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
   9 package org.opendaylight.controller.md.sal.dom.broker.impl.mount;
  10
  11 import java.util.HashMap;
  12 import java.util.Map;
  13
  14 import org.opendaylight.controller.md.sal.dom.api.DOMMountPoint;
  15 import org.opendaylight.controller.md.sal.dom.api.DOMMountPointService;
  16 import org.opendaylight.controller.md.sal.dom.api.DOMService;
  17 import org.opendaylight.controller.md.sal.dom.broker.spi.mount.SimpleDOMMountPoint;
  18 import org.opendaylight.controller.sal.core.api.mount.MountProvisionListener;
  19 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  20 import org.opendaylight.yangtools.concepts.ObjectRegistration;
  21 import org.opendaylight.yangtools.concepts.util.ListenerRegistry;
  22 import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier;
  23 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  24
  25 import com.google.common.base.Optional;
  26 import com.google.common.base.Preconditions;
  27 import com.google.common.collect.ClassToInstanceMap;
  28 import com.google.common.collect.MutableClassToInstanceMap;
  29
  30 public class DOMMountPointServiceImpl implements DOMMountPointService {
  31
  32     private final Map<InstanceIdentifier, SimpleDOMMountPoint> mountPoints = new HashMap<>();
  33
  34     private final ListenerRegistry<MountProvisionListener> listeners = ListenerRegistry.create();
  35
  36     @Override
  37     public Optional<DOMMountPoint> getMountPoint(final InstanceIdentifier path) {
  38         return Optional.<DOMMountPoint>fromNullable(mountPoints.get(path));
  39     }
  40
  41     @Override
  42     public DOMMountPointBuilder createMountPoint(final InstanceIdentifier path) {
  43         Preconditions.checkState(!mountPoints.containsKey(path), "Mount point already exists");
  44         return new DOMMountPointBuilderImpl(path);
  45     }
  46
  47     public void notifyMountCreated(final InstanceIdentifier identifier) {
  48         for (final ListenerRegistration<MountProvisionListener> listener : listeners
  49                 .getListeners()) {
  50             listener.getInstance().onMountPointCreated(identifier);
  51         }
  52     }
  53
  54     @Override
  55     public ListenerRegistration<MountProvisionListener> registerProvisionListener(
  56             final MountProvisionListener listener) {
  57         return listeners.register(listener);
  58     }
  59
  60     public ObjectRegistration<DOMMountPoint> registerMountPoint(final SimpleDOMMountPoint mountPoint) {
  61         synchronized (mountPoints) {
  62             Preconditions.checkState(!mountPoints.containsKey(mountPoint.getIdentifier()), "Mount point already exists");
  63             mountPoints.put(mountPoint.getIdentifier(), mountPoint);
  64         }
  65         notifyMountCreated(mountPoint.getIdentifier());
  66
  67         // FIXME this shouldnt be null
  68         return null;
  69     }
  70
  71     public class DOMMountPointBuilderImpl implements DOMMountPointBuilder {
  72
  73         ClassToInstanceMap<DOMService> services = MutableClassToInstanceMap.create();
  74         private SimpleDOMMountPoint mountPoint;
  75         private final InstanceIdentifier path;
  76         private SchemaContext schemaContext;
  77
  78         public DOMMountPointBuilderImpl(final InstanceIdentifier path) {
  79             this.path = path;
  80         }
  81
  82         @Override
  83         public <T extends DOMService> DOMMountPointBuilder addService(final Class<T> type, final T impl) {
  84             services.putInstance(type, impl);
  85             return this;
  86         }
  87
  88         @Override
  89         public DOMMountPointBuilder addInitialSchemaContext(final SchemaContext ctx) {
  90             schemaContext = ctx;
  91             return this;
  92         }
  93
  94         @Override
  95         public ObjectRegistration<DOMMountPoint> register() {
  96             Preconditions.checkState(mountPoint == null, "Mount point is already built.");
  97             mountPoint = SimpleDOMMountPoint.create(path, services,schemaContext);
  98             return registerMountPoint(mountPoint);
  99         }
 100     }
 101 }