neutronvpn/shell/src/main/java/org/opendaylight/netvirt/neutronvpn/shell/DhcpShowCommand.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
   9 package org.opendaylight.netvirt.neutronvpn.shell;
  10
  11 import static org.opendaylight.mdsal.common.api.LogicalDatastoreType.CONFIGURATION;
  12
  13 import org.apache.karaf.shell.commands.Command;
  14 import org.apache.karaf.shell.console.OsgiCommandSupport;
  15 import org.opendaylight.genius.datastoreutils.SingleTransactionDataBroker;
  16 import org.opendaylight.mdsal.binding.api.DataBroker;
  17 import org.opendaylight.netvirt.dhcpservice.api.DhcpMConstants;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.rev150602.DhcpConfig;
  19 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  20 import org.slf4j.Logger;
  21 import org.slf4j.LoggerFactory;
  22
  23 @Command(scope = "vpnservice", name = "dhcp-show", description = "showing parameters for DHCP Service")
  24 public class DhcpShowCommand extends OsgiCommandSupport {
  25
  26     private static final Logger LOG = LoggerFactory.getLogger(DhcpShowCommand.class);
  27
  28     private DataBroker dataBroker;
  29     private Integer leaseDuration = null;
  30     private String defDomain = null;
  31
  32     public void setDataBroker(DataBroker broker) {
  33         this.dataBroker = broker;
  34     }
  35
  36     @Override
  37     protected Object doExecute() throws Exception {
  38         InstanceIdentifier<DhcpConfig> iid = InstanceIdentifier.create(DhcpConfig.class);
  39         DhcpConfig dhcpConfig = SingleTransactionDataBroker.syncRead(dataBroker, CONFIGURATION, iid);
  40         if (isDhcpConfigAvailable(dhcpConfig)) {
  41             leaseDuration = dhcpConfig.getConfigs().get(0).getLeaseDuration();
  42             defDomain = dhcpConfig.getConfigs().get(0).getDefaultDomain();
  43         } else {
  44             session.getConsole().println("DHCP Config not present");
  45             LOG.error("doExecute: DHCP Config not present");
  46         }
  47         session.getConsole().println(
  48                 "Lease Duration: " + (leaseDuration != null ? leaseDuration : DhcpMConstants.DEFAULT_LEASE_TIME));
  49         session.getConsole().println(
  50                 "Default Domain: " + (defDomain != null ? defDomain : DhcpMConstants.DEFAULT_DOMAIN_NAME));
  51         return null;
  52     }
  53
  54     private boolean isDhcpConfigAvailable(DhcpConfig dhcpConfig) {
  55         return dhcpConfig != null && dhcpConfig.getConfigs() != null
  56                 && !dhcpConfig.getConfigs().isEmpty();
  57     }
  58
  59 }