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