restconf/restconf-nb-rfc8040/src/main/java/org/opendaylight/restconf/nb/rfc8040/RestConnectorProvider.java

   1 /*
   2  * Copyright (c) 2016 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.restconf.nb.rfc8040;
  10
  11 import com.google.common.base.Preconditions;
  12 import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
  13 import org.opendaylight.controller.md.sal.dom.api.DOMDataBroker;
  14 import org.opendaylight.controller.md.sal.dom.api.DOMMountPointService;
  15 import org.opendaylight.controller.md.sal.dom.api.DOMNotificationService;
  16 import org.opendaylight.controller.md.sal.dom.api.DOMRpcService;
  17 import org.opendaylight.mdsal.dom.api.DOMSchemaService;
  18 import org.opendaylight.restconf.nb.rfc8040.handlers.DOMDataBrokerHandler;
  19 import org.opendaylight.restconf.nb.rfc8040.handlers.DOMMountPointServiceHandler;
  20 import org.opendaylight.restconf.nb.rfc8040.handlers.NotificationServiceHandler;
  21 import org.opendaylight.restconf.nb.rfc8040.handlers.RpcServiceHandler;
  22 import org.opendaylight.restconf.nb.rfc8040.handlers.SchemaContextHandler;
  23 import org.opendaylight.restconf.nb.rfc8040.handlers.TransactionChainHandler;
  24 import org.opendaylight.restconf.nb.rfc8040.services.wrapper.ServiceWrapper;
  25 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  26 import org.opendaylight.yangtools.yang.model.api.SchemaContextListener;
  27 import org.slf4j.Logger;
  28 import org.slf4j.LoggerFactory;
  29
  30 /**
  31  * Provider for restconf draft18.
  32  *
  33  */
  34 public class RestConnectorProvider<T extends ServiceWrapper> implements RestconfConnector, AutoCloseable {
  35
  36     private static final Logger LOG = LoggerFactory.getLogger(RestConnectorProvider.class);
  37
  38     @SuppressFBWarnings("ST_WRITE_TO_STATIC_FROM_INSTANCE_METHOD")
  39     private static volatile DOMMountPointServiceHandler mountPointServiceHandler;
  40
  41     private final DOMRpcService rpcService;
  42     private final DOMNotificationService notificationService;
  43     private final DOMMountPointService mountPointService;
  44     private final DOMSchemaService domSchemaService;
  45     private final TransactionChainHandler transactionChainHandler;
  46     private final DOMDataBroker dataBroker;
  47
  48     private ListenerRegistration<SchemaContextListener> listenerRegistration;
  49     private SchemaContextHandler schemaCtxHandler;
  50     private final T wrapperServices;
  51
  52     public RestConnectorProvider(final DOMDataBroker domDataBroker, final DOMSchemaService domSchemaService,
  53             final DOMRpcService rpcService, final DOMNotificationService notificationService,
  54             final DOMMountPointService mountPointService, final TransactionChainHandler transactionChainHandler,
  55             final T wrapperServices) {
  56         this.wrapperServices = wrapperServices;
  57         this.domSchemaService = Preconditions.checkNotNull(domSchemaService);
  58         this.rpcService = Preconditions.checkNotNull(rpcService);
  59         this.notificationService = Preconditions.checkNotNull(notificationService);
  60         this.mountPointService = Preconditions.checkNotNull(mountPointService);
  61         this.transactionChainHandler = Preconditions.checkNotNull(transactionChainHandler);
  62         this.dataBroker = Preconditions.checkNotNull(domDataBroker);
  63     }
  64
  65     public synchronized void start() {
  66         mountPointServiceHandler = new DOMMountPointServiceHandler(mountPointService);
  67
  68         final DOMDataBrokerHandler brokerHandler = new DOMDataBrokerHandler(dataBroker);
  69
  70         this.schemaCtxHandler = new SchemaContextHandler(transactionChainHandler);
  71         this.listenerRegistration = domSchemaService.registerSchemaContextListener(this.schemaCtxHandler);
  72
  73         final RpcServiceHandler rpcServiceHandler = new RpcServiceHandler(rpcService);
  74
  75         final NotificationServiceHandler notificationServiceHandler =
  76                 new NotificationServiceHandler(notificationService);
  77
  78         if (wrapperServices != null) {
  79             wrapperServices.setHandlers(this.schemaCtxHandler, RestConnectorProvider.mountPointServiceHandler,
  80                     transactionChainHandler, brokerHandler, rpcServiceHandler,
  81                     notificationServiceHandler, domSchemaService);
  82         }
  83     }
  84
  85     public DOMMountPointServiceHandler getMountPointServiceHandler() {
  86         return mountPointServiceHandler;
  87     }
  88
  89     /**
  90      * Get current {@link DOMMountPointService} from {@link DOMMountPointServiceHandler}.
  91      * @return {@link DOMMountPointService}
  92      */
  93     public static DOMMountPointService getMountPointService() {
  94         return mountPointServiceHandler.get();
  95     }
  96
  97     @Override
  98     public void close() throws Exception {
  99         // close registration
 100         if (this.listenerRegistration != null) {
 101             this.listenerRegistration.close();
 102         }
 103
 104         mountPointServiceHandler = null;
 105     }
 106 }