X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?a=blobdiff_plain;f=opendaylight%2Fblueprint%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Fblueprint%2Fext%2FDataStoreAppConfigMetadata.java;h=0d6585bda2f026ae25b921951bcac8ec22be333e;hb=2d60632f7cf63712e8357a3cf3fc40d83366e5e6;hp=b2ea693ab90181f8dcd3c60a0e56b34177dd1b90;hpb=1ecaae69e61d9eca89b7521d542ca2ec4885c98d;p=controller.git diff --git a/opendaylight/blueprint/src/main/java/org/opendaylight/controller/blueprint/ext/DataStoreAppConfigMetadata.java b/opendaylight/blueprint/src/main/java/org/opendaylight/controller/blueprint/ext/DataStoreAppConfigMetadata.java index b2ea693ab9..0d6585bda2 100644 --- a/opendaylight/blueprint/src/main/java/org/opendaylight/controller/blueprint/ext/DataStoreAppConfigMetadata.java +++ b/opendaylight/blueprint/src/main/java/org/opendaylight/controller/blueprint/ext/DataStoreAppConfigMetadata.java @@ -8,24 +8,22 @@ package org.opendaylight.controller.blueprint.ext; import com.google.common.base.Optional; -import com.google.common.base.Preconditions; -import com.google.common.base.Strings; -import com.google.common.util.concurrent.CheckedFuture; import com.google.common.util.concurrent.FutureCallback; import com.google.common.util.concurrent.Futures; +import com.google.common.util.concurrent.ListenableFuture; +import com.google.common.util.concurrent.MoreExecutors; +import java.io.File; +import java.io.IOException; +import java.net.URISyntaxException; import java.util.Collection; -import java.util.Collections; -import java.util.List; import java.util.Objects; import java.util.concurrent.atomic.AtomicBoolean; import javax.annotation.Nonnull; import javax.annotation.Nullable; -import org.apache.aries.blueprint.di.AbstractRecipe; -import org.apache.aries.blueprint.di.ExecutionContext; -import org.apache.aries.blueprint.di.Recipe; -import org.apache.aries.blueprint.ext.DependentComponentFactoryMetadata; +import javax.xml.parsers.ParserConfigurationException; +import javax.xml.stream.XMLStreamException; import org.apache.aries.blueprint.services.ExtendedBlueprintContainer; -import org.opendaylight.controller.blueprint.BlueprintContainerRestartService; +import org.opendaylight.controller.blueprint.ext.DataStoreAppConfigDefaultXMLReader.ConfigURLProvider; import org.opendaylight.controller.md.sal.binding.api.ClusteredDataTreeChangeListener; import org.opendaylight.controller.md.sal.binding.api.DataBroker; import org.opendaylight.controller.md.sal.binding.api.DataObjectModification; @@ -34,31 +32,18 @@ import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier; import org.opendaylight.controller.md.sal.binding.api.DataTreeModification; import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction; import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType; -import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException; -import org.opendaylight.controller.sal.core.api.model.SchemaService; -import org.opendaylight.yangtools.binding.data.codec.api.BindingNormalizedNodeSerializer; +import org.opendaylight.mdsal.binding.dom.codec.api.BindingNormalizedNodeSerializer; +import org.opendaylight.mdsal.dom.api.DOMSchemaService; import org.opendaylight.yangtools.concepts.ListenerRegistration; import org.opendaylight.yangtools.yang.binding.DataObject; -import org.opendaylight.yangtools.yang.binding.Identifiable; -import org.opendaylight.yangtools.yang.binding.Identifier; -import org.opendaylight.yangtools.yang.binding.InstanceIdentifier; -import org.opendaylight.yangtools.yang.binding.util.BindingReflections; -import org.opendaylight.yangtools.yang.common.QName; -import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier; import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode; -import org.opendaylight.yangtools.yang.data.impl.codec.xml.XmlUtils; -import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes; -import org.opendaylight.yangtools.yang.data.impl.schema.transform.dom.parser.DomToNormalizedNodeParserFactory; -import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode; import org.opendaylight.yangtools.yang.model.api.DataSchemaNode; -import org.opendaylight.yangtools.yang.model.api.ListSchemaNode; -import org.opendaylight.yangtools.yang.model.api.Module; import org.opendaylight.yangtools.yang.model.api.SchemaContext; -import org.osgi.framework.ServiceReference; import org.osgi.service.blueprint.container.ComponentDefinitionException; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.w3c.dom.Element; +import org.xml.sax.SAXException; /** * Factory metadata corresponding to the "clustered-app-config" element that obtains an application's @@ -68,191 +53,97 @@ import org.w3c.dom.Element; * * @author Thomas Pantelis */ -public class DataStoreAppConfigMetadata implements DependentComponentFactoryMetadata { +public class DataStoreAppConfigMetadata extends AbstractDependentComponentFactoryMetadata { private static final Logger LOG = LoggerFactory.getLogger(DataStoreAppConfigMetadata.class); static final String BINDING_CLASS = "binding-class"; static final String DEFAULT_CONFIG = "default-config"; + static final String DEFAULT_CONFIG_FILE_NAME = "default-config-file-name"; static final String LIST_KEY_VALUE = "list-key-value"; - private final String id; + private static final String DEFAULT_APP_CONFIG_FILE_PATH = "etc" + File.separator + "opendaylight" + File.separator + + "datastore" + File.separator + "initial" + File.separator + "config"; + private final Element defaultAppConfigElement; + private final String defaultAppConfigFileName; private final String appConfigBindingClassName; private final String appConfigListKeyValue; + private final UpdateStrategy appConfigUpdateStrategy; private final AtomicBoolean readingInitialAppConfig = new AtomicBoolean(true); - private final AtomicBoolean started = new AtomicBoolean(); private volatile BindingContext bindingContext; - private volatile ExtendedBlueprintContainer container; - private volatile StaticServiceReferenceRecipe dataBrokerServiceRecipe; - private volatile StaticServiceReferenceRecipe bindingCodecServiceRecipe; private volatile ListenerRegistration appConfigChangeListenerReg; private volatile DataObject currentAppConfig; - private volatile SatisfactionCallback satisfactionCallback; - private volatile String failureMessage; - private volatile String dependendencyDesc; // Note: the BindingNormalizedNodeSerializer interface is annotated as deprecated because there's an // equivalent interface in the mdsal project but the corresponding binding classes in the controller // project are still used - conversion to the mdsal binding classes hasn't occurred yet. private volatile BindingNormalizedNodeSerializer bindingSerializer; - public DataStoreAppConfigMetadata(@Nonnull String id, @Nonnull String appConfigBindingClassName, - @Nullable String appConfigListKeyValue, @Nullable Element defaultAppConfigElement) { - this.id = Preconditions.checkNotNull(id); + public DataStoreAppConfigMetadata(@Nonnull final String id, @Nonnull final String appConfigBindingClassName, + @Nullable final String appConfigListKeyValue, @Nullable final String defaultAppConfigFileName, + @Nonnull final UpdateStrategy updateStrategyValue, @Nullable final Element defaultAppConfigElement) { + super(id); this.defaultAppConfigElement = defaultAppConfigElement; + this.defaultAppConfigFileName = defaultAppConfigFileName; this.appConfigBindingClassName = appConfigBindingClassName; this.appConfigListKeyValue = appConfigListKeyValue; - } - - @Override - public String getId() { - return id; - } - - @Override - public int getActivation() { - return ACTIVATION_EAGER; - } - - @Override - public List getDependsOn() { - return Collections.emptyList(); - } - - @Override - public boolean isSatisfied() { - return currentAppConfig != null; + this.appConfigUpdateStrategy = updateStrategyValue; } @Override @SuppressWarnings("unchecked") - public void init(ExtendedBlueprintContainer container) { - LOG.debug("{}: In init", id); - - this.container = container; + public void init(final ExtendedBlueprintContainer container) { + super.init(container); Class appConfigBindingClass; try { Class bindingClass = container.getBundleContext().getBundle().loadClass(appConfigBindingClassName); - if(!DataObject.class.isAssignableFrom(bindingClass)) { + if (!DataObject.class.isAssignableFrom(bindingClass)) { throw new ComponentDefinitionException(String.format( "%s: Specified app config binding class %s does not extend %s", - id, appConfigBindingClassName, DataObject.class.getName())); + logName(), appConfigBindingClassName, DataObject.class.getName())); } appConfigBindingClass = (Class) bindingClass; - } catch(ClassNotFoundException e) { + } catch (final ClassNotFoundException e) { throw new ComponentDefinitionException(String.format("%s: Error loading app config binding class %s", - id, appConfigBindingClassName), e); + logName(), appConfigBindingClassName), e); } - if(Identifiable.class.isAssignableFrom(appConfigBindingClass)) { - // The binding class corresponds to a yang list. - if(Strings.isNullOrEmpty(appConfigListKeyValue)) { - throw new ComponentDefinitionException(String.format( - "%s: App config binding class %s represents a yang list therefore \"%s\" must be specified", - id, appConfigBindingClassName, LIST_KEY_VALUE)); - } - - try { - bindingContext = ListBindingContext.newInstance(appConfigBindingClass, appConfigListKeyValue); - } catch(Exception e) { - throw new ComponentDefinitionException(String.format( - "%s: Error initializing for app config list binding class %s", - id, appConfigBindingClassName), e); - } - - } else { - bindingContext = new ContainerBindingContext(appConfigBindingClass); - } + bindingContext = BindingContext.create(logName(), appConfigBindingClass, appConfigListKeyValue); } @Override public Object create() throws ComponentDefinitionException { - LOG.debug("{}: In create - currentAppConfig: {}", id, currentAppConfig); + LOG.debug("{}: In create - currentAppConfig: {}", logName(), currentAppConfig); - if(failureMessage != null) { - throw new ComponentDefinitionException(failureMessage); - } - - // The following code is a bit odd so requires some explanation. A little background... If a bean - // is a prototype then the corresponding Recipe create method does not register the bean as created - // with the BlueprintRepository and thus the destroy method isn't called on container destroy. We - // rely on destroy being called to close our DTCL registration. Unfortunately the default setting - // for the prototype flag in AbstractRecipe is true and the DependentComponentFactoryRecipe, which - // is created for DependentComponentFactoryMetadata types of which we are one, doesn't have a way for - // us to indicate the prototype state via our metadata. - // - // The ExecutionContext is actually backed by the BlueprintRepository so we access it here to call - // the removePartialObject method which removes any partially created instance, which does not apply - // in our case, and also has the side effect of registering our bean as created as if it wasn't a - // prototype. We also obtain our corresponding Recipe instance and clear the prototype flag. This - // doesn't look to be necessary but is done so for completeness. Better late than never. Note we have - // to do this here rather than in startTracking b/c the ExecutionContext is not available yet at that - // point. - // - // Now the stopTracking method is called on container destroy but startTracking/stopTracking can also - // be called multiple times during the container creation process for Satisfiable recipes as bean - // processors may modify the metadata which could affect how dependencies are satisfied. An example of - // this is with service references where the OSGi filter metadata can be modified by bean processors - // after the initial service dependency is satisfied. However we don't have any metadata that could - // be modified by a bean processor and we don't want to register/unregister our DTCL multiple times - // so we only process startTracking once and close the DTCL registration once on container destroy. - ExecutionContext executionContext = ExecutionContext.Holder.getContext(); - executionContext.removePartialObject(id); - - Recipe myRecipe = executionContext.getRecipe(id); - if(myRecipe instanceof AbstractRecipe) { - LOG.debug("{}: setPrototype to false", id); - ((AbstractRecipe)myRecipe).setPrototype(false); - } else { - LOG.warn("{}: Recipe is null or not an AbstractRecipe", id); - } + super.onCreate(); return currentAppConfig; } @Override - public void startTracking(final SatisfactionCallback satisfactionCallback) { - if(!started.compareAndSet(false, true)) { - return; - } - - LOG.debug("{}: In startTracking", id); - - this.satisfactionCallback = satisfactionCallback; - + protected void startTracking() { // First get the BindingNormalizedNodeSerializer OSGi service. This will be used to create a default // instance of the app config binding class, if necessary. - bindingCodecServiceRecipe = new StaticServiceReferenceRecipe(id + "-binding-codec", container, - BindingNormalizedNodeSerializer.class.getName()); - dependendencyDesc = bindingCodecServiceRecipe.getOsgiFilter(); - - bindingCodecServiceRecipe.startTracking(service -> { + retrieveService("binding-codec", BindingNormalizedNodeSerializer.class, service -> { bindingSerializer = (BindingNormalizedNodeSerializer)service; retrieveDataBrokerService(); }); } private void retrieveDataBrokerService() { - LOG.debug("{}: In retrieveDataBrokerService", id); - + LOG.debug("{}: In retrieveDataBrokerService", logName()); // Get the binding DataBroker OSGi service. - - dataBrokerServiceRecipe = new StaticServiceReferenceRecipe(id + "-data-broker", container, - DataBroker.class.getName()); - dependendencyDesc = dataBrokerServiceRecipe.getOsgiFilter(); - - dataBrokerServiceRecipe.startTracking(service -> retrieveInitialAppConfig((DataBroker)service)); - + retrieveService("data-broker", DataBroker.class, service -> retrieveInitialAppConfig((DataBroker)service)); } - private void retrieveInitialAppConfig(DataBroker dataBroker) { - LOG.debug("{}: Got DataBroker instance - reading app config {}", id, bindingContext.appConfigPath); + private void retrieveInitialAppConfig(final DataBroker dataBroker) { + LOG.debug("{}: Got DataBroker instance - reading app config {}", logName(), bindingContext.appConfigPath); - dependendencyDesc = "Initial app config " + bindingContext.appConfigBindingClass.getSimpleName(); + setDependencyDesc("Initial app config " + bindingContext.appConfigBindingClass.getSimpleName()); // We register a DTCL to get updates and also read the app config data from the data store. If // the app config data is present then both the read and initial DTCN update will return it. If the @@ -262,77 +153,75 @@ public class DataStoreAppConfigMetadata implements DependentComponentFactoryMeta DataTreeIdentifier dataTreeId = new DataTreeIdentifier<>(LogicalDatastoreType.CONFIGURATION, bindingContext.appConfigPath); appConfigChangeListenerReg = dataBroker.registerDataTreeChangeListener(dataTreeId, - new ClusteredDataTreeChangeListener() { - @Override - public void onDataTreeChanged(Collection> changes) { - onAppConfigChanged(changes); - } - }); + (ClusteredDataTreeChangeListener) this::onAppConfigChanged); readInitialAppConfig(dataBroker); } private void readInitialAppConfig(final DataBroker dataBroker) { - final ReadOnlyTransaction readOnlyTx = dataBroker.newReadOnlyTransaction(); - CheckedFuture, ReadFailedException> future = readOnlyTx.read( + ListenableFuture> future = readOnlyTx.read( LogicalDatastoreType.CONFIGURATION, bindingContext.appConfigPath); Futures.addCallback(future, new FutureCallback>() { @Override - public void onSuccess(Optional possibleAppConfig) { - LOG.debug("{}: Read of app config {} succeeded: {}", id, bindingContext.appConfigBindingClass.getName(), - possibleAppConfig); + public void onSuccess(final Optional possibleAppConfig) { + LOG.debug("{}: Read of app config {} succeeded: {}", logName(), bindingContext + .appConfigBindingClass.getName(), possibleAppConfig); readOnlyTx.close(); setInitialAppConfig(possibleAppConfig); } @Override - public void onFailure(Throwable t) { + public void onFailure(final Throwable failure) { readOnlyTx.close(); // We may have gotten the app config via the data tree change listener so only retry if not. - if(readingInitialAppConfig.get()) { - LOG.warn("{}: Read of app config {} failed - retrying", id, - bindingContext.appConfigBindingClass.getName(), t); + if (readingInitialAppConfig.get()) { + LOG.warn("{}: Read of app config {} failed - retrying", logName(), + bindingContext.appConfigBindingClass.getName(), failure); readInitialAppConfig(dataBroker); } } - }); + }, MoreExecutors.directExecutor()); } - private void onAppConfigChanged(Collection> changes) { - for(DataTreeModification change: changes) { + private void onAppConfigChanged(final Collection> changes) { + for (DataTreeModification change: changes) { DataObjectModification changeRoot = change.getRootNode(); ModificationType type = changeRoot.getModificationType(); - LOG.debug("{}: onAppConfigChanged: {}, {}", id, type, change.getRootPath()); + LOG.debug("{}: onAppConfigChanged: {}, {}", logName(), type, change.getRootPath()); - if(type == ModificationType.SUBTREE_MODIFIED || type == ModificationType.WRITE) { + if (type == ModificationType.SUBTREE_MODIFIED || type == ModificationType.WRITE) { DataObject newAppConfig = changeRoot.getDataAfter(); LOG.debug("New app config instance: {}, previous: {}", newAppConfig, currentAppConfig); - if(!setInitialAppConfig(Optional.of(newAppConfig)) && - !Objects.equals(currentAppConfig, newAppConfig)) { - LOG.debug("App config was updated - scheduling container for restart"); + if (!setInitialAppConfig(Optional.of(newAppConfig)) + && !Objects.equals(currentAppConfig, newAppConfig)) { + LOG.debug("App config was updated"); - restartContainer(); + if (appConfigUpdateStrategy == UpdateStrategy.RELOAD) { + restartContainer(); + } } - } else if(type == ModificationType.DELETE) { - LOG.debug("App config was deleted - scheduling container for restart"); + } else if (type == ModificationType.DELETE) { + LOG.debug("App config was deleted"); - restartContainer(); + if (appConfigUpdateStrategy == UpdateStrategy.RELOAD) { + restartContainer(); + } } } } - private boolean setInitialAppConfig(Optional possibleAppConfig) { + private boolean setInitialAppConfig(final Optional possibleAppConfig) { boolean result = readingInitialAppConfig.compareAndSet(true, false); - if(result) { + if (result) { DataObject localAppConfig; - if(possibleAppConfig.isPresent()) { + if (possibleAppConfig.isPresent()) { localAppConfig = possibleAppConfig.get(); } else { // No app config data is present so create an empty instance via the bindingSerializer service. @@ -340,241 +229,86 @@ public class DataStoreAppConfigMetadata implements DependentComponentFactoryMeta localAppConfig = createDefaultInstance(); } - LOG.debug("{}: Setting currentAppConfig instance: {}", id, localAppConfig); + LOG.debug("{}: Setting currentAppConfig instance: {}", logName(), localAppConfig); // Now publish the app config instance to the volatile field and notify the callback to let the // container know our dependency is now satisfied. currentAppConfig = localAppConfig; - satisfactionCallback.notifyChanged(); + setSatisfied(); } return result; } private DataObject createDefaultInstance() { - YangInstanceIdentifier yangPath = bindingSerializer.toYangInstanceIdentifier(bindingContext.appConfigPath); - - LOG.debug("{}: Creating app config instance from path {}, Qname: {}", id, yangPath, bindingContext.bindingQName); - - SchemaService schemaService = getOSGiService(SchemaService.class); - if(schemaService == null) { - failureMessage = String.format("%s: Could not obtain the SchemaService OSGi service", id); - return null; - } - - SchemaContext schemaContext = schemaService.getGlobalContext(); + try { + ConfigURLProvider inputStreamProvider = appConfigFileName -> { + File appConfigFile = new File(DEFAULT_APP_CONFIG_FILE_PATH, appConfigFileName); + LOG.debug("{}: parsePossibleDefaultAppConfigXMLFile looking for file {}", logName(), + appConfigFile.getAbsolutePath()); - Module module = schemaContext.findModuleByNamespaceAndRevision(bindingContext.bindingQName.getNamespace(), - bindingContext.bindingQName.getRevision()); - if(module == null) { - failureMessage = String.format("%s: Could not obtain the module schema for namespace %s, revision %s", - id, bindingContext.bindingQName.getNamespace(), bindingContext.bindingQName.getRevision()); - return null; - } + if (!appConfigFile.exists()) { + return Optional.absent(); + } - DataSchemaNode dataSchema = module.getDataChildByName(bindingContext.bindingQName); - if(dataSchema == null) { - failureMessage = String.format("%s: Could not obtain the schema for %s", id, bindingContext.bindingQName); - return null; - } + LOG.debug("{}: Found file {}", logName(), appConfigFile.getAbsolutePath()); + + return Optional.of(appConfigFile.toURI().toURL()); + }; + + DataStoreAppConfigDefaultXMLReader reader = new DataStoreAppConfigDefaultXMLReader<>(logName(), + defaultAppConfigFileName, getOSGiService(DOMSchemaService.class), bindingSerializer, bindingContext, + inputStreamProvider); + return reader.createDefaultInstance((schemaContext, dataSchema) -> { + // Fallback if file cannot be read, try XML from Config + NormalizedNode dataNode = parsePossibleDefaultAppConfigElement(schemaContext, dataSchema); + if (dataNode == null) { + // or, as last resort, defaults from the model + return bindingContext.newDefaultNode(dataSchema); + } else { + return dataNode; + } + }); - if(!bindingContext.schemaType.isAssignableFrom(dataSchema.getClass())) { - failureMessage = String.format("%s: Expected schema type %s for %s but actual type is %s", id, - bindingContext.schemaType, bindingContext.bindingQName, dataSchema.getClass()); + } catch (final ConfigXMLReaderException | IOException | SAXException | XMLStreamException + | ParserConfigurationException | URISyntaxException e) { + if (e.getCause() == null) { + setFailureMessage(e.getMessage()); + } else { + setFailure(e.getMessage(), e); + } return null; } - - NormalizedNode dataNode = parsePossibleDefaultAppConfigElement(schemaContext, dataSchema); - if(dataNode == null) { - dataNode = bindingContext.newDefaultNode(dataSchema); - } - - DataObject appConfig = bindingSerializer.fromNormalizedNode(yangPath, dataNode).getValue(); - - if(appConfig == null) { - // This shouldn't happen but need to handle it in case... - failureMessage = String.format("%s: Could not create instance for app config binding %s", - id, bindingContext.appConfigBindingClass); - } - - return appConfig; } @Nullable - private NormalizedNode parsePossibleDefaultAppConfigElement(SchemaContext schemaContext, - DataSchemaNode dataSchema) { - if(defaultAppConfigElement == null) { + private NormalizedNode parsePossibleDefaultAppConfigElement(final SchemaContext schemaContext, + final DataSchemaNode dataSchema) throws URISyntaxException, IOException, ParserConfigurationException, + SAXException, XMLStreamException { + if (defaultAppConfigElement == null) { return null; } - LOG.debug("{}: parsePossibleDefaultAppConfigElement for {}", id, bindingContext.bindingQName); - - DomToNormalizedNodeParserFactory parserFactory = DomToNormalizedNodeParserFactory.getInstance( - XmlUtils.DEFAULT_XML_CODEC_PROVIDER, schemaContext); - + LOG.debug("{}: parsePossibleDefaultAppConfigElement for {}", logName(), bindingContext.bindingQName); - LOG.debug("{}: Got app config schema: {}", id, dataSchema); + LOG.debug("{}: Got app config schema: {}", logName(), dataSchema); NormalizedNode dataNode = bindingContext.parseDataElement(defaultAppConfigElement, dataSchema, - parserFactory); + schemaContext); - LOG.debug("{}: Parsed data node: {}", id, dataNode); + LOG.debug("{}: Parsed data node: {}", logName(), dataNode); return dataNode; } - private void restartContainer() { - BlueprintContainerRestartService restartService = getOSGiService(BlueprintContainerRestartService.class); - if(restartService != null) { - restartService.restartContainerAndDependents(container.getBundleContext().getBundle()); - } - } - - @SuppressWarnings("unchecked") - @Nullable - private T getOSGiService(Class serviceInterface) { - try { - ServiceReference serviceReference = - container.getBundleContext().getServiceReference(serviceInterface); - if(serviceReference == null) { - LOG.warn("{}: {} reference not found", id, serviceInterface.getSimpleName()); - return null; - } - - T service = (T)container.getService(serviceReference); - if(service == null) { - // This could happen on shutdown if the service was already unregistered so we log as debug. - LOG.debug("{}: {} was not found", id, serviceInterface.getSimpleName()); - } - - return service; - } catch(IllegalStateException e) { - // This is thrown if the BundleContext is no longer valid which is possible on shutdown so we - // log as debug. - LOG.debug("{}: Error obtaining {}", id, serviceInterface.getSimpleName(), e); - } - - return null; - } - @Override - public void stopTracking() { - LOG.debug("{}: In stopTracking", id); + public void destroy(final Object instance) { + super.destroy(instance); - stopServiceRecipes(); - } - - @Override - public void destroy(Object instance) { - LOG.debug("{}: In destroy", id); - - if(appConfigChangeListenerReg != null) { + if (appConfigChangeListenerReg != null) { appConfigChangeListenerReg.close(); appConfigChangeListenerReg = null; } - - stopServiceRecipes(); - } - - private void stopServiceRecipes() { - stopServiceRecipe(dataBrokerServiceRecipe); - stopServiceRecipe(bindingCodecServiceRecipe); - dataBrokerServiceRecipe = null; - bindingCodecServiceRecipe = null; } - private void stopServiceRecipe(StaticServiceReferenceRecipe recipe) { - if(recipe != null) { - recipe.stop(); - } - } - - @Override - public String getDependencyDescriptor() { - return dependendencyDesc; - } - - /** - * Internal base class to abstract binding type-specific behavior. - */ - private static abstract class BindingContext { - final InstanceIdentifier appConfigPath; - final Class appConfigBindingClass; - final Class schemaType; - final QName bindingQName; - - protected BindingContext(Class appConfigBindingClass, InstanceIdentifier appConfigPath, - Class schemaType) { - this.appConfigBindingClass = appConfigBindingClass; - this.appConfigPath = appConfigPath; - this.schemaType = schemaType; - - bindingQName = BindingReflections.findQName(appConfigBindingClass); - } - - abstract NormalizedNode parseDataElement(Element element, DataSchemaNode dataSchema, - DomToNormalizedNodeParserFactory parserFactory); - - abstract NormalizedNode newDefaultNode(DataSchemaNode dataSchema); - } - - /** - * BindingContext implementation for a container binding. - */ - private static class ContainerBindingContext extends BindingContext { - ContainerBindingContext(Class appConfigBindingClass) { - super(appConfigBindingClass, InstanceIdentifier.create(appConfigBindingClass), ContainerSchemaNode.class); - } - - @Override - NormalizedNode newDefaultNode(DataSchemaNode dataSchema) { - return ImmutableNodes.containerNode(bindingQName); - } - - @Override - NormalizedNode parseDataElement(Element element, DataSchemaNode dataSchema, - DomToNormalizedNodeParserFactory parserFactory) { - return parserFactory.getContainerNodeParser().parse(Collections.singletonList(element), - (ContainerSchemaNode)dataSchema); - } - } - - /** - * BindingContext implementation for a list binding. - */ - private static class ListBindingContext extends BindingContext { - final String appConfigListKeyValue; - - ListBindingContext(Class appConfigBindingClass, InstanceIdentifier appConfigPath, - String appConfigListKeyValue) { - super(appConfigBindingClass, appConfigPath, ListSchemaNode.class); - this.appConfigListKeyValue = appConfigListKeyValue; - } - - @SuppressWarnings({ "rawtypes", "unchecked" }) - private static ListBindingContext newInstance(Class bindingClass, String listKeyValue) - throws Exception { - // We assume the yang list key type is string. - Identifier keyInstance = (Identifier) bindingClass.getMethod("getKey").getReturnType(). - getConstructor(String.class).newInstance(listKeyValue); - InstanceIdentifier appConfigPath = InstanceIdentifier.builder((Class)bindingClass, keyInstance).build(); - return new ListBindingContext(bindingClass, appConfigPath, listKeyValue); - } - - @Override - NormalizedNode newDefaultNode(DataSchemaNode dataSchema) { - // We assume there's only one key for the list. - List keys = ((ListSchemaNode)dataSchema).getKeyDefinition(); - Preconditions.checkArgument(keys.size() == 1, "Expected only 1 key for list %s", appConfigBindingClass); - QName listKeyQName = keys.iterator().next(); - return ImmutableNodes.mapEntryBuilder(bindingQName, listKeyQName, appConfigListKeyValue).build(); - } - - @Override - NormalizedNode parseDataElement(Element element, DataSchemaNode dataSchema, - DomToNormalizedNodeParserFactory parserFactory) { - return parserFactory.getMapEntryNodeParser().parse(Collections.singletonList(element), - (ListSchemaNode)dataSchema); - } - } }