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/*
 * 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 org.jclouds.elasticstack.domain;

import static shaded.com.google.common.base.Preconditions.checkNotNull;

import java.util.Set;

import org.jclouds.javax.annotation.Nullable;

import shaded.com.google.common.collect.ImmutableSet;

public class NIC {
   public static class Builder {
      private String dhcp;
      private Model model;
      private String vlan;
      private String mac;
      // TODO elasticstack specific
      private Set block = ImmutableSet.of();

      public Builder dhcp(String dhcp) {
         this.dhcp = dhcp;
         return this;
      }

      public Builder model(Model model) {
         this.model = model;
         return this;
      }

      public Builder vlan(String vlan) {
         this.vlan = vlan;
         return this;
      }

      public Builder mac(String mac) {
         this.mac = mac;
         return this;
      }

      public Builder block(Iterable block) {
         this.block = ImmutableSet.copyOf(checkNotNull(block, "block"));
         return this;
      }

      public NIC build() {
         return new NIC(dhcp, model, vlan, mac, block);
      }
   }

   private final String dhcp;
   private final Model model;
   private final String vlan;
   private final String mac;
   private final Set block;

   public NIC(@Nullable String dhcp, Model model, @Nullable String vlan, @Nullable String mac, Iterable block) {
      this.dhcp = dhcp;
      this.model = checkNotNull(model, "model");
      this.vlan = vlan;
      this.mac = mac;
      this.block = ImmutableSet.copyOf(checkNotNull(block, "block"));
   }

   /**
    * 
    * @return The IP address offered by DHCP to network interface 0. If unset, no address is
    *         offered. Set to 'auto' to allocate a temporary IP at boot.
    */
   public String getDhcp() {
      return dhcp;
   }

   /**
    * 
    * @return Create network interface with given type (use 'e1000' as default value; 'rtl8139' or
    *         'virtio' are also available).
    */
   public Model getModel() {
      return model;
   }

   /**
    * 
    * @return The VLAN to which the network interface is attached.
    */
   public String getVlan() {
      return vlan;
   }

   /**
    * 
    * @return The MAC address of the network interface. If unset, a randomly generated address is
    *         used. If set, should be unique on the VLAN.
    */
   public String getMac() {
      return mac;
   }

   // TODO undocumented
   public Set getBlock() {
      return block;
   }

   @Override
   public int hashCode() {
      final int prime = 31;
      int result = 1;
      result = prime * result + ((block == null) ? 0 : block.hashCode());
      result = prime * result + ((dhcp == null) ? 0 : dhcp.hashCode());
      result = prime * result + ((mac == null) ? 0 : mac.hashCode());
      result = prime * result + ((model == null) ? 0 : model.hashCode());
      result = prime * result + ((vlan == null) ? 0 : vlan.hashCode());
      return result;
   }

   @Override
   public boolean equals(Object obj) {
      if (this == obj)
         return true;
      if (obj == null)
         return false;
      if (getClass() != obj.getClass())
         return false;
      NIC other = (NIC) obj;
      if (block == null) {
         if (other.block != null)
            return false;
      } else if (!block.equals(other.block))
         return false;
      if (dhcp == null) {
         if (other.dhcp != null)
            return false;
      } else if (!dhcp.equals(other.dhcp))
         return false;
      if (mac == null) {
         if (other.mac != null)
            return false;
      } else if (!mac.equals(other.mac))
         return false;
      if (model != other.model)
         return false;
      if (vlan == null) {
         if (other.vlan != null)
            return false;
      } else if (!vlan.equals(other.vlan))
         return false;
      return true;
   }

   @Override
   public String toString() {
      return "[dhcp=" + dhcp + ", model=" + model + ", vlan=" + vlan + ", mac=" + mac + ", block=" + block + "]";
   }
}