81,7 +81,7 @@ protected void updateProperties(NAWelcomeCamera moduleData) {
     }
 
     @Override
-    protected State getNAThingProperty(@NonNull String channelId) {
+    protected State getNAThingProperty(String channelId) {
         switch (channelId) {
             case CHANNEL_CAMERA_STATUS:
                 return getStatusState();
@@ -188,7 +188,7 @@ private void switchVideoSurveillance(boolean isOn) {
         Optional<String> localCameraURL = getLocalCameraURL();
         if (localCameraURL.isPresent()) {
             String url = localCameraURL.get() + STATUS_CHANGE_URL_PATH + "?status=";
-            if(isOn) {
+            if (isOn) {
                 url += "on";
             } else {
                 url += "off";
@@ -201,17 +201,20 @@ private void switchVideoSurveillance(boolean isOn) {
 
     protected Optional<String> getLocalCameraURL() {
         Optional<String> vpnURLOptional = getVpnUrl();
+        CameraAddress address = cameraAddress;
         if (vpnURLOptional.isPresent()) {
             final String vpnURL = vpnURLOptional.get();
 
-            //The local address is (re-)requested when it wasn't already determined or when the vpn address was changed.
-            if (!cameraAddress.isPresent() || cameraAddress.get().isVpnURLChanged(vpnURL)) {
+            // The local address is (re-)requested when it wasn't already determined or when the vpn address was
+            // changed.
+            if (address == null || address.isVpnURLChanged(vpnURL)) {
                 Optional<JSONObject> json = executeGETRequestJSON(vpnURL + PING_URL_PATH);
-                cameraAddress = json.map(j -> j.optString("local_url", null))
-                        .map(localURL -> new CameraAddress(vpnURL, localURL));
+                address = json.map(j -> j.optString("local_url", null))
+                        .map(localURL -> new CameraAddress(vpnURL, localURL)).orElse(null);
+                cameraAddress = address;
             }
         }
-        return cameraAddress.map(CameraAddress::getLocalURL);
+        return Optional.ofNullable(address).map(CameraAddress::getLocalURL);
     }
 
     private Optional<JSONObject> executeGETRequestJSON(String url) {

diff --git a/...in/java/org/openhab/binding/netatmo/internal/discovery/NetatmoModuleDiscoveryService.java b/...in/java/org/openhab/binding/netatmo/internal/discovery/NetatmoModuleDiscoveryService.java
@@ -29,13 +29,9 @@
 import org.openhab.binding.netatmo.internal.handler.NetatmoDataListener;
 
 import io.swagger.client.model.NAHealthyHomeCoach;
-import io.swagger.client.model.NAHealthyHomeCoachDataBody;
 import io.swagger.client.model.NAMain;
 import io.swagger.client.model.NAPlug;
-import io.swagger.client.model.NAStationDataBody;
-import io.swagger.client.model.NAThermostatDataBody;
 import io.swagger.client.model.NAWelcomeHome;
-import io.swagger.client.model.NAWelcomeHomeData;
 
 /**
  * The {@link NetatmoModuleDiscoveryService} searches for available Netatmo
@@ -70,42 +66,41 @@ public void deactivate() {
     @Override
     public void startScan() {
         if (netatmoBridgeHandler.configuration.readStation) {
-            NAStationDataBody stationDataBody = netatmoBridgeHandler.getStationsDataBody(null);
-            if (stationDataBody != null) {
-                stationDataBody.getDevices().forEach(station -> {
+            netatmoBridgeHandler.getStationsDataBody(null).ifPresent(dataBody -> {
+                dataBody.getDevices().forEach(station -> {
                     discoverWeatherStation(station);
                 });
-            }
+            });
         }
         if (netatmoBridgeHandler.configuration.readHealthyHomeCoach) {
-            NAHealthyHomeCoachDataBody homecoachDataBody = netatmoBridgeHandler.getHomecoachDataBody(null);
-            if (homecoachDataBody != null) {
-                homecoachDataBody.getDevices().forEach(homecoach -> {
+            netatmoBridgeHandler.getHomecoachDataBody(null).ifPresent(dataBody -> {
+                dataBody.getDevices().forEach(homecoach -> {
                     discoverHomeCoach(homecoach);
                 });
-            }
+            });
         }
         if (netatmoBridgeHandler.configuration.readThermostat) {
-            NAThermostatDataBody thermostatsDataBody = netatmoBridgeHandler.getThermostatsDataBody(null);
-            if (thermostatsDataBody != null) {
-                thermostatsDataBody.getDevices().forEach(plug -> {
+            netatmoBridgeHandler.getThermostatsDataBody(null).ifPresent(dataBody -> {
+                dataBody.getDevices().forEach(plug -> {
                     discoverThermostat(plug);
                 });
-            }
+            });
         }
         if (netatmoBridgeHandler.configuration.readWelcome || netatmoBridgeHandler.configuration.readPresence) {
-            NAWelcomeHomeData welcomeHomeData = netatmoBridgeHandler.getWelcomeDataBody(null);
-            if (welcomeHomeData != null) {
-                welcomeHomeData.getHomes().forEach(home -> {
+            netatmoBridgeHandler.getWelcomeDataBody(null).ifPresent(dataBody -> {
+                dataBody.getHomes().forEach(home -> {
                     discoverWelcomeHome(home);
                 });
-            }
+            });
         }
         stopScan();
     }
 
     @Override
     public void onDataRefreshed(Object data) {
+        if (!isBackgroundDiscoveryEnabled()) {
+            return;
+        }
         if (data instanceof NAMain) {
             discoverWeatherStation((NAMain) data);
         } else if (data instanceof NAPlug) {