opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/md/sal/dom/broker/impl/mount/DOMMountPointServiceImpl.java

   1 /*
   2  * Copyright (c) 2014 Cisco Systems, Inc. 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.controller.md.sal.dom.broker.impl.mount;
   9
  10 import static java.util.Objects.requireNonNull;
  11
  12 import com.google.common.annotations.VisibleForTesting;
  13 import com.google.common.base.Optional;
  14 import com.google.common.base.Preconditions;
  15 import com.google.common.collect.ClassToInstanceMap;
  16 import com.google.common.collect.ImmutableMap;
  17 import com.google.common.collect.MutableClassToInstanceMap;
  18 import java.util.Map;
  19 import java.util.Map.Entry;
  20 import org.opendaylight.controller.md.sal.dom.api.DOMActionService;
  21 import org.opendaylight.controller.md.sal.dom.api.DOMDataBroker;
  22 import org.opendaylight.controller.md.sal.dom.api.DOMMountPoint;
  23 import org.opendaylight.controller.md.sal.dom.api.DOMMountPointService;
  24 import org.opendaylight.controller.md.sal.dom.api.DOMNotificationService;
  25 import org.opendaylight.controller.md.sal.dom.api.DOMRpcService;
  26 import org.opendaylight.controller.md.sal.dom.api.DOMService;
  27 import org.opendaylight.controller.md.sal.dom.broker.spi.mount.SimpleDOMMountPoint;
  28 import org.opendaylight.controller.sal.core.compat.DOMDataBrokerAdapter;
  29 import org.opendaylight.controller.sal.core.compat.DOMMountPointAdapter;
  30 import org.opendaylight.controller.sal.core.compat.DOMNotificationServiceAdapter;
  31 import org.opendaylight.controller.sal.core.compat.DOMRpcServiceAdapter;
  32 import org.opendaylight.mdsal.dom.api.DOMMountPointListener;
  33 import org.opendaylight.yangtools.concepts.AbstractObjectRegistration;
  34 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  35 import org.opendaylight.yangtools.concepts.ObjectRegistration;
  36 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  37 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  38
  39 public class DOMMountPointServiceImpl implements DOMMountPointService {
  40     private abstract static class CompatFactory<M extends org.opendaylight.mdsal.dom.api.DOMService,
  41             C extends DOMService> {
  42         private final Class<C> controllerClass;
  43         private final Class<M> mdsalClass;
  44
  45         CompatFactory(final Class<C> controllerClass, final Class<M> mdsalClass) {
  46             this.controllerClass = requireNonNull(controllerClass);
  47             this.mdsalClass = requireNonNull(mdsalClass);
  48         }
  49
  50         final void addService(final org.opendaylight.mdsal.dom.api.DOMMountPointService.DOMMountPointBuilder builder,
  51                 final ClassToInstanceMap<DOMService> services) {
  52             if (!services.containsKey(mdsalClass)) {
  53                 final C controllerService = services.getInstance(controllerClass);
  54                 if (controllerService != null) {
  55                     final M mdsalService = createService(controllerService);
  56                     if (mdsalService != null) {
  57                         builder.addService(mdsalClass, mdsalService);
  58                     }
  59                 }
  60             }
  61         }
  62
  63         abstract M createService(C delegate);
  64     }
  65
  66     private static final Map<Class<? extends DOMService>, CompatFactory<?, ?>> KNOWN_SERVICES = ImmutableMap.of(
  67         DOMActionService.class, new CompatFactory<org.opendaylight.mdsal.dom.api.DOMActionService, DOMActionService>(
  68                 DOMActionService.class, org.opendaylight.mdsal.dom.api.DOMActionService.class) {
  69             @Override
  70             org.opendaylight.mdsal.dom.api.DOMActionService createService(final DOMActionService delegate) {
  71                 return delegate;
  72             }
  73         },
  74         DOMDataBroker.class, new CompatFactory<org.opendaylight.mdsal.dom.api.DOMDataBroker, DOMDataBroker>(
  75                 DOMDataBroker.class, org.opendaylight.mdsal.dom.api.DOMDataBroker.class) {
  76             @Override
  77             org.opendaylight.mdsal.dom.api.DOMDataBroker createService(final DOMDataBroker delegate) {
  78                 return new DOMDataBrokerAdapter(delegate);
  79             }
  80         },
  81         DOMNotificationService.class, new CompatFactory<org.opendaylight.mdsal.dom.api.DOMNotificationService,
  82                 DOMNotificationService>(DOMNotificationService.class,
  83                         org.opendaylight.mdsal.dom.api.DOMNotificationService.class) {
  84             @Override
  85             org.opendaylight.mdsal.dom.api.DOMNotificationService createService(final DOMNotificationService delegate) {
  86                 return new DOMNotificationServiceAdapter(delegate);
  87             }
  88         },
  89         DOMRpcService.class, new CompatFactory<org.opendaylight.mdsal.dom.api.DOMRpcService, DOMRpcService>(
  90                 DOMRpcService.class, org.opendaylight.mdsal.dom.api.DOMRpcService.class) {
  91             @Override
  92             org.opendaylight.mdsal.dom.api.DOMRpcService createService(final DOMRpcService delegate) {
  93                 return new DOMRpcServiceAdapter(delegate);
  94             }
  95         });
  96
  97     private final org.opendaylight.mdsal.dom.api.DOMMountPointService delegate;
  98
  99     @VisibleForTesting
 100     public DOMMountPointServiceImpl() {
 101         this(new org.opendaylight.mdsal.dom.broker.DOMMountPointServiceImpl());
 102     }
 103
 104     public DOMMountPointServiceImpl(final org.opendaylight.mdsal.dom.api.DOMMountPointService delegate) {
 105         this.delegate = delegate;
 106     }
 107
 108     @Override
 109     public Optional<DOMMountPoint> getMountPoint(final YangInstanceIdentifier path) {
 110         return Optional.fromJavaUtil(delegate.getMountPoint(path).map(DOMMountPointAdapter::new));
 111     }
 112
 113     @Override
 114     public DOMMountPointBuilder createMountPoint(final YangInstanceIdentifier path) {
 115         return new DOMMountPointBuilderImpl(path);
 116     }
 117
 118     @Override
 119     public ListenerRegistration<DOMMountPointListener> registerProvisionListener(final DOMMountPointListener listener) {
 120         return delegate.registerProvisionListener(listener);
 121     }
 122
 123     @SuppressWarnings("unchecked")
 124     ObjectRegistration<DOMMountPoint> registerMountPoint(final SimpleDOMMountPoint mountPoint) {
 125         final org.opendaylight.mdsal.dom.api.DOMMountPointService.DOMMountPointBuilder delegateBuilder =
 126                 delegate.createMountPoint(mountPoint.getIdentifier());
 127
 128         if (mountPoint.getSchemaContext() != null) {
 129             delegateBuilder.addInitialSchemaContext(mountPoint.getSchemaContext());
 130         }
 131
 132         final ClassToInstanceMap<DOMService> myServices = mountPoint.getServices();
 133         for (Entry<Class<? extends DOMService>, DOMService> entry : myServices.entrySet()) {
 134             delegateBuilder.addService((Class<DOMService>)entry.getKey(), entry.getValue());
 135
 136             final CompatFactory<?, ?> compat = KNOWN_SERVICES.get(entry.getKey());
 137             if (compat != null) {
 138                 compat.addService(delegateBuilder, myServices);
 139             }
 140         }
 141
 142         final ObjectRegistration<org.opendaylight.mdsal.dom.api.DOMMountPoint> delegateReg = delegateBuilder.register();
 143         return new AbstractObjectRegistration<DOMMountPoint>(mountPoint) {
 144             @Override
 145             protected void removeRegistration() {
 146                 delegateReg.close();
 147             }
 148         };
 149     }
 150
 151     public class DOMMountPointBuilderImpl implements DOMMountPointBuilder {
 152         private final ClassToInstanceMap<DOMService> services = MutableClassToInstanceMap.create();
 153         private final YangInstanceIdentifier path;
 154         private SimpleDOMMountPoint mountPoint;
 155         private SchemaContext schemaContext;
 156
 157         public DOMMountPointBuilderImpl(final YangInstanceIdentifier path) {
 158             this.path = path;
 159         }
 160
 161         @Override
 162         public <T extends DOMService> DOMMountPointBuilder addService(final Class<T> type, final T impl) {
 163             services.putInstance(type, impl);
 164             return this;
 165         }
 166
 167         @Override
 168         public DOMMountPointBuilder addInitialSchemaContext(final SchemaContext ctx) {
 169             schemaContext = ctx;
 170             return this;
 171         }
 172
 173         @Override
 174         public ObjectRegistration<DOMMountPoint> register() {
 175             Preconditions.checkState(mountPoint == null, "Mount point is already built.");
 176             mountPoint = SimpleDOMMountPoint.create(path, services, schemaContext);
 177             return registerMountPoint(mountPoint);
 178         }
 179     }
 180 }