openflowplugin-impl/src/main/java/org/opendaylight/openflowplugin/impl/statistics/services/direct/OpendaylightDirectStatisticsServiceImpl.java

   1 /*
   2  * Copyright (c) 2015 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.openflowplugin.impl.statistics.services.direct;
  10
  11 import org.opendaylight.yang.gen.v1.urn.opendaylight.direct.statistics.rev160511.GetFlowStatisticsInput;
  12 import org.opendaylight.yang.gen.v1.urn.opendaylight.direct.statistics.rev160511.GetFlowStatisticsOutput;
  13 import org.opendaylight.yang.gen.v1.urn.opendaylight.direct.statistics.rev160511.GetGroupStatisticsInput;
  14 import org.opendaylight.yang.gen.v1.urn.opendaylight.direct.statistics.rev160511.GetGroupStatisticsOutput;
  15 import org.opendaylight.yang.gen.v1.urn.opendaylight.direct.statistics.rev160511.GetMeterStatisticsInput;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.direct.statistics.rev160511.GetMeterStatisticsOutput;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.direct.statistics.rev160511.GetNodeConnectorStatisticsInput;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.direct.statistics.rev160511.GetNodeConnectorStatisticsOutput;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.direct.statistics.rev160511.GetQueueStatisticsInput;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.direct.statistics.rev160511.GetQueueStatisticsOutput;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.direct.statistics.rev160511.OpendaylightDirectStatisticsService;
  22 import org.opendaylight.yangtools.yang.binding.DataObject;
  23 import org.opendaylight.yangtools.yang.common.RpcError;
  24 import org.opendaylight.yangtools.yang.common.RpcResult;
  25 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
  26
  27 import java.util.Optional;
  28 import java.util.concurrent.Future;
  29
  30 /**
  31  * The Opendaylight direct statistics service.
  32  * This service handles RPC requests, sends them to registered handlers and returns their replies.
  33  */
  34 public class OpendaylightDirectStatisticsServiceImpl implements OpendaylightDirectStatisticsService {
  35     private final OpendaylightDirectStatisticsServiceProvider provider;
  36
  37     /**
  38      * Instantiates a new Opendaylight direct statistics service.
  39      *
  40      * @param provider the openflow direct statistics service provider
  41      */
  42     public OpendaylightDirectStatisticsServiceImpl(final OpendaylightDirectStatisticsServiceProvider provider) {
  43         this.provider = provider;
  44     }
  45
  46     @Override
  47     public Future<RpcResult<GetGroupStatisticsOutput>> getGroupStatistics(GetGroupStatisticsInput input) {
  48         final Optional<GroupDirectStatisticsService> service = provider.lookup(GroupDirectStatisticsService.class);
  49
  50         if (!service.isPresent()) {
  51             return missingImplementation(GroupDirectStatisticsService.class);
  52         }
  53
  54         return service.get().handleAndReply(input);
  55     }
  56
  57     @Override
  58     public Future<RpcResult<GetQueueStatisticsOutput>> getQueueStatistics(GetQueueStatisticsInput input) {
  59         final Optional<QueueDirectStatisticsService> service = provider.lookup(QueueDirectStatisticsService.class);
  60
  61         if (!service.isPresent()) {
  62             return missingImplementation(QueueDirectStatisticsService.class);
  63         }
  64
  65         return service.get().handleAndReply(input);
  66     }
  67
  68     @Override
  69     public Future<RpcResult<GetFlowStatisticsOutput>> getFlowStatistics(GetFlowStatisticsInput input) {
  70         final Optional<FlowDirectStatisticsService> service = provider.lookup(FlowDirectStatisticsService.class);
  71
  72         if (!service.isPresent()) {
  73             return missingImplementation(FlowDirectStatisticsService.class);
  74         }
  75
  76         return service.get().handleAndReply(input);
  77     }
  78
  79     @Override
  80     public Future<RpcResult<GetMeterStatisticsOutput>> getMeterStatistics(GetMeterStatisticsInput input) {
  81         final Optional<MeterDirectStatisticsService> service = provider.lookup(MeterDirectStatisticsService.class);
  82
  83         if (!service.isPresent()) {
  84             return missingImplementation(MeterDirectStatisticsService.class);
  85         }
  86
  87         return service.get().handleAndReply(input);
  88     }
  89
  90     @Override
  91     public Future<RpcResult<GetNodeConnectorStatisticsOutput>> getNodeConnectorStatistics(GetNodeConnectorStatisticsInput input) {
  92         final Optional<NodeConnectorDirectStatisticsService> service = provider.lookup(NodeConnectorDirectStatisticsService.class);
  93
  94         if (!service.isPresent()) {
  95             return missingImplementation(NodeConnectorDirectStatisticsService.class);
  96         }
  97
  98         return service.get().handleAndReply(input);
  99     }
 100
 101     private <T extends DataObject> Future<RpcResult<T>> missingImplementation(Class service) {
 102         return RpcResultBuilder.<T>failed().withError(
 103                 RpcError.ErrorType.APPLICATION,
 104                 String.format("No implementation found for direct statistics service %s.", service.getCanonicalName()))
 105                 .buildFuture();
 106     }
 107 }