openflowplugin-impl/src/main/java/org/opendaylight/openflowplugin/impl/statistics/StatisticsManagerImpl.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 package org.opendaylight.openflowplugin.impl.statistics;
   9
  10 import com.google.common.base.Preconditions;
  11 import com.google.common.util.concurrent.ListenableFuture;
  12 import com.google.common.util.concurrent.ListeningExecutorService;
  13 import java.util.concurrent.ConcurrentHashMap;
  14 import java.util.concurrent.ConcurrentMap;
  15 import java.util.concurrent.Semaphore;
  16 import javax.annotation.Nonnull;
  17 import org.opendaylight.mdsal.binding.api.RpcProviderService;
  18 import org.opendaylight.openflowplugin.api.openflow.device.DeviceContext;
  19 import org.opendaylight.openflowplugin.api.openflow.device.DeviceInfo;
  20 import org.opendaylight.openflowplugin.api.openflow.statistics.StatisticsContext;
  21 import org.opendaylight.openflowplugin.api.openflow.statistics.StatisticsManager;
  22 import org.opendaylight.openflowplugin.impl.datastore.MultipartWriterProvider;
  23 import org.opendaylight.openflowplugin.impl.datastore.MultipartWriterProviderFactory;
  24 import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.ConvertorExecutor;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.openflow.provider.config.rev160510.OpenflowProviderConfig;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.openflowplugin.sm.control.rev150812.ChangeStatisticsWorkModeInput;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.openflowplugin.sm.control.rev150812.ChangeStatisticsWorkModeOutput;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.openflowplugin.sm.control.rev150812.GetStatisticsWorkModeInput;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.openflowplugin.sm.control.rev150812.GetStatisticsWorkModeOutput;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.openflowplugin.sm.control.rev150812.GetStatisticsWorkModeOutputBuilder;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.openflowplugin.sm.control.rev150812.StatisticsManagerControlService;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.openflowplugin.sm.control.rev150812.StatisticsWorkMode;
  33 import org.opendaylight.yangtools.concepts.ObjectRegistration;
  34 import org.opendaylight.yangtools.yang.common.RpcError;
  35 import org.opendaylight.yangtools.yang.common.RpcResult;
  36 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
  37 import org.slf4j.Logger;
  38 import org.slf4j.LoggerFactory;
  39
  40 public class StatisticsManagerImpl implements StatisticsManager, StatisticsManagerControlService {
  41
  42     private static final Logger LOG = LoggerFactory.getLogger(StatisticsManagerImpl.class);
  43
  44     private final OpenflowProviderConfig config;
  45     private final ConvertorExecutor converterExecutor;
  46     private final ConcurrentMap<DeviceInfo, StatisticsContext> contexts = new ConcurrentHashMap<>();
  47     private final Semaphore workModeGuard = new Semaphore(1, true);
  48     private final ObjectRegistration<StatisticsManagerControlService> controlServiceRegistration;
  49     private final ListeningExecutorService executorService;
  50     private final StatisticsWorkMode workMode = StatisticsWorkMode.COLLECTALL;
  51     private boolean isStatisticsFullyDisabled;
  52
  53     public StatisticsManagerImpl(@Nonnull final OpenflowProviderConfig config,
  54                                  @Nonnull final RpcProviderService rpcProviderRegistry,
  55                                  final ConvertorExecutor convertorExecutor,
  56                                  @Nonnull final ListeningExecutorService executorService) {
  57         this.config = config;
  58         this.converterExecutor = convertorExecutor;
  59         this.controlServiceRegistration = Preconditions.checkNotNull(rpcProviderRegistry
  60                 .registerRpcImplementation(StatisticsManagerControlService.class, this));
  61         this.executorService = executorService;
  62     }
  63
  64     @Override
  65     public ListenableFuture<RpcResult<GetStatisticsWorkModeOutput>> getStatisticsWorkMode(
  66             GetStatisticsWorkModeInput input) {
  67         return RpcResultBuilder.success(new GetStatisticsWorkModeOutputBuilder()
  68                 .setMode(workMode)
  69                 .build()).buildFuture();
  70     }
  71
  72     @Override
  73     public ListenableFuture<RpcResult<ChangeStatisticsWorkModeOutput>> changeStatisticsWorkMode(
  74             ChangeStatisticsWorkModeInput input) {
  75         if (workModeGuard.tryAcquire()) {
  76             final StatisticsWorkMode targetWorkMode = input.getMode();
  77             isStatisticsFullyDisabled = StatisticsWorkMode.FULLYDISABLED.equals(targetWorkMode);
  78
  79             contexts.values().forEach(context -> {
  80                 switch (targetWorkMode) {
  81                     case COLLECTALL:
  82                         context.enableGathering();
  83                         break;
  84                     case FULLYDISABLED:
  85                         context.disableGathering();
  86                         break;
  87                     default:
  88                         LOG.warn("Statistics work mode not supported: {}", targetWorkMode);
  89                 }
  90             });
  91
  92             workModeGuard.release();
  93             return RpcResultBuilder.<ChangeStatisticsWorkModeOutput>success().buildFuture();
  94         }
  95
  96         return RpcResultBuilder.<ChangeStatisticsWorkModeOutput>failed()
  97                 .withError(RpcError.ErrorType.APPLICATION,
  98                         "Statistics work mode change is already in progress")
  99                 .buildFuture();
 100     }
 101
 102     @Override
 103     public StatisticsContext createContext(@Nonnull final DeviceContext deviceContext,
 104                                            final boolean useReconciliationFramework) {
 105         final MultipartWriterProvider statisticsWriterProvider = MultipartWriterProviderFactory
 106                 .createDefaultProvider(deviceContext);
 107
 108         final StatisticsContext statisticsContext = new StatisticsContextImpl<>(
 109                 deviceContext,
 110                 converterExecutor,
 111                 statisticsWriterProvider,
 112                 executorService,
 113                 config,
 114                 !isStatisticsFullyDisabled && config.isIsStatisticsPollingOn(),
 115                 useReconciliationFramework);
 116
 117         contexts.put(deviceContext.getDeviceInfo(), statisticsContext);
 118         return statisticsContext;
 119     }
 120
 121     @Override
 122     public void onDeviceRemoved(final DeviceInfo deviceInfo) {
 123         contexts.remove(deviceInfo);
 124         LOG.debug("Statistics context removed for node {}", deviceInfo);
 125     }
 126
 127     @Override
 128     public void close() {
 129         isStatisticsFullyDisabled = true;
 130         controlServiceRegistration.close();
 131
 132         for (StatisticsContext context : contexts.values()) {
 133             context.close();
 134         }
 135
 136         contexts.clear();
 137     }
 138 }