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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.openstack.keystone.v2_0.domain;

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

import java.beans.ConstructorProperties;

import org.jclouds.javax.annotation.Nullable;

import shaded.com.google.common.base.MoreObjects;
import shaded.com.google.common.base.Objects;
import shaded.com.google.common.base.MoreObjects.ToStringHelper;

/**
 * A container used to group or isolate resources and/or identity objects.
 * Depending on the service operator, a tenant may map to a customer, account,
 * organization, or project.
 * 
 * @see 
 */
public class Tenant {

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

   public Builder toBuilder() {
      return new ConcreteBuilder().fromTenant(this);
   }

   public abstract static class Builder> {
      protected abstract T self();

      protected String id;
      protected String name;
      protected String description;
      protected Boolean enabled;

      /**
       * @see Tenant#getId()
       */
      public T id(String id) {
         this.id = id;
         return self();
      }

      /**
       * @see Tenant#isEnabled()
       */
      public T enabled(Boolean enabled) {
         this.enabled = enabled;
         return self();
      }

      /**
       * @see Tenant#getName()
       */
      public T name(String name) {
         this.name = name;
         return self();
      }

      /**
       * @see Tenant#getDescription()
       */
      public T description(String description) {
         this.description = description;
         return self();
      }

      public Tenant build() {
         return new Tenant(id, name, description, enabled);
      }

      public T fromTenant(Tenant in) {
         return this.id(in.getId()).name(in.getName()).description(in.getDescription());
      }
   }

   private static class ConcreteBuilder extends Builder {
      @Override
      protected ConcreteBuilder self() {
         return this;
      }
   }

   private final String id;
   private final String name;
   private final String description;
   private final Boolean enabled;

   @ConstructorProperties({ "id", "name", "description", "enabled" })
   protected Tenant(String id, String name, @Nullable String description, @Nullable Boolean enabled) {
      this.id = checkNotNull(id, "id");
      this.name = checkNotNull(name, "name");
      this.description = description;
      this.enabled = enabled;
   }

   /**
    * When providing an ID, it is assumed that the tenant exists in the current
    * OpenStack deployment
    * 
    * @return the id of the tenant in the current OpenStack deployment
    */
   public String getId() {
      return this.id;
   }

   /**
    * @return the name of the tenant
    */
   public String getName() {
      return this.name;
   }

   /**
    * @return the description of the tenant
    */
   @Nullable
   public String getDescription() {
      return this.description;
   }

   /**
    * @return if the tenant is enabled
    */
   public boolean isEnabled() {
      return this.enabled;
   }

   @Override
   public int hashCode() {
      return Objects.hashCode(id, name, description);
   }

   @Override
   public boolean equals(Object obj) {
      if (this == obj)
         return true;
      if (obj == null || getClass() != obj.getClass())
         return false;
      Tenant that = Tenant.class.cast(obj);
      return Objects.equal(this.id, that.id) && Objects.equal(this.name, that.name)
            && Objects.equal(this.description, that.description) && Objects.equal(this.enabled, that.enabled);
   }

   protected ToStringHelper string() {
      return MoreObjects.toStringHelper(this).omitNullValues().add("id", id).add("name", name)
            .add("description", description).add("enabled", enabled);
   }

   @Override
   public String toString() {
      return string().toString();
   }

}