adapted AutoUpdateDelegate to the new ESH auto update infrastructure (#…

…390)

* adapted AutoUpdateDelegate to the new ESH auto update infrastructure
Related to eclipse-archived/smarthome#5011

Signed-off-by: Kai Kreuzer <kai@openhab.org>

bundles/org.openhab.core.compat1x/META-INF/MANIFEST.MF

@@ -85,7 +85,6 @@ Import-Package:
  org.eclipse.jdt.annotation;resolution:=optional,
  org.eclipse.smarthome.config.core,
  org.eclipse.smarthome.core.audio,
- org.eclipse.smarthome.core.autoupdate,
  org.eclipse.smarthome.core.common.registry,
  org.eclipse.smarthome.core.events,
  org.eclipse.smarthome.core.items,

bundles/org.openhab.core.compat1x/OSGI-INF/.gitignore

@@ -0,0 +1 @@
+/*.xml

bundles/org.openhab.core.compat1x/src/main/java/org/openhab/core/autoupdate/internal/AutoUpdateProviderDelegate.java

@@ -8,10 +8,28 @@
  */
 package org.openhab.core.autoupdate.internal;
 
+import java.util.Collection;
+import java.util.HashSet;
 import java.util.Set;
 import java.util.concurrent.CopyOnWriteArraySet;
 
-import org.eclipse.smarthome.core.autoupdate.AutoUpdateBindingConfigProvider;
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.eclipse.jdt.annotation.Nullable;
+import org.eclipse.smarthome.core.common.registry.ProviderChangeListener;
+import org.eclipse.smarthome.core.common.registry.RegistryChangeListener;
+import org.eclipse.smarthome.core.items.Item;
+import org.eclipse.smarthome.core.items.ItemRegistry;
+import org.eclipse.smarthome.core.items.Metadata;
+import org.eclipse.smarthome.core.items.MetadataKey;
+import org.eclipse.smarthome.core.items.MetadataProvider;
+import org.openhab.core.autoupdate.AutoUpdateBindingProvider;
+import org.openhab.core.binding.BindingChangeListener;
+import org.openhab.core.binding.BindingProvider;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 
 /**
  * This class serves as a mapping from the "old" org.openhab namespace to the new org.eclipse.smarthome
@@ -20,26 +38,185 @@
  *
  * @author Kai Kreuzer - Initial contribution and API
  */
-public class AutoUpdateProviderDelegate implements AutoUpdateBindingConfigProvider {
+@NonNullByDefault
+@Component(service = MetadataProvider.class)
+public class AutoUpdateProviderDelegate
+ implements MetadataProvider, RegistryChangeListener<Item>, BindingChangeListener {
 
- private Set<org.openhab.core.autoupdate.AutoUpdateBindingProvider> providers = new CopyOnWriteArraySet<>();
+ private static final String AUTOUPDATE_KEY = "autoupdate";
 
- public void addAutoUpdateBindingProvider(org.openhab.core.autoupdate.AutoUpdateBindingProvider provider) {
+ private Set<AutoUpdateBindingProvider> providers = new CopyOnWriteArraySet<>();
+ private Set<ProviderChangeListener<Metadata>> listeners = new CopyOnWriteArraySet<>();
+ private Set<String> itemUpdateVetos = new HashSet<>();
+ private boolean started = false;
+
+ private @NonNullByDefault({}) ItemRegistry itemRegistry;
+
+ @Activate
+ protected void activate() {
+ refreshItemUpdateVetos();
+ started = true;
+ itemRegistry.addRegistryChangeListener(this);
+ for (AutoUpdateBindingProvider provider : providers) {
+ provider.addBindingChangeListener(this);
+ }
+ }
+
+ @Deactivate
+ protected void deactivate() {
+ for (AutoUpdateBindingProvider provider : providers) {
+ provider.removeBindingChangeListener(this);
+ }
+ itemRegistry.removeRegistryChangeListener(this);
+ started = false;
+ }
+
+ @Reference(cardinality = ReferenceCardinality.MULTIPLE)
+ public void addAutoUpdateBindingProvider(AutoUpdateBindingProvider provider) {
  providers.add(provider);
+ if (started) {
+ refreshItemUpdateVetos();
+ provider.addBindingChangeListener(this);
+ }
  }
 
- public void removeAutoUpdateBindingProvider(org.openhab.core.autoupdate.AutoUpdateBindingProvider provider) {
+ public void removeAutoUpdateBindingProvider(AutoUpdateBindingProvider provider) {
  providers.remove(provider);
+ if (started) {
+ refreshItemUpdateVetos();
+ provider.removeBindingChangeListener(this);
+ }
+ }
+
+ @Reference
+ protected void setItemRegistry(ItemRegistry itemRegistry) {
+ this.itemRegistry = itemRegistry;
+ }
+
+ protected void unsetItemRegistry(ItemRegistry itemRegistry) {
+ this.itemRegistry = null;
+ }
+
+ @Override
+ public void addProviderChangeListener(ProviderChangeListener<Metadata> listener) {
+ this.listeners.add(listener);
+ }
+
+ @Override
+ public Collection<Metadata> getAll() {
+ Set<Metadata> metadataSet = new HashSet<>();
+ for (Item item : itemRegistry.getAll()) {
+ synchronized (itemUpdateVetos) {
+ if (itemUpdateVetos.contains(item.getName())) {
+ Metadata metadata = getMetadata(item.getName());
+ metadataSet.add(metadata);
+ }
+ }
+ }
+ return metadataSet;
+ }
+
+ @Override
+ public void removeProviderChangeListener(ProviderChangeListener<Metadata> listener) {
+ this.listeners.remove(listener);
+ }
+
+ private void refreshItemUpdateVetos() {
+ Set<String> newVetos = new HashSet<>();
+ synchronized (itemUpdateVetos) {
+ itemUpdateVetos.clear();
+ for (Item item : itemRegistry.getAll()) {
+ for (AutoUpdateBindingProvider provider : providers) {
+ Boolean autoUpdate = provider.autoUpdate(item.getName());
+ if (Boolean.FALSE.equals(autoUpdate)) {
+ newVetos.add(item.getName());
+ }
+ }
+ }
+
+ // find the removed ones
+ Set<String> removedVetos = new HashSet<>(itemUpdateVetos);
+ removedVetos.removeAll(newVetos);
+ for (String itemName : removedVetos) {
+ if (itemUpdateVetos.contains(itemName)) {
+ Metadata md = getMetadata(itemName);
+ for (ProviderChangeListener<Metadata> listener : listeners) {
+ listener.removed(this, md);
+ }
+ }
+ }
+
+ // find the added ones
+ Set<String> addedVetos = new HashSet<>(newVetos);
+ addedVetos.removeAll(itemUpdateVetos);
+ for (String itemName : addedVetos) {
+ notifyAboutAddedMetadata(itemName);
+ }
+ itemUpdateVetos = newVetos;
+ }
+ }
+
+ private void notifyAboutAddedMetadata(String itemName) {
+ if (itemUpdateVetos.contains(itemName)) {
+ Metadata md = getMetadata(itemName);
+ for (ProviderChangeListener<Metadata> listener : listeners) {
+ listener.added(this, md);
+ }
+ }
+ }
+
+ private void notifyAboutRemovedMetadata(String itemName) {
+ for (ProviderChangeListener<Metadata> listener : listeners) {
+ listener.removed(this, getMetadata(itemName));
+ }
+ }
+
+ private Metadata getMetadata(String itemName) {
+ return new Metadata(new MetadataKey(AUTOUPDATE_KEY, itemName), "false", null);
  }
 
  @Override
- public Boolean autoUpdate(String itemName) {
- for (org.openhab.core.autoupdate.AutoUpdateBindingProvider provider : providers) {
- Boolean autoUpdate = provider.autoUpdate(itemName);
- if (autoUpdate != null) {
- return autoUpdate;
+ public void added(Item element) {
+ String itemName = element.getName();
+ refreshVetoForItem(itemName);
+ }
+
+ private void refreshVetoForItem(String itemName) {
+ synchronized (itemUpdateVetos) {
+ boolean removed = itemUpdateVetos.remove(itemName);
+ for (AutoUpdateBindingProvider provider : providers) {
+ Boolean autoUpdate = provider.autoUpdate(itemName);
+ if (Boolean.FALSE.equals(autoUpdate)) {
+ itemUpdateVetos.add(itemName);
+ notifyAboutAddedMetadata(itemName);
+ return;
+ }
  }
+ if (removed) {
+ notifyAboutRemovedMetadata(itemName);
+ }
+ }
+ }
+
+ @Override
+ public void removed(Item element) {
+ itemUpdateVetos.remove(element.getName());
+ }
+
+ @Override
+ public void updated(Item oldElement, Item element) {
+ refreshVetoForItem(element.getName());
+ }
+
+ @Override
+ public void bindingChanged(@Nullable BindingProvider provider, @Nullable String itemName) {
+ if (itemName != null) {
+ refreshVetoForItem(itemName);
  }
- return null;
+ }
+
+ @Override
+ public void allBindingsChanged(@Nullable BindingProvider provider) {
+ refreshItemUpdateVetos();
  }
 }