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.yangtools.concepts.ObjectRegistration;
  19 import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier;
  20 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  21
  22 import com.google.common.base.Optional;
  23 import com.google.common.base.Preconditions;
  24 import com.google.common.collect.ClassToInstanceMap;
  25 import com.google.common.collect.MutableClassToInstanceMap;
  26
  27 public class DOMMountPointServiceImpl implements DOMMountPointService {
  28
  29     private final Map<InstanceIdentifier, SimpleDOMMountPoint> mountPoints = new HashMap<>();
  30
  31     @Override
  32     public Optional<DOMMountPoint> getMountPoint(final InstanceIdentifier path) {
  33         return Optional.<DOMMountPoint>fromNullable(mountPoints.get(path));
  34     }
  35
  36     @Override
  37     public DOMMountPointBuilder createMountPoint(final InstanceIdentifier path) {
  38         Preconditions.checkState(!mountPoints.containsKey(path), "Mount point already exists");
  39         return new DOMMountPointBuilderImpl(path);
  40     }
  41
  42     public ObjectRegistration<DOMMountPoint> registerMountPoint(final SimpleDOMMountPoint mountPoint) {
  43         synchronized (mountPoints) {
  44             Preconditions.checkState(!mountPoints.containsKey(mountPoint.getIdentifier()), "Mount point already exists");
  45             mountPoints.put(mountPoint.getIdentifier(), mountPoint);
  46         }
  47         return null;
  48     }
  49
  50     public class DOMMountPointBuilderImpl implements DOMMountPointBuilder {
  51
  52         ClassToInstanceMap<DOMService> services = MutableClassToInstanceMap.create();
  53         private SimpleDOMMountPoint mountPoint;
  54         private final InstanceIdentifier path;
  55         private SchemaContext schemaContext;
  56
  57         public DOMMountPointBuilderImpl(final InstanceIdentifier path) {
  58             this.path = path;
  59         }
  60
  61         @Override
  62         public <T extends DOMService> DOMMountPointBuilder addService(final Class<T> type, final T impl) {
  63             services.putInstance(type, impl);
  64             return this;
  65         }
  66
  67         @Override
  68         public DOMMountPointBuilder addInitialSchemaContext(final SchemaContext ctx) {
  69             schemaContext = ctx;
  70             return this;
  71         }
  72
  73         @Override
  74         public ObjectRegistration<DOMMountPoint> register() {
  75             Preconditions.checkState(mountPoint == null, "Mount point is already built.");
  76             mountPoint = SimpleDOMMountPoint.create(path, services,schemaContext);
  77             return registerMountPoint(mountPoint);
  78         }
  79     }
  80 }