elanmanager/api/src/main/java/org/opendaylight/netvirt/elanmanager/api/ElanHelper.java

   1 /*
   2  * Copyright © 2017 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.elanmanager.api;
   9
  10 import java.math.BigInteger;
  11 import java.util.Collections;
  12 import java.util.List;
  13 import java.util.stream.Collectors;
  14
  15 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  16 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  17 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  18 import org.opendaylight.genius.datastoreutils.SingleTransactionDataBroker;
  19 import org.opendaylight.genius.mdsalutil.MetaDataUtil;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.ElanDpnInterfaces;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.ElanInstances;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.dpn.interfaces.ElanDpnInterfacesList;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.dpn.interfaces.ElanDpnInterfacesListKey;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.instances.ElanInstance;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.instances.ElanInstanceKey;
  26 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  27 import org.slf4j.Logger;
  28 import org.slf4j.LoggerFactory;
  29
  30 public final class ElanHelper {
  31
  32     private static final Logger LOG = LoggerFactory.getLogger(ElanHelper.class);
  33
  34     private ElanHelper() {
  35         throw new AssertionError(ElanHelper.class.getName() + " cannot be initialized.");
  36     }
  37
  38     public static InstanceIdentifier<ElanInstance> getElanInstanceConfigurationDataPath(String elanInstanceName) {
  39         return InstanceIdentifier.builder(ElanInstances.class)
  40                 .child(ElanInstance.class, new ElanInstanceKey(elanInstanceName)).build();
  41     }
  42
  43     public static BigInteger getElanMetadataLabel(long elanTag) {
  44         return MetaDataUtil.getElanTagMetadata(elanTag);
  45     }
  46
  47     public static BigInteger getElanMetadataLabel(long elanTag, int lportTag) {
  48         return getElanMetadataLabel(elanTag).or(MetaDataUtil.getLportTagMetaData(lportTag));
  49     }
  50
  51     public static BigInteger getElanMetadataMask() {
  52         return MetaDataUtil.METADATA_MASK_SERVICE.or(MetaDataUtil.METADATA_MASK_LPORT_TAG);
  53     }
  54
  55     public static List<String> getDpnInterfacesInElanInstance(DataBroker broker, String elanInstanceName) {
  56
  57         InstanceIdentifier<ElanDpnInterfacesList> elanDpnInterfaceId = getElanDpnOperationDataPath(elanInstanceName);
  58         try {
  59             ElanDpnInterfacesList existingElanDpnInterfaces = SingleTransactionDataBroker.syncRead(broker,
  60                     LogicalDatastoreType.OPERATIONAL, elanDpnInterfaceId);
  61             if (existingElanDpnInterfaces != null) {
  62                 return existingElanDpnInterfaces.getDpnInterfaces().stream().flatMap(v -> v.getInterfaces().stream())
  63                         .collect(Collectors.toList());
  64             }
  65         } catch (ReadFailedException e) {
  66             LOG.warn("Failed to read ElanDpnInterfacesList with error {}", e.getMessage());
  67         }
  68         return Collections.emptyList();
  69     }
  70
  71     public static InstanceIdentifier<ElanDpnInterfacesList> getElanDpnOperationDataPath(String elanInstanceName) {
  72         return InstanceIdentifier.builder(ElanDpnInterfaces.class)
  73                 .child(ElanDpnInterfacesList.class, new ElanDpnInterfacesListKey(elanInstanceName)).build();
  74
  75     }
  76 }