vpnservice/dhcpservice/dhcpservice-impl/src/main/java/org/opendaylight/netvirt/dhcpservice/DhcpAllocationPoolListener.java

   1 /*
   2  * Copyright (c) 2017 Hewlett Packard Enterprise, Co. 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.math.BigInteger;
  11 import java.util.List;
  12 import java.util.Map;
  13 import java.util.Map.Entry;
  14 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  15 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  16 import org.opendaylight.genius.datastoreutils.AsyncDataTreeChangeListenerBase;
  17 import org.opendaylight.genius.infra.ManagedNewTransactionRunner;
  18 import org.opendaylight.genius.infra.ManagedNewTransactionRunnerImpl;
  19 import org.opendaylight.infrautils.jobcoordinator.JobCoordinator;
  20 import org.opendaylight.netvirt.dhcpservice.api.DhcpMConstants;
  21 import org.opendaylight.netvirt.dhcpservice.jobs.DhcpAllocationPoolAddJob;
  22 import org.opendaylight.netvirt.dhcpservice.jobs.DhcpAllocationPoolRemoveJob;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.dhcp_allocation_pool.rev161214.DhcpAllocationPool;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.dhcp_allocation_pool.rev161214.dhcp_allocation_pool.Network;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.dhcp_allocation_pool.rev161214.dhcp_allocation_pool.network.AllocationPool;
  26 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  27 import org.slf4j.Logger;
  28 import org.slf4j.LoggerFactory;
  29
  30 public class DhcpAllocationPoolListener
  31         extends AsyncDataTreeChangeListenerBase<AllocationPool, DhcpAllocationPoolListener> {
  32
  33     private static final Logger LOG = LoggerFactory.getLogger(DhcpAllocationPoolListener.class);
  34
  35     private final DhcpAllocationPoolManager dhcpAllocationPoolManager;
  36     private final DataBroker dataBroker;
  37     private final ManagedNewTransactionRunner txRunner;
  38     private final JobCoordinator jobCoordinator;
  39
  40     public DhcpAllocationPoolListener(final DhcpAllocationPoolManager dhcpAllocationPoolManager,
  41             final DataBroker dataBroker, final JobCoordinator jobCoordinator) {
  42         super(AllocationPool.class, DhcpAllocationPoolListener.class);
  43         this.dhcpAllocationPoolManager = dhcpAllocationPoolManager;
  44         this.dataBroker = dataBroker;
  45         this.txRunner = new ManagedNewTransactionRunnerImpl(dataBroker);
  46         this.jobCoordinator = jobCoordinator;
  47         registerListener(LogicalDatastoreType.CONFIGURATION, dataBroker);
  48         LOG.info("DhcpAllocationPoolListener initialized");
  49     }
  50
  51     @Override
  52     protected void add(InstanceIdentifier<AllocationPool> key, AllocationPool dataObjectModification) {
  53         String networkId = key.firstKeyOf(Network.class).getNetworkId();
  54         dhcpAllocationPoolManager.createIdAllocationPool(networkId, dataObjectModification);
  55         Map<BigInteger, List<String>> elanDpnInterfacesByName = getDpnInterfacesByNetwork(networkId);
  56         for (Entry<BigInteger, List<String>> entry : elanDpnInterfacesByName.entrySet()) {
  57             BigInteger dpnId = entry.getKey();
  58             for (String interfaceName : entry.getValue()) {
  59                 LOG.debug("Install Dhcp Entries for dpId: {} interface : {}", dpnId, interfaceName);
  60                 DhcpAllocationPoolAddJob job = new DhcpAllocationPoolAddJob(txRunner, interfaceName);
  61                 jobCoordinator.enqueueJob(DhcpServiceUtils.getJobKey(interfaceName), job,
  62                         DhcpMConstants.RETRY_COUNT);
  63             }
  64         }
  65     }
  66
  67     @Override
  68     protected DhcpAllocationPoolListener getDataTreeChangeListener() {
  69         return this;
  70     }
  71
  72     @Override
  73     protected InstanceIdentifier<AllocationPool> getWildCardPath() {
  74         return InstanceIdentifier.builder(DhcpAllocationPool.class)//
  75                 .child(Network.class).child(AllocationPool.class).build();
  76     }
  77
  78     @Override
  79     protected void remove(InstanceIdentifier<AllocationPool> key, AllocationPool dataObjectModification) {
  80         String networkId = key.firstKeyOf(Network.class).getNetworkId();
  81         dhcpAllocationPoolManager.releaseIdAllocationPool(networkId, dataObjectModification);
  82         Map<BigInteger, List<String>> elanDpnInterfacesByName = getDpnInterfacesByNetwork(networkId);
  83         elanDpnInterfacesByName.values().forEach(interfaceNames -> interfaceNames.forEach(interfaceName -> {
  84             DhcpAllocationPoolRemoveJob job = new DhcpAllocationPoolRemoveJob(txRunner, interfaceName);
  85             jobCoordinator.enqueueJob(DhcpServiceUtils.getJobKey(interfaceName), job,
  86                     DhcpMConstants.RETRY_COUNT);
  87         }));
  88     }
  89
  90     @Override
  91     protected void update(InstanceIdentifier<AllocationPool> key, AllocationPool dataObjectModificationBefore,
  92             AllocationPool dataObjectModificationAfter) {
  93         // TODO Auto-generated method stub
  94
  95     }
  96
  97     private Map<BigInteger, List<String>> getDpnInterfacesByNetwork(String networkId) {
  98         Map<BigInteger, List<String>> elanDpnInterfacesByName = dhcpAllocationPoolManager
  99                 .getElanDpnInterfacesByName(dataBroker, networkId);
 100         return elanDpnInterfacesByName;
 101     }
 102 }