package org.jcr_blog.commons.gravatar;
   
   /**
    * Parameter for Gravatar Request.
    * See Builder Pattern.
    * See http://de.gravatar.com/site/implement/images/ .
    * @author Sebastian Prehn <sebastian.prehn@planetswebdesign.de>
    */
   public class Parameter {
  
      // required parameter
      final String email;
  
      // optional parameters
      private Integer size = null;
      private Rating rating = null;
      private DefaultImage defaultImage = null;
      private boolean secure = false;
      private boolean forceDefault = false;
  
      public Parameter(final String email) {
          if(email == null) {
              throw new IllegalArgumentException("email must not be null");
          }
          this.email = email;
      }
  
      public Parameter size(final int size) {
          if (!(1 <= size && size <= 512)) {
              throw new IllegalArgumentException("images size has to be within 1px to 512px");
          }
          this.size = size;
          return this;
      }
  
      public Parameter rating(final Rating rating) {
          if (rating == null) {
              throw new IllegalArgumentException("rating must not be null");
          }
          this.rating = rating;
          return this;
      }
  
      public Parameter defaultImage(final DefaultImage defaultImage) {
          if(defaultImage == null) {
              throw new IllegalArgumentException("defaultImage must not be null");
          }
          this.defaultImage = defaultImage;
          return this;
      }
  
      public Parameter secure(final boolean secure) {
          this.secure = secure;
          return this;
      }
  
      public Parameter forceDefault(final boolean forceDefault) {
          this.forceDefault = forceDefault;
          return this;
      }
      
      public DefaultImage getDefaultImage() {
          return this.defaultImage;
      }
  
      public String getEmail() {
          return this.email;
      }
  
      public Rating getRating() {
          return this.rating;
      }
  
      public Integer getSize() {
          return this.size;
      }
  
      public boolean isSecure() {
          return this.secure;
      }
  
      public boolean isForceDefault() {
          return forceDefault;
      }
  
  }