dhcpservice/impl/src/main/java/org/opendaylight/netvirt/dhcpservice/DhcpConfigListener.java

   1 /*
   2  * Copyright (c) 2016 Ericsson India Global Services Pvt Ltd. 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.netvirt.dhcpservice;
   9
  10 import javax.annotation.PreDestroy;
  11 import javax.inject.Inject;
  12 import javax.inject.Singleton;
  13 import org.eclipse.jdt.annotation.Nullable;
  14 import org.opendaylight.infrautils.utils.concurrent.Executors;
  15 import org.opendaylight.mdsal.binding.api.DataBroker;
  16 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  17 import org.opendaylight.netvirt.dhcpservice.api.DhcpMConstants;
  18 import org.opendaylight.serviceutils.tools.listener.AbstractClusteredAsyncDataTreeChangeListener;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.rev150602.DhcpConfig;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.rev150602.dhcp.config.Configs;
  21 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  22 import org.slf4j.Logger;
  23 import org.slf4j.LoggerFactory;
  24
  25 @Singleton
  26 public class DhcpConfigListener extends AbstractClusteredAsyncDataTreeChangeListener<DhcpConfig> {
  27
  28     private static final Logger LOG = LoggerFactory.getLogger(DhcpConfigListener.class);
  29
  30     private final DhcpManager dhcpManager;
  31     private final DataBroker dataBroker;
  32
  33     @Inject
  34     public DhcpConfigListener(final DataBroker db, final DhcpManager dhcpMgr) {
  35         super(db, LogicalDatastoreType.CONFIGURATION, InstanceIdentifier.create(DhcpConfig.class),
  36                 Executors.newListeningSingleThreadExecutor("DhcpConfigListener", LOG));
  37         dhcpManager = dhcpMgr;
  38         this.dataBroker = db;
  39     }
  40
  41     public void init() {
  42         LOG.info("{} close", getClass().getSimpleName());
  43     }
  44
  45     @Override
  46     @PreDestroy
  47     public void close() {
  48         super.close();
  49         Executors.shutdownAndAwaitTermination(getExecutorService());
  50         LOG.debug("DhcpConfig Listener Closed");
  51     }
  52
  53     @Override
  54     public void remove(InstanceIdentifier<DhcpConfig> identifier, DhcpConfig del) {
  55         LOG.trace("DhcpConfig removed: {}", del);
  56         updateConfig(null);
  57     }
  58
  59     @Override
  60     public void update(InstanceIdentifier<DhcpConfig> identifier, DhcpConfig original, DhcpConfig update) {
  61         LOG.trace("DhcpConfig changed to {}", update);
  62         updateConfig(update);
  63     }
  64
  65     @Override
  66     public void add(InstanceIdentifier<DhcpConfig> identifier, DhcpConfig add) {
  67         LOG.trace("DhcpConfig added {}", add);
  68         updateConfig(add);
  69     }
  70
  71     private void updateConfig(@Nullable DhcpConfig update) {
  72         //TODO: Update operational with actual values
  73         if (update == null || update.getConfigs() == null || update.getConfigs().isEmpty()) {
  74             dhcpManager.setLeaseDuration(DhcpMConstants.DEFAULT_LEASE_TIME);
  75             dhcpManager.setDefaultDomain(DhcpMConstants.DEFAULT_DOMAIN_NAME);
  76             return;
  77         }
  78         Configs config = update.getConfigs().get(0);
  79         if (config.getLeaseDuration() != null) {
  80             dhcpManager.setLeaseDuration(config.getLeaseDuration());
  81         }
  82         if (config.getDefaultDomain() != null) {
  83             dhcpManager.setDefaultDomain(config.getDefaultDomain());
  84             //TODO: What to do if string is ""
  85         }
  86     }
  87 }