Add option to publish all item changes.

ESH-INF/thing/thing-types.xml

@@ -31,9 +31,14 @@
 	            <description>MQTT topic prefix for messages leaving openHAB to eraser.</description>
 	            <default>oh/out/</default>
             </parameter>
-            <parameter name="publish-group" type="text" required="true">
+            <parameter name="publish-all" type="boolean" required="true">
+                <label>Publish All</label>
+                <description>If enabled, changes of every item will be published. Otherwise only those of the members of group set in the parameter "Publish Group"</description>
+                <default>true</default>
+            </parameter>
+            <parameter name="publish-group" type="text" required="false">
 		        <label>Publish group</label>
-		        <description>Group whose member will trigger an update</description>
+		        <description>Group whose members will trigger an update</description>
 		        <context>item</context>
             </parameter>
         </config-description>

src/main/java/org/openhab/binding/openlicht/BindingConstants.java

@@ -33,6 +33,7 @@ public class BindingConstants {
     public static final String CONFIG_TIMEOUT_MQTT_UNSUPPORTED_CATEGORIES = "unsupported-category-reset";
     public static final String CONFIG_ERASER_OUT_TOPIC = "outTopic";
     public static final String CONFIG_ERASER_PUBLISH_GROUP = "publish-group";
+    public static final String CONFIG_ERASER_PUBLISH_ALL = "publish-all";
 
     // List of all Thing Type UIDs
     public static final ThingTypeUID THING_TYPE_SKYWRITER_HAT = new ThingTypeUID(BINDING_ID, "skywriter-hat");

src/main/java/org/openhab/binding/openlicht/handler/AbstractMqttHandler.java

@@ -103,6 +103,9 @@ public abstract class AbstractMqttHandler extends BaseThingHandler
             logger.warn("Broker name of {} not set", me());
             return false;
         }
+        if (thing == null) {
+            return false;
+        }
         if (!"mqtt:systemBroker".equals(thing.getThingTypeUID().getAsString())
                 && !"mqtt:broker".equals(thing.getThingTypeUID().getAsString())) {
             return false;

src/main/java/org/openhab/binding/openlicht/handler/EraserHandler.java

@@ -33,6 +33,7 @@ public class EraserHandler extends AbstractMqttHandler implements StateChangeLis
     private final @NonNull Logger logger = LoggerFactory.getLogger(EraserHandler.class);
     private @Nullable ItemRegistry itemRegistry;
     private String outTopic;
+    private boolean publishAll = false;
     private String publishGroupName;
     private boolean publishGroupFound = false;
     private Set<GenericItem> observedItems = new HashSet<>();
@@ -49,6 +50,8 @@ public class EraserHandler extends AbstractMqttHandler implements StateChangeLis
             delegateListener = new WeakReference<DelegateEraserRegistryChangeListener>(
                     new DelegateEraserRegistryChangeListener(this));
             registry.addRegistryChangeListener(delegateListener.get());
+        } else {
+            logger.warn("No item registry set, so no updates for item changes");
         }
     }
 
@@ -56,9 +59,17 @@ public class EraserHandler extends AbstractMqttHandler implements StateChangeLis
     protected void moreInitializeBefore() {
         this.outTopic = getConfigValueAsString(BindingConstants.CONFIG_ERASER_OUT_TOPIC);
         this.publishGroupName = getConfigValueAsString(BindingConstants.CONFIG_ERASER_PUBLISH_GROUP);
+        this.publishAll = getConfigValueAsBoolean(BindingConstants.CONFIG_ERASER_PUBLISH_ALL);
         if (this.outTopic.charAt(this.outTopic.length() - 1) != '/') {
             this.outTopic += "/";
         }
+        if (this.publishAll) {
+            if (this.itemRegistry != null) {
+                for (Item item : this.itemRegistry.getAll()) {
+                    updated(item, item);
+                }
+            }
+        } else {
             if (this.itemRegistry != null) {
                 try {
                     Item publishGroupItem = this.itemRegistry.getItem(this.publishGroupName);
@@ -68,7 +79,8 @@ public class EraserHandler extends AbstractMqttHandler implements StateChangeLis
                     logger.warn("Could not find group with name '" + this.publishGroupName + "'");
                 }
             } else {
-            logger.warn("No item registry set, so no updates for item changes");
+                logger.warn("No item registry set, so could not search for publish group");
+            }
         }
     }
 
@@ -89,6 +101,10 @@ public class EraserHandler extends AbstractMqttHandler implements StateChangeLis
         this.lastStatusUpdatePhase = phase;
         this.lastStatusUpdateSuccess = success;
         this.lastStatusUpdateDescription = description;
+        if (this.publishAll) {
+            super.statusUpdate(phase, success, description);
+            return;
+        }
         String newDescription = description;
         if (!this.publishGroupFound) {
             // append information to description
@@ -149,7 +165,6 @@ public class EraserHandler extends AbstractMqttHandler implements StateChangeLis
             } else {
                 logger.warn("Could not set state for {} using '{}'", genericItem, new String(payload));
             }
-            genericItem.setState(new StringType(new String(payload)));
         } else {
             logger.debug("No item registry to process message");
         }
@@ -199,6 +214,11 @@ public class EraserHandler extends AbstractMqttHandler implements StateChangeLis
 
     public void added(Item element) {
         GenericItem genericItem = (GenericItem) element;
+        if (this.publishAll) {
+            if (observedItems.add(genericItem)) {
+                genericItem.addStateChangeListener(this);
+            }
+        } else {
             if (!this.publishGroupFound && genericItem.getName().equals(this.publishGroupName)) {
                 myGroupFound(genericItem);
                 // update status with last known value (to remove the clause about missing group item)
@@ -211,11 +231,14 @@ public class EraserHandler extends AbstractMqttHandler implements StateChangeLis
                 }
             }
         }
+    }
 
     public void removed(Item element) {
         GenericItem genericItem = (GenericItem) element;
+        if (observedItems.remove(genericItem)) {
             genericItem.removeStateChangeListener(this);
-        if (this.publishGroupFound && genericItem.getName().equals(this.publishGroupName)) {
+        }
+        if (!this.publishAll && this.publishGroupFound && genericItem.getName().equals(this.publishGroupName)) {
             // someone evil deleted the publish group
             this.publishGroupFound = false;
             GroupItem groupItem = (GroupItem) genericItem;