common/src/main/java/org/opendaylight/transportpce/common/DataStoreContextImpl.java

   1 /*
   2  * Copyright © 2016 AT&T and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.transportpce.common;
   9
  10 import com.google.common.collect.ClassToInstanceMap;
  11 import com.google.common.collect.ImmutableClassToInstanceMap;
  12 import com.google.common.collect.ImmutableMap;
  13 import com.google.common.util.concurrent.ListeningExecutorService;
  14 import com.google.common.util.concurrent.MoreExecutors;
  15 import java.util.LinkedList;
  16 import java.util.List;
  17 import java.util.Map;
  18 import java.util.ServiceLoader;
  19 import java.util.concurrent.Executors;
  20 import org.eclipse.jdt.annotation.NonNull;
  21 import org.opendaylight.binding.runtime.spi.BindingRuntimeHelpers;
  22 import org.opendaylight.mdsal.binding.api.DataBroker;
  23 import org.opendaylight.mdsal.binding.api.NotificationPublishService;
  24 import org.opendaylight.mdsal.binding.api.NotificationService;
  25 import org.opendaylight.mdsal.binding.dom.adapter.AdapterContext;
  26 import org.opendaylight.mdsal.binding.dom.adapter.BindingDOMDataBrokerAdapter;
  27 import org.opendaylight.mdsal.binding.dom.adapter.BindingDOMNotificationPublishServiceAdapter;
  28 import org.opendaylight.mdsal.binding.dom.adapter.BindingDOMNotificationServiceAdapter;
  29 import org.opendaylight.mdsal.binding.dom.adapter.ConstantAdapterContext;
  30 import org.opendaylight.mdsal.binding.dom.codec.api.BindingNormalizedNodeSerializer;
  31 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  32 import org.opendaylight.mdsal.dom.api.DOMDataBroker;
  33 import org.opendaylight.mdsal.dom.api.DOMSchemaService;
  34 import org.opendaylight.mdsal.dom.api.DOMSchemaServiceExtension;
  35 import org.opendaylight.mdsal.dom.broker.DOMNotificationRouter;
  36 import org.opendaylight.mdsal.dom.broker.SerializedDOMDataBroker;
  37 import org.opendaylight.mdsal.dom.spi.store.DOMStore;
  38 import org.opendaylight.mdsal.dom.store.inmemory.InMemoryDOMDataStore;
  39 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  40 import org.opendaylight.yangtools.util.ListenerRegistry;
  41 import org.opendaylight.yangtools.yang.binding.YangModelBindingProvider;
  42 import org.opendaylight.yangtools.yang.binding.YangModuleInfo;
  43 import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
  44 import org.opendaylight.yangtools.yang.model.api.EffectiveModelContextListener;
  45 import org.opendaylight.yangtools.yang.model.api.EffectiveModelContextProvider;
  46 import org.slf4j.Logger;
  47 import org.slf4j.LoggerFactory;
  48
  49 public class DataStoreContextImpl implements DataStoreContext {
  50
  51     private static final Logger LOG = LoggerFactory.getLogger(DataStoreContextImpl.class);
  52
  53     private final Map<LogicalDatastoreType, DOMStore> datastores;
  54     private final SchemaContextHolder mockedSchemaContext;
  55     private final DOMNotificationRouter domNotificationRouter;
  56     private final DOMDataBroker domDataBroker;
  57     private final DataBroker dataBroker;
  58     private final NotificationService notificationService;
  59     private final NotificationPublishService notificationPublishService;
  60
  61
  62     public DataStoreContextImpl() {
  63         this.mockedSchemaContext = new SchemaContextHolder();
  64         this.datastores = createDatastores();
  65         this.domNotificationRouter = DOMNotificationRouter.create(16);
  66         this.domDataBroker = createDOMDataBroker();
  67         this.dataBroker = createDataBroker();
  68         this.notificationService = createNotificationService();
  69         this.notificationPublishService = createNotificationPublishService();
  70         this.mockedSchemaContext.listeners.streamListeners()
  71             .forEach(l -> l.onModelContextUpdated(this.mockedSchemaContext.schemaContext));
  72     }
  73
  74     @Override
  75     public DataBroker getDataBroker() {
  76         return this.dataBroker;
  77     }
  78
  79     @Override
  80     public DOMDataBroker getDOMDataBroker() {
  81         return this.domDataBroker;
  82     }
  83
  84     @Override
  85     public NotificationService createNotificationService() {
  86         return new BindingDOMNotificationServiceAdapter(this.mockedSchemaContext.adapterContext,
  87                 this.domNotificationRouter);
  88     }
  89
  90     @Override
  91     public NotificationPublishService createNotificationPublishService() {
  92         return new BindingDOMNotificationPublishServiceAdapter(this.mockedSchemaContext.adapterContext,
  93                 this.domNotificationRouter);
  94     }
  95
  96     @Override
  97     public EffectiveModelContext getSchemaContext() {
  98         return this.mockedSchemaContext.schemaContext;
  99     }
 100
 101     @Override
 102     public BindingNormalizedNodeSerializer getBindingToNormalizedNodeCodec() {
 103         return this.mockedSchemaContext.adapterContext.currentSerializer();
 104     }
 105
 106     @Override
 107     public NotificationService getNotificationService() {
 108         return this.notificationService;
 109     }
 110
 111     @Override
 112     public NotificationPublishService getNotificationPublishService() {
 113         return this.notificationPublishService;
 114     }
 115
 116     private DOMDataBroker createDOMDataBroker() {
 117         return new SerializedDOMDataBroker(this.datastores,
 118                 MoreExecutors.listeningDecorator(Executors.newSingleThreadExecutor()));
 119     }
 120
 121     private ListeningExecutorService getDataTreeChangeListenerExecutor() {
 122         return MoreExecutors.newDirectExecutorService();
 123     }
 124
 125     private DataBroker createDataBroker() {
 126         return new BindingDOMDataBrokerAdapter(this.mockedSchemaContext.adapterContext, getDOMDataBroker());
 127     }
 128
 129     private Map<LogicalDatastoreType, DOMStore> createDatastores() {
 130         return ImmutableMap.<LogicalDatastoreType, DOMStore>builder()
 131                 .put(LogicalDatastoreType.OPERATIONAL, createOperationalDatastore())
 132                 .put(LogicalDatastoreType.CONFIGURATION, createConfigurationDatastore()).build();
 133     }
 134
 135     private DOMStore createConfigurationDatastore() {
 136         final InMemoryDOMDataStore store = new InMemoryDOMDataStore("CFG", getDataTreeChangeListenerExecutor());
 137         this.mockedSchemaContext.registerSchemaContextListener(store);
 138         return store;
 139     }
 140
 141     private DOMStore createOperationalDatastore() {
 142         final InMemoryDOMDataStore store = new InMemoryDOMDataStore("OPER", getDataTreeChangeListenerExecutor());
 143         this.mockedSchemaContext.registerSchemaContextListener(store);
 144         return store;
 145     }
 146
 147     private static final class SchemaContextHolder implements DOMSchemaService, EffectiveModelContextProvider {
 148
 149         private final EffectiveModelContext schemaContext;
 150         private final ListenerRegistry<EffectiveModelContextListener> listeners;
 151         private final AdapterContext adapterContext;
 152
 153         private SchemaContextHolder() {
 154             List<YangModuleInfo> moduleInfos = loadModuleInfos();
 155             this.schemaContext = BindingRuntimeHelpers.createEffectiveModel(moduleInfos);
 156             this.listeners = ListenerRegistry.create();
 157             this.adapterContext = new ConstantAdapterContext();
 158         }
 159
 160         @Override
 161         public EffectiveModelContext getGlobalContext() {
 162             return this.schemaContext;
 163         }
 164
 165
 166         /**
 167          * Loads all {@link YangModelBindingProvider} on the classpath.
 168          *
 169          * @return list of known {@link YangModuleInfo}
 170          */
 171         private List<YangModuleInfo> loadModuleInfos() {
 172             List<YangModuleInfo> moduleInfos = new LinkedList<>();
 173             ServiceLoader<YangModelBindingProvider> yangProviderLoader =
 174                     ServiceLoader.load(YangModelBindingProvider.class);
 175             for (YangModelBindingProvider yangModelBindingProvider : yangProviderLoader) {
 176                 moduleInfos.add(yangModelBindingProvider.getModuleInfo());
 177                 LOG.debug("Adding [{}] module into known modules", yangModelBindingProvider.getModuleInfo());
 178             }
 179             return moduleInfos;
 180         }
 181
 182         @Override
 183         public ListenerRegistration<EffectiveModelContextListener> registerSchemaContextListener(
 184                 EffectiveModelContextListener listener) {
 185             return this.listeners.register(listener);
 186         }
 187
 188         @Override
 189         public @NonNull EffectiveModelContext getEffectiveModelContext() {
 190             return this.schemaContext;
 191         }
 192
 193         @Override
 194         public @NonNull ClassToInstanceMap<DOMSchemaServiceExtension> getExtensions() {
 195             return ImmutableClassToInstanceMap.of();
 196         }
 197
 198
 199     }
 200 }