opendaylight/md-sal/sal-binding-broker/src/main/java/org/opendaylight/controller/sal/binding/impl/forward/DomForwardedBindingBrokerImpl.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.binding.impl.forward;
   9
  10 import java.util.concurrent.ConcurrentHashMap;
  11 import java.util.concurrent.ConcurrentMap;
  12
  13 import org.opendaylight.controller.sal.binding.api.mount.MountProviderInstance;
  14 import org.opendaylight.controller.sal.binding.impl.RootBindingAwareBroker;
  15 import org.opendaylight.controller.sal.binding.impl.connect.dom.BindingDomConnectorDeployer;
  16 import org.opendaylight.controller.sal.binding.impl.connect.dom.BindingIndependentConnector;
  17 import org.opendaylight.yangtools.yang.data.impl.codec.DeserializationException;
  18 import org.opendaylight.controller.sal.core.api.Broker.ProviderSession;
  19 import org.opendaylight.controller.sal.core.api.mount.MountProvisionInstance;
  20 import org.opendaylight.controller.sal.core.api.mount.MountProvisionService;
  21 import org.opendaylight.controller.sal.core.api.mount.MountProvisionListener;
  22 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  23 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  24
  25 public class DomForwardedBindingBrokerImpl extends RootBindingAwareBroker implements DomForwardedBroker {
  26
  27     private ProviderSession domProviderContext;
  28     private BindingIndependentConnector connector;
  29
  30     private MountProvisionService domMountService;
  31
  32     private final DomMountPointForwardingManager domForwardingManager = new DomMountPointForwardingManager();
  33     private final BindingMountPointForwardingManager bindingForwardingManager = new BindingMountPointForwardingManager();
  34
  35     private ConcurrentMap<InstanceIdentifier<?>, BindingIndependentConnector> connectors = new ConcurrentHashMap<>();
  36     private ConcurrentMap<InstanceIdentifier<?>, org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier> forwarded = new ConcurrentHashMap<>();
  37     private ListenerRegistration<MountProvisionListener> domListenerRegistration;
  38     private ListenerRegistration<org.opendaylight.controller.sal.binding.api.mount.MountProviderService.MountProvisionListener> baListenerRegistration;
  39
  40
  41     public DomForwardedBindingBrokerImpl(String instanceName) {
  42         super(instanceName);
  43     }
  44
  45     @Override
  46     public BindingIndependentConnector getConnector() {
  47         return connector;
  48     }
  49
  50     @Override
  51     public ProviderSession getDomProviderContext() {
  52         return domProviderContext;
  53     }
  54
  55     @Override
  56     public void setConnector(BindingIndependentConnector connector) {
  57         this.connector = connector;
  58     }
  59
  60     @Override
  61     public void setDomProviderContext(ProviderSession domProviderContext) {
  62         this.domProviderContext = domProviderContext;
  63     }
  64
  65     @Override
  66     public void startForwarding() {
  67         BindingDomConnectorDeployer.startDataForwarding(getConnector(), getDataBroker(), getDomProviderContext());
  68         BindingDomConnectorDeployer.startRpcForwarding(getConnector(), getRpcProviderRegistry(),
  69                 getDomProviderContext());
  70         BindingDomConnectorDeployer.startNotificationForwarding(getConnector(), getNotificationBroker(),
  71                 getDomProviderContext());
  72         startMountpointForwarding();
  73     }
  74
  75     private void startMountpointForwarding() {
  76         domMountService = getDomProviderContext().getService(MountProvisionService.class);
  77         if (domMountService != null && getMountManager() != null) {
  78             domListenerRegistration = domMountService.registerProvisionListener(domForwardingManager);
  79             baListenerRegistration = getMountManager().registerProvisionListener(bindingForwardingManager);
  80         }
  81     }
  82
  83     public MountProvisionService getDomMountService() {
  84         return domMountService;
  85     }
  86
  87     public void setDomMountService(MountProvisionService domMountService) {
  88         this.domMountService = domMountService;
  89     }
  90
  91     private void tryToDeployConnector(InstanceIdentifier<?> baPath,
  92             org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier biPath) {
  93         org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier previous = forwarded.putIfAbsent(baPath, biPath);
  94         if (previous != null) {
  95             return;
  96         }
  97         MountProviderInstance baMountPoint = getMountManager().createOrGetMountPoint(baPath);
  98         MountProvisionInstance domMountPoint = domMountService.createOrGetMountPoint(biPath);
  99         BindingIndependentConnector connector = createForwarder(baPath, baMountPoint, domMountPoint);
 100         connectors.put(baPath, connector);
 101     }
 102
 103     private BindingIndependentConnector createForwarder(InstanceIdentifier<?> path, MountProviderInstance baMountPoint,
 104             MountProvisionInstance domMountPoint) {
 105         BindingIndependentConnector mountConnector = BindingDomConnectorDeployer.createConnector(getConnector());
 106
 107         BindingDomConnectorDeployer.startDataForwarding(mountConnector, baMountPoint, domMountPoint);
 108         BindingDomConnectorDeployer.startRpcForwarding(mountConnector, baMountPoint, domMountPoint);
 109         BindingDomConnectorDeployer.startNotificationForwarding(mountConnector, baMountPoint, domMountPoint);
 110         // connector.setDomNotificationBroker(domMountPoint);
 111         return mountConnector;
 112     }
 113
 114     public synchronized void tryToDeployDomForwarder(org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier domPath) {
 115         InstanceIdentifier<?> baPath;
 116         try {
 117             baPath = connector.getMappingService().fromDataDom(domPath);
 118             BindingIndependentConnector potentialConnector = connectors.get(baPath);
 119             if (potentialConnector != null) {
 120                 return;
 121             }
 122             tryToDeployConnector(baPath, domPath);
 123         } catch (DeserializationException e) {
 124
 125         }
 126     }
 127
 128     public synchronized void tryToDeployBindingForwarder(InstanceIdentifier<?> baPath) {
 129         BindingIndependentConnector potentialConnector = connectors.get(baPath);
 130         if (potentialConnector != null) {
 131             return;
 132         }
 133         org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier domPath = connector.getMappingService().toDataDom(baPath);
 134         tryToDeployConnector(baPath, domPath);
 135     }
 136
 137     public synchronized void undeployBindingForwarder(InstanceIdentifier<?> baPath) {
 138         // FIXME: Implement closeMountPoint
 139     }
 140
 141     public synchronized void undeployDomForwarder(org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier biPath) {
 142         // FIXME: Implement closeMountPoint
 143     }
 144
 145     private class DomMountPointForwardingManager implements MountProvisionListener {
 146
 147         @Override
 148         public void onMountPointCreated(org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier path) {
 149             tryToDeployDomForwarder(path);
 150         }
 151
 152         @Override
 153         public void onMountPointRemoved(org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier path) {
 154             undeployDomForwarder(path);
 155         }
 156     }
 157
 158     private class BindingMountPointForwardingManager implements
 159             org.opendaylight.controller.sal.binding.api.mount.MountProviderService.MountProvisionListener {
 160
 161         @Override
 162         public void onMountPointCreated(InstanceIdentifier<?> path) {
 163             tryToDeployBindingForwarder(path);
 164         }
 165
 166         @Override
 167         public void onMountPointRemoved(InstanceIdentifier<?> path) {
 168             undeployBindingForwarder(path);
 169         }
 170     }
 171
 172 }