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/**
 *
 * Copyright (C) 2010 Cloud Conscious, LLC. 
 *
 * ====================================================================
 * Licensed 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 org.jclouds.vcloud.domain;

import javax.annotation.Nullable;

import org.jclouds.vcloud.domain.network.IpAddressAllocationMode;

/**
 * describes a single network connection.
 * 
 * @author Adrian Cole
 */
public class NetworkConnection {
   private final String network;
   private final int networkConnectionIndex;
   @Nullable
   private final String ipAddress;
   @Nullable
   private final String externalIpAddress;
   private final boolean connected;
   @Nullable
   private final String MACAddress;
   private final IpAddressAllocationMode ipAddressAllocationMode;

   public NetworkConnection(String network, int networkConnectionIndex, @Nullable String ipAddress,
            @Nullable String externalIpAddress, boolean connected, @Nullable String MACAddress,
            IpAddressAllocationMode ipAddressAllocationMode) {
      this.network = network;
      this.networkConnectionIndex = networkConnectionIndex;
      this.ipAddress = ipAddress;
      this.externalIpAddress = externalIpAddress;
      this.connected = connected;
      this.MACAddress = MACAddress;
      this.ipAddressAllocationMode = ipAddressAllocationMode;
   }

   /**
    * @return The name of the network to which this connection connects.
    */
   public String getNetwork() {
      return network;
   }

   /**
    * @return The value in the rasd:AddressOnParent element of the device supporting this
    *         connection.
    */
   public int getNetworkConnectionIndex() {
      return networkConnectionIndex;
   }

   /**
    * @return IP address of this connection
    */
   @Nullable
   public String getIpAddress() {
      return ipAddress;
   }

   /**
    * @return If the network that the NIC is connected to has NAT or port mapping, the external
    *         address is populated in this element.
    */
   @Nullable
   public String getExternalIpAddress() {
      return externalIpAddress;
   }

   /**
    * @return If the vApp is deployed, specifies the current state of its connection. If the vApp is
    *         undeployed, specifies whether this connection should be connected at deployment time.
    */
   public boolean isConnected() {
      return connected;
   }

   /**
    * @return MAC address of this connection
    */
   @Nullable
   public String getMACAddress() {
      return MACAddress;
   }

   /**
    * @return specifies how an IP address is allocated to this connection
    */
   public IpAddressAllocationMode getIpAddressAllocationMode() {
      return ipAddressAllocationMode;
   }

   @Override
   public int hashCode() {
      final int prime = 31;
      int result = 1;
      result = prime * result + ((MACAddress == null) ? 0 : MACAddress.hashCode());
      result = prime * result + (connected ? 1231 : 1237);
      result = prime * result + ((externalIpAddress == null) ? 0 : externalIpAddress.hashCode());
      result = prime * result + ((ipAddress == null) ? 0 : ipAddress.hashCode());
      result = prime * result + ((ipAddressAllocationMode == null) ? 0 : ipAddressAllocationMode.hashCode());
      result = prime * result + ((network == null) ? 0 : network.hashCode());
      result = prime * result + networkConnectionIndex;
      return result;
   }

   @Override
   public boolean equals(Object obj) {
      if (this == obj)
         return true;
      if (obj == null)
         return false;
      if (getClass() != obj.getClass())
         return false;
      NetworkConnection other = (NetworkConnection) obj;
      if (MACAddress == null) {
         if (other.MACAddress != null)
            return false;
      } else if (!MACAddress.equals(other.MACAddress))
         return false;
      if (connected != other.connected)
         return false;
      if (externalIpAddress == null) {
         if (other.externalIpAddress != null)
            return false;
      } else if (!externalIpAddress.equals(other.externalIpAddress))
         return false;
      if (ipAddress == null) {
         if (other.ipAddress != null)
            return false;
      } else if (!ipAddress.equals(other.ipAddress))
         return false;
      if (ipAddressAllocationMode == null) {
         if (other.ipAddressAllocationMode != null)
            return false;
      } else if (!ipAddressAllocationMode.equals(other.ipAddressAllocationMode))
         return false;
      if (network == null) {
         if (other.network != null)
            return false;
      } else if (!network.equals(other.network))
         return false;
      if (networkConnectionIndex != other.networkConnectionIndex)
         return false;
      return true;
   }

   @Override
   public String toString() {
      return "[network=" + network + ", connected=" + connected + ", ipAddress=" + ipAddress + ", externalIpAddress="
               + externalIpAddress + ", networkConnectionIndex=" + networkConnectionIndex
               + ", ipAddressAllocationMode=" + ipAddressAllocationMode + ", MACAddress=" + MACAddress + "]";
   }

}