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 package org.opendaylight.openflowplugin.openflow.ofswitch.config;
   9
  10 import static java.util.Objects.requireNonNull;
  11
  12 import java.util.Collection;
  13 import javax.annotation.PostConstruct;
  14 import javax.annotation.PreDestroy;
  15 import javax.inject.Inject;
  16 import javax.inject.Singleton;
  17 import org.opendaylight.infrautils.utils.concurrent.LoggingFutures;
  18 import org.opendaylight.mdsal.binding.api.ClusteredDataTreeChangeListener;
  19 import org.opendaylight.mdsal.binding.api.DataBroker;
  20 import org.opendaylight.mdsal.binding.api.DataObjectModification.ModificationType;
  21 import org.opendaylight.mdsal.binding.api.DataTreeIdentifier;
  22 import org.opendaylight.mdsal.binding.api.DataTreeModification;
  23 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  24 import org.opendaylight.openflowplugin.api.OFConstants;
  25 import org.opendaylight.openflowplugin.applications.deviceownershipservice.DeviceOwnershipService;
  26 import org.opendaylight.openflowplugin.common.wait.SimpleTaskRetryLooper;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeRef;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.module.config.rev141015.NodeConfigService;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.module.config.rev141015.SetConfigInputBuilder;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.SwitchConfigFlag;
  34 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  35 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  36 import org.slf4j.Logger;
  37 import org.slf4j.LoggerFactory;
  38
  39 @Singleton
  40 public class DefaultConfigPusher implements AutoCloseable, ClusteredDataTreeChangeListener<FlowCapableNode> {
  41     private static final Logger LOG = LoggerFactory.getLogger(DefaultConfigPusher.class);
  42     private static final long STARTUP_LOOP_TICK = 500L;
  43     private static final int STARTUP_LOOP_MAX_RETRIES = 8;
  44     private final NodeConfigService nodeConfigService;
  45     private final DataBroker dataBroker;
  46     private final DeviceOwnershipService deviceOwnershipService;
  47     private ListenerRegistration<?> listenerRegistration;
  48
  49     @Inject
  50     public DefaultConfigPusher(final NodeConfigService nodeConfigService, final DataBroker dataBroker,
  51             final DeviceOwnershipService deviceOwnershipService) {
  52         this.nodeConfigService = nodeConfigService;
  53         this.dataBroker = dataBroker;
  54         this.deviceOwnershipService = requireNonNull(deviceOwnershipService, "DeviceOwnershipService can not be null");
  55     }
  56
  57     @SuppressWarnings("checkstyle:IllegalCatch")
  58     @PostConstruct
  59     public void start() {
  60         try {
  61             final InstanceIdentifier<FlowCapableNode> path = InstanceIdentifier.create(Nodes.class).child(Node.class)
  62                     .augmentation(FlowCapableNode.class);
  63             final DataTreeIdentifier<FlowCapableNode> identifier = DataTreeIdentifier.create(
  64                     LogicalDatastoreType.OPERATIONAL, path);
  65             final SimpleTaskRetryLooper looper = new SimpleTaskRetryLooper(STARTUP_LOOP_TICK, STARTUP_LOOP_MAX_RETRIES);
  66             listenerRegistration = looper.loopUntilNoException(
  67                 () -> dataBroker.registerDataTreeChangeListener(identifier, DefaultConfigPusher.this));
  68         } catch (Exception e) {
  69             LOG.error("DataTreeChangeListener registration failed", e);
  70             throw new IllegalStateException("DefaultConfigPusher startup failed!", e);
  71         }
  72         LOG.info("DefaultConfigPusher has started.");
  73     }
  74
  75     @Override
  76     @PreDestroy
  77     public void close() {
  78         if (listenerRegistration != null) {
  79             listenerRegistration.close();
  80         }
  81     }
  82
  83     @Override
  84     public void onDataTreeChanged(final Collection<DataTreeModification<FlowCapableNode>> modifications) {
  85         for (DataTreeModification<FlowCapableNode> modification : modifications) {
  86             if (modification.getRootNode().getModificationType() == ModificationType.WRITE) {
  87                 String nodeId = modification.getRootPath().getRootIdentifier()
  88                         .firstKeyOf(Node.class).getId().getValue();
  89                 if (deviceOwnershipService.isEntityOwned(nodeId)) {
  90                     SetConfigInputBuilder setConfigInputBuilder = new SetConfigInputBuilder();
  91                     setConfigInputBuilder.setFlag(SwitchConfigFlag.FRAGNORMAL.toString());
  92                     setConfigInputBuilder.setMissSearchLength(OFConstants.OFPCML_NO_BUFFER);
  93                     setConfigInputBuilder.setNode(new NodeRef(modification.getRootPath()
  94                             .getRootIdentifier().firstIdentifierOf(Node.class)));
  95                     LoggingFutures.addErrorLogging(nodeConfigService.setConfig(setConfigInputBuilder.build()),
  96                             LOG, "addFlow");
  97                 } else {
  98                     LOG.debug("Node {} is not owned by this controller, so skip setting config", nodeId);
  99                 }
 100             }
 101         }
 102     }
 103
 104 }