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.annotations.VisibleForTesting;
  11 import com.google.common.util.concurrent.ListenableFuture;
  12 import java.util.concurrent.ConcurrentHashMap;
  13 import java.util.concurrent.ConcurrentMap;
  14 import java.util.concurrent.Executor;
  15 import java.util.concurrent.Semaphore;
  16 import org.eclipse.jdt.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.ChangeStatisticsWorkMode;
  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.GetStatisticsWorkMode;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.openflowplugin.sm.control.rev150812.GetStatisticsWorkModeInput;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.openflowplugin.sm.control.rev150812.GetStatisticsWorkModeOutput;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.openflowplugin.sm.control.rev150812.GetStatisticsWorkModeOutputBuilder;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.openflowplugin.sm.control.rev150812.StatisticsWorkMode;
  34 import org.opendaylight.yangtools.concepts.Registration;
  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 {
  42     private static final Logger LOG = LoggerFactory.getLogger(StatisticsManagerImpl.class);
  43
  44     @VisibleForTesting
  45     final ConcurrentMap<DeviceInfo, StatisticsContext> contexts = new ConcurrentHashMap<>();
  46
  47     private final OpenflowProviderConfig config;
  48     private final ConvertorExecutor converterExecutor;
  49     private final Executor executor;
  50     private final Semaphore workModeGuard = new Semaphore(1, true);
  51     private final Registration controlServiceRegistration;
  52     private final StatisticsWorkMode workMode = StatisticsWorkMode.COLLECTALL;
  53     private boolean isStatisticsFullyDisabled;
  54
  55     public StatisticsManagerImpl(@NonNull final OpenflowProviderConfig config,
  56                                  @NonNull final RpcProviderService rpcProviderRegistry,
  57                                  final ConvertorExecutor convertorExecutor,
  58                                  @NonNull final Executor executor) {
  59         this.config = config;
  60         this.executor = executor;
  61         converterExecutor = convertorExecutor;
  62         controlServiceRegistration = rpcProviderRegistry.registerRpcImplementations(
  63             (GetStatisticsWorkMode) this::getStatisticsWorkMode,
  64             (ChangeStatisticsWorkMode) this::changeStatisticsWorkMode);
  65     }
  66
  67     @VisibleForTesting
  68     ListenableFuture<RpcResult<GetStatisticsWorkModeOutput>> getStatisticsWorkMode(
  69             final GetStatisticsWorkModeInput input) {
  70         return RpcResultBuilder.success(new GetStatisticsWorkModeOutputBuilder()
  71                 .setMode(workMode)
  72                 .build()).buildFuture();
  73     }
  74
  75     @VisibleForTesting
  76     ListenableFuture<RpcResult<ChangeStatisticsWorkModeOutput>> changeStatisticsWorkMode(
  77             final ChangeStatisticsWorkModeInput input) {
  78         if (workModeGuard.tryAcquire()) {
  79             final StatisticsWorkMode targetWorkMode = input.getMode();
  80             isStatisticsFullyDisabled = StatisticsWorkMode.FULLYDISABLED.equals(targetWorkMode);
  81
  82             contexts.values().forEach(context -> {
  83                 switch (targetWorkMode) {
  84                     case COLLECTALL:
  85                         context.enableGathering();
  86                         break;
  87                     case FULLYDISABLED:
  88                         context.disableGathering();
  89                         break;
  90                     default:
  91                         LOG.warn("Statistics work mode not supported: {}", targetWorkMode);
  92                 }
  93             });
  94
  95             workModeGuard.release();
  96             return RpcResultBuilder.<ChangeStatisticsWorkModeOutput>success().buildFuture();
  97         }
  98
  99         return RpcResultBuilder.<ChangeStatisticsWorkModeOutput>failed()
 100                 .withError(ErrorType.APPLICATION, "Statistics work mode change is already in progress")
 101                 .buildFuture();
 102     }
 103
 104     @Override
 105     public StatisticsContext createContext(@NonNull final DeviceContext deviceContext,
 106                                            final boolean useReconciliationFramework) {
 107         final MultipartWriterProvider statisticsWriterProvider = MultipartWriterProviderFactory
 108                 .createDefaultProvider(deviceContext);
 109
 110         final StatisticsContext statisticsContext = new StatisticsContextImpl<>(
 111                 deviceContext,
 112                 converterExecutor,
 113                 statisticsWriterProvider,
 114                 executor,
 115                 config,
 116                 !isStatisticsFullyDisabled && config.getIsStatisticsPollingOn(),
 117                 useReconciliationFramework);
 118
 119         contexts.put(deviceContext.getDeviceInfo(), statisticsContext);
 120         return statisticsContext;
 121     }
 122
 123     @Override
 124     public void onDeviceRemoved(final DeviceInfo deviceInfo) {
 125         contexts.remove(deviceInfo);
 126         LOG.debug("Statistics context removed for node {}", deviceInfo);
 127     }
 128
 129     @Override
 130     public void close() {
 131         isStatisticsFullyDisabled = true;
 132         controlServiceRegistration.close();
 133
 134         for (StatisticsContext context : contexts.values()) {
 135             context.close();
 136         }
 137
 138         contexts.clear();
 139     }
 140 }