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