package au.gov.amsa.ais.router.model;
   
   import java.util.Optional;
   
   import com.github.davidmoten.util.Preconditions;
   
   public final class Proxy {
       private final String host;
       private final int port;
      private final Optional<Authentication> authentication;
  
      private Proxy(String host, int port, Optional<Authentication> authentication) {
          Util.verifyNotBlank("host", host);
          Preconditions.checkNotNull(authentication);
          this.host = host;
          this.port = port;
          this.authentication = authentication;
      }
  
      public String host() {
          return host;
      }
  
      public int port() {
          return port;
      }
  
      public Optional<Authentication> getAuthentication() {
          return authentication;
      }
  
      public static Builder builder() {
          return new Builder();
      }
  
      public static class Builder {
  
          private String host;
          private int port;
          private Optional<Authentication> authentication;
  
          private Builder() {
          }
  
          public Builder host(String host) {
              this.host = host;
              return this;
          }
  
          public Builder port(int port) {
              this.port = port;
              return this;
          }
  
          public Builder authentication(Optional<Authentication> authentication) {
              this.authentication = authentication;
              return this;
          }
  
          public Builder authentication(Authentication authentication) {
              return authentication(Optional.of(authentication));
          }
  
          public Proxy build() {
              return new Proxy(host, port, authentication);
          }
      }
  
      @Override
      public String toString() {
          StringBuilder b = new StringBuilder();
          b.append("Proxy [host=");
          b.append(host);
          b.append(", port=");
          b.append(port);
          b.append(", authentication=");
          b.append(authentication);
          b.append("]");
          return b.toString();
      }
  
  }