opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/sal/dom/broker/MountPointManagerImpl.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.sal.dom.broker;
   9
  10 import static com.google.common.base.Preconditions.checkState;
  11
  12 import java.util.concurrent.ConcurrentHashMap;
  13 import java.util.concurrent.ConcurrentMap;
  14
  15 import org.opendaylight.controller.sal.core.api.data.DataProviderService;
  16 import org.opendaylight.controller.sal.core.api.mount.MountProvisionInstance;
  17 import org.opendaylight.controller.sal.core.api.mount.MountProvisionService;
  18 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  19 import org.opendaylight.yangtools.concepts.util.ListenerRegistry;
  20 import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier;
  21
  22 public class MountPointManagerImpl implements MountProvisionService {
  23
  24     private final ListenerRegistry<MountProvisionListener> listeners =
  25             ListenerRegistry.create();
  26     private final ConcurrentMap<InstanceIdentifier, MountPointImpl> mounts =
  27             new ConcurrentHashMap<>();
  28     private DataProviderService dataBroker = null;
  29
  30     @Override
  31     public MountProvisionInstance createMountPoint(final InstanceIdentifier path) {
  32         checkState(!mounts.containsKey(path), "Mount already created");
  33         final MountPointImpl mount = new MountPointImpl(path);
  34         registerMountPoint(mount);
  35         mounts.put(path, mount);
  36         notifyMountCreated(path);
  37         return mount;
  38     }
  39
  40     public void notifyMountCreated(final InstanceIdentifier identifier) {
  41         for (final ListenerRegistration<MountProvisionListener> listener : listeners
  42                 .getListeners()) {
  43             listener.getInstance().onMountPointCreated(identifier);
  44         }
  45     }
  46
  47     public Object registerMountPoint(final MountPointImpl impl) {
  48         // FIXME: Why is thie commented out? Either we need it or we don't
  49         // dataBroker?.registerConfigurationReader(impl.mountPath,impl.readWrapper);
  50         // dataBroker?.registerOperationalReader(impl.mountPath,impl.readWrapper);
  51         return null;
  52     }
  53
  54     @Override
  55     public MountProvisionInstance createOrGetMountPoint(
  56             final InstanceIdentifier path) {
  57         final MountPointImpl mount = mounts.get(path);
  58         if (mount == null) {
  59             return createMountPoint(path);
  60         }
  61         return mount;
  62     }
  63
  64     @Override
  65     public MountProvisionInstance getMountPoint(final InstanceIdentifier path) {
  66         return mounts.get(path);
  67     }
  68
  69     /**
  70      * @return the dataBroker
  71      */
  72     public DataProviderService getDataBroker() {
  73         return dataBroker;
  74     }
  75
  76     /**
  77      * @param dataBroker
  78      *            the dataBroker to set
  79      */
  80     public void setDataBroker(final DataProviderService dataBroker) {
  81         this.dataBroker = dataBroker;
  82     }
  83
  84     @Override
  85     public ListenerRegistration<MountProvisionListener> registerProvisionListener(
  86             final MountProvisionListener listener) {
  87         return listeners.register(listener);
  88     }
  89 }