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 java.util.ArrayList;
  11 import javax.annotation.PreDestroy;
  12 import javax.inject.Inject;
  13 import javax.inject.Singleton;
  14 import org.eclipse.jdt.annotation.Nullable;
  15 import org.opendaylight.infrautils.utils.concurrent.Executors;
  16 import org.opendaylight.mdsal.binding.api.DataBroker;
  17 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  18 import org.opendaylight.netvirt.dhcpservice.api.DhcpMConstants;
  19 import org.opendaylight.serviceutils.tools.listener.AbstractClusteredAsyncDataTreeChangeListener;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.rev150602.DhcpConfig;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.rev150602.dhcp.config.Configs;
  22 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  23 import org.slf4j.Logger;
  24 import org.slf4j.LoggerFactory;
  25
  26 @Singleton
  27 public class DhcpConfigListener extends AbstractClusteredAsyncDataTreeChangeListener<DhcpConfig> {
  28
  29     private static final Logger LOG = LoggerFactory.getLogger(DhcpConfigListener.class);
  30
  31     private final DhcpManager dhcpManager;
  32     private final DataBroker dataBroker;
  33
  34     @Inject
  35     public DhcpConfigListener(final DataBroker db, final DhcpManager dhcpMgr) {
  36         super(db, LogicalDatastoreType.CONFIGURATION, InstanceIdentifier.create(DhcpConfig.class),
  37                 Executors.newListeningSingleThreadExecutor("DhcpConfigListener", LOG));
  38         dhcpManager = dhcpMgr;
  39         this.dataBroker = db;
  40     }
  41
  42     public void init() {
  43         LOG.info("{} close", getClass().getSimpleName());
  44     }
  45
  46     @Override
  47     @PreDestroy
  48     public void close() {
  49         super.close();
  50         Executors.shutdownAndAwaitTermination(getExecutorService());
  51         LOG.debug("DhcpConfig Listener Closed");
  52     }
  53
  54     @Override
  55     public void remove(InstanceIdentifier<DhcpConfig> identifier, DhcpConfig del) {
  56         LOG.trace("DhcpConfig removed: {}", del);
  57         updateConfig(null);
  58     }
  59
  60     @Override
  61     public void update(InstanceIdentifier<DhcpConfig> identifier, DhcpConfig original, DhcpConfig update) {
  62         LOG.trace("DhcpConfig changed to {}", update);
  63         updateConfig(update);
  64     }
  65
  66     @Override
  67     public void add(InstanceIdentifier<DhcpConfig> identifier, DhcpConfig add) {
  68         LOG.trace("DhcpConfig added {}", add);
  69         updateConfig(add);
  70     }
  71
  72     private void updateConfig(@Nullable DhcpConfig update) {
  73         //TODO: Update operational with actual values
  74         if (update == null || update.getConfigs() == null || update.getConfigs().isEmpty()) {
  75             dhcpManager.setLeaseDuration(DhcpMConstants.DEFAULT_LEASE_TIME);
  76             dhcpManager.setDefaultDomain(DhcpMConstants.DEFAULT_DOMAIN_NAME);
  77             return;
  78         }
  79         Configs config = new ArrayList<Configs>(update.getConfigs().values()).get(0);
  80         if (config.getLeaseDuration() != null) {
  81             dhcpManager.setLeaseDuration(config.getLeaseDuration());
  82         }
  83         if (config.getDefaultDomain() != null) {
  84             dhcpManager.setDefaultDomain(config.getDefaultDomain());
  85             //TODO: What to do if string is ""
  86         }
  87     }
  88 }