/**
    *
    * Copyright (C) 2011 Cloud Conscious, LLC. <info@cloudconscious.com>
    *
    * ====================================================================
    * 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.savvis.vpdc.domain;
  
  import static com.google.common.base.Preconditions.checkNotNull;
  
  import java.net.URI;
  import java.util.Map;
  
  import javax.annotation.Nullable;
  
  import com.google.common.collect.ImmutableMap;
  import com.google.common.collect.Maps;
  
  /**
   * Various network features such NAT Public IP, Gateway and Netmask.
   * 
   * @author Adrian Cole
   */
  public class Network extends ResourceImpl {
     public static Builder builder() {
        return new Builder();
     }
  
     public static class Builder extends ResourceImpl.Builder {
        private String gateway;
        private String netmask;
        private Map<String, String> internalToExternalNATRules = Maps.newLinkedHashMap();
  
        public Builder gateway(String gateway) {
           this.gateway = gateway;
           return this;
        }
  
        public Builder netmask(String netmask) {
           this.netmask = netmask;
           return this;
        }
  
        public Builder internalToExternalNATRule(String internalIP, String externalIP) {
           this.internalToExternalNATRules.put(checkNotNull(internalIP, "internalIP"),
                 checkNotNull(externalIP, "externalIP"));
           return this;
        }
  
        public Builder internalToExternalNATRules(Map<String, String> internalToExternalNATRules) {
           this.internalToExternalNATRules.putAll(checkNotNull(internalToExternalNATRules, "internalToExternalNATRules"));
           return this;
        }
  
        @Override
        public Network build() {
           return new Network(id, name, type, href, gateway, netmask, internalToExternalNATRules);
        }
  
        public static Builder fromNetwork(Network in) {
           return new Builder().id(in.getId()).name(in.getName()).type(in.getType()).href(in.getHref())
                 .gateway(in.getGateway()).internalToExternalNATRules(in.getInternalToExternalNATRules())
                 .netmask(in.getNetmask());
        }
  
        @Override
        public Builder id(String id) {
           return Builder.class.cast(super.id(id));
        }
  
        @Override
        public Builder name(String name) {
           return Builder.class.cast(super.name(name));
        }
  
        @Override
        public Builder type(String type) {
           return Builder.class.cast(super.type(type));
        }
  
        @Override
        public Builder href(URI href) {
           return Builder.class.cast(super.href(href));
        }
  
     }
  
    @Nullable
    private final String gateway;
    private final String netmask;
    private final Map<String, String> internalToExternalNATRules;
 
    public Network(String id, String name, String type, URI href, @Nullable String gateway, String netmask,
          Map<String, String> internalToExternalNATRules) {
       super(id, name, type, href);
       this.gateway = gateway;
       this.netmask = netmask;
       this.internalToExternalNATRules = ImmutableMap.copyOf(checkNotNull(internalToExternalNATRules,
             "internalToExternalNATRules"));
    }
 
    /**
     * @return IP of the network's gateway
     */
    public String getGateway() {
       return gateway;
    }
 
    /**
     * @return IP of the network's netmask
     */
    public String getNetmask() {
       return netmask;
    }
 
    /**
     * @return map of internal to external ip when it has any nat1to1 enabled deployed VApp
     */
    public Map<String, String> getInternalToExternalNATRules() {
       return internalToExternalNATRules;
    }
 
    @Override
    public Builder toBuilder() {
       return Builder.fromNetwork(this);
    }
 
    @Override
    public String toString() {
       return "[id=" + id + ", href=" + href + ", name=" + name + ", type=" + type + ", gateway=" + gateway
             + ", netmask=" + netmask + ", internalToExternalNATRules=" + internalToExternalNATRules + "]";
    }
 
 }