applications/of-switch-config-pusher/src/main/java/org/opendaylight/openflowplugin/openflow/ofswitch/config/DefaultConfigPusher.java

   1 /**
   2  * Copyright (c) 2014, 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.openflow.ofswitch.config;
  10
  11 import com.google.common.base.Preconditions;
  12 import java.util.Collection;
  13 import java.util.concurrent.Future;
  14 import javax.annotation.PostConstruct;
  15 import javax.annotation.PreDestroy;
  16 import javax.inject.Inject;
  17 import javax.inject.Singleton;
  18 import org.apache.aries.blueprint.annotation.service.Reference;
  19 import org.opendaylight.infrautils.utils.concurrent.JdkFutures;
  20 import org.opendaylight.mdsal.binding.api.ClusteredDataTreeChangeListener;
  21 import org.opendaylight.mdsal.binding.api.DataBroker;
  22 import org.opendaylight.mdsal.binding.api.DataObjectModification.ModificationType;
  23 import org.opendaylight.mdsal.binding.api.DataTreeIdentifier;
  24 import org.opendaylight.mdsal.binding.api.DataTreeModification;
  25 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  26 import org.opendaylight.openflowplugin.api.OFConstants;
  27 import org.opendaylight.openflowplugin.applications.deviceownershipservice.DeviceOwnershipService;
  28 import org.opendaylight.openflowplugin.common.wait.SimpleTaskRetryLooper;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeRef;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.module.config.rev141015.NodeConfigService;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.module.config.rev141015.SetConfigInputBuilder;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.module.config.rev141015.SetConfigOutput;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.SwitchConfigFlag;
  37 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  38 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  39 import org.opendaylight.yangtools.yang.common.RpcResult;
  40 import org.slf4j.Logger;
  41 import org.slf4j.LoggerFactory;
  42
  43 @Singleton
  44 public class DefaultConfigPusher implements AutoCloseable, ClusteredDataTreeChangeListener<FlowCapableNode> {
  45     private static final Logger LOG = LoggerFactory.getLogger(DefaultConfigPusher.class);
  46     private static final long STARTUP_LOOP_TICK = 500L;
  47     private static final int STARTUP_LOOP_MAX_RETRIES = 8;
  48     private final NodeConfigService nodeConfigService;
  49     private final DataBroker dataBroker;
  50     private final DeviceOwnershipService deviceOwnershipService;
  51     private ListenerRegistration<?> listenerRegistration;
  52
  53     @Inject
  54     public DefaultConfigPusher(NodeConfigService nodeConfigService, @Reference DataBroker dataBroker,
  55             @Reference DeviceOwnershipService deviceOwnershipService) {
  56         this.nodeConfigService = nodeConfigService;
  57         this.dataBroker = dataBroker;
  58         this.deviceOwnershipService = Preconditions.checkNotNull(deviceOwnershipService,
  59                 "DeviceOwnershipService can not be null");
  60     }
  61
  62     @SuppressWarnings("checkstyle:IllegalCatch")
  63     @PostConstruct
  64     public void start() {
  65         try {
  66             final InstanceIdentifier<FlowCapableNode> path = InstanceIdentifier.create(Nodes.class).child(Node.class)
  67                     .augmentation(FlowCapableNode.class);
  68             final DataTreeIdentifier<FlowCapableNode> identifier = DataTreeIdentifier.create(
  69                     LogicalDatastoreType.OPERATIONAL, path);
  70             final SimpleTaskRetryLooper looper = new SimpleTaskRetryLooper(STARTUP_LOOP_TICK, STARTUP_LOOP_MAX_RETRIES);
  71             listenerRegistration = looper.loopUntilNoException(
  72                 () -> dataBroker.registerDataTreeChangeListener(identifier, DefaultConfigPusher.this));
  73         } catch (Exception e) {
  74             LOG.error("DataTreeChangeListener registration failed", e);
  75             throw new IllegalStateException("DefaultConfigPusher startup failed!", e);
  76         }
  77         LOG.info("DefaultConfigPusher has started.");
  78     }
  79
  80     @Override
  81     @PreDestroy
  82     public void close() {
  83         if (listenerRegistration != null) {
  84             listenerRegistration.close();
  85         }
  86     }
  87
  88     @Override
  89     public void onDataTreeChanged(final Collection<DataTreeModification<FlowCapableNode>> modifications) {
  90         for (DataTreeModification<FlowCapableNode> modification : modifications) {
  91             if (modification.getRootNode().getModificationType() == ModificationType.WRITE) {
  92                 String nodeId = modification.getRootPath().getRootIdentifier()
  93                         .firstKeyOf(Node.class).getId().getValue();
  94                 if (deviceOwnershipService.isEntityOwned(nodeId)) {
  95                     SetConfigInputBuilder setConfigInputBuilder = new SetConfigInputBuilder();
  96                     setConfigInputBuilder.setFlag(SwitchConfigFlag.FRAGNORMAL.toString());
  97                     setConfigInputBuilder.setMissSearchLength(OFConstants.OFPCML_NO_BUFFER);
  98                     setConfigInputBuilder.setNode(new NodeRef(modification.getRootPath()
  99                             .getRootIdentifier().firstIdentifierOf(Node.class)));
 100                     final Future<RpcResult<SetConfigOutput>> resultFuture =
 101                             nodeConfigService.setConfig(setConfigInputBuilder.build());
 102                     JdkFutures.addErrorLogging(resultFuture, LOG, "addFlow");
 103                 } else {
 104                     LOG.debug("Node {} is not owned by this controller, so skip setting config", nodeId);
 105                 }
 106             }
 107         }
 108     }
 109
 110 }