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