content: // Licensed to the Apache Software Foundation (ASF) under one
  // or more contributor license agreements.  See the NOTICE file
  // distributed with this work for additional information
  // regarding copyright ownership.  The ASF licenses this file
  // to you under the Apache License, Version 2.0 (the
  // "License"); you may not use this file except in compliance
  // with the License.  You may obtain a copy of the License at
  //
  //   http://www.apache.org/licenses/LICENSE-2.0
  //
  // Unless required by applicable law or agreed to in writing,
  // software distributed under the License is distributed on an
  // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  // KIND, either express or implied.  See the License for the
  // specific language governing permissions and limitations
  // under the License.
  package com.cloud.network.element;
  
  import java.util.List;
  import java.util.Objects;
  
  import com.cloud.exception.ResourceUnavailableException;
  import com.cloud.network.Network;
  import com.cloud.network.rules.FirewallRule;
  import com.cloud.network.rules.PortForwardingRule;
  import com.cloud.network.vpc.NetworkACLItem;
  
  public interface PortForwardingServiceProvider extends NetworkElement, IpDeployingRequester {
  
      static String getPublicPortRange(PortForwardingRule rule) {
          return Objects.equals(rule.getSourcePortStart(), rule.getSourcePortEnd()) ?
                  String.valueOf(rule.getSourcePortStart()) :
                  String.valueOf(rule.getSourcePortStart()).concat("-").concat(String.valueOf(rule.getSourcePortEnd()));
      }
  
      static String getPrivatePFPortRange(PortForwardingRule rule) {
          return rule.getDestinationPortStart() == rule.getDestinationPortEnd() ?
                  String.valueOf(rule.getDestinationPortStart()) :
                  String.valueOf(rule.getDestinationPortStart()).concat("-").concat(String.valueOf(rule.getDestinationPortEnd()));
      }
  
      static String getPrivatePortRange(FirewallRule rule) {
          return Objects.equals(rule.getSourcePortStart(), rule.getSourcePortEnd()) ?
                  String.valueOf(rule.getSourcePortStart()) :
                  String.valueOf(rule.getSourcePortStart()).concat("-").concat(String.valueOf(rule.getSourcePortEnd()));
      }
  
      static String getPrivatePortRangeForACLRule(NetworkACLItem rule) {
          return Objects.equals(rule.getSourcePortStart(), rule.getSourcePortEnd()) ?
                  String.valueOf(rule.getSourcePortStart()) :
                  String.valueOf(rule.getSourcePortStart()).concat("-").concat(String.valueOf(rule.getSourcePortEnd()));
      }
  
      /**
       * Apply rules
       * @param network
       * @param rules
       * @return
       * @throws ResourceUnavailableException
       */
      boolean applyPFRules(Network network, List<PortForwardingRule> rules) throws ResourceUnavailableException;
  }
  