opendaylight/netconf/mdsal-netconf-monitoring/src/main/java/org/opendaylight/controller/config/yang/netconf/mdsal/monitoring/MonitoringToMdsalWriter.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
   9 package org.opendaylight.controller.config.yang.netconf.mdsal.monitoring;
  10
  11 import com.google.common.base.Preconditions;
  12 import com.google.common.util.concurrent.CheckedFuture;
  13 import com.google.common.util.concurrent.FutureCallback;
  14 import com.google.common.util.concurrent.Futures;
  15 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  16 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  17 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  18 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
  19 import org.opendaylight.controller.netconf.api.monitoring.NetconfMonitoringService;
  20 import org.opendaylight.controller.sal.binding.api.BindingAwareBroker;
  21 import org.opendaylight.controller.sal.binding.api.BindingAwareProvider;
  22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.netconf.monitoring.rev101004.NetconfState;
  23 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  24 import org.slf4j.Logger;
  25 import org.slf4j.LoggerFactory;
  26
  27 final class MonitoringToMdsalWriter implements AutoCloseable, NetconfMonitoringService.MonitoringListener, BindingAwareProvider {
  28
  29     private static final Logger LOG = LoggerFactory.getLogger(MonitoringToMdsalWriter.class);
  30
  31     private final NetconfMonitoringService serverMonitoringDependency;
  32     private DataBroker dataBroker;
  33
  34     public MonitoringToMdsalWriter(final NetconfMonitoringService serverMonitoringDependency) {
  35         this.serverMonitoringDependency = serverMonitoringDependency;
  36     }
  37
  38     @Override
  39     public void close() {
  40         final WriteTransaction tx = dataBroker.newWriteOnlyTransaction();
  41         tx.delete(LogicalDatastoreType.OPERATIONAL, InstanceIdentifier.create(NetconfState.class));
  42         final CheckedFuture<Void, TransactionCommitFailedException> submit = tx.submit();
  43
  44         Futures.addCallback(submit, new FutureCallback<Void>() {
  45             @Override
  46             public void onSuccess(final Void aVoid) {
  47                 LOG.debug("Netconf state cleared successfully");
  48             }
  49
  50             @Override
  51             public void onFailure(final Throwable throwable) {
  52                 LOG.warn("Unable to clear netconf state", throwable);
  53             }
  54         });
  55     }
  56
  57     @Override
  58     public void onStateChanged(final NetconfState state) {
  59         Preconditions.checkState(dataBroker != null);
  60         final WriteTransaction tx = dataBroker.newWriteOnlyTransaction();
  61         tx.put(LogicalDatastoreType.OPERATIONAL, InstanceIdentifier.create(NetconfState.class), state);
  62         // FIXME first attempt (right after we register to binding broker) always fails
  63         // Is it due to the fact that we are writing from the onSessionInitiated callback ?
  64         final CheckedFuture<Void, TransactionCommitFailedException> submit = tx.submit();
  65
  66         Futures.addCallback(submit, new FutureCallback<Void>() {
  67             @Override
  68             public void onSuccess(final Void aVoid) {
  69                 LOG.debug("Netconf state updated successfully");
  70             }
  71
  72             @Override
  73             public void onFailure(final Throwable throwable) {
  74                 LOG.warn("Unable to update netconf state", throwable);
  75             }
  76         });
  77     }
  78
  79     @Override
  80     public void onSessionInitiated(final BindingAwareBroker.ProviderContext providerContext) {
  81         dataBroker = providerContext.getSALService(DataBroker.class);
  82         serverMonitoringDependency.registerListener(this);
  83     }
  84 }