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 static java.util.Objects.requireNonNull;
  11
  12 import com.google.common.util.concurrent.ListenableFuture;
  13 import java.util.concurrent.ConcurrentHashMap;
  14 import java.util.concurrent.ConcurrentMap;
  15 import java.util.concurrent.Executor;
  16 import java.util.concurrent.Semaphore;
  17 import org.eclipse.jdt.annotation.NonNull;
  18 import org.opendaylight.mdsal.binding.api.RpcProviderService;
  19 import org.opendaylight.openflowplugin.api.openflow.device.DeviceContext;
  20 import org.opendaylight.openflowplugin.api.openflow.device.DeviceInfo;
  21 import org.opendaylight.openflowplugin.api.openflow.statistics.StatisticsContext;
  22 import org.opendaylight.openflowplugin.api.openflow.statistics.StatisticsManager;
  23 import org.opendaylight.openflowplugin.impl.datastore.MultipartWriterProvider;
  24 import org.opendaylight.openflowplugin.impl.datastore.MultipartWriterProviderFactory;
  25 import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.ConvertorExecutor;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.openflow.provider.config.rev160510.OpenflowProviderConfig;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.openflowplugin.sm.control.rev150812.ChangeStatisticsWorkModeInput;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.openflowplugin.sm.control.rev150812.ChangeStatisticsWorkModeOutput;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.openflowplugin.sm.control.rev150812.GetStatisticsWorkModeInput;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.openflowplugin.sm.control.rev150812.GetStatisticsWorkModeOutput;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.openflowplugin.sm.control.rev150812.GetStatisticsWorkModeOutputBuilder;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.openflowplugin.sm.control.rev150812.StatisticsManagerControlService;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.openflowplugin.sm.control.rev150812.StatisticsWorkMode;
  34 import org.opendaylight.yangtools.concepts.ObjectRegistration;
  35 import org.opendaylight.yangtools.yang.common.ErrorType;
  36 import org.opendaylight.yangtools.yang.common.RpcResult;
  37 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
  38 import org.slf4j.Logger;
  39 import org.slf4j.LoggerFactory;
  40
  41 public final class StatisticsManagerImpl implements StatisticsManager, StatisticsManagerControlService {
  42
  43     private static final Logger LOG = LoggerFactory.getLogger(StatisticsManagerImpl.class);
  44
  45     private final OpenflowProviderConfig config;
  46     private final ConvertorExecutor converterExecutor;
  47     private final Executor executor;
  48     private final ConcurrentMap<DeviceInfo, StatisticsContext> contexts = new ConcurrentHashMap<>();
  49     private final Semaphore workModeGuard = new Semaphore(1, true);
  50     private final ObjectRegistration<StatisticsManagerControlService> controlServiceRegistration;
  51     private final StatisticsWorkMode workMode = StatisticsWorkMode.COLLECTALL;
  52     private boolean isStatisticsFullyDisabled;
  53
  54     public StatisticsManagerImpl(@NonNull final OpenflowProviderConfig config,
  55                                  @NonNull final RpcProviderService rpcProviderRegistry,
  56                                  final ConvertorExecutor convertorExecutor,
  57                                  @NonNull final Executor executor) {
  58         this.config = config;
  59         this.executor = executor;
  60         converterExecutor = convertorExecutor;
  61         controlServiceRegistration = requireNonNull(rpcProviderRegistry)
  62                 .registerRpcImplementation(StatisticsManagerControlService.class, this);
  63     }
  64
  65     @Override
  66     public ListenableFuture<RpcResult<GetStatisticsWorkModeOutput>> getStatisticsWorkMode(
  67             final GetStatisticsWorkModeInput input) {
  68         return RpcResultBuilder.success(new GetStatisticsWorkModeOutputBuilder()
  69                 .setMode(workMode)
  70                 .build()).buildFuture();
  71     }
  72
  73     @Override
  74     public ListenableFuture<RpcResult<ChangeStatisticsWorkModeOutput>> changeStatisticsWorkMode(
  75             final ChangeStatisticsWorkModeInput input) {
  76         if (workModeGuard.tryAcquire()) {
  77             final StatisticsWorkMode targetWorkMode = input.getMode();
  78             isStatisticsFullyDisabled = StatisticsWorkMode.FULLYDISABLED.equals(targetWorkMode);
  79
  80             contexts.values().forEach(context -> {
  81                 switch (targetWorkMode) {
  82                     case COLLECTALL:
  83                         context.enableGathering();
  84                         break;
  85                     case FULLYDISABLED:
  86                         context.disableGathering();
  87                         break;
  88                     default:
  89                         LOG.warn("Statistics work mode not supported: {}", targetWorkMode);
  90                 }
  91             });
  92
  93             workModeGuard.release();
  94             return RpcResultBuilder.<ChangeStatisticsWorkModeOutput>success().buildFuture();
  95         }
  96
  97         return RpcResultBuilder.<ChangeStatisticsWorkModeOutput>failed()
  98                 .withError(ErrorType.APPLICATION, "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                 executor,
 113                 config,
 114                 !isStatisticsFullyDisabled && config.getIsStatisticsPollingOn(),
 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 }