adapters/mso-openstack-adapters/src/main/java/org/onap/so/heatbridge/utils/HeatBridgeUtils.java

   1 /*
   2  * Copyright (C) 2018 Bell Canada. All rights reserved.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
   5  * the License. You may obtain a copy of the License at
   6  *
   7  * http://www.apache.org/licenses/LICENSE-2.0
   8  *
   9  * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
  10  * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
  11  * specific language governing permissions and limitations under the License.
  12  */
  13
  14 package org.onap.so.heatbridge.utils;
  15
  16 import com.google.common.base.Preconditions;
  17 import com.google.common.base.Strings;
  18 import java.util.Optional;
  19 import javax.annotation.Nonnull;
  20
  21 public class HeatBridgeUtils {
  22
  23     private HeatBridgeUtils() {
  24         throw new IllegalStateException("Trying to instantiate a utility class.");
  25     }
  26
  27     /**
  28      * IaaS naming convention for compute/p-interface to openstack/physical-network name mapping
  29      */
  30     private static final String OS_SIDE_SHARED_SRIOV_PREFIX = "shared-";
  31     private static final String OS_SIDE_DEDICATED_SRIOV_PREFIX = "dedicated-";
  32     private static final String COMPUTE_SIDE_SHARED_SRIOV_PREFIX = "sriov-s-";
  33     private static final String COMPUTE_SIDE_DEDICATED_SRIOV_PREFIX = "sriov-d-";
  34
  35     public static Optional<String> getMatchingPserverPifName(@Nonnull final String physicalNetworkName) {
  36         Preconditions.checkState(!Strings.isNullOrEmpty(physicalNetworkName),
  37                 "Physical network name is null or " + "empty!");
  38         if (physicalNetworkName.contains(OS_SIDE_DEDICATED_SRIOV_PREFIX)) {
  39             return Optional.of(
  40                     physicalNetworkName.replace(OS_SIDE_DEDICATED_SRIOV_PREFIX, COMPUTE_SIDE_DEDICATED_SRIOV_PREFIX));
  41         } else if (physicalNetworkName.contains(OS_SIDE_SHARED_SRIOV_PREFIX)) {
  42             return Optional
  43                     .of(physicalNetworkName.replace(OS_SIDE_SHARED_SRIOV_PREFIX, COMPUTE_SIDE_SHARED_SRIOV_PREFIX));
  44         }
  45         return Optional.empty();
  46     }
  47 }