applications/forwardingrules-sync/src/main/java/org/opendaylight/openflowplugin/applications/frsync/impl/AbstractFrmSyncListener.java

   1 /**
   2  * Copyright (c) 2016 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.applications.frsync.impl;
  10
  11 import com.google.common.base.Optional;
  12 import com.google.common.util.concurrent.ListenableFuture;
  13 import java.util.Collection;
  14 import java.util.concurrent.TimeUnit;
  15 import javax.annotation.Nonnull;
  16 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
  17 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  18 import org.opendaylight.openflowplugin.applications.frsync.NodeListener;
  19 import org.opendaylight.openflowplugin.applications.frsync.util.PathUtil;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeId;
  21 import org.opendaylight.yangtools.yang.binding.DataObject;
  22 import org.slf4j.Logger;
  23 import org.slf4j.LoggerFactory;
  24
  25 /**
  26  * Abstract Listener for node changes.
  27  */
  28 public abstract class AbstractFrmSyncListener<T extends DataObject> implements NodeListener<T> {
  29
  30     private static final Logger LOG = LoggerFactory.getLogger(AbstractFrmSyncListener.class);
  31
  32     @Override
  33     public void onDataTreeChanged(@Nonnull final Collection<DataTreeModification<T>> modifications) {
  34         for (DataTreeModification<T> modification : modifications) {
  35             final NodeId nodeId = PathUtil.digNodeId(modification.getRootPath().getRootIdentifier());
  36             if (LOG.isTraceEnabled()) {
  37                 LOG.trace("DataTreeModification of {} in {} datastore", nodeId.getValue(), dsType());
  38             }
  39             try {
  40                 final Optional<ListenableFuture<Boolean>> optFuture = processNodeModification(modification);
  41                 if (optFuture.isPresent()) {
  42                     final ListenableFuture<Boolean> future = optFuture.get();
  43                     future.get(15000, TimeUnit.MILLISECONDS);
  44                     if (LOG.isTraceEnabled()) {
  45                         LOG.trace("Syncup for {} return from {} listener", nodeId.getValue(), dsType());
  46                     }
  47                 }
  48             } catch (InterruptedException e) {
  49                 LOG.warn("Permit for forwarding rules sync not acquired: {}", nodeId.getValue());
  50             } catch (Exception e) {
  51                 LOG.error("Error processing inventory node modification: {}, {}", nodeId.getValue(), e);
  52             }
  53         }
  54     }
  55
  56     protected abstract Optional<ListenableFuture<Boolean>> processNodeModification(
  57             final DataTreeModification<T> modification) throws InterruptedException;
  58
  59     protected abstract LogicalDatastoreType dsType();
  60
  61 }