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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.virtualbox.domain;

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

import java.util.List;

import com.google.common.base.Objects;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Lists;

/**
 * Describes the network configuration for a VirtualBox machine.
 */
public class NetworkSpec {

   private final List networkInterfaceCards;

   public NetworkSpec(final List networkInterfaceCards) {
      this.networkInterfaceCards = ImmutableList.copyOf(checkNotNull(networkInterfaceCards, "networkInterfaceCards can't be null"));
   }

   public static Builder builder() {
      return new Builder();
   }

   public static class Builder {

      private List networkInterfaceCards = Lists.newArrayList();

      public Builder addNIC(NetworkInterfaceCard networkInterfaceCard) {
         this.networkInterfaceCards.add(networkInterfaceCard);
         return this;
      }

      public NetworkSpec build() {
         return new NetworkSpec(networkInterfaceCards);
      }
   }

   public List getNetworkInterfaceCards() {
      return networkInterfaceCards;
   }

   @Override
   public boolean equals(Object o) {
      if (this == o)
         return true;
      if (o instanceof NetworkSpec) {
         NetworkSpec other = (NetworkSpec) o;
         return Objects.equal(networkInterfaceCards, other.networkInterfaceCards);
      }
      return false;
   }

   @Override
   public int hashCode() {
      return Objects.hashCode(networkInterfaceCards);
   }

   @Override
   public String toString() {
      return "NetworkSpec{" + "networkInterfaceCards= " + networkInterfaceCards + '}';
   }
}